51 Commits

Author	SHA1	Message	Date
mudler's LocalAI [bot]	9c85cacfe3	feat(audio-cpp): add the audio.cpp native backend (#11141) ... * backend(audio-cpp): add the native build scaffold Links 0xShug0/audio.cpp engine_runtime through its public framework headers and serves Health/Status. Model loading and the audio RPCs follow. Assisted-by: Claude:claude-opus-5 [Claude Code] Signed-off-by: Ettore Di Giacinto <mudler@localai.io> * backend(audio-cpp): keep the build-tree rpath at $ORIGIN Upstream sets CMAKE_BUILD_WITH_INSTALL_RPATH in its own directory scope, so CMake was appending its build-tree library dir to our target and baking an absolute build-host path into the shipped binary. Set BUILD_WITH_INSTALL_RPATH on the target so a package that forgets to bundle libggml*.so fails on the build machine too, instead of only on a user's box. Also document why EXCLUDE_FROM_ALL must stay on the add_subdirectory call, correct the claim that Ubuntu ships no gRPC CMake config, stop the pin comment from repeating the assignment token that bump_deps.sh rewrites, and make test-engine fail rather than pass when no test is registered. Assisted-by: Claude:claude-opus-5 [Claude Code] Signed-off-by: Ettore Di Giacinto <mudler@localai.io> * backend(audio-cpp): parse namespaced model options Splits option entries on the first colon so path values survive, and routes load./session. prefixes to the upstream load and session option maps. Assisted-by: Claude:claude-opus-5 [Claude Code] Signed-off-by: Ettore Di Giacinto <mudler@localai.io> * backend(audio-cpp): reject out-of-range numeric model options std::atoi is undefined once the digits exceed long and in practice wraps, so device:2147483648 was accepted and handed the ggml backend selector a device index of -2147483648 from a function whose error text promises a non-negative integer. Parse with strtol and reject on ERANGE, on a value above INT_MAX, and on any unconsumed trailing input. The error strings are unchanged. Name the whole entry in the unknown-key error too: an entry like ':value' has an empty key and left the user nothing to grep for in their YAML. Tests look keys up through a helper instead of map::at, so a prefix off-by-one fails one named check rather than aborting the binary and skipping the rest of the suite, and cover the overflow, negative and non-numeric paths. Assisted-by: Claude:claude-opus-5 [Claude Code] Signed-off-by: Ettore Di Giacinto <mudler@localai.io> * backend(audio-cpp): route LocalAI RPCs onto audio.cpp tasks Task-major resolution over the family's advertised capability set, with the voice-reference and instructions signals selecting cloning and voice design, and a streaming-to-offline fallback for server-streaming transcription only. Assisted-by: Claude:claude-opus-5 [Claude Code] Signed-off-by: Ettore Di Giacinto <mudler@localai.io> * backend(audio-cpp): use upstream's 'spk' task name and pin the preference order The SpeakerRecognition short name was 'spkrec', which audio.cpp neither prints nor parses; a name copied out of audio.cpp was rejected and a pinned 'spkrec' would not survive the engine boundary. Emit 'spk', keep 'spkrec' as an input-only alias, and correct the known-tasks lists. Three assertions were vacuous because their fixtures advertised a single task, so reversing a preference order or dropping the RPC name and the attempted pairs from the capability error all passed. Give them fixtures that can tell the orderings apart. Assisted-by: Claude:claude-opus-5 [Claude Code] Signed-off-by: Ettore Di Giacinto <mudler@localai.io> * backend(audio-cpp): convert sample, time and PCM units Integer nanosecond conversion so 44.1 kHz stays exact, float seconds for the VAD and diarization messages, and saturating s16le encode so an overshooting sample cannot wrap to the opposite sign. Assisted-by: Claude:claude-opus-5 [Claude Code] Signed-off-by: Ettore Di Giacinto <mudler@localai.io> * backend(audio-cpp): harden seconds_to_samples against NaN and overflow seconds_to_samples is the one entry point fed by untrusted-shaped input: a float-seconds timestamp off the wire, or a boundary from a model that diverged. Its guard covered only the low side, so NaN and out-of-range values fell through to an undefined double-to-int64 cast and came back as INT64_MIN. A hugely negative sample index used later as an offset or a length is a wild pointer rather than merely a wrong timestamp. Reject NaN with the !(x > 0) form and saturate before the cast. Also round instead of truncating there. These functions exist to cross the float seconds boundary the VAD and diarize messages use, and truncation lost a sample about half the time on the samples-to-seconds-and-back round trip, starting at n=1. Pin the decode scale at INT16_MIN, pin nanosecond truncation on a nonzero fraction, and record why the clamp argument order in f32_to_s16le is load-bearing for NaN. Assisted-by: Claude:claude-opus-5 [Claude Code] Signed-off-by: Ettore Di Giacinto <mudler@localai.io> * backend(audio-cpp): map NaN PCM samples to silence explicitly f32_to_s16le relied on std::min argument order to keep a NaN sample away from std::lround, whose result is unspecified for NaN. That was too subtle to rest on a comment, and the comment was itself wrong: it warned against a spelling that the outer std::max already catches, while three real spellings leak, including std::clamp, which is the idiomatic C++17 way to write the same clamp and so the likeliest future edit. Divert NaN before the clamp and encode it as 0. A NaN sample rendered as a full-scale click is worse audio than a dropped one, and this unit converts audio that may have originated off the wire. Pin it with an exact-value check rather than a range check, since all three outcomes the plausible spellings produce are finite and inside full scale, plus an invalid-operation check that fails unless the NaN is diverted before any ordered comparison. That second check is what catches modernizing the clamp and dropping the guard together. Also bound the seconds round-trip comment, which claimed unconditionally what holds only below roughly 2^23 samples, and document NaN, saturation and that bound in the header. Assisted-by: Claude:claude-opus-5 [Claude Code] Signed-off-by: Ettore Di Giacinto <mudler@localai.io> * backend(audio-cpp): assemble transcripts from runtime spans The top-level transcript text is TaskResult.text_output verbatim. audio.cpp carries text nowhere else: speech_segments, speaker_turns and word_timestamps hold spans and labels only, so deriving the text from them empties the transcript for any producer that omits word timing, VibeVoice diarized ASR included. Fixtures cover every observed producer shape. Assisted-by: Claude:claude-opus-5 [Claude Code] Signed-off-by: Ettore Di Giacinto <mudler@localai.io> * backend(audio-cpp): keep a nested speaker turn's own label A segment sourced from speaker_turns re-derived its speaker by greatest overlap. A turn's overlap with its own span is the largest possible, so a turn nested inside another speaker's turn could only tie with the container, and the tie went to whichever came first. sortformer_diar binarizes each speaker independently and sorts by start sample, so the container always comes first and the interjecting speaker was silently erased from DiarizeSegment.speaker. choose_segment_spans now carries the label out with the span. Also pins the nearest-segment fallback against measuring from either endpoint or from segment position, which a trailing-only stray word could not do, and exercises the empty-word guard in join_words. Two fixtures that pin a rule but do not mirror any pinned family are relabelled defensive. Assisted-by: Claude:claude-opus-5 [Claude Code] Signed-off-by: Ettore Di Giacinto <mudler@localai.io> * backend(audio-cpp): serialize runs with a wedge-aware guard audio.cpp sessions are not reentrant and a wedged CUDA call cannot be cancelled, so a plain mutex would pile every worker thread behind a stuck GPU. Callers waiting past the configured bound, or arriving while the holder has already overrun it, fail fast instead. A caller that queues behind a healthy run deliberately does not stamp the clock: only the thread that takes the lock does. Stamping on arrival would restart the wedge clock on every request and hide a stuck run from everyone behind it, which is the pile-up this guard exists to prevent. Assisted-by: Claude:claude-opus-5 [Claude Code] Signed-off-by: Ettore Di Giacinto <mudler@localai.io> * backend(audio-cpp): serialize inference through an InferenceLane One audio.cpp model is loaded per backend process and its sessions are not reentrant, so concurrent gRPC handlers have to take turns. Serialization alone is not enough: a wedged GPU call cannot be cancelled from userspace, so an unbounded queue behind one stuck run would swallow every gRPC worker thread until the process is useless. InferenceLane gives handlers a lane with room for one runner. LaneEntry occupies it for a scope and gives it back on every exit, including an exception, and is the only way to take the lane at all: occupy/vacate are private with LaneEntry as the sole friend, so a caller cannot acquire without holding something that releases. LaneEntry is immovable on purpose, because a moved-from entry would have to stop releasing while the lane still recorded it as occupied. A caller either waits indefinitely or brings a millisecond budget. A bounded caller that cannot get in fails instead of waiting on, and a bounded caller whose budget is already shorter than the age of the run in the lane fails immediately, which is what stops a queue forming behind a wedged run. The two failures carry different text: one names the wait it exhausted, the other states the measured age of the run without claiming to know why it is long, since a short budget meeting a legitimately long run lands there too. The run's age is stamped only after acquisition. A waiter that published itself as holder would restart the measurement and hide a genuinely stuck holder from every caller behind it. Budget negotiation and the overrun decision are pure functions taking their inputs explicitly, so both are covered without threads or sleeping. The per-model ceiling arrives as an int of milliseconds; a request may tighten it and may never loosen it. Replaces the previous run_guard unit, which was a derivative of an Apache-2.0 file upstream and could not stay in an MIT tree. Written from a behaviour contract with no reference to the removed code. Tests: 65 checks, standard library only, single translation unit, clean under -Wall -Wextra. Mutation tested at 23/23 killed; two of those mutants exposed missing coverage and the tests were extended until they died. ThreadSanitizer clean. Assisted-by: Claude:claude-opus-5 [Claude Code] Signed-off-by: Ettore Di Giacinto <mudler@localai.io> * backend(audio-cpp): make the B10 test able to fail, and document LaneEntry Review of the previous commit found the B10 test could not fail for the reason it was named. It aged the in-flight run to about 120 ms and then tried two budgets, 30 ms and 60 ms, both under that age, so both callers took the fail-fast path. "The two failure modes do not share one message" was comparing two fail-fast messages that differ only in the budget they print, and the timeout path was never reached. The second budget is now 400 ms, well over the run's age, so that caller queues and times out, and a new check asserts which path each caller took instead of inferring it from inequality. A mutant that makes the fail-fast path emit the timeout message previously died only on B4 and B8 checks; it now also dies on B10. Comment-only changes elsewhere. LaneEntry now says it is not reentrant and does not detect reentrancy: a second entry on a thread that already holds the lane surfaces as LaneUnavailable with a positive budget, but parks silently in unbounded mode, which matters because a handler may hold one across a whole stream. The immovability note now names the shapes that work, an optional emplaced in place or a unique_ptr, rather than saying to hold the entry indirectly without saying how; all three documented forms were compiled before being written down, which is how the note came to say that an optional of an immovable type cannot itself be returned. The header's explanation of why fail-fast exists is reworded. Two clauses traced back to a specification written after reading the Apache-2.0 upstream header, and while that was judged de minimis, this unit was rewritten precisely to carry no upstream expression at all. The margin table in the report was also wrong about which wall-clock margins are load-sensitive: there are four, not one, and the tightest is the B3 arrival check, which is now flagged at the call site. No margin value changed and none moved across 65 runs. Assisted-by: Claude:claude-opus-5 [Claude Code] Signed-off-by: Ettore Di Giacinto <mudler@localai.io> * backend(audio-cpp): gate model loading on the audio.cpp family Refuses any GGUF without an audiocpp.model_spec.family key and any non-GGUF path without an explicit family option, so the model loader's greedy backend probe cannot bind an unrelated llama.cpp GGUF to this backend (#9287). Assisted-by: Claude:claude-opus-5 [Claude Code] Signed-off-by: Ettore Di Giacinto <mudler@localai.io> * backend(audio-cpp): load models and cache sessions per task Loads one ILoadedVoiceModel and creates an IVoiceTaskSession lazily per (task, mode), so the same model serves both the unary and streaming RPCs. LoadModel derives the family from GGUF metadata or an explicit option and fails with INVALID_ARGUMENT otherwise, so a failed load is a gRPC error the backend probe can see. audiocpp_backend::Task mirrors engine::runtime::VoiceTaskKind positionally, and drift there is silent: every unit still compiles and every test still passes while the backend runs a different task. Two mechanisms pin it. The static_asserts in loaded_model.cpp catch an insertion or a reorder, and -Werror=switch on that one file turns an appended upstream enumerator into a build failure rather than a warning in a 600 file log. Assisted-by: Claude:claude-opus-5 [Claude Code] Signed-off-by: Ettore Di Giacinto <mudler@localai.io> * backend(audio-cpp): stop aborting the process on SIGTERM The signal handler called grpc::Server::Shutdown directly. Shutdown takes an absl::Mutex, which is not async-signal-safe: the handler can interrupt a thread already holding that mutex, and abseil's deadlock detector responds by aborting. Every SIGTERM therefore ended in exit 134 and a 'dying due to potential deadlock' stack rather than a drained shutdown. The handler now sets a lock-free atomic and returns. Server::Wait moves to a helper thread so the main thread can poll that flag and call Shutdown itself, outside any signal context. A condition variable would not have helped, because notifying one from a handler is not async-signal-safe either. SIGTERM and SIGINT both exit 0 with no stack trace, where both previously exited 134. Assisted-by: Claude:claude-opus-5 [Claude Code] Signed-off-by: Ettore Di Giacinto <mudler@localai.io> * backend(audio-cpp): correct the status, lifetime and state contracts of LoadedModel An environment fault during session creation was reported as UNIMPLEMENTED. A missing libggml-cpu-*.so surfaced to the client as 'family silero_vad advertises vad/offline but refused to create the session: Failed to initialize CPU backend', which tells LocalAI the model cannot do this and must never be retried, and sends an operator hunting a capability bug instead of a packaging one. A throw from create_task_session is now a plain runtime_error, so it maps to INTERNAL. Only a null return, where the family genuinely declined, stays a CapabilityError. The model.'s task: option was parsed and then dropped: it lived in a local that died at the end of LoadModel and had no route to RequestShape::pinned_task. LoadedModel now keeps it and exposes pinned_task(). The global model becomes a shared_ptr reached through snapshot(). An audio RPC runs for seconds and cannot hold g_model_mu for its duration, so under a unique_ptr a Free arriving mid-request would destroy the model underneath it. Handlers now take a counted reference and whichever finishes last does the teardown, outside the lock. session_for documents the streaming state contract rather than resetting the session itself. Resetting on a cache hit was tried first and is not possible: silero_vad throws 'session prepare() must be called before Silero VAD reset()', so it would turn an ordinary second fetch into a hard error. start_stream's base implementation is already a reset, so a caller that runs prepare then start_stream per stream gets a clean session; a probe against the bundled silero_vad confirms an identical replay when it does and a carried-over stream when it does not. Also: an unknown backend: name is rejected before the model loads rather than after; MainGPU is parsed instead of passed through std::atoi, which turned 'gpu1' into device 0 silently; and device carries a device_set flag, because 0 is both the default and a real device index, so MainGPU was overriding an explicit device:0 that the neighbouring threads: handling promises will win. Assisted-by: Claude:claude-opus-5 [Claude Code] Signed-off-by: Ettore Di Giacinto <mudler@localai.io> * backend(audio-cpp): serve the VAD and Diarize RPCs Both emit float seconds, converted from the runtime's sample-index spans, and both take a counted reference to the loaded model through snapshot() and hold it for the whole call: a Free arriving mid-request drops only the global's reference, so whichever request finishes last destroys the model instead of one of them running on freed weights. An AddressSanitizer build reproduces exactly that heap-use-after-free inside ggml_vec_dot_f32 when the handler keeps a raw pointer instead, which is why the shape is what it is. The inference lane is taken before session_for, not after. session_for reads and writes an unsynchronised session cache and the offline run calls prepare(), which mutates the session, so both belong inside the lane. Diarize routes before it reads the input file, so a family that cannot diarize at all says so rather than complaining about the audio first. Its per-segment text stays empty because audio.cpp's SpeakerTurn carries a span and a speaker label only, and nested or overlapping turns are passed through untouched: a sortformer turn inside another speaker's turn is correct output for overlapped speech, and LocalAI is overlap-tolerant downstream. Duration counts frames rather than floats, so a stereo input does not report twice its length. Verified end to end against upstream's bundled silero_vad, which needs no download, using the bundled 16 kHz speech asset: a synthetic tone returns nothing, correctly, because silero detects speech and a sine is not speech. Assisted-by: Claude:claude-opus-5 [Claude Code] Signed-off-by: Ettore Di Giacinto <mudler@localai.io> * backend(audio-cpp): enforce ModelIdentity on VAD and Diarize audio-cpp was the only C++ backend without the model-identity guard, and no later task in the plan added it. pkg/grpc/server.go enforces checkModelIdentity on exactly these two RPCs, for the reason #10952 records: in distributed mode a worker can recycle a stopped backend's gRPC port for another model's backend, and the controller's liveness-only probe cannot tell a stale cached route from a live one. Without this guard a stale route gets a different model's VAD or diarization answer back with a 200. The loaded identity lives on LoadedModel rather than in a separate global, which is where this differs from llama-cpp. A handler holding the model through snapshot() then necessarily judges against the identity that model was loaded with, and a concurrent reload cannot swap one without the other. The refusal is NOT_FOUND carrying the verbatim grpcerrors.ModelMismatchSentinel substring. session_for and run_offline now take a const LaneEntry & proof-of-holding parameter. The rule that both must run under the inference lane was prose, which is exactly how the plan came to specify the inverted order; it is now a compile error. Restoring the inverted order fails to build rather than racing on an unsynchronised session map with a mutating prepare(). Diarize's speaker-hint comment claimed the dropped hints were "not a silent failure". From the caller's side that is what they are, and backend.proto documents num_speakers as forcing, so the comment now says plainly that the forwarding is dead for sortformer and that the family which lands must either honour num_speakers or refuse it. read_audio_file inspects the error_code from exists(), so an unsearchable parent directory no longer reports as a missing file. The VAD handler records the stimulus that actually works, since silero correctly ignores synthetic tones and the next task would otherwise rediscover that. Assisted-by: Claude:claude-opus-5 [Claude Code] Signed-off-by: Ettore Di Giacinto <mudler@localai.io> * backend(audio-cpp): make the lane and identity guards structural Two hardenings ahead of the eleven handlers still to be written, both of which get harder to retrofit later. The lane proof-of-holding parameter was a const reference, which binds to a temporary, so session_for(rpc, shape, model->acquire(0)) compiled. Each such temporary dies at the end of its own full-expression, releasing the lane between two calls that must share one: precisely the split the parameter exists to prevent, and the form a future author is most likely to reach for because it reads as tidy. A non-const reference requires an lvalue, so the temporary form now fails to compile while the named-local handlers build unchanged. The header comment no longer implies the check is total either: it proves a lane was taken, not that it is this model's lane. The identity check was two lines each handler had to remember, with nothing failing if a new one forgot them and no C++ equivalent of model_identity_modalities_test.go to notice. snapshot() becomes snapshot_unchecked(), whose only legitimate caller is Status, since HealthMessage carries no ModelIdentity. Handlers go through snapshot_for(), which takes the counted reference, refuses when nothing is loaded, and runs the identity check before anything can route. Every handler already has to call something to obtain the model, so the guarded call is now the shortest path and skipping it means deliberately typing snapshot_unchecked. A convention that has to be remembered can rot; this cannot. Verified: the temporary-argument and inverted-order forms each fail to compile with the expected diagnostic, the real handlers build, and bypassing the guard in Diarize alone turns the identity test red on that RPC while VAD stays green. Assisted-by: Claude:claude-opus-5 [Claude Code] Signed-off-by: Ettore Di Giacinto <mudler@localai.io> * backend(audio-cpp): serve the AudioTranscription RPC Adds result_map, the engine-to-proto boundary, and wires the offline transcription RPC. The handler branches on the ROUTED task: for Asr the request's prompt is whisper-style decoding context and becomes a request option, for Alignment the same field IS the transcript to align and becomes the text input. Routing has already decided which. The result text is TaskResult.text_output verbatim and is never derived from the segments. audio.cpp carries transcript text in text_output and nowhere else, so deriving it returns an empty transcript for every producer that reports segments without word timing. transcript_assembly already enforces that; this commit's job is not to undo it at the proto boundary, and result_map_ctest pins it there. read_audio_file now takes the sample rate the caller needs. Both file-fed speech handlers ask for 16 kHz mono, for two reasons: silero_vad and sortformer_diar refuse anything else outright, which turned an ordinary 44.1 kHz upload into INTERNAL, and nemotron_asr emits word timestamps in its own 16 kHz feature domain whatever the input was, so only a 16 kHz buffer makes the emitted nanoseconds right. Zero keeps the file's native rate and channels, which is what source separation will need. LoadedModel::check_can_serve answers a capability refusal before the lane is taken and before the input file is read. Routing is a pure read of the immutable capabilities, so a model that cannot serve an RPC no longer waits out somebody else's run to say so. VAD and Diarize use it too. Assisted-by: Claude:claude-opus-5 [Claude Code] Signed-off-by: Ettore Di Giacinto <mudler@localai.io> * backend(audio-cpp): stop linking sentencepiece's vendored protobuf engine_runtime links sentencepiece, whose default SPM_PROTOBUF_PROVIDER builds the protobuf-lite 3.14.0 sources it vendors. The generated backend.pb.cc is built against the toolchain's protobuf 3.21.12. Both ended up in the binary: 476 google::protobuf:: symbols came from the archive, 278 of them also defined by libprotobuf.so, and the archive won, because once ld pulls a member in for sentencepiece's own code every reference binds to the definitions that member carries. The visible symptom is one function. ParseContext::ParseMessage(MessageLite*, const char*) is what a generated _InternalParse calls for a submessage field and for nothing else, so flat messages parsed and nested ones did not: a TranscriptResult carrying segments serialized to correct bytes that the same process could not read back, and TranscriptLiveRequest, a oneof of submessages, could not have been parsed at all. Underneath that, 3.21 generated code was running 3.14 arena, ArenaStringPtr and ExtensionSet code. -Wl,--exclude-libs does not fix it. It makes those symbols LOCAL in .dynsym and the parse still fails, because the binding was decided at static link time and no visibility flag revisits it. Setting SPM_PROTOBUF_PROVIDER to "package" before add_subdirectory points sentencepiece at the protobuf the generated code was already built against. Zero google::protobuf:: definitions remain in the executable afterwards, every nested message round trips, and citrinet_asr, which parses a SentencePiece ModelProto at load time and would break first if this were wrong, still tokenizes and transcribes correctly. Assisted-by: Claude:claude-opus-5 [Claude Code] Signed-off-by: Ettore Di Giacinto <mudler@localai.io> * backend(audio-cpp): fix the segment text a transcription response is built from Segment text is not decoration. core/http/endpoints/openai/transcription.go routes response_format text, srt, vtt and lrc through schema.TranscriptionResponse, which builds the entire body out of Segments[].Text and never reads the top-level text. So for those four formats the segment text IS the response. nemotron_asr emits one word_timestamp per SentencePiece token, and the word boundary is carried as a LEADING SPACE on the piece ("So", "me", " call"). join_words inserted a space unconditionally, so response_format=text returned "So me call me na ture ," while the correct sentence sat unread in the top-level field. The separator is now chosen from the words themselves: whole words are space-joined, subword pieces are concatenated, and one leading space anywhere selects the latter. Concatenating the real nemotron pieces reproduces text_output exactly, verified end to end. This does not touch the top-level text, which is still text_output verbatim. The rule that forbids deriving the transcript from the segments is about the direction segments -> text; segment text has no source other than its words. Two smaller corrections in the same area: timestamp_granularities ["word"] set only "word_timestamps", a key no family in the pinned upstream reads. It now sets "return_timestamps", which qwen3_asr does read and which both runs its forced aligner and shortens its chunk window, so asking for word granularity no longer silently returns nothing. The request-option comment claimed more than it delivered. prompt, translate and temperature are read by no ASR family, and are forwarded only so a family adopting them works unchanged; the comment now says so per key, and gives TranscriptRequest.diarize the same explicit treatment threads already had. Also: the shipping target now carries -Wall -Wextra -Wpedantic, which it never did, so "the build is clean" starts meaning something; and fill_transcript_result no longer swallows a null response pointer, since answering OK with an empty transcript is the one failure mode this unit exists to prevent. Assisted-by: Claude:claude-opus-5 [Claude Code] Signed-off-by: Ettore Di Giacinto <mudler@localai.io> * backend(audio-cpp): serve the AudioTransform RPC Covers voice conversion, singing voice conversion, speech to speech and source separation, the four tasks LocalAI's AudioTransform can represent. AudioTransformResult carries one dst while htdemucs and mel_band_roformer produce several named stems from a single run, so inference runs ONCE, every stem is written as a sibling file <dst-stem>.<name>.<ext>, and params[stem] selects which one dst receives, defaulting to vocals and falling back to the first output. An unknown stem name is INVALID_ARGUMENT listing the real stem names rather than a silent substitution, and the selection happens before the first write so a refused request leaves no files behind. params[stem] is consumed here and is not forwarded into the engine's request options. The stem decision lives in stem_selection, which is stdlib only and therefore tested by backend/cpp/run-unit-tests.sh. It also validates the names, because they come from the model (htdemucs reads them from the GGUF's config.sources) and each becomes a component of a path this backend writes: a name carrying a path separator would escape the caller's output directory, and two stems sharing a name would silently overwrite one another. Both files are read at their native rate and channel count. Separation forces it, since demucs and roformer refuse any rate but 44.1 kHz and lose the stereo image that separates a centred vocal from a wide mix. The conversion families all resample internally (seed_vc, vevo2, miocodec, chatterbox were each checked), so passing the file through unchanged is also strictly better than band limiting it to 16 kHz first. Verified end to end against htdemucs f16 on a 44.1 kHz stereo mix: four stems plus dst, dst byte identical to the selected stem, params[stem] selecting a different one, an unknown stem refused with no files written, and mono input preserved as mono output. Also against miocodec for the single output path, where params[stem] is refused rather than ignored. Assisted-by: Claude:claude-opus-5 [Claude Code] Signed-off-by: Ettore Di Giacinto <mudler@localai.io> * backend(audio-cpp): refuse an impossible stem early, and stop blaming the caller for a failed write Four fixes from the first review of the AudioTransform RPC. check_can_serve now returns the resolved route, so params[stem] on a route that is not source separation is refused from the route instead of after a full inference: 11 ms rather than the 4.5 s a miocodec conversion costs, and far worse on seed_vc or vevo2. The post-run refusal stays as the backstop for a separation-routed family that returns no stems anyway. The typo'd-stem-name case still needs the run, since no framework header publishes the stem names before one. Stem names carrying control bytes are refused. GGUF strings are length prefixed and demucs reads its sources from JSON, so an embedded NUL survives to here: two names differing only after the NUL are distinct std::strings, so the duplicate check passes them, and then path::c_str() truncates both and they open the same file. That is exactly the silent overwrite the duplicate check exists to prevent, with the .wav lost as well. A failed write is now INTERNAL rather than INVALID_ARGUMENT. The destination is LocalAI's own generated-content directory, not anything the caller named, so a full disk or a permission fault there is a server fault and is worth retrying, which is the opposite of what INVALID_ARGUMENT tells a client. An empty output path stays INVALID_ARGUMENT. Two comment corrections and one clarification: the separators' required rate is their checkpoint's declared samplerate rather than a hardcoded 44100, seed_vc resamples with soxr and falls back to sinc-hann, and the "no files left behind" guarantee covers a refused request, not a write that fails partway through the loop. Assisted-by: Claude:claude-opus-5 [Claude Code] Signed-off-by: Ettore Di Giacinto <mudler@localai.io> * feat(audio-transform): stop folding every upload to 16 kHz mono, and name the separation stems Two defects that made source separation unusable through LocalAI's own API, even though the backend served it correctly over gRPC. /audio/transform normalized every upload to 16 kHz mono s16 through utils.AudioToWav, with no way past it. htdemucs and mel_band_roformer refuse any rate but their checkpoint's own and separate a centred vocal from a wide mix using the stereo image, so every separation request through the HTTP API died with "HTDemucs prepare() sample rate mismatch: expected 44100, got 16000" while the same call over gRPC worked. The fold is not wrong, it is backend-specific: LocalVQE's echo cancellation genuinely wants 16 kHz mono and needs the reference in the same shape. So it becomes a declaration, BackendCapability.AudioTransformInputMono16k, set for localvqe and for nothing else. A backend that declares nothing gets its upload unchanged, which means no backend has to opt in to work. utils.AudioToWavPreservingShape is the non-folding conversion: a 16-bit PCM WAV passes through byte for byte at any rate and channel count, anything else is transcoded to WAV with its rate and channel layout kept. The other defect is that the run-once stem design bought nothing. A separation backend writes every stem beside dst from one inference, but AudioTransformResult carried only dst, so the other three were files no caller could find and a caller wanting all four had to run four separations. AudioTransformResult grows a repeated AudioTransformStem, the backend fills it, core/backend validates that each path really is inside the generated-content directory it handed over, and the endpoint publishes them as an X-Audio-Stems JSON header beside the existing X-Audio-Input-Url. JSON because a stem name is the model's own string and could contain any separator a hand-rolled format would use. Verified end to end through the HTTP endpoint with htdemucs f16 on a 44.1 kHz stereo file: 200 with a 44.1 kHz stereo body, all four stems named and fetchable through /generated-audio/, body byte identical to the selected stem, and params[stem]=drums returning a different one. The same upload sent to a model whose backend is localvqe still reaches the backend as 16 kHz mono, confirmed both by the engine's own rate refusal and by the persisted input file. Assisted-by: Claude:claude-opus-5 [Claude Code] Signed-off-by: Ettore Di Giacinto <mudler@localai.io> * fix(audio-transform): reject extensible WAV from the passthrough, escape stem URLs, convert stems with dst Four fixes from the second review, plus one bug they made visible. isPCM16Wav tested only the bit depth, and go-audio's IsValidFile never looks at the format tag, so a 16-bit WAVE_FORMAT_EXTENSIBLE (0xFFFE) upload was passed through untouched where the old fold would have transcoded it. audio.cpp's WAV reader accepts 16-bit only when the tag is 1, so such a file died with "unsupported WAV encoding". Extensible is what many DAWs and Windows tools write and music files are this endpoint's new headline input, so it is a first-contact failure rather than a corner. The check now requires tag 1, with a spec that fails against the old implementation. Stem URLs are percent-escaped. A stem name is the model's own string and legally contains a space, a '#', a '?' or a '%'; an unescaped '#' truncates the URL before the request is even sent. The name field keeps the raw name. sample_rate and response_format are applied to the stems as well as to dst. Applying beat documenting: dst IS one of those stems, so leaving them alone broke the "dst duplicates the selected stem" invariant the whole design rests on, and both conversions are no-ops when unset. A stem whose conversion fails is dropped from the header rather than advertised in the wrong shape. Verifying that turned up why it had never been noticed: the two fields were never bound at all. The request arrives as multipart/form-data and echo's binder falls back to the FIELD NAME without a form tag, matching only case-insensitively, so "SampleRate" never matched "sample_rate" and "Format" never matched "response_format". Both were documented in the endpoint table and silently ignored. Two form tags fix it, and with them the conversion is observable end to end. Docs: audio-transform.md now documents what LocalAI does to an upload before the backend sees it, which backend gets the 16 kHz mono fold and why, params[stem], and the X-Audio-Stems header with a worked example. Also records the known limitation that the fold lookup is on the bare backend name, so pinned variants (vulkan-localvqe) do not match, and points at IsLlamaCppBackend as the suffix-tolerant precedent. Assisted-by: Claude:claude-opus-5 [Claude Code] Signed-off-by: Ettore Di Giacinto <mudler@localai.io> * backend(audio-cpp): serve the TTS and SoundGeneration RPCs TTSRequest.voice is treated as a speaker reference clip when it names an existing regular file, which makes routing prefer VoiceCloning, and as a named preset otherwise, in which case it travels as VoiceReference::cached_voice_id. Both the clip and SoundGenerationRequest.src are read at the file's own rate and channel count: upstream's own CLI and server do exactly that, every consuming family resamples internally and mostly with a better resampler than ours, and ace_step and stable_audio resample their input per channel, so a downmix here would delete the stereo image they are built to consume. The request builders live in their own unit rather than in grpc-server.cpp's anonymous namespace so they can be tested; grpc-server.cpp has a main() and cannot be linked into a test binary. The option keys are the whole point of these functions, so each one was grepped against the pinned upstream and the accounting is written down beside it. instructions maps to "instruct", which is what upstream's own server maps the OpenAI field to and what qwen3_tts and omnivoice read, and to "caption" for irodori_tts; the style tag is spelled "instruct" too, because "instructions" is looked up nowhere. duration maps to "duration_seconds", read by all three generation families, with the proto's own name kept only as a forward-tolerant alias. Keys that no family reads say so. Both handlers answer a capability refusal before taking the lane and before any file read, so a model that cannot synthesise does not queue behind somebody else's run to be told no. Assisted-by: Claude:claude-opus-5 [Claude Code] Signed-off-by: Ettore Di Giacinto <mudler@localai.io> * backend(audio-cpp): stop emitting an empty style language, and name the missing clip StyleCondition::language was set whenever has_language() was true, with no !empty() guard, while the language option twelve lines below had one. core/backend/tts.go sets Language unconditionally, so has_language() is true on every request LocalAI sends and carries "" when the caller named none. An engaged-but-empty style language is worse than an absent one: supertonic reads text_input->language behind its own !empty() guard and then overrides it from style->language with no guard at all, so "" replaced its "en" default and its tokenizer threw "invalid Supertonic language: ". Every /v1/audio/speech request that set instructions and no language would have been an INTERNAL against a supertonic model. A plain request never saw it, because the style condition only exists when instructions are non-empty, which is why the chatterbox end to end run did not catch it. TTS also stops discarding the Route that check_can_serve already returns. A family routed to voice cloning without a reference clip used to be refused from inside its own prepare(), which meant an INTERNAL naming neither the RPC nor the field to set; chatterbox advertises clon and no tts, so that was every preset-only request to it. It is now an INVALID_ARGUMENT naming TTSRequest.voice, answered in about 4 ms, and it cannot misfire because has_voice_reference is what selected cloning in the first place. Reading CapabilitySet::supports_speaker_reference to generalise this stays a follow-up. The src read carries a written caveat rather than a family blocklist, because ace_step's editing routes legitimately need src: setting src on a stable_audio model corrupts the heap and aborts the process in the pinned upstream, and the only thing keeping that off the network is that schema.ElevenLabsSoundGenerationRequest has no field for it. Nobody reading that Go schema would know why, so the reason is recorded where the field is read. build_tts_shape is extracted so TTSStream cannot describe the same request differently, and it arrived untested: two mutations of it survived until a test_tts_shape case was added. Assisted-by: Claude:claude-opus-5 [Claude Code] Signed-off-by: Ettore Di Giacinto <mudler@localai.io> * backend(audio-cpp): serve the TTSStream and AudioTranscriptionStream RPCs TTSStream leads with a streaming WAV header carrying 0xFFFFFFFF sizes, matching the convention backend/go/vibevoice-cpp established, so an HTTP client can start playback before the full PCM exists. Its chunks are read from StreamEvent::named_audio_outputs and not audio_output: supertonic, omnivoice and voxcpm2 all put their streamed audio there and leave audio_output empty until the very end, so reading the obvious field yields a stream with no audio in it. The finish_stream result is the family's own merged whole rather than a tail, so it is emitted only when nothing was streamed. Streaming transcription sends incremental deltas and degrades to a single delta plus the final result on families that offer no streaming ASR, which is the same message sequence with fewer deltas. The four streaming ASR families disagree on what partial_text means: nemotron_asr, vibevoice_asr and higgs_audio_stt report incremental fragments while voxtral_realtime reports the whole hypothesis and reports it twice, so the reconciliation lives in one tested unit rather than in the handler. nemotron_asr reports only through the stream event sink, and only from inside finalize, so the audio driver installs one and clears it again before returning: the session is cached and a sink left holding the caller's frame is a use after free waiting for the next stream. begin_stream is now the only implementation of the streaming state obligation, prepare then start_stream. Streaming sessions are cached, and what clears the previous stream is start_stream's reset; a family override that dropped it would break every call site with no compile error, so there is one call site. Assisted-by: Claude:claude-opus-5 [Claude Code] Signed-off-by: Ettore Di Giacinto <mudler@localai.io> * backend(audio-cpp): keep streaming deltas on UTF-8 boundaries, refuse dtypes that abort TranscriptStreamResponse.delta is a proto3 string, whose wire format requires valid UTF-8. voxtral_realtime reports its hypothesis as a concatenation of raw token BYTES (tokenizer_text.cpp:171-183), so the cumulative difference between two consecutive reports is eventually a lone continuation byte, and the C++ runtime serializes that with only a logged warning while the Go runtime refuses to unmarshal it: the client loses the remaining deltas AND the final_result. Measured on a trace of a non-ASCII sentence, 11 of 31 messages failed to unmarshal and every accented character was lost. TranscriptDeltaTracker now holds back an incomplete trailing sequence and merges it into the next fragment; reconcile flushes it, which it always can because the final text is complete. The same trace now unmarshals in full with zero failures. A streaming buffer whose float count is not a whole number of frames is refused rather than truncated. The integer division dropped the tail floats from the fed audio and therefore from the transcript, with no diagnostic; vibevoice_asr refuses the same thing from the other side of the call. A supertonic GGUF whose weights are not f32 is refused at load. It reaches ggml_concat with mismatched operand types and ggml_abort takes the whole backend process down on the first request, so nothing downstream can report it: the model loads, then every request kills the process. Attributed rather than assumed, the unary TTS path aborts identically, and upstream records that package as untested. The refusal names the orig package and says what to run before deleting the guard. Assisted-by: Claude:claude-opus-5 [Claude Code] Signed-off-by: Ettore Di Giacinto <mudler@localai.io> * backend(audio-cpp): stop a repeated lead byte from orphaning the next delta The first UTF-8 fix closed the cumulative half only. Rule 2 discards a fragment the known text already starts with, and when that fragment is the LEAD BYTE of a new character it looks exactly like a repeat of an older character beginning with the same byte. It was discarded rather than held, its continuation bytes then arrived alone and began the next delta, and utf8_complete_prefix_length only ever inspected the trailing sequence, so a delta invalid at the FRONT went out whole. Through a real Go proto.Unmarshal the review's four-character repro gave 3 deltas, 2 unmarshal failures and a lost transcript. Reachable from the incremental families, not only from voxtral: nemotron_asr's decoder cuts at a byte offset and vibevoice_asr's common_prefix_size compares bytes, so both split characters. Measured over 30,000 randomized incremental traces, 53.28% of Japanese traces and 9.52% of French ones carried at least one delta the Go runtime refuses. Two changes. Rule 2 no longer judges a fragment that ends mid-character, so the lead byte is held instead of swallowed and the character survives intact; the cost is a few duplicated bytes in a shrinking cumulative report, which no pinned family produces. release() additionally drops leading orphan continuation bytes, so no delta can begin mid-character whatever the rules above it decide. Losing a byte keeps the stream alive; emitting one ends the RPC and takes the final_result with it. Post-fix all 60,000 traces produce zero unmarshal failures, and the cumulative streams plus both pure-ASCII incremental streams are byte-identical to the previous commit, so nothing changed for the families already working. The weight-dtype allow list moves to family_gate, where it is stdlib-only and pinned by a test rather than only by a comment. Two comment citations corrected. Assisted-by: Claude:claude-opus-5 [Claude Code] Signed-off-by: Ettore Di Giacinto <mudler@localai.io> * backend(audio-cpp): read only an exact repeat as a repeat, not any prefix Rule 2 discarded any partial the known text merely started with. For a cumulative family that is a duplicate; for an incremental family it is an ordinary short fragment that happens to coincide with the start of the transcript, and it was dropped, silently corrupting the text. Pure ASCII, no multi-byte character anywhere: the fragments "pure ", "ascii ", "trans", "c", "ri", "p", "t" left the client holding "pure ascii transcrit". Over 5,000 randomized traces per transcript, 9.50% of pure-ASCII and 29.12% of French traces ended with the client holding something other than final_result.text, with a 200 and no diagnostic. Both incremental families emit fragments that small routinely, since nemotron_asr cuts at a byte offset and vibevoice_asr at a common prefix. Narrowing rule 2 to an exact repeat drives that to zero on all six transcripts and changes no cumulative stream at all: 30,000 randomized cumulative traces are byte-identical to the previous commit. What rule 2 guarded was established from upstream rather than from its own comment. The only duplicate any pinned family produces is voxtral_realtime's, where process_available_stream_chunks feeds each event to the sink from inside its loop and returns the last of the batch, so that event arrives twice with byte-equal text. A duplicate is an exact repeat, so equality still covers it. The case given up is a cumulative report that SHRINKS, which no pinned family can produce: voxtral decodes a token vector that is only push_back'ed and cleared by reset(), so within a stream it can only grow. Assisted-by: Claude:claude-opus-5 [Claude Code] Signed-off-by: Ettore Di Giacinto <mudler@localai.io> * backend(audio-cpp): serve the AudioTranscriptionLive RPC The one bidirectional stream this backend serves. The client sends a TranscriptLiveConfig, then TranscriptLiveAudio frames; the server acknowledges with ready, emits deltas as the audio arrives, and sends final_result once the read side closes. There is no offline fallback: live transcription has to consume audio incrementally, so a family with no streaming ASR is refused rather than served a batch run, which is what this RPC's Streaming-only mode_candidates list already says. The driver is a new sibling of run_streaming_audio, run_streaming_live, because the audio does not exist yet: instead of slicing a buffer it pulls frames from the caller until the read side closes. It installs the same ScopedStreamSink in the same order, which is not optional, since nemotron_asr returns a bare event from process_audio_chunk and reports every partial through the sink from inside finalize(). It buffers the wire's frames up to the family's own preferred window rather than feeding whatever size the client's audio callback produced, and it does not call finish_stream at all when no audio arrived, because nemotron_asr throws "finalize requires streamed audio" and an empty transcript is the truthful answer to transcribing nothing. Three things the handler had to get right and one it cannot: - The audio contract. A live request carries no samples, but nemotron_asr's streaming prepare() throws without an audio contract, and build_preparation_request derives it from TaskRequest::audio_input, so that field is an EMPTY buffer holding only the rate and the channel count. - 16 kHz or a refusal. The families express their spans in their own 16 kHz feature domain whatever the input was, and live frames cannot be resampled on the way in the way a file can, so an 8 kHz session would return timestamps 2x off with a 200. core/backend hardcodes 16000 anyway. - A mid-stream Config is refused. backend.proto calls it a decoder reset, but deltas already on the wire cannot be retracted, so a reset would leave the final text contradicting the transcript the client assembled. Ignoring the message would hand a client that believes it reset the decoder a transcript that silently continues the audio it thought it discarded. - The stale-route identity check cannot run here: TranscriptLiveRequest carries no ModelIdentity in either arm of its oneof, so snapshot_for does not instantiate for it. snapshot_unchecked's comment now names that as a second legitimate class of caller and says the fix is a proto change. eou and eob stay false. They exist for cache-aware models that emit end-of-utterance and end-of-backchannel tokens; audio.cpp's StreamEvent has no equivalent signal, and a client uses eou to decide the speaker yielded the turn, so a guess inferred from silence cuts people off mid-sentence. The lane is held for the whole stream, which is as long as the user keeps talking: the streaming session is stateful and cached, so a concurrent run would interleave two callers' audio and corrupt both transcripts. Verified against nemotron_asr over a real connection with a 14 s WAV in 512-sample frames: ready first, 59 incremental deltas with no repeated prefix, concat(deltas) equal to final_result.text, word timestamps in nanoseconds, eou and eob false. citrinet_asr answers UNIMPLEMENTED naming the family and listing asr/offline. A config followed by a close returns an empty final_result rather than hanging, and a first message that is not a config is INVALID_ARGUMENT. Two concurrent streams both return the complete transcript. Two cleanups on lines Task 12 touched, folded in. The DtypeAllowList terminator is now asserted at compile time: the reported out-of-bounds read did not exist, the single entry does terminate, but the loops have no other bound and any edit that widened an entry would walk off the end. And the dtype guard now short-circuits on "is there a table entry" through a new predicate rather than on the emptiness of the description string, which would have skipped the check on an entry with an empty allow list, i.e. on precisely the entry that refuses every dtype. Assisted-by: Claude:claude-opus-5 [Claude Code] Signed-off-by: Ettore Di Giacinto <mudler@localai.io> * backend(audio-cpp): bound the lane a live stream can hold AudioTranscriptionLive holds the model's inference lane for the whole stream, which is correct (the streaming session is stateful and a concurrent run would interleave two callers' audio) and newly dangerous. Every other RPC holds the lane across compute, or across a write to a slow reader, and both of those terminate on their own. A live stream instead blocks in a client-driven read, and a peer that goes silent WITHOUT closing the stream never terminates anything: the lane stays taken and every other request against that model queues behind a client that stopped speaking. live_watchdog is a one-shot idle timer that ends the stream when no frame has arrived inside a window. It is standard library only, so it is unit tested without an engine. gRPC's synchronous Read has no timeout and cannot be given one, so the only way to unblock it is ServerContext::TryCancel, which decides the wire status itself: the client sees CANCELLED rather than the DEADLINE_EXCEEDED the handler returns, the reason is logged, and the lane coming back is the point. When it fires the read loop throws rather than reporting end-of-input, so the driver does not go on to finalize a decode nobody is waiting for. It is armed only after the lane is taken and disarmed as soon as the read side closes, and both ends matter. Arming earlier would cover acquire(), which legitimately blocks while another live stream runs, so a queued caller would be cancelled for waiting its turn. Disarming later would cover our own decode, where a window overrun is not a peer going quiet and cancelling would throw away the transcript the client is waiting for. The window is the new live_idle_timeout_ms option, 30 s by default, 0 meaning no limit. core/http/endpoints/openai/realtime.go drives a 300 ms ticker and feeds every tick that produced new audio while a turn is open, so 30 s of silence is a hundred ticks that delivered nothing. It is also longer than any pause a speaker takes mid-utterance, which is the case that must never be cut off, and backend.proto lets one stream span many utterances, so a client that pauses longer between them raises the option rather than discovering it. Two smaller corrections in the same handler: - check_can_serve now runs BEFORE the sample rate check. pkg/grpc/grpcerrors/errors.go degrades to the file path on UNIMPLEMENTED and on nothing else, so a live-incapable model asked at a wrong rate was answering INVALID_ARGUMENT and costing the caller its fallback. - a negative sample rate is refused instead of silently becoming 16000. Zero still means 16000, which is what the proto documents; -1 is malformed rather than absent and gets the same refusal every other bad rate gets. And one thing recorded rather than changed, at the handler: "live" here means incremental INPUT, not low latency, and with the pinned families it does not yet mean incremental OUTPUT either. nemotron_asr's process_audio_chunk only appends to its buffer, so its whole decode and every delta happen inside finalize(), after the client closes its send side. The policy-window buffering is inert for that family and matters only for vibevoice_asr and higgs_audio_stt. Verified on the wire with live_idle_timeout_ms:3000. A silent client acked at 371 ms and was cancelled at 3.371 s; a second live stream opened one second later received its ack 2.37 s in, i.e. at the instant the first was cancelled, and then transcribed successfully on the same cached session. Without the watchdog it would still be waiting. Re-ran the live transcription (ready first, 59 incremental deltas, concat equal to the final text, word timestamps in nanoseconds, eou and eob false), the citrinet refusal at both a right and a wrong rate (UNIMPLEMENTED either way now), and Task 12's AudioTranscriptionStream on nemotron_asr, which is unchanged. Mutation testing the watchdog found a weakness in its own test: the destructor test slept past the window inside the watched scope, so a destructor that DETACHED the thread instead of joining it passed unnoticed. The test now uses a window longer than the scope, which kills that mutant, and says why. Assisted-by: Claude:claude-opus-5 [Claude Code] Signed-off-by: Ettore Di Giacinto <mudler@localai.io> * backend(audio-cpp): refuse the unsupported RPCs with a reason AudioEncode, AudioDecode, AudioTransformStream, AudioToAudioStream and VoiceEmbed have no counterpart in audio.cpp's VoiceTaskKind. Each now returns UNIMPLEMENTED naming the loaded family, what that family does support, and the upstream limitation, instead of the generated base class's bare status. The reasons live in a table in capability_routing.cpp so they are data rather than literals copied into five handlers, and so a test can assert every one of them. The five claims this was planned against were re-read at the pinned upstream e800d435d130dc776baf6f3e6129bb62b1495c89, and one did not hold. "audio.cpp streams tts and asr only" is false: silero_vad advertises vad with RunMode::Streaming. The refusal stands on the narrower claim that survives, that no family advertises streaming for any task AudioTransform routes to, and a test asserts the refuted wording does not come back. VoiceEmbed is the one refusal whose request carries a ModelIdentity, so it runs the #10952 check before answering: a stale route must get NOT_FOUND and the router's sentinel, not "audio.cpp cannot embed speakers" about a model that is not loaded here. It cannot use snapshot_for, whose no-model branch would tell the caller to load a model when no model can help, so it takes the reference through snapshot_unchecked and checks identity itself. That function's comment now names three classes of caller instead of two. The two bidirectional surfaces refuse without reading their stream, verified with a client that writes a config and eight frames first and gets the status rather than hanging. Assisted-by: Claude:claude-opus-5 [Claude Code] Signed-off-by: Ettore Di Giacinto <mudler@localai.io> * backend(audio-cpp): correct the vevo2 clause, and assert the absences Review found a false clause in the AudioToAudioStream refusal. It said s2s is "offline voice conversion ... which converts one clip into another speaker's voice", which is true of miocodec and false of vevo2: vevo2's s2s route is `editing` and only `editing` (default_route_for_task and route_matches_task in src/models/vevo2/session.cpp), documented as "Edit source speech into new target text while using the target voice" and requiring --target-text, so it rewrites what was said. vevo2's voice conversion is its separate vc task. It now reads "offline clip-to-clip processing against a target voice, declared only by miocodec (voice conversion) and vevo2 (speech editing)", and a test asserts the miscast cannot come back. The conclusion is unchanged: neither family converses. That defect was undetectable on the wire, since vevo2 does not load here, which is the argument for upstream_absence_ctest.cpp. It links engine_runtime purely to interrogate make_default_registry() and asserts the five premises the refusal reasons rest on: no codec task kind, no family advertising spk, no streaming for sep/vc/svc/s2s, miocodec advertising exactly vc and s2s, and s2s advertised by exactly miocodec and vevo2. The last two are exact sets, so an addition fails here rather than leaving a message stale. A positive control proves the registry is populated and the query works before any absence is believed, and every assertion has a reproduced negative control. This turns an AUDIO_CPP_VERSION bump from "remember to re-read five prose paragraphs" into a test failure. unsupported_surface now switches over UnsupportedRpc with no default label, so -Wswitch reports a sixth enumerator added without a row at build time; the runtime bounds guard it replaces is deleted. The AudioTransformStream reason had a true premise and an overreaching conclusion: an offline sep family could be buffered into a stream, as other LocalAI backends do. It now says this backend declines to offer a buffered offline call in disguise, rather than implying impossibility. Assisted-by: Claude:claude-opus-5 [Claude Code] Signed-off-by: Ettore Di Giacinto <mudler@localai.io> * backend(audio-cpp): make the missing-switch-case diagnostic fatal unsupported_surface() switches UnsupportedRpc onto the table row that explains it, with no default label, so -Wswitch reports an enumerator nobody handled. As a warning that is not enough: adding a sixth enumerator and building the shipping target gives exit 0, a binary and one warning, and the trailing `return surfaces[0];` then answers the new RPC with AudioEncode's codec reason. That is a confident, specific and false statement about audio.cpp on the wire, on the one code path whose entire job is to be truthful about what this backend cannot do, and it is worse than the runtime fallback it replaced, which at least named itself as a bug in this file. capability_routing.cpp therefore joins loaded_model.cpp on the existing -Werror=switch pin, whose comment already made this argument for the engine enum. The comment now covers both files. The pin stays per-file rather than project-wide because upstream's own ace_step/vae_decoder.cpp has unhandled -Wswitch cases of its own. Verified: a sixth enumerator now fails `make grpc-server` with exit 2 and no binary; appending a 14th VoiceTaskKind upstream still fails loaded_model.cpp, so the two pins fire independently; both reverted clean. Assisted-by: Claude:claude-opus-5 [Claude Code] Signed-off-by: Ettore Di Giacinto <mudler@localai.io> * backend(audio-cpp): package the backend image Bundles the dependency closure for the from-scratch image, the dlopened ggml CPU-variant shared objects that ldd cannot see, and upstream's bundled silero_vad and marblenet_vad assets so VAD works with no download. The bundled loader sits in the package ROOT rather than at lib/ld.so. run.sh execs it, which makes /proc/self/exe name the loader, and this backend has two consumers of that path: ggml discovers the libggml-cpu-*.so by listing dirname(/proc/self/exe), and resolve_model_path expands bundled:<name> under the same directory. Rooting the loader makes the binary, the ggml objects and assets/ share the one directory all three resolution mechanisms agree on. llama-cpp's lib/ld.so layout would need assets/ moved into lib/ as well. The image builds against apt gRPC and protobuf, like Dockerfile.ds4 and unlike Dockerfile.privacy-filter. The from-source gRPC that install-base-deps.sh and the base-grpc-* images supply vendors protobuf 26, which pulls abseil into message_lite.h; with SPM_PROTOBUF_PROVIDER=package that collides with sentencepiece's vendored mini-abseil and every absl::internal reference becomes ambiguous. Noble's protobuf 3.21.12 predates the abseil dependency and is the pair every earlier verification of this backend ran against. Assisted-by: Claude:claude-opus-5 [Claude Code] Signed-off-by: Ettore Di Giacinto <mudler@localai.io> * backend(audio-cpp): exempt the driver libraries from the packaging gate package.sh already left libcuda.so* and libnvidia-* to the host when copying, because the driver has to match the kernel module on whatever host runs the image, but the validation gate had no matching exemption. With BUILD_TYPE=cublas ggml is static and links CUDA::cuda_driver, so grpc-server carries DT_NEEDED libcuda.so.1 and the gate would have rejected the very absence the copy loop created, failing every cublas build in CI. One regex now feeds both. Building a control for that found a second defect: ld.so --list refuses to trace an object with an unresolvable dependency at all, exiting 127 without emitting a per-library line, so the "=> not found" rule was dead code and no exemption could have applied to it. The gate now traces with LD_TRACE_LOADED_OBJECTS and LD_LIBRARY_PATH, which reports the missing name and exits 0, and which is also what run.sh does at run time. Adds a layout assertion so a future move of the loader into lib/ fails the build instead of shipping a package that resolves bundled: models into lib/assets and finds no ggml CPU backend, and records for Task 16 that the Darwin script must not be a straight copy of privacy-filter-darwin.sh, which never calls package.sh and would silently drop assets/. Assisted-by: Claude:claude-opus-5 [Claude Code] Signed-off-by: Ettore Di Giacinto <mudler@localai.io> * backend(audio-cpp): register the backend with CI and the gallery Adds the five Linux matrix entries (cpu amd64/arm64 sharing a tag-suffix so the manifest merge fires, cuda 12, cuda 13, vulkan), the path-filter case that keeps later PRs touching backend/cpp/audio-cpp/ from getting zero CI jobs, the bump-bot entry pointing at the AUDIO_CPP_VERSION pin in the backend Makefile, the gallery meta plus its -development variant and the image entries for every variant, and the Makefile docker-build wiring. The matrix entries carry base-image only, with no builder-base-image, unlike the llama-cpp and privacy-filter blocks they sit next to. The prebuilt quay.io/go-skynet/ci-cache:base-grpc-* images ship a from-source gRPC whose protobuf v26 depends on abseil, and this backend's sentencepiece is built with SPM_PROTOBUF_PROVIDER=package, so it sees real abseil's absl::lts_20240116:: internal alongside its own vendored plain absl::internal and every absl::internal:: reference becomes ambiguous. Building against base-grpc-amd64 fails at sentencepiece-static.dir/error.cc.o with "reference to 'internal' is ambiguous". Dockerfile.audio-cpp installs apt's gRPC/protobuf 3.21.12 itself, which is also the pair every unit and end-to-end run of this backend has been verified against, and the CUDA toolkit therefore has to come from base-image. No Darwin matrix entry and no metal gallery entries: the Metal build needs scripts/build/audio-cpp-darwin.sh, a backends/audio-cpp-darwin make target and a routing step in backend_build_darwin.yml, none of which exist yet, so an entry added now would be routed to build-darwin-go-backend and look for backend/go/audio-cpp/. The inferBackendPathDarwin case and the DARWIN_BESPOKE_BUILDERS membership are in place, inert, so that adding the entry later is a one-line change that cannot be claimed by the generic Go path. Assisted-by: Claude:claude-opus-5 [Claude Code] Signed-off-by: Ettore Di Giacinto <mudler@localai.io> * backend(audio-cpp): pin the CUDA architectures, drop the vulkan variant Upstream sets CUDA_ARCHITECTURES to `native` on the engine_runtime target whenever CMAKE_CUDA_ARCHITECTURES is unset at root scope, and docs/build/ linux.md says so outright. ggml's own default does not rescue it: it list(APPEND)s in the ggml subdirectory scope, which never reaches the root scope where the engine_runtime property is decided. No CI runner has a GPU for `native` to enumerate, so both cublas entries would have gone red on the very commit that first turns a CUDA build on. Pin the list in backend/cpp/audio-cpp/Makefile, selected by CUDA_MAJOR_VERSION, which Dockerfile.audio-cpp now forwards from the CI build-arg it was previously discarding. The values are copied from ggml's own version guards rather than invented, so engine_runtime and ggml compile for the same set: CUDA 12 keeps the Maxwell/Pascal/Volta virtual archs and stops at 120a-real, CUDA 13 drops them and adds 121a-real. The `a` suffix is used rather than `f` because the latter needs CMake 3.31.8 and Ubuntu Noble ships 3.28.3. Verified by driving CMake 3.28.3's own CUDA architecture validator over both lists, with 120f-virtual as the rejected control. Drop the vulkan matrix entry, its two gallery entries, the vulkan capability key on both metas and the Vulkan tag. Every other vulkan backend gets its Mesa ICD drivers from .docker/install-base-deps.sh, which package-gpu-libs.sh then bundles; Dockerfile.audio-cpp calls neither and installs only libvulkan-dev and glslc, so the image would ship a Vulkan loader that finds no GPU. No CI job runs a vulkan image against real hardware, so that would have passed green and failed in users' hands. BUILD_TYPE=vulkan stays supported for local builds. Also note on the cublas entries that cuda-major-version now selects the architecture list and that cuda-minor-version and the base-image tag encode the same toolkit, and correct the stale entry counts on matrixEntryKey. Assisted-by: Claude:claude-opus-5 [Claude Code] Signed-off-by: Ettore Di Giacinto <mudler@localai.io> * backend(audio-cpp): build for Darwin Metal Bespoke C++ Darwin path like ds4 and privacy-filter: an includeDarwin matrix entry, a backends/audio-cpp-darwin make target, a gated workflow step, and the metal image entries plus metal/metal-darwin-arm64 capability keys in the backend gallery. The build script deliberately does NOT reassemble the package the way privacy-filter-darwin.sh does. It runs the backend's own `make package` and copies the result, so the Darwin package keeps the root-level layout the Linux one has: grpc-server, run.sh, the ggml objects and assets/ in one directory, with lib/ for the dylib closure. Hand-assembling would drop assets/, and assets/ is what makes the bundled: model paths resolve with nothing downloaded. The dylib walk is a full transitive closure rather than the single level ds4 and llama-cpp do, because Homebrew's grpc++ pulls libgrpc, abseil, upb, cares and OpenSSL that grpc-server does not link itself, and a level-1 walk ships a package that only works on a machine that already has Homebrew grpc. Two fixes folded in, both in the backend Makefile: - an EMPTY CUDA_MAJOR_VERSION fell through to the CUDA 12 architecture list, which contains 120a-real and so needs nvcc >= 12.8. A local BUILD_TYPE=cublas build on a 12.0-12.7 host failed to compile where upstream's documented default (native) worked. EMPTY now maps to native, 12 and 13 keep their lists, and any other non-empty value is an error on cublas builds. CI always passes a major, so CI is unaffected. - the Darwin branch now points CMake at Homebrew's keg-only libomp. AppleClang ships no OpenMP runtime and nothing is symlinked into /opt/homebrew, so FindOpenMP finds neither the library nor the header, and audio.cpp calls find_package(OpenMP REQUIRED) whenever ENGINE_ENABLE_OPENMP is on. Without the hint the macOS build would have died at configure time. If the keg is absent the build disables OpenMP instead of failing. Assisted-by: Claude:claude-opus-5 [Claude Code] Signed-off-by: Ettore Di Giacinto <mudler@localai.io> * backend(audio-cpp): make the Darwin fallbacks loud and the rpath walk complete Review follow-up on the Darwin Metal build. The OpenMP fallback was silent. If brew --prefix libomp ever comes back empty, CI produced a green Metal package with 108 #pragma omp directives across ~30 files compiled out, and clang says nothing about an ignored omp pragma without -Wsource-uses-openmp, so the only trace was one absent flag inside a set -x cmake line. That regression would have been blamed on Metal. It now warns. The @rpath arm of the dylib walk had no live candidate when it was written, on the reasoning that a Metal build links ggml statically. The OpenMP fix in the same commit made libomp.dylib one, and whether Homebrew records it as an absolute opt path or as @rpath/libomp.dylib is not observable from Linux. The walk now expands @rpath, @loader_path and @executable_path against the object's own LC_RPATH entries, and only fails when nothing on disk answers, printing the rpath list with the error so a failure on a machine nobody can attach to explains itself. Also: ADDITIONAL_LIBS now go through the closure rather than a bare cp, so they are deduplicated and their own dependencies bundled; build/darwin/lib is created explicitly instead of relying on package.sh pre-creating it; the libomp probe uses nested ifneq rather than $(and ...), which needs GNU make 3.81 and would otherwise expand empty and take the OFF branch on an older make; and -DOpenMP_ROOT is quoted like its CUDA sibling. Verified with a Linux harness that runs the script verbatim against a stubbed otool: a level-2 transitive dep, an @rpath dep reachable only through LC_RPATH, and an ADDITIONAL_LIBS dep are all bundled, a dependency cycle terminates, system libraries are skipped, the packaged tree has assets/ at the root beside grpc-server with the dylibs in lib/, and both failure paths exit non-zero. Assisted-by: Claude:claude-opus-5 [Claude Code] Signed-off-by: Ettore Di Giacinto <mudler@localai.io> * backend(audio-cpp): make bundled: reachable from a model YAML resolve_model_path() tested the bundled: prefix on `candidate`, which prefers ModelFile and falls back to Model. LocalAI fills ModelFile by joining ModelPath onto the configured model string (pkg/model/loader.go, LoadModelWithFile), and only sets it from a managed artifact otherwise, so a model YAML saying `model: bundled:silero_vad` arrives as ModelFile "/models/bundled:silero_vad" and Model "bundled:silero_vad". The prefix therefore never matched through the normal load path: it matched only for a hand-written LoadModel call that left ModelFile empty, which is exactly how task 15 verified it, and every model YAML using the form failed with "model path does not exist: /models/bundled:silero_vad". Both fields are now checked, Model first, so the zero-download VAD path the package ships assets for is reachable the way it is documented. A caller that puts the form in ModelFile still works, so task 15's verification stands. Compiled clean; the runtime check could not run on this host, whose system libprotobuf/libre2 have gone missing (the pre-existing grpc-server binary no longer resolves its libraries either), so it wants a container run. Assisted-by: Claude:claude-opus-5 [Claude Code] Signed-off-by: Ettore Di Giacinto <mudler@localai.io> * backend(audio-cpp): advertise the backend and document its options Registers audio-cpp as preference-only in /backends/known: the family lives in GGUF metadata that an importer cannot read from a remote repo, and one repo hosts thirty families, so there is no honest auto-detect signal. Modality is a single string and the import form chips on a fixed key set, so it registers as tts with the other modalities named in the description rather than under an invented key the UI would bucket as "other". Adds a features page covering the option namespacing, the routing table per endpoint, the RPCs this backend declines and why, the bundled VAD path, the separation stem behaviour, and the family gotchas (supertonic needs the orig package; chatterbox advertises cloning and no plain tts; nemotron_asr defers its whole decode to finalize so live transcription emits nothing until the client half-closes, unlike higgs_audio_stt and voxtral_realtime). Every option name and family capability in it was read off the pinned upstream checkout. Assisted-by: Claude:claude-opus-5 [Claude Code] Signed-off-by: Ettore Di Giacinto <mudler@localai.io> * backend(audio-cpp): test resolve_model_path, and correct the family names The bundled: fix in 842443cd7 shipped without a test, which is how the bug got there: task 15 verified the form with a hand-written LoadModel that left ModelFile empty, and that is the one shape the server never produces. Four cases in streaming_driver_ctest, which already links loaded_model.cpp, pin the PRODUCTION shapes instead. The first fails against the pre-fix source (returns the joined /models/bundled:silero_vad); the other three are the branches the bundled: lookup now runs in front of and must fall through for. Three family names in the docs were the source directory rather than the registered family, on pages whose whole argument is that these names cannot be guessed: demucs is htdemucs (demucs/loader.cpp:22), roformer is mel_band_roformer (roformer/assets.h:15), and moss is TWO families, moss_tts_local and moss_tts_nano. The hyphenated ASR names are underscored to match, here and in the compatibility table. The supertonic dtype note claimed more than the evidence carries. The f16 abort is a local observation, identical through TTS and TTSStream; upstream's docs/gguf.md leaves the 16-bit column untested and records q8_0 as "No (unsupported weight dtype)", which says unusable rather than fatal. Both are still refused, because the allow list is what the family can run. Corrected in family_gate.h, family_gate.cpp and the docs together, since the docs inherited the wording from the code. The importers tripwire says in the file that it is a tripwire: it exercises no audio-cpp behaviour, and the registration assertion lives in backend_test.go. Assisted-by: Claude:claude-opus-5 [Claude Code] Signed-off-by: Ettore Di Giacinto <mudler@localai.io> * gallery: add audio.cpp models covering every served RPC One representative model per RPC group of the audio-cpp backend, plus the two bundled VAD models, which need no download at all because the assets ship inside the backend package. Every hash was computed with sha256sum on the downloaded file. Quantizations come from upstream's tested-status table in docs/gguf.md rather than a default of q8_0: supertonic ships the orig package (its q8_0 is recorded as an unsupported weight dtype and its f16 aborts in ggml_concat), and nemotron_asr and htdemucs ship f16 because their q8_0 builds are recorded with drift while 16-bit is a clean pass. Diarization and separation use the diarization and audio_transform usecases, not transcript: /v1/audio/diarization and /audio/transform filter the default model on FLAG_DIARIZATION and FLAG_AUDIO_TRANSFORM respectively, so a transcript flag would have hidden both models from their own endpoints. The forced aligner sets parameters.language, which the transcription endpoint uses as the fallback when no language form field is sent, because the family requires both a transcript and a language. All ten entries were run twice: once against the raw gRPC server, and once installed with local-ai models install and called through the HTTP endpoint. Assisted-by: Claude:claude-opus-5 [Claude Code] Signed-off-by: Ettore Di Giacinto <mudler@localai.io> * gallery: correct the audio.cpp entries' licenses Swept all ten entries against the real upstream named in audio.cpp's tools/model_manager.py rather than against the audio.cpp repo's own license. Three were wrong: supertonic apache-2.0 -> openrail weights come from mlx-community/supertonic-3-mlx, and both it and Supertone/supertonic are openrail citrinet apache-2.0 -> other pulled from NGC nvidia/nemo/stt_en_citrinet_256, governed by the NGC Terms of Use sortformer other -> cc-by-nc-4.0 nvidia/diar_sortformer_4spk-v1 is CC BY-NC 4.0, and the gallery already uses that exact string, so there is no reason to obscure a non-commercial bar The license field is one word, so citrinet and sortformer also gained a sentence saying why they are restricted. The other seven were confirmed correct against their sources. Also drops an unverified claim from the nemotron description. It said the model drives the realtime transcription session; that endpoint actually calls TranscribeStream, and the live RPC reaches LocalAI only through realtime_semantic_vad.go. Neither path was exercised here, so the description now states only the two calls that were. MarbleNet gains the NeMo upstream under urls: for parity with silero. No sha256, quantization, usecase or model choice changed. Assisted-by: Claude:claude-opus-5 [Claude Code] Signed-off-by: Ettore Di Giacinto <mudler@localai.io> * fix(audio-transform): bound sample_rate, keep same-named uploads apart Four defects the whole-branch review found on the Go side, plus two comment corrections. sample_rate is a disk-exhaustion hazard. The branch added the `form:` tag that makes the field bind for the first time, so the resample path went from dead to live, and utils.AudioResample interpolates the int straight into ffmpeg's -ar with no bound. Measured with ffmpeg 7: -ar 999999999 on a 0.01 s clip writes 20 MB and exits 0, which scales linearly to the reported 3.9 GB for one second, into a GeneratedContentDir nothing sweeps, and convertStems repeats it once per separation stem. Clamped to 8000..192000 in the handler, before the temp dir and before the model is touched, and rejected with a 400 outside it. The low end was reported as "a 0-byte file". It is not: -ar 1 writes a 78-byte header with no audio behind it, whose declared data size still claims 70 bytes, so go-audio parses it as a 35 SECOND file and a size check does not see it. The guard therefore compares the declared data chunk against the bytes actually on disk, and AudioResample now fails rather than returning a WAV carrying nothing. Both parts of a transform request land in one temp dir, and the raw copy was named only after the client's basename, so `-F audio=@mic/clip.wav -F reference=@loopback/clip.wav` wrote "raw-clip.wav" twice. Since AudioToWavPreservingShape hardlinks an already-PCM16 WAV rather than copying it, the reference part's os.Create truncated the inode audio.wav pointed at: mic and reference came out identical, which makes an echo canceller null everything and return near-silence with a 200. The raw copy now carries the form field name. audio-cpp had no BackendCapabilities entry, so VoiceCloningForModel returned nil before it ever consulted the model's tts.voice_cloning override and every `voice: "profile:<id>"` request was refused with a 400, on a backend that ships audio-cpp-chatterbox whose family serves cloning and not plain TTS. Registered with its RPCs, usecases and the reference-audio contract, and deliberately without the 16 kHz mono fold, which its separation families cannot survive. GetBackendCapability was exact-match only, so every pinned gallery variant read as an unknown backend: vulkan-localvqe lost the 16 kHz mono fold that used to be unconditional and started failing inside LocalVQE, and the usecase gate does not stand in for it because BuildFilteredFirstAvailableDefaultModel returns early once the client names a model. Lookup now falls back to the meta name by stripping the gallery's hardware prefix and release-channel suffix, exact match first so nothing can be shadowed. Same class as #10945. Also corrected: the AudioTransformRequest comment claimed echo's binder falls back to the field name, which it does not in either direction (bindData binds ONLY tagged fields and `continue`s otherwise; `model` arrives from setModelNameFromRequest's c.FormValue). And the stable_audio `src` heap corruption caveat now lives on ElevenLabsSoundGenerationRequest, where the Go developer who would add the field can see it, instead of only in C++. Assisted-by: Claude:claude-opus-5 [Claude Code] Signed-off-by: Ettore Di Giacinto <mudler@localai.io> * fix(audio-cpp): refuse a task pin the RPC cannot serve, and stop empty frames holding the lane The model's `task:` option is copied into the request shape by all nine handlers, which is correct, but resolve_route then replaced the RPC's candidate list with the pin WHOLESALE and never asked whether the pin was something that RPC routes to. One pin therefore bled across all nine surfaces, and because the family still supported the pinned task the result was a wrong 200 rather than an error. Reproduced live: nemotron with task:asr made Vad return 200 with zero segments after a full ASR decode, so 14 seconds of speech was reported as silence, and Diarize did the same; silero_vad with task:vad made AudioTranscription return 200 with empty text and four segments whose spans were VAD segments, which combined with response_format in {text,srt,vtt,lrc} building the body solely from Segments[].Text yields a well formed SRT of four timed EMPTY cues. It also contradicted the documented contract, that a family which cannot serve a request is refused rather than rerouted. A pin is now checked against the RPC's admissible task set before it is adopted, and the refusal names both the pin and the RPC. The set is derived from task_candidates with every shape flag set rather than restated, so a task added to an RPC's candidates cannot become inadmissible by omission. Every legitimate pin survives, and the test asserts all fifteen of them alongside the eight crossings that must not. The live watchdog was defeated by empty frames. idle.touch() ran on ANY message, before the has_audio and pcm.empty() filters, so a peer writing unset-oneof or zero-length frames faster than the window held the lane indefinitely while feeding the decoder nothing. There is one lane per model and one model per process, so that is a single client denying the whole backend, which is what the watchdog exists to prevent, and the thrown text already said "no audio frame arrived". The touch moved below the filters, which are now a named predicate so the distinction is testable rather than a call order nobody can see. Three comments corrected against measurement rather than reasoning: - CMakeLists claimed zero google::protobuf:: definitions remain in the executable. nm -C --defined-only reports 2515, and that is expected: they are generated code, sentencepiece::ModelProto's own _InternalParse among them. The claim that holds, and the one the ABI fix is actually about, is that no vendored protobuf RUNTIME is linked and ParseContext::ParseMessage is UNDEFINED in the executable, resolving to libprotobuf.so. - refuse_cloning_without_a_clip's "cannot misfire" paragraph had its reasoning backwards. Routing picks VoiceCloning as the FALLBACK when there is no clip, which is the case being caught; chatterbox, which ships in the gallery, advertises clon and no tts at all, so every voice-less request lands there. - audio_units read "2.1 min at 96 kHz" for index 11289602, which is 1.96 min. 2.1 min is 96 kHz's OWN first failure at 12288002. Both were remeasured and the note is now a per-rate table. Assisted-by: Claude:claude-opus-5 [Claude Code] Signed-off-by: Ettore Di Giacinto <mudler@localai.io> * build(audio-cpp): exclude the upstream checkout from the C++ gate, harden the darwin walk run-unit-tests.sh pruned */llama.cpp/* but not */audio.cpp/*. It is safe today only by luck: upstream's 44 tests all put "test" at the FRONT of the filename (17 test-*.cpp, 27 test_*.cpp, zero *_test.cpp), so the glob misses every one of them, and nothing enforces that. This gate runs on every PR for every backend and compiles each match as a standalone translation unit with nothing but nlohmann/json on the include path, so the day upstream adds or renames one test the gate goes red repo-wide on an Apache-2.0 file nobody here wrote. audio-cpp-darwin.sh now logs the raw otool -L output and the parsed LC_RPATH list unconditionally, before the walk. Both awk filters in that script assume a column layout nobody working on this can observe, since it runs only on the CI Mac, and a green first Darwin run proves nothing about the assumption: an awk that silently matched nothing yields an empty dependency list, which reads exactly like "no non-system dependencies" and packages happily. Both filters otherwise feed process substitutions, so their input never reached the log. It also lists every symlink in the package and fails on one that cannot resolve inside the image. A dangling link does not fail anything else here, because every assertion tests with -e, which follows links; it fails at dlopen on a user's Mac. Links are NOT banned outright, which the review suggested but which would break the libggml.dylib -> libggml.0.dylib chain the `cp -a` above exists to preserve. What is banned is a link that resolves on the build host and will not resolve in the image: a broken one, or an absolute one pointing outside the package. Assisted-by: Claude:claude-opus-5 [Claude Code] Signed-off-by: Ettore Di Giacinto <mudler@localai.io> * style(audio-cpp): drop em dashes from the audio-cpp capability entry Follow-up to a84b3c4b9, no behaviour change. Assisted-by: Claude:claude-opus-5 [Claude Code] Signed-off-by: Ettore Di Giacinto <mudler@localai.io> * fix(config): key the voice-cloning model rule on the resolved backend Making GetBackendCapability strip the gallery hardware prefix and release channel fixed pinned variants of /audio/transform, but VoiceCloningForModel kept keying its per-backend switch on the caller's spelling. A pinned name therefore resolved the capability by stripping and then missed every case in the switch, falling through to the permissive default: cuda12-vibevoice-cpp advertised voice cloning for the realtime 0.5B model, metal-coqui for tacotron2, cuda12-crispasr for a pure ASR model, cpu-qwen3-tts-cpp for CustomVoice. Each of those is a model that cannot clone, so /v1/audio/speech accepted a profile: voice it had to fail on inside the backend rather than rejecting it with a 400, and the UI advertised the capability too. resolveBackendCapability now returns the key the entry was found under, and callers that branch on backend identity use that key instead of the name they were handed. The exact-match-first order is unchanged, so a backend genuinely registered under a variant-looking name still keys on its own name. Signed-off-by: Ettore Di Giacinto <mudler@localai.io> Assisted-by: Claude:claude-opus-5 [Claude Code] * gallery(audio-cpp): declare audio_transform on the chatterbox entry Chatterbox advertises VoiceCloning AND VoiceConversion (src/models/chatterbox), and the entry's own description already said so, but known_usecases listed only tts. /audio/transform selects its default model by FLAG_AUDIO_TRANSFORM, so voice conversion was reachable only by naming the model explicitly and was invisible to every usecase-driven surface. It is the one audio.cpp task with a shipped gallery model and no way to find it. Verified against the real model rather than inferred from the capability list: AudioTransform with chatterbox-q8_0, speech as audio_path and a speaker clip as reference_path, returns a 5.08 s 24 kHz mono WAV at -25.5 dB mean and zero stems, which is the single-output shape voice conversion should have. The description now says which endpoint reaches that half and warns that installing this next to a source-separation model gives /audio/transform two candidates, so the model should be named rather than defaulted. Signed-off-by: Ettore Di Giacinto <mudler@localai.io> Assisted-by: Claude:claude-opus-5 [Claude Code] * gallery(audio-cpp): add voice-design and singing-voice-conversion entries Two of the three audio.cpp task kinds that had no gallery model now have one. Both were driven end to end against the real weights through the backend before being written, not inferred from the capability tables. audio-cpp-irodori-voicedesign covers vdes. TTS carrying `instructions` routes to the vdes task, so the voice is described in words rather than supplied as a clip. Verified: "a calm elderly woman speaking slowly with a warm, gentle tone" over an 8.76 s 48 kHz mono render at -16.8 dB mean, and a closed-loop citrinet pass recovers the sentence with the accent drift expected from a Japanese-first model read by an English recogniser. audio-cpp-seedvc-singing covers svc, and pins task:svc because nothing else can reach it. seed_vc advertises svc and ordinary voice conversion, no request signal means "this input is singing", and auto-routing resolves the tie to voice conversion every time. Verified with the pin: 5.04 s 44.1 kHz output whose closed-loop citrinet transcription is exact. s2s deliberately has no entry, and the reason is not effort. miocodec is the only upstream family whose speech-to-speech route needs no text, and it returned audio with correct duration and level but no recoverable speech in four independent attempts: the stale build, v2 q8_0, v2 orig (the variant upstream records as a clean Pass), both tasks, and matched 44.1 kHz inputs on both sides. vevo2's route refuses with "Vevo2 text/prosody route requires text_input or target_text", and session.cpp:897 fills target_text only from request.text_input, which AudioTransform has no field to carry. The same vevo2 weights convert voice correctly through the default route with an exact ASR round trip, so the model and the plumbing are both healthy; it is the s2s route specifically that this RPC cannot express. Signed-off-by: Ettore Di Giacinto <mudler@localai.io> Assisted-by: Claude:claude-opus-5 [Claude Code] * backend(audio-cpp): carry transform text through params, add the s2s entry AudioTransform is audio-in / audio-out and its proto message has no text field, but not every task it routes to is audio-only. vevo2's speech-to-speech route is a text and prosody route: session.cpp:897 fills refs.target_text from request.text_input and nowhere else, and the run refuses without one with "Vevo2 text/prosody route requires text_input or target_text". The params map is the only channel this RPC has that reaches the engine, so the text travels through it and apply_transform_text_input unpacks it after the params have been copied into task.options. Before this, s2s was not awkward to reach through /audio/transform, it was unreachable, and it was the last audio.cpp task kind with a real model and no way to get to it. target_text is canonical and text is its alias, the order vevo2's own option table declares them in, so a request setting both gets the canonical one rather than whichever the map happened to store first. An empty value falls through to the next candidate instead of ending the search. language rides along only when a text was found: on its own it conditions nothing, and manufacturing a text_input for it would route a plain separation request carrying a language hint through the text path. The keys are left in task.options rather than erased, because vevo2's loader advertises target_text as a request option and a family reading it there keeps working. Nine tests, all confirmed failing on behaviour against a stub that returned false before the implementation was written. Verified end to end afterwards: vevo2-q8_0 with task:s2s and params[text] returns a 5.12 s 24 kHz output whose closed-loop citrinet transcription is exact, and htdemucs separation with no text param still returns its four stems, with and without params[stem]. audio-cpp-vevo2-speech-to-speech ships that route. Every audio.cpp task kind with a loadable family now has a gallery entry; spk remains the only gap and has no family upstream at all. Signed-off-by: Ettore Di Giacinto <mudler@localai.io> Assisted-by: Claude:claude-opus-5 [Claude Code] * docs(audio-cpp): document params[text] and the pinned transform tasks The text channel and the two task pins are both invisible from the endpoint contract alone: nothing in the AudioTransform form tells a reader that a speech-to-speech model needs the line it is resynthesising, and nothing says that asking for singing voice conversion without task:svc silently gets plain voice conversion instead. Both are the kind of thing a user only discovers from a refusal or, worse, from output that looks right and is not. Signed-off-by: Ettore Di Giacinto <mudler@localai.io> Assisted-by: Claude:claude-opus-5 [Claude Code] * fix(utils): annotate the two G304 sites this branch introduced gosec flags os.Open on a variable path, and both new call sites in ffmpeg.go are its alerts on this PR. Neither is reachable by an outside caller: isPCM16Wav opens the exact path it is about to hand ffmpeg as input, which in the upload path is a server-created temp file named from path.Base of the client name so no traversal survives, and wavAudioBytes opens AudioResample's own dst, a name this package derives from src and has just had ffmpeg write. Annotated in the repo's existing style rather than restructured, with the reason spelled out, because a bare suppression is worth nothing to the next reader. The three other G304 sites in this file, in passthroughWAV and isTargetWav, predate the branch and are left untouched. Signed-off-by: Ettore Di Giacinto <mudler@localai.io> Assisted-by: Claude:claude-opus-5 [Claude Code] * fix(audio-cpp): build arm64 with gcc-14 for the armv9.2 SME variants The arm64 CPU image failed to build: cc1: error: invalid feature modifier 'sme' in '-march=armv9.2-a+dotprod+fp16+sve+i8mm+sve2+sme' ggml's CPU_ALL_VARIANTS table includes armv9.2 variants compiled with +sme, and Ubuntu Noble's default gcc-13 rejects that feature modifier. Every entry in the table has to compile even though a host only ever dlopens the one its own CPU supports, so a single unbuildable variant fails the whole image. gcc-14 accepts it, which is exactly the fix llama-cpp already carries in .docker/llama-cpp-compile.sh; this is the same problem reached by a different Dockerfile. Applied to every arm64 BUILD_TYPE rather than to the CPU one alone, and that differs from llama-cpp on purpose. llama-cpp needs it only for its pure-CPU image because its GPU builds run llama-cpp-fallback, which builds no variant table. This backend's Makefile turns ENGINE_ENABLE_CPU_ALL_VARIANTS on for every non-Darwin build, GPU included, so an arm64 GPU image would hit the identical error. The matrix has no arm64 GPU entry today, which is precisely why gating on an empty BUILD_TYPE would leave the trap armed for whoever adds the first one. Signed-off-by: Ettore Di Giacinto <mudler@localai.io> Assisted-by: Claude:claude-opus-5 [Claude Code] --------- Signed-off-by: Ettore Di Giacinto <mudler@localai.io> Co-authored-by: Ettore Di Giacinto <mudler@localai.io>	2026-07-30 12:11:56 +02:00
Richard Palethorpe	12d1f3a697	security(http): refuse redirects on outbound clients via hardened pkg/httpclient (#10087) ... LocalAI's outbound HTTP clients used Go's default redirect policy, which follows up to 10 redirects. On a cross-host redirect Go forwards custom request headers — including credential headers such as Anthropic's x-api-key — to the redirect target (Go strips Authorization, Cookie and WWW-Authenticate cross-host, but NOT arbitrary custom headers). An attacker able to elicit a redirect from an upstream (a hijacked or spoofed upstream, DNS trickery, or a malicious upstream_url) then harvests the operator's provider API key. This was first reported against the cloud-proxy / MITM PII path (GHSA-3mj3-57v2-4636); the same class affects every other outbound client. Rather than patch each call site, add pkg/httpclient as the one sanctioned constructor for outbound HTTP and route everything through it. pkg/httpclient: - New(...) refuses redirects, TLS 1.2 floor, no body deadline (streaming/SSE safe) - NewWithTimeout(d) simple request/response calls - WithFollowRedirects opt-in following that still strips credential headers on any cross-host hop; different scheme/host/port == different origin, guarding the curl CVE-2022-27774 port-confusion class - WithTransport(rt) keep a custom transport (IP-pin, HTTP/2, a credential-injecting RoundTripper) - HardenedTransport() base transport with the TLS floor + bounded setup - Harden(c) apply the policy to a library-supplied *http.Client - NoRedirect the CheckRedirect policy; wraps ErrRedirectBlocked Lint: a forbidigo rule flags http.DefaultClient and http.Get/Post/ PostForm/Head, pointing at pkg/httpclient (.golangci.yml, .agents/coding-style.md). forbidigo cannot match the &http.Client{} composite literal without also flagging legitimate *http.Client type references, so that form is enforced by review. Migrates every non-test outbound call site across core/, pkg/, cmd/, and the Go backend (backend/go/cloud-proxy). Credential-bearing and internal-RPC clients refuse redirects; download / CDN / registry clients use WithFollowRedirects so they keep working while stripping secrets cross-host. The only credential-bearing client that follows redirects is the gated-download path (pkg/downloader/uri.go), which strips the token on the cross-host hop to the CDN. Hardening this closes, in passing: - MCP remote-server bearer token leaking via a redirect (the RoundTripper re-injected Authorization on every hop) - agent multimedia/webhook clients leaking user-supplied auth headers - cors_proxy following redirects, bypassing its SSRF IP-pin - downloader's authorized read path leaking the token cross-host Fixes: GHSA-3mj3-57v2-4636 (cloud-proxy leaks operator provider API key (x-api-key) to attacker host on cross-host redirect) Reported-by: tonghuaroot Assisted-by: Claude:claude-opus-4-8 [Claude Code] Signed-off-by: Richard Palethorpe <io@richiejp.com>	2026-05-30 12:04:10 +02:00
TLoE419	fc2bd0986c	test(utils): cover path verification, sanitization, and unique naming (#9978) ... pkg/utils/path.go provides the security primitives for download paths (VerifyPath, InTrustedRoot) and the file-naming helpers used by every import flow (SanitizeFileName, GenerateUniqueFileName). None of them had test coverage, so a future regression in the traversal check or in the ".." stripping inside SanitizeFileName would land unnoticed. The new specs pin the lexical contract for each helper: - VerifyPath accepts strict descendants and inner traversal that stays inside the base, rejects "..", compound traversal, and the base path itself. An explicit spec documents that the check is purely lexical (filepath.Clean, not EvalSymlinks) so any future caller that needs symlink-aware defence knows to EvalSymlinks first. - InTrustedRoot rejects the trusted root and sibling directories, accepts deeply nested descendants. - SanitizeFileName covers the leading-directory and absolute-prefix paths plus the embedded ".." case ("foo..bar" -> "foobar") that the Clean+Base layer alone would leave intact. - GenerateUniqueFileName covers the no-collision, single-collision, walk-the-counter, and empty-extension cases using GinkgoT().TempDir() so the suite stays hermetic. Assisted-by: Claude:claude-opus-4-7 [Claude Code] Signed-off-by: TLoE419 <tloemizuchizu@gmail.com>	2026-05-29 10:40:08 +00:00
Richard Palethorpe	8d70855ea6	test: add Go + React UI coverage gates and fill test gaps (#9989) ... - Strict monotonic Go coverage gate (make test-coverage-check, 45% baseline) run in CI; fixes ginkgo dropping all-but-one coverprofile across multiple recursive roots, builds with -tags auth, and folds in the in-process tests/e2e suite via --coverpkg. - React UI e2e coverage (make test-ui-coverage: vite-plugin-istanbul + nyc, nix-provided Chromium) plus e2e specs for 6 previously-untested pages, and a UI coverage gate (make test-ui-coverage-check) with a small tolerance since e2e line coverage jitters ~0.5pp run-to-run. - pre-commit hook: lint + coverage on Go changes, Playwright e2e + UI coverage gate on react-ui changes; install with make install-hooks. - New Go handler tests (settings, branding), hermetic base64 download test. - fix(ui): model editor reads vram_display (snake_case), so the VRAM estimate renders again; covered by a regression test. Assisted-by: Claude:claude-opus-4-7 Signed-off-by: Richard Palethorpe <io@richiejp.com>	2026-05-26 22:06:10 +02:00
Rin	a7f6cc8956	[utils] Fail immediately on extraction errors (#9926) ... utils: fail immediately on extraction errors Setting ContinueOnError to false ensures that ExtractArchive does not leave the model or backend directory in an inconsistent state if a partial failure occurs. This improves robustness against malformed archives or unexpected I/O issues during installation. Signed-off-by: RinZ27 <222222878+RinZ27@users.noreply.github.com>	2026-05-21 19:00:33 +02:00
massy_o	8c785dbe4a	Validate archive member paths before extraction (#9820) ... Signed-off-by: massy-o <telitos000@gmail.com>	2026-05-15 11:12:13 +02:00
Richard Palethorpe	670259ce43	chore: Security hardening (#9719) ... * fix(http): close 0.0.0.0/[::] SSRF bypass in /api/cors-proxy The CORS proxy carried its own private-network blocklist (RFC 1918 + a handful of IPv6 ranges) instead of using the same classification as pkg/utils/urlfetch.go. The hand-rolled list missed 0.0.0.0/8 and ::/128, both of which Linux routes to localhost — so any user with FeatureMCP (default-on for new users) could reach LocalAI's own listener and any other service bound to 0.0.0.0:port via: GET /api/cors-proxy?url=http://0.0.0.0:8080/... GET /api/cors-proxy?url=http://[::]:8080/... Replace the custom check with utils.IsPublicIP (Go stdlib IsLoopback / IsLinkLocalUnicast / IsPrivate / IsUnspecified, plus IPv4-mapped IPv6 unmasking) and add an upfront hostname rejection for localhost, *.local, and the cloud metadata aliases so split-horizon DNS can't paper over the IP check. The IP-pinning DialContext is unchanged: the validated IP from the single resolution is reused for the connection, so DNS rebinding still cannot swap a public answer for a private one between validate and dial. Regression tests cover 0.0.0.0, 0.0.0.0:PORT, [::], ::ffff:127.0.0.1, ::ffff:10.0.0.1, file://, gopher://, ftp://, localhost, 127.0.0.1, 10.0.0.1, 169.254.169.254, metadata.google.internal. Assisted-by: Claude:claude-opus-4-7 [Claude Code] Signed-off-by: Richard Palethorpe <io@richiejp.com> * fix(downloader): verify SHA before promoting temp file to final path DownloadFileWithContext renamed the .partial file to its final name *before* checking the streamed SHA, so a hash mismatch returned an error but left the tampered file at filePath. Subsequent code that operated on filePath (a backend launcher, a YAML loader, a re-download that finds the file already present and skips) would consume the attacker-supplied bytes. Reorder: verify the streamed hash first, remove the .partial on mismatch, then rename. The streamed hash is computed during io.Copy so no second read is needed. While here, raise the empty-SHA case from a Debug log to a Warn so "this download had no integrity check" is visible at the default log level. Backend installs currently pass through with no digest; the warning makes that footprint observable without changing behaviour. Regression test asserts os.IsNotExist on the destination after a deliberate SHA mismatch. Assisted-by: Claude:claude-opus-4-7 [Claude Code] Signed-off-by: Richard Palethorpe <io@richiejp.com> * fix(auth): require email_verified for OIDC admin promotion extractOIDCUserInfo read the ID token's "email" claim but never inspected "email_verified". With LOCALAI_ADMIN_EMAIL set, an attacker who could register on the configured OIDC IdP under that email (some IdPs accept self-supplied unverified emails) inherited admin role: - first login: AssignRole(tx, email, adminEmail) → RoleAdmin - re-login: MaybePromote(db, user, adminEmail) → flip to RoleAdmin Add EmailVerified to oauthUserInfo, parse email_verified from the OIDC claims (default false on absence so an IdP that omits the claim cannot short-circuit the gate), and substitute "" for the role-decision email when verified=false via emailForRoleDecision. The user record still stores the unverified email for display. GitHub's path defaults EmailVerified=true: GitHub only returns a public profile email after verification, and fetchGitHubPrimaryEmail explicitly filters to Verified=true. Regression tests cover both the helper contract and integration with AssignRole, including the bootstrap "first user" branch that would otherwise mask the gate. Assisted-by: Claude:claude-opus-4-7 [Claude Code] Signed-off-by: Richard Palethorpe <io@richiejp.com> * feat(cli): refuse public bind when no auth backend is configured When neither an auth DB nor a static API key is set, the auth middleware passes every request through. That is fine for a developer laptop, a home LAN, or a Tailnet — the network itself is the trust boundary. It is not fine on a public IP, where every model install, settings change, and admin endpoint becomes reachable from the internet. Refuse to start in that exact configuration. Loopback, RFC 1918, RFC 4193 ULA, link-local, and RFC 6598 CGNAT (Tailscale's default range) all count as trusted; wildcard binds (`:port`, `0.0.0.0`, `[::]`) are accepted only when every host interface is in one of those ranges. Hostnames are resolved and treated as trusted only when every answer is. A new --allow-insecure-public-bind / LOCALAI_ALLOW_INSECURE_PUBLIC_BIND flag opts out for deployments that gate access externally (a reverse proxy enforcing auth, a mesh ACL, etc.). The error message lists this plus the three constructive alternatives (bind a private interface, enable --auth, set --api-keys). The interface enumeration goes through a package-level interfaceAddrsFn var so tests can simulate cloud-VM, home-LAN, Tailscale-only, and enumeration-failure topologies without poking at the real network stack. Assisted-by: Claude:claude-opus-4-7 [Claude Code] Signed-off-by: Richard Palethorpe <io@richiejp.com> * test(http): regression-test the localai_assistant admin gate ChatEndpoint already rejects metadata.localai_assistant=true from a non-admin caller, but the gate was open-coded inline with no direct test coverage. The chat route is FeatureChat-gated (default-on), and the assistant's in-process MCP server can install/delete models and edit configs — the wrong handler change would silently turn the LLM into a confused deputy. Extract the gate into requireAssistantAccess(c, authEnabled) and pin its behaviour: auth disabled is a no-op, unauthenticated is 403, RoleUser is 403, RoleAdmin and the synthetic legacy-key admin are admitted. No behaviour change in the production path. Assisted-by: Claude:claude-opus-4-7 [Claude Code] Signed-off-by: Richard Palethorpe <io@richiejp.com> * test(http): assert every API route is auth-classified The auth middleware classifies path prefixes (/api/, /v1/, /models/, etc.) as protected and treats anything else as a static-asset passthrough. A new endpoint shipped under a brand-new prefix — or a new path that simply isn't on the prefix allowlist — would be reachable anonymously. Walk every route registered by API() with auth enabled and a fresh in-memory database (no users, no keys), and assert each API-prefixed route returns 401 / 404 / 405 to an anonymous request. Public surfaces (/api/auth/*, /api/branding, /api/node/* token-authenticated routes, /healthz, branding asset server, generated-content server, static assets) are explicit allowlist entries with comments justifying them. Build-tagged 'auth' so it runs against the SQLite-backed auth DB (matches the existing auth suite). Assisted-by: Claude:claude-opus-4-7 [Claude Code] Signed-off-by: Richard Palethorpe <io@richiejp.com> * test(http): pin agent endpoint per-user isolation contract agents.go's getUserID / effectiveUserID / canImpersonateUser / wantsAllUsers helpers are the single trust boundary for cross-user access on agent, agent-jobs, collections, and skills routes. A regression there is the difference between "regular user reads their own data" and "regular user reads anyone's data via ?user_id=victim". Lock in the contract: - effectiveUserID ignores ?user_id= for unauthenticated and RoleUser - effectiveUserID honours it for RoleAdmin and ProviderAgentWorker - wantsAllUsers requires admin AND the literal "true" string - canImpersonateUser is admin OR agent-worker, never plain RoleUser No production change — this commit only adds tests. Assisted-by: Claude:claude-opus-4-7 [Claude Code] Signed-off-by: Richard Palethorpe <io@richiejp.com> * fix(downloader): drop redundant stat in removePartialFile The stat-then-remove pattern is a TOCTOU window and a wasted syscall — os.Remove already returns ErrNotExist for the missing-file case, so trust that and treat it as a no-op. Assisted-by: Claude:claude-opus-4-7 [Claude Code] Signed-off-by: Richard Palethorpe <io@richiejp.com> * fix(http): redact secrets from trace buffer and distribution-token logs The /api/traces buffer captured Authorization, Cookie, Set-Cookie, and API-key headers verbatim from every request when tracing was enabled. The endpoint is admin-only but the buffer is reachable via any heap-style introspection and the captured tokens otherwise outlive the request. Strip those header values at capture time. Body redaction is left to a follow-up — the prompts are usually the operator's own and JSON-walking is invasive. Distribution tokens were also logged in plaintext from core/explorer/discovery.go; logs forward to syslog/journald and outlive the token. Redact those to a short prefix/suffix instead. Assisted-by: Claude:claude-opus-4-7 [Claude Code] Signed-off-by: Richard Palethorpe <io@richiejp.com> * feat(auth): rate-limit OAuth callbacks separately from password endpoints The shared 5/min/IP limit on auth endpoints is right for password-style flows but too tight for OAuth callbacks: corporate SSO funnels many real users through one outbound IP and would trip the limit. Add a separate 60/min/IP limiter for /api/auth/{github,oidc}/callback so callbacks are bounded against floods without breaking shared-IP deployments. Assisted-by: Claude:claude-opus-4-7 [Claude Code] Signed-off-by: Richard Palethorpe <io@richiejp.com> * feat(gallery): verify backend tarball sha256 when set in gallery entry GalleryBackend gained an optional sha256 field; the install path now threads it through to the existing downloader hash-verify (which already streams, verifies, and rolls back on mismatch). Galleries without sha256 keep working; the empty-SHA path still emits the existing "downloading without integrity check" warning. Assisted-by: Claude:claude-opus-4-7 [Claude Code] Signed-off-by: Richard Palethorpe <io@richiejp.com> * test(http): pin CSRF coverage on multipart endpoints The CSRF middleware in app.go is global (e.Use) so it covers every multipart upload route — branding assets, fine-tune datasets, audio transforms, agent collections. Pin that contract: cross-site multipart POSTs are rejected; same-origin / same-site / API-key clients are not. Also pins the SameSite=Lax fallback path the skipper relies on when Sec-Fetch-Site is absent. Assisted-by: Claude:claude-opus-4-7 [Claude Code] Signed-off-by: Richard Palethorpe <io@richiejp.com> * feat(http): XSS hardening — CSP headers, safe href, base-href escape, SVG sandbox Several closely related XSS-prevention changes spanning the SPA shell, the React UI, and the branding asset server: - New SecurityHeaders middleware sets CSP, X-Content-Type-Options, X-Frame-Options, and Referrer-Policy on every response. The CSP keeps script-src permissive because the Vite bundle relies on inline + eval'd scripts; tightening that requires moving to a nonce-based policy. - The <base href> injection in the SPA shell escaped attacker-controllable Host / X-Forwarded-Host headers — a single quote in the host header broke out of the attribute. Pass through SecureBaseHref (html.EscapeString). - Three React sinks rendering untrusted content via dangerouslySetInnerHTML switch to text-node rendering with whiteSpace: pre-wrap: user message bodies in Chat.jsx and AgentChat.jsx, and the agent activity log in AgentChat.jsx. The hand-rolled escape on the agent user-message variant is replaced by the same plain-text path. - New safeHref util collapses non-allowlisted URI schemes (most importantly javascript:) to '#'. Applied to gallery `<a href={url}>` links in Models / Backends / Manage and to canvas artifact links — these come from gallery JSON or assistant tool calls and must be treated as untrusted. - The branding asset server attaches a sandbox CSP plus same-origin CORP to .svg responses. The React UI loads logos via <img>, but the same URL is also reachable via direct navigation; this prevents script execution if a hostile SVG slipped past upload validation. Assisted-by: Claude:claude-opus-4-7 [Claude Code] Signed-off-by: Richard Palethorpe <io@richiejp.com> * feat(http): bound HTTP server with read-header and idle timeouts A net/http server with no timeouts is trivially Slowloris-able and leaks idle keep-alive connections. Set ReadHeaderTimeout (30s) to plug the slow-headers attack and IdleTimeout (120s) to cap keep-alive sockets. ReadTimeout and WriteTimeout stay at 0 because request bodies can be multi-GB model uploads and SSE / chat completions stream for many minutes; operators who need tighter per-request bounds should terminate slow clients at a reverse proxy. Assisted-by: Claude:claude-opus-4-7 [Claude Code] Signed-off-by: Richard Palethorpe <io@richiejp.com> * test(auth): pin PUT /api/auth/profile field-tampering contract The handler uses an explicit local body struct (only name and avatar_url) plus a gorm Updates(map) with a column allowlist, so an attacker posting {"role":"admin","email":"...","password_hash":"..."} can't mass-assign those fields. Lock that down with a regression test so a future "let's just c.Bind(&user)" refactor breaks loudly. Assisted-by: Claude:claude-opus-4-7 [Claude Code] Signed-off-by: Richard Palethorpe <io@richiejp.com> * fix(services): strip directory components from multipart upload filenames UploadDataset and UploadToCollectionForUser took the raw multipart file.Filename and joined it into a destination path. The fine-tune upload was incidentally safe because of a UUID prefix that fused any leading '..' to a literal segment, but the protection is fragile. UploadToCollectionForUser handed the filename to a vendored backend without sanitising at all. Strip to filepath.Base at both boundaries and reject the trivial unsafe values ("", ".", "..", "/"). Assisted-by: Claude:claude-opus-4-7 [Claude Code] Signed-off-by: Richard Palethorpe <io@richiejp.com> * fix(react-ui): validate persisted MCP server entries on load localStorage is shared across same-origin pages; an XSS that lands once can poison persisted MCP server config to attempt header injection or to feed a non-http URL into the fetch path on subsequent loads. Validate every entry: types must match, URL must parse with http(s) scheme, header keys/values must be control-char-free. Drop anything that doesn't fit. Assisted-by: Claude:claude-opus-4-7 [Claude Code] Signed-off-by: Richard Palethorpe <io@richiejp.com> * fix(http): close X-Forwarded-Prefix open redirect The reverse-proxy support concatenated X-Forwarded-Prefix into the redirect target without validation, so a forged header value of "//evil.com" turned the SPA-shell redirect helper at /, /browse, and /browse/* into a 301 to //evil.com/app. The path-strip middleware had the same shape on its prefix-trailing-slash redirect. Add SafeForwardedPrefix at the middleware boundary: must start with a single '/', no protocol-relative '//' opener, no scheme, no backslash, no control characters. Apply at both consumers; misconfig trips the validator and the header is dropped. Assisted-by: Claude:claude-opus-4-7 [Claude Code] Signed-off-by: Richard Palethorpe <io@richiejp.com> * fix(http): refuse wildcard CORS when LOCALAI_CORS=true with empty allowlist When LOCALAI_CORS=true but LOCALAI_CORS_ALLOW_ORIGINS was empty, Echo's CORSWithConfig saw an empty allow-list and fell back to its default AllowOrigins=["*"]. An operator who flipped the strict-CORS feature flag without populating the list got the opposite of what they asked for. Echo never sets Allow-Credentials: true so this isn't directly exploitable (cookies aren't sent under wildcard CORS), but the misconfiguration trap is worth closing. Skip the registration and warn. Assisted-by: Claude:claude-opus-4-7 [Claude Code] Signed-off-by: Richard Palethorpe <io@richiejp.com> * feat(auth): zxcvbn password strength check with user-acknowledged override The previous policy was len < 8, which let through "Password1" and the rest of the credential-stuffing corpus. LocalAI has no second factor yet, so the bar needs to sit higher. Add ValidatePasswordStrength using github.com/timbutler/zxcvbn (an actively-maintained fork of the trustelem port; v1.0.4, April 2024): - min 12 chars, max 72 (bcrypt's truncation point) - reject NUL bytes (some bcrypt callers truncate at the first NUL) - require zxcvbn score >= 3 ("safely unguessable, ~10^8 guesses to break"); the hint list ["localai", "local-ai", "admin"] penalises passwords built from the app's own branding zxcvbn produces false positives sometimes (a strong-looking password that happens to match a dictionary word) and operators occasionally need to set a known-weak password (kiosk demos, CI rigs). Add an acknowledgement path: PasswordPolicy{AllowWeak: true} skips the entropy check while still enforcing the hard rules. The structured PasswordErrorResponse marks weak-password rejections as Overridable so the UI can surface a "use this anyway" checkbox. Wired through register, self-service password change, and admin password reset on both the server and the React UI. Assisted-by: Claude:claude-opus-4-7 [Claude Code] Signed-off-by: Richard Palethorpe <io@richiejp.com> * fix(react-ui): drop HTML5 minLength on new-password inputs minLength={12} on the new-password input let the browser block the form submit silently before any JS or network call ran. The browser focused the field, showed a brief native tooltip, and that was that — no toast, no fetch, no clue. Reproducible by typing fewer than 12 chars on the second password change of a session. The JS-level length check in handleSubmit already shows a toast and the server rejects with a structured error, so the HTML5 attribute was redundant defence anyway. Drop it. Assisted-by: Claude:claude-opus-4-7 [Claude Code] Signed-off-by: Richard Palethorpe <io@richiejp.com> * fix(react-ui): bundle Geist fonts locally instead of fetching from Google The new CSP correctly refused to apply styles from fonts.googleapis.com because style-src is locked to 'self' and 'unsafe-inline'. Loosening the CSP would defeat its purpose; the right fix is to stop reaching out to a third-party CDN for fonts on every page load. Add @fontsource-variable/geist and @fontsource-variable/geist-mono as npm deps and import them once at boot. Drop the <link rel="preconnect"> and external stylesheet from index.html. Side benefit: no third-party tracking via Referer / IP on every UI load, no failure mode when offline / behind a captive portal. Assisted-by: Claude:claude-opus-4-7 [Claude Code] Signed-off-by: Richard Palethorpe <io@richiejp.com> * fix(react-ui): refresh i18n strings to reflect 12-char password minimum The translations still said "at least 8 characters" everywhere — the client-side toast on a too-short password change told the user the wrong floor. Update tooShort and newPasswordPlaceholder / newPasswordDescription across all five locales (en, es, it, de, zh-CN) to match the real ValidatePasswordStrength rule. Assisted-by: Claude:claude-opus-4-7 [Claude Code] Signed-off-by: Richard Palethorpe <io@richiejp.com> * feat(auth): make password length-floor overridable like the entropy check The 12-char minimum was a policy choice, not a technical invariant — only "non-empty", "<= 72 bytes", and "no NUL bytes" are real bcrypt constraints. Treating length-12 as a hard rule was inconsistent with the entropy check (already overridable) and friction for use cases where the account is just a name on a session, not a security boundary (single-user kiosk, CI rig, lab demo). Restructure ValidatePasswordStrength: - Hard rules (always enforced): non-empty, <= MaxPasswordLength, no NUL byte - Policy rules (skipped when AllowWeak=true): length >= 12, zxcvbn score >= 3 PasswordError now marks password_too_short as Overridable too. The React forms generalised from `error_code === 'password_too_weak'` to `overridable === true`, and the JS-side preflight length checks were removed (server is source of truth, returns the same checkbox flow). Assisted-by: Claude:claude-opus-4-7 [Claude Code] Signed-off-by: Richard Palethorpe <io@richiejp.com> --------- Signed-off-by: Richard Palethorpe <io@richiejp.com>	2026-05-08 16:25:45 +02:00
Richard Palethorpe	13734ae9fa	feat: Add Sherpa ONNX backend for ASR and TTS (#8523) ... feat(backend): Add Sherpa ONNX backend and Omnilingual ASR Adds a new Go backend wrapping sherpa-onnx via purego (no cgo). Same approach as opus/stablediffusion-ggml/whisper — a thin C shim (csrc/shim.c + shim.h → libsherpa-shim.so) wraps the bits purego can't reach directly: nested struct config writes, result-struct field reads, and the streaming TTS callback trampoline. The Go side uses opaque uintptr handles and purego.NewCallback for the TTS callback. Supports: - VAD via sherpa-onnx's Silero VAD - Offline ASR: Whisper, Paraformer, SenseVoice, Omnilingual CTC - Online/streaming ASR: zipformer transducer with endpoint detection (AudioTranscriptionStream emits delta events during decode) - Offline TTS: VITS (LJS, etc.) - Streaming TTS: sherpa-onnx's callback API → PCM chunks on a channel, prefixed by a streaming WAV header Gallery entries: omnilingual-0.3b-ctc-q8-sherpa (1600-language offline ASR), streaming-zipformer-en-sherpa (low-latency streaming ASR), silero-vad-sherpa, vits-ljs-sherpa. E2E coverage: tests/e2e-backends for offline + streaming ASR, tests/e2e for the full realtime pipeline (VAD + STT + TTS). Assisted-by: claude-opus-4-7-1M [Claude Code] Signed-off-by: Richard Palethorpe <io@richiejp.com>	2026-04-24 14:40:06 +02:00
Ettore Di Giacinto	4906cbad04	feat: add biometrics UI (#9524) ... * feat(react-ui): add Face & Voice Recognition pages Expose the face and voice biometrics endpoints (/v1/face/*, /v1/voice/*) through the React UI. Each page has four tabs driving the six endpoints per modality: Analyze (demographics with bounding boxes / waveform segments), Compare (verify with a match gauge and live threshold slider), Enrollment (register / identify / forget with a top-K matches view), Embedding (raw vector inspector with sparkline + copy). MediaInput supports file upload plus live capture: webcam snap-to-canvas for face, MediaRecorder -> AudioContext -> 16-bit PCM mono WAV transcode for voice (libsndfile on the backend only handles WAV/FLAC/OGG natively). Sidebar gets a new Biometrics section feature-gated on face_recognition / voice_recognition; routes are wrapped in <RequireFeature>. No new dependencies -- Font Awesome icons picked from the Free set. Assisted-by: Claude:Opus 4.7 * fix(localai): accept data URI prefixes with codec/charset params Browser MediaRecorder produces data URIs like data:audio/webm;codecs=opus;base64,... so the pre-';base64,' section can carry multiple parameter segments. The `^data:([^;]+);base64,` regex in pkg/utils/base64.go and core/http/endpoints/localai/audio.go only matched exactly one segment, so recordings straight from the React UI's live-capture tab failed the strip and then tripped the base64 decoder on the leading 'data:' literal, surfacing as "invalid audio base64: illegal base64 data at input byte 4" Widened both regexes to `^data:[^,]+?;base64,` so any number of ';param=value' segments between the mime type and ';base64,' are tolerated. Added a regression test covering the MediaRecorder shape. Assisted-by: Claude:Opus 4.7 * fix(insightface): scope pack ONNX loading to known manifests LocalAI's gallery extracts buffalo_* zips flat into the models directory, which inevitably mixes with ONNX files from other backends (opencv face engine, MiniFASNet antispoof, WeSpeaker voice embedding) and older buffalo pack installs. Feeding those foreign files into insightface's model_zoo.get_model() blows up inside the router -- it assumes a 4-D NCHW input and indexes `input_shape[2]` on tensors that aren't shaped like a face model, raising IndexError mid-load and leaving the backend unusable. The router's dispatch isn't amenable to per-file try/except alone (first-file-wins picks det_10g.onnx from buffalo_l even when the user asked for buffalo_sc -- alphabetical order happens to favour the wrong pack). Instead, ship an explicit manifest of the upstream v0.7 pack contents and scope the glob to that when the requested pack is known. The manifest is small and stable; future packs can be added alongside or fall through to the tolerance loop, which also swallows any remaining IndexError / ValueError from foreign files with a clear `[insightface] skipped` stderr line for diagnostics. Assisted-by: Claude:Opus 4.7 * fix(speaker-recognition): extract FBank features for rank-3 ONNX encoders Pre-exported speaker-encoder ONNX graphs come in two shapes: rank-2 [batch, samples] -- some 3D-Speaker exports, take raw waveform directly. rank-3 [batch, frames, n_mels] -- WeSpeaker and most Kaldi- lineage encoders, expect pre-computed Kaldi FBank. OnnxDirectEngine unconditionally fed `audio.reshape(1, -1)` -- correct for rank-2, IndexError-on-input_shape[3] on rank-3, which surfaced to the UI as "Invalid rank for input: feats Got: 2 Expected: 3" Detect the input rank at session init and run Kaldi FBank (80-dim, 25ms/10ms frames, dither=0.0, per-utterance CMN) before the forward pass when rank>=3. All knobs are configurable via backend options for encoders that deviate from defaults. torchaudio.compliance.kaldi is already in the backend's requirements (SpeechBrain pulls torchaudio in), so no new dependency. Assisted-by: Claude:Opus 4.7 * fix(biometrics): isolate face and voice vector stores Face (ArcFace, 512-D) and voice (ECAPA-TDNN 192-D / WeSpeaker 256-D) biometric embeddings were colliding inside a single in-memory local-store instance. Enrolling one after the other failed with "Try to add key with length N when existing length is M" because local-store correctly refuses to mix dimensions in one keyspace. The registries were constructed with `storeName=""`, which in StoreBackend() is just a WithModel() call. But ModelLoader's cache is keyed on `modelID`, not `model` -- so both registries collapsed to the same `modelID=""` slot and reused the same backend process despite looking isolated on paper. Three complementary fixes: 1. application.go -- give each registry a distinct default namespace ("localai-face-biometrics" / "localai-voice-biometrics"). The comment claimed isolation, now it's actually enforced. 2. stores.go -- pass the storeName as both WithModelID and WithModel so the ModelLoader cache key separates namespaces and the loader spawns distinct processes. 3. local-store/store.go -- drop the Load() `opts.Model != ""` guard. It was there to prevent generic model-loading loops from picking up local-store by accident, but that auto-load path is being retired; the guard now just blocks legitimate namespace isolation. opts.Model is treated as a tag; the per-tuple process isolation upstream handles discrimination. Assisted-by: Claude:Opus 4.7 * fix(gallery): stale-file cleanup and upgrade-tmp directory safety Two related robustness fixes for backend install/upgrade: pkg/downloader/uri.go OCI downloads passed through if filepath.Ext(filePath) != "" ... filePath = filepath.Dir(filePath) which was intended to redirect file-shaped download targets into their parent directory for OCI extraction. The heuristic misfires on directory-shaped paths with a dot-suffix -- gallery.UpgradeBackend uses tmpPath = "<backendsPath>/<name>.upgrade-tmp" and Go's filepath.Ext treats ".upgrade-tmp" as an extension. The rewrite landed the extraction at "<backendsPath>/", which then **overwrote the real install** (backends/<name>/) with a flat-layout file and left a stray run.sh at the top level. The tmp dir itself stayed empty, so the validation step that checked "<tmpPath>/run.sh" predictably failed with "upgrade validation failed: run.sh not found in new backend" Every manual upgrade silently corrupted the backends tree this way. Guard the rewrite behind "target isn't already an existing directory" -- InstallBackend / UpgradeBackend both pre-create the target as a directory, so they get the correct behaviour; existing file-path callers with a genuine dot-extension still get the parent redirect. core/gallery/backends.go InstallBackend's MkdirAll returned ENOTDIR when something at the target path was already a file (legacy dev builds dropped golang backend binaries directly at `<backendsPath>/<name>` instead of nesting them under their own subdir). That permanently blocked reinstall and upgrade for anyone carrying that state, since every retry hit the same error. Detect a pre-existing non-directory, warn, and remove it before the MkdirAll so the fresh install can write the correct nested layout with metadata.json + run.sh. Assisted-by: Claude:Opus 4.7 * fix(galleryop): refresh upgrade cache after backend ops UpgradeChecker caches the last upgrade-check result and only refreshes on the 6-hour tick or after an auto-upgrade cycle. Manual upgrades (POST /api/backends/upgrade/:name) go through the async galleryop worker, which completes the upgrade correctly but never tells UpgradeChecker to re-check -- so /api/backends/upgrades continued to list a just-upgraded backend as upgradeable, indistinguishable from a failed upgrade, for up to six hours. Add an optional `OnBackendOpCompleted func()` hook on GalleryService that fires after every successful install / upgrade / delete on the backend channel (async, so a slow callback doesn't stall the queue). startup.go wires it to UpgradeChecker.TriggerCheck after both services exist. Result: the upgrade banner clears within milliseconds of the worker finishing. Assisted-by: Claude:Opus 4.7 * build: prepend GOPATH/bin to PATH for protogen-go install-go-tools runs `go install` for protoc-gen-go and protoc-gen-go-grpc, which writes them into `go env GOPATH`/bin. That directory isn't on every dev's PATH, and protoc resolves its code-gen plugins via PATH, so the immediately-following protoc invocation fails with "protoc-gen-go: program not found" which in turn blocks `make build` and any `make backends/%` target that depends on build. Prepend `go env GOPATH`/bin to PATH for the protoc invocation so the freshly-installed plugins are found without requiring a shell-profile change. Assisted-by: Claude:Opus 4.7 * refactor(ui-api): non-blocking backend upgrade handler with opcache POST /api/backends/upgrade/:name used to send the ManagementOp directly onto the unbuffered BackendGalleryChannel, which blocked the HTTP request whenever the galleryop worker was busy with a prior operation. The op also didn't show up in /api/operations, so the Backends UI couldn't reflect upgrade progress on the affected row. Register the op in opcache immediately, wrap it in a cancellable context, store the cancellation function on the GalleryService, and push onto the channel from a goroutine so the handler returns right away. Response gains a `jobID` field and a `message` string so clients have a consistent handle regardless of whether the op is queued or running. Pairs with the OnBackendOpCompleted hook added in the galleryop commit — together the UI sees the upgrade start, watches progress via /api/operations, and drops the "upgradeable" flag the moment the worker finishes. Assisted-by: Claude:Opus 4.7	2026-04-24 08:50:34 +02:00
Ettore Di Giacinto	59108fbe32	feat: add distributed mode (#9124) ... * feat: add distributed mode (experimental) Signed-off-by: Ettore Di Giacinto <mudler@localai.io> * fix data races, mutexes, transactions Signed-off-by: Ettore Di Giacinto <mudler@localai.io> * refactorings Signed-off-by: Ettore Di Giacinto <mudler@localai.io> * fixups Signed-off-by: Ettore Di Giacinto <mudler@localai.io> * fix events and tool stream in agent chat Signed-off-by: Ettore Di Giacinto <mudler@localai.io> * use ginkgo Signed-off-by: Ettore Di Giacinto <mudler@localai.io> * refactoring and consolidation Signed-off-by: Ettore Di Giacinto <mudler@localai.io> * refactoring and consolidation Signed-off-by: Ettore Di Giacinto <mudler@localai.io> * refactoring and consolidation Signed-off-by: Ettore Di Giacinto <mudler@localai.io> * refactoring and consolidation Signed-off-by: Ettore Di Giacinto <mudler@localai.io> * refactoring and consolidation Signed-off-by: Ettore Di Giacinto <mudler@localai.io> * refactoring and consolidation Signed-off-by: Ettore Di Giacinto <mudler@localai.io> * refactoring and consolidation Signed-off-by: Ettore Di Giacinto <mudler@localai.io> * refactoring and consolidation Signed-off-by: Ettore Di Giacinto <mudler@localai.io> * fix(cron): compute correctly time boundaries avoiding re-triggering Signed-off-by: Ettore Di Giacinto <mudler@localai.io> * enhancements, refactorings Signed-off-by: Ettore Di Giacinto <mudler@localai.io> * do not flood of healthy checks Signed-off-by: Ettore Di Giacinto <mudler@localai.io> * do not list obvious backends as text backends Signed-off-by: Ettore Di Giacinto <mudler@localai.io> * tests fixups Signed-off-by: Ettore Di Giacinto <mudler@localai.io> * refactoring and consolidation Signed-off-by: Ettore Di Giacinto <mudler@localai.io> * Drop redundant healthcheck Signed-off-by: Ettore Di Giacinto <mudler@localai.io> * enhancements, refactorings Signed-off-by: Ettore Di Giacinto <mudler@localai.io> --------- Signed-off-by: Ettore Di Giacinto <mudler@localai.io>	2026-03-30 00:47:27 +02:00
Copilot	3ac7301f31	Add sample_rate support to TTS API via post-processing resampling (#8650) ... * Initial plan * Add TTS sample_rate support via AudioResample post-processing Co-authored-by: mudler <2420543+mudler@users.noreply.github.com> --------- Co-authored-by: copilot-swe-agent[bot] <198982749+Copilot@users.noreply.github.com> Co-authored-by: mudler <2420543+mudler@users.noreply.github.com>	2026-02-25 16:36:27 +01:00
Kolega.dev	780877d1d0	security: validate URLs to prevent SSRF in content fetching endpoints (#8476) ... User-supplied URLs passed to GetContentURIAsBase64() and downloadFile() were fetched without validation, allowing SSRF attacks against internal services. Added URL validation that blocks private IPs, loopback, link-local, and cloud metadata endpoints before fetching. Co-authored-by: kolega.dev <faizan@kolega.ai>	2026-02-10 15:14:14 +01:00
Ettore Di Giacinto	c37785b78c	chore(refactor): move logging to common package based on slog (#7668) ... Signed-off-by: Ettore Di Giacinto <mudler@localai.io>	2025-12-21 19:33:13 +01:00
Ettore Di Giacinto	949e5b9be8	feat(rfdetr): add object detection API (#5923) ... Signed-off-by: Ettore Di Giacinto <mudler@localai.io>	2025-07-27 22:02:51 +02:00
Ettore Di Giacinto	73ecb7f90b	chore: drop assistants endpoint (#5926) ... Signed-off-by: Ettore Di Giacinto <mudler@localai.io>	2025-07-27 21:06:09 +02:00
Ettore Di Giacinto	05bf2493a5	fix: do not pass by environ to ffmpeg (#5871) ... Signed-off-by: Ettore Di Giacinto <mudler@localai.io>	2025-07-21 14:35:33 +02:00
Ettore Di Giacinto	1cc4525f15	fix: adapt test to error changes ... Signed-off-by: Ettore Di Giacinto <mudler@localai.io>	2025-05-30 17:43:59 +02:00
Ettore Di Giacinto	45c58752e5	feat(ui): add audio upload button in chat view (#5526) ... Signed-off-by: Ettore Di Giacinto <mudler@localai.io>	2025-05-30 16:47:31 +02:00
Richard Palethorpe	bf6426aef2	feat: Realtime API support reboot (#5392) ... * feat(realtime): Initial Realtime API implementation Signed-off-by: Ettore Di Giacinto <mudler@localai.io> * chore: go mod tidy Signed-off-by: Richard Palethorpe <io@richiejp.com> * feat: Implement transcription only mode for realtime API Reduce the scope of the real time API for the initial realease and make transcription only mode functional. Signed-off-by: Richard Palethorpe <io@richiejp.com> * chore(build): Build backends on a separate layer to speed up core only changes Signed-off-by: Richard Palethorpe <io@richiejp.com> --------- Signed-off-by: Ettore Di Giacinto <mudler@localai.io> Signed-off-by: Richard Palethorpe <io@richiejp.com> Co-authored-by: Ettore Di Giacinto <mudler@localai.io>	2025-05-25 22:25:05 +02:00
Arnaud A	65c3df392c	feat(tts): Implement naive response_format for tts endpoint (#4035) ... Signed-off-by: n-Arno <arnaud.alcabas@gmail.com>	2024-11-02 19:13:35 +00:00
Ettore Di Giacinto	fbb9facda4	feat(api): allow to pass videos to backends (#3601) ... This prepares the API to receive videos as well for video understanding. It works similarly to images, where the request should be in the form: { "type": "video_url", "video_url": { "url": "url or base64 data" } } Signed-off-by: Ettore Di Giacinto <mudler@localai.io>	2024-09-19 11:21:59 +02:00
Dave	c2804c42fe	fix: untangle pkg/grpc and core/schema for Transcription (#3419) ... untangle pkg/grpc and core/schema in Transcribe Signed-off-by: Dave Lee <dave@gray101.com>	2024-09-02 15:48:53 +02:00
Dave	81ae92f017	feat: elevenlabs sound-generation api (#3355) ... * initial version of elevenlabs compatible soundgeneration api and cli command Signed-off-by: Dave Lee <dave@gray101.com> * minor cleanup Signed-off-by: Dave Lee <dave@gray101.com> * restore TTS, add test Signed-off-by: Dave Lee <dave@gray101.com> * remove stray s Signed-off-by: Dave Lee <dave@gray101.com> * fix Signed-off-by: Dave Lee <dave@gray101.com> --------- Signed-off-by: Dave Lee <dave@gray101.com> Signed-off-by: Ettore Di Giacinto <mudler@users.noreply.github.com> Co-authored-by: Ettore Di Giacinto <mudler@users.noreply.github.com>	2024-08-24 00:20:28 +00:00
Ettore Di Giacinto	2a839e1432	fix(gallery): do not attempt to delete duplicate files (#3031) ... Signed-off-by: Ettore Di Giacinto <mudler@localai.io>	2024-07-28 10:27:56 +02:00
Ettore Di Giacinto	a181dd0ebc	refactor: gallery inconsistencies (#2647) ... * refactor(gallery): move under core/ Signed-off-by: Ettore Di Giacinto <mudler@localai.io> * fix(unarchive): do not allow symlinks Signed-off-by: Ettore Di Giacinto <mudler@localai.io> --------- Signed-off-by: Ettore Di Giacinto <mudler@localai.io>	2024-06-24 17:32:12 +02:00
Dave	12513ebae0	rf: centralize base64 image handling (#2595) ... contains simple fixes to warnings and errors, removes a broken / outdated test, runs go mod tidy, and as the actual change, centralizes base64 image handling Signed-off-by: Dave Lee <dave@gray101.com>	2024-06-24 08:34:36 +02:00
Sertaç Özercan	5866fc8ded	chore: fix go.mod module (#2635) ... Signed-off-by: Sertac Ozercan <sozercan@gmail.com>	2024-06-23 08:24:36 +00:00
Dave	d072835796	feat:OpaqueErrors to hide error information (#2486) ... * adds a new configuration option to hide all error message information from http requests --------- Signed-off-by: Dave Lee <dave@gray101.com>	2024-06-05 08:45:24 +02:00
Ettore Di Giacinto	fdb45153fe	feat(llama.cpp): Totally decentralized, private, distributed, p2p inference (#2343) ... * feat(llama.cpp): Enable decentralized, distributed inference As https://github.com/mudler/LocalAI/pull/2324 introduced distributed inferencing thanks to @rgerganov implementation in https://github.com/ggerganov/llama.cpp/pull/6829 in upstream llama.cpp, now it is possible to distribute the workload to remote llama.cpp gRPC server. This changeset now uses mudler/edgevpn to establish a secure, distributed network between the nodes using a shared token. The token is generated automatically when starting the server with the `--p2p` flag, and can be used by starting the workers with `local-ai worker p2p-llama-cpp-rpc` by passing the token via environment variable (TOKEN) or with args (--token). As per how mudler/edgevpn works, a network is established between the server and the workers with dht and mdns discovery protocols, the llama.cpp rpc server is automatically started and exposed to the underlying p2p network so the API server can connect on. When the HTTP server is started, it will discover the workers in the network and automatically create the port-forwards to the service locally. Then llama.cpp is configured to use the services. This feature is behind the "p2p" GO_FLAGS Signed-off-by: Ettore Di Giacinto <mudler@localai.io> * go mod tidy Signed-off-by: Ettore Di Giacinto <mudler@localai.io> * ci: add p2p tag Signed-off-by: Ettore Di Giacinto <mudler@localai.io> * better message Signed-off-by: Ettore Di Giacinto <mudler@localai.io> --------- Signed-off-by: Ettore Di Giacinto <mudler@localai.io>	2024-05-20 19:17:59 +02:00
Dave	c4f958e11b	refactor(application): introduce application global state (#2072) ... * start breaking up the giant channel refactor now that it's better understood - easier to merge bites Signed-off-by: Dave Lee <dave@gray101.com> * add concurrency and base64 back in, along with new base64 tests. Signed-off-by: Dave Lee <dave@gray101.com> * Automatic rename of whisper.go's Result to TranscriptResult Signed-off-by: Dave Lee <dave@gray101.com> * remove pkg/concurrency - significant changes coming in split 2 Signed-off-by: Dave Lee <dave@gray101.com> * fix comments Signed-off-by: Dave Lee <dave@gray101.com> * add list_model service as another low-risk service to get it out of the way Signed-off-by: Dave Lee <dave@gray101.com> * split backend config loader into seperate file from the actual config struct. No changes yet, just reduce cognative load with smaller files of logical blocks Signed-off-by: Dave Lee <dave@gray101.com> * rename state.go ==> application.go Signed-off-by: Dave Lee <dave@gray101.com> * fix lost import? Signed-off-by: Dave Lee <dave@gray101.com> --------- Signed-off-by: Dave Lee <dave@gray101.com>	2024-04-29 17:42:37 +00:00
Dave	c8dd8e5ef4	fix: reduce chmod permissions for created files and directories (#2137) ... quiet more security scanner issues: pass one of chmod restriction to remove group and other permissions Signed-off-by: Dave Lee <dave@gray101.com>	2024-04-26 00:47:06 +02:00
Ettore Di Giacinto	27ec84827c	refactor(template): isolate and add tests (#2069) ... * refactor(template): isolate and add tests Signed-off-by: Ettore Di Giacinto <mudler@localai.io> --------- Signed-off-by: Ettore Di Giacinto <mudler@localai.io> Signed-off-by: Dave <dave@gray101.com> Co-authored-by: Dave <dave@gray101.com>	2024-04-19 02:40:18 +00:00
Ettore Di Giacinto	af9e5a2d05	Revert #1963 (#2056) ... * Revert "fix(fncall): fix regression introduced in #1963 (#2048)" This reverts commit 6b06d4e0af. * Revert "fix: action-tmate back to upstream, dead code removal (#2038)" This reverts commit fdec8a9d00. * Revert "feat(grpc): return consumed token count and update response accordingly (#2035)" This reverts commit e843d7df0e. * Revert "refactor: backend/service split, channel-based llm flow (#1963)" This reverts commit eed5706994. * feat(grpc): return consumed token count and update response accordingly Fixes: #1920 Signed-off-by: Ettore Di Giacinto <mudler@localai.io> --------- Signed-off-by: Ettore Di Giacinto <mudler@localai.io>	2024-04-17 23:33:49 +02:00
Dave	eed5706994	refactor: backend/service split, channel-based llm flow (#1963) ... Refactor: channel based llm flow and services split --------- Signed-off-by: Dave Lee <dave@gray101.com>	2024-04-13 09:45:34 +02:00
cryptk	b85dad0286	feat: first pass at improving logging (#1956) ... Signed-off-by: Chris Jowett <421501+cryptk@users.noreply.github.com>	2024-04-04 09:24:22 +02:00
Steven Christou	2d7913b3be	feat(assistant): Assistant and AssistantFiles api (#1803) ... * Initial implementation of assistants api * Move load/save configs to utils * Save assistant and assistantfiles config to disk. * Add tsets for assistant api * Fix models path spelling mistake. * Remove personal go.mod information --------- Co-authored-by: Ettore Di Giacinto <mudler@users.noreply.github.com>	2024-03-26 18:54:35 +01:00
Steven Christou	01205fd4c0	Initial implementation of upload files api. (#1703) ... * Initial implementation of upload files api. * Move sanitize method to utils. * Save uploaded data to uploads folder. * Avoid loop if we do not have a purpose. * Minor cleanup of api and fix bug where deleting duplicate filename cause error. * Revert defer of saving config * Moved creation of directory to startup. * Make file names unique when storing on disk. * Add test for files api. * Update dependencies.	2024-02-18 10:12:02 +00:00
Ettore Di Giacinto	09e5d9007b	feat: embedded model configurations, add popular model examples, refactoring (#1532) ... * move downloader out * separate startup functions for preloading configuration files * docs: add popular model examples Signed-off-by: Ettore Di Giacinto <mudler@localai.io> * shorteners * Add llava * Add mistral-openorca * Better link to build section * docs: update * fixup * Drop code dups * Minor fixups * Apply suggestions from code review Signed-off-by: Ettore Di Giacinto <mudler@users.noreply.github.com> * ci: try to cache gRPC build during tests Signed-off-by: Ettore Di Giacinto <mudler@localai.io> * ci: do not build all images for tests, just necessary * ci: cache gRPC also in release pipeline * fixes * Update model_preload_test.go Signed-off-by: Ettore Di Giacinto <mudler@users.noreply.github.com> --------- Signed-off-by: Ettore Di Giacinto <mudler@localai.io> Signed-off-by: Ettore Di Giacinto <mudler@users.noreply.github.com>	2024-01-05 23:16:33 +01:00
Ettore Di Giacinto	db926896bd	Revert "[Refactor]: Core/API Split" (#1550) ... Revert "[Refactor]: Core/API Split (#1506)" This reverts commit ab7b4d5ee9.	2024-01-05 18:04:46 +01:00
Dave	ab7b4d5ee9	[Refactor]: Core/API Split (#1506) ... Refactors api folder to core, creates firm split between backend code and api frontend.	2024-01-05 15:34:56 +01:00
Ettore Di Giacinto	66fa4f1767	feat: share models by url (#1522) ... * feat: allow to pass by models via args * expose it also as an env/arg * docs: enhancements to build/requirements * do not display status always * print download status * not all mesages are debug	2024-01-01 10:31:03 +01:00
Ettore Di Giacinto	a95bb0521d	fix(download): correctly check for not found error (#1514)	2023-12-30 15:36:46 +01:00
l	f7621b2c6c	feat: partial download (#1486) ... * add .partial download * fix Stat check * review partial download	2023-12-24 19:39:33 +01:00
Ettore Di Giacinto	1fc3a375df	feat: inline templates and accept URLs in models (#1452) ... * feat: Allow inline templates * feat: Allow to specify url in model config files Signed-off-by: Ettore Di Giacinto <mudler@users.noreply.github.com> * feat: support 'huggingface://' format * style: reuse-code from gallery --------- Signed-off-by: Ettore Di Giacinto <mudler@users.noreply.github.com>	2023-12-18 18:58:44 +01:00
Dave	005f289632	feat: Model Gallery Endpoint Refactor / Mutable Galleries Endpoints (#991) ... refactor for model gallery endpoints - bundle up resources into a struct, make galleries mutable with some crud endpoints. This is groundwork required for making efficient use of the new scraper - while that PR isn't _quite_ ready yet, the goal is to have more, individually smaller gallery files. Therefore, rather than requiring a full localai service restart, these new endpoints have been added to make life easier. - Adds endpoints to add, list and remove model galleries at runtime - Adds these endpoints to the Insomnia config - Minor fix: loading file urls follows symbolic links now	2023-09-02 09:00:44 +02:00
Ettore Di Giacinto	acd829a7a0	fix: do not break on newlines on function returns (#864) ... Signed-off-by: Ettore Di Giacinto <mudler@localai.io>	2023-08-04 21:46:36 +02:00
Dave	5ce0f216cf	Fix: Model Gallery Downloads (#835)	2023-07-30 09:47:22 +02:00
Ettore Di Giacinto	94916749c5	feat: add external grpc and model autoloading	2023-07-20 22:10:12 +02:00
Ettore Di Giacinto	78f3c3da48	refactor: consolidate usage of GetURI (#674) ... Signed-off-by: mudler <mudler@localai.io>	2023-06-26 12:25:38 +02:00
Ettore Di Giacinto	60db5957d3	Gallery repository (#663) ... Signed-off-by: mudler <mudler@localai.io>	2023-06-24 08:18:17 +02:00