- Require reports_sales grant on postUnsuspend; return 403 on denial
- Reject unsuspend of non-SUSPENDED sales; skip silently on invalid state
- Move clear_all() after validation so an invalid sale_id no longer wipes
the active in-progress cart
- Null-guard get_sale_status() on missing row instead of fatal property
access; widen return type to ?int
- Fix getSaleType null-coalescing — CI4 session default only fires when
key is unset, not when value is null
- Rename get_sale_type → getSaleType, sale_id → saleId (PSR-12 camelCase)
- Extract SaleFixtureTrait with createSale()/createSuspendedSale(); add
regression coverage for auth denial, status gating, and cart preservation
Fixes an issue in Barcode_lib.php where $barcode was enclosed in single quotes, preventing string interpolation and rendering the literal string "$barcode" on the item barcode generation page instead of the barcode graphic.
Changes Made :
Refactored the string assignment in app/Libraries/Barcode_lib.php to properly concatenate $barcode.
How to Test:
1. Open Items in OSPOS.
2. Select any item and click Generate Barcodes.
3. Verify that the rendered barcode image displays correctly rather than showing literal text.
fix(barcode): escape payload fields to prevent XSS; PSR-12 refactor
- Apply `esc()` to name, ID, item number, category, and company name in `Barcode_lib` payloads
- Remove redundant `urldecode()` in `Item_kitsController` to prevent triple decoding
- Rename variables and methods to camelCase across barcode, item_kits, and tests
- Add type hint for `$layoutType` parameter in `manageDisplayLayout`
- Add/update unit tests covering escaping and HTTP response assertions
Signed-off-by: objecttothis <17935339+objecttothis@users.noreply.github.com>
fix(sales): gate per-record endpoints behind reports_sales grant (REDACTED)
Cashiers holding only the base `sales` grant could reach per-sale endpoints
(getRow, getEdit, postSave, getReceipt, getInvoice, getSendPdf, getSendReceipt)
that require `reports_sales`. getManage() enforced this at the list level, but
individual endpoints did not re-check. Regression tests added.
Auth:
- Introduce `IsLoggedIn` filter to centralize login checks across controllers
- Replace custom `AccessDeniedRedirectException` with built-in `RedirectException`
Employees:
- Add `DISALLOW_PASSWORD_CHANGE` and `DISALLOW_GRANT_CHANGE` env vars to restrict
credential and permission changes in locked-down environments
- Extract `hasGrantsChanged()` to streamline `postSave`
Refactor:
- Rename snake_case variables to camelCase in Sales, Items, and Employees
controllers for PSR-12 compliance
- Use explicit `db_connect()` for transaction clarity in Items controller
Fixes:
- SMTP config entries fall back to defaults via null coalescing
- Migration uses `DROP FOREIGN KEY` instead of `DROP CONSTRAINT`
- Password hash upgrade only sets session on successful `hash_version` update
- Correct lang key for unknown error in Module model
Language:
- Translate `error_grant_change_disallowed` / `error_password_change_disallowed`
across all 44 supported locales with => alignment matching en reference
- Fix "cannot be deleted" messages and misc typos across ~15 language files
Tests:
- Bootstrap seeder only once in ItemsCsvImportTest; close connection after
- Restore `DISALLOW_GRANT_CHANGE` in teardown to prevent side effects
- Use `uniqid()` for test user data to avoid collisions
Signed-off-by: 17935339+objecttothis@users.noreply.github.com
* refactor: standardize function and variable names to camelCase and improve naming consistency across files
* refactor(config): remove spaces around `=` in configuration files for improved consistency and formatting as is required by .env formatting rules.
* refactor(security): extract `.env` key management logic into reusable `writeEnvKey` helper, add throttle key provisioning logic, and streamline encryption key updates
* fix(migration): improve error handling in CI3 to CI4 encryption data migration
- Secure `up` and `convertCI3EncryptedData` methods with detailed exception handling for script execution and data saving.
* fix(migration): ensure empty string is correctly handled in CI3 to CI4 encryption data conversion
* refactor(security): enhance `.env` management with durable writes, better locking, and helper abstraction
- Update `writeEnvKey` to return a success flag and handle file locks robustly.
- Introduce `atomicWriteFile` for atomic writes to prevent partial file updates.
- Add `applyEnvKeyReplacement` to streamline `.env` key insertion and updates.
- Improve throttle key provisioning with validation and runtime persistence safeguards.
* refactor(security): implement dedicated `.env` file locking for robust and cross-platform safe write operations
- Add `lockEnvFile` and `unlockEnvFile` helpers to manage `.env` mutex files.
- Refactor `.env` write logic to use lock helpers, improving reliability and preventing race conditions.
- Enhance `atomicWriteFile` for better handling of file overwrites on Windows and POSIX systems.
* fix(migration): improve encryption error handling during CI3 to CI4 data conversion
- Add conditional checks for `checkEncryption` to prevent failed key persistence.
- Introduce `abortEncryptionConversion` for cleanup on failure.
- Update `writeEnvKey` to handle and return errors gracefully.
* refactor(security): improve `atomicWriteFile` for better file locking and cross-platform durability
- Replace `uniqid` with `bin2hex(random_bytes())` for more secure temp file naming.
- Add explicit file permissions and locking for safe concurrent writes.
- Enhance error handling to ensure atomicity on both Windows and POSIX systems.
* Add env temp files to gitignore so they don't get tracked.
---------
Signed-off-by: objecttothis <17935339+objecttothis@users.noreply.github.com>
* fix(login): skip auth validation on new install to allow migration
On fresh installs with no DB version, login validation would fail
before migrations could run. Check MY_Migration::getCurrentVersion()
and bypass credential check when no version exists.
Signed-off-by: Travis Garrison <travis@chiraqbookstore.com>
* fix(login): distinguish DB unavailable from empty install
`getCurrentVersion()` previously returned `int` with 0 used for both
\"empty database\" and \"DB connection failure\". This conflated two
distinct states, causing login to skip auth when DB was unreachable.
Changes:
- Return type widened to `?int`: null = DB unavailable, 0 = confirmed
empty DB (new install), positive int = migrated
- Login controller now returns 503 on null (DB error) before checking
isNewInstall
- isNewInstall gate now uses `=== 0` instead of falsy check
Signed-off-by: Travis Garrison <travis@chiraqbookstore.com>
* fix(login): return 503 JSON response when DB connection unavailable
Extract getCurrentVersion() before building data array to distinguish
null (connection failure) from 0 (new install). Return early with JSON
503 when DB is unreachable instead of rendering broken view.
Update return type hint to include ResponseInterface.
Signed-off-by: Travis Garrison <travis@chiraqbookstore.com>
---------
Signed-off-by: Travis Garrison <travis@chiraqbookstore.com>
Co-authored-by: Travis Garrison <travis@chiraqbookstore.com>
Co-authored-by: jekkos <jekkos@users.noreply.github.com>
* Add `reference_code` to sale payment queries and group by statements
Signed-off-by: Travis Garrison <travis@chiraqbookstore.com>
* Refactor `Sales` controller to improve payment handling readability and replace snake_case with camelCase variables
Signed-off-by: Travis Garrison <travis@chiraqbookstore.com>
* Add missing translations for `Sales` language file and include new keys like `must_enter_rrn` and `reference_code`
Signed-off-by: Travis Garrison <travis@chiraqbookstore.com>
* Refactor `Sales` payment handling to use camelCase and extend `addPayment` with `referenceCode` support
Signed-off-by: Travis Garrison <travis@chiraqbookstore.com>
* Refactor `Sales` models, controllers, and libraries to adopt camelCase naming conventions and improve readability
Signed-off-by: Travis Garrison <travis@chiraqbookstore.com>
* Add translations and updates for `must_enter_reference_code` and `reference_code` across language files and update `Sales` controller to replace `must_enter_rrn` with the new key
Signed-off-by: Travis Garrison <travis@chiraqbookstore.com>
* feat(sales): add reference code input and payment type helper
- Add `get_reference_code_payment_types()` to locale_helper as single
source of truth for card-requiring payment types
- Add reference code row to register view, shown/hidden via JS based
on selected payment type
- Fix payment type dropdown width to 100% for consistent layout
- Add min-width to payment buttons and right-padding to button group
Signed-off-by: Travis Garrison <travis@chiraqbookstore.com>
* feat(config): add payment reference code length configuration
- Add payment_reference_code_min and payment_reference_code_max fields
to Config controller save logic
- Add translation keys for reference code length limits across all
language files (min/max label + section header)
- Align array key formatting in Config controller for readability
Signed-off-by: Travis Garrison <travis@chiraqbookstore.com>
* style(lang): normalize string delimiters to single quotes across all language files
Convert double-quoted array keys and values to single quotes in all
app/Language/*/Config.php and app/Language/*/Sales.php variants.
No translation content changed — formatting only.
Also add Localization section to AGENTS.md documenting language file
conventions for new keys and fallback behavior.
Signed-off-by: Travis Garrison <travis@chiraqbookstore.com>
* feat(lang): add payment reference code length translations
Add localized strings for payment_reference_code_length_limits,
payment_reference_code_length_max_label, and
payment_reference_code_length_min_label across all supported locales.
Signed-off-by: Travis Garrison <travis@chiraqbookstore.com>
* test(config,sales): add payment reference code min/max validation tests
- Add baseLocalePayload() helper in ConfigTest for postSaveLocale tests
- Add testSaveLocale_AcceptsValidReferenceCodeMinMax and related boundary tests
- Add Sale_libPaymentTest for payment reference code validation in Sale_lib
Signed-off-by: Travis Garrison <travis@chiraqbookstore.com>
* fix(sales): add type-specific validation for amount_tendered
Gift card payments use amount_tendered as giftcard number (integer);
cash/other payments require decimal_locale format. Apply correct
validation rule per payment type instead of generic required.
Signed-off-by: Travis Garrison <travis@chiraqbookstore.com>
* fix(lang): replace self-closing </br> with <br> in all locales
Signed-off-by: Travis Garrison <travis@chiraqbookstore.com>
* fix(sales): use configurable precision in discount comparison
Replace hardcoded precision 2 with totals_decimals() when comparing
discount against item total via bccomp/bcmul, so discount validation
respects the configured decimal precision setting.
Signed-off-by: Travis Garrison <travis@chiraqbookstore.com>
* fix(lang): correct Azerbaijani translations in Config.php
Replace placeholder/mismatched strings with accurate translations:
- email_mailpath, email_smtp_pass, invoice_email_message
- number_locale_invalid/required, receipt_template
- reward_configuration, right, tax_decimals, theme
Signed-off-by: Travis Garrison <travis@chiraqbookstore.com>
* feat(sales): add reference code support to payment edit flow
- Add reference_code field to new payment row in sale edit form
- Persist reference_code on insert in Sale model
- Validate reference_code_new in Sales controller using configurable min/max length rules
Signed-off-by: Travis Garrison <travis@chiraqbookstore.com>
* feat(lang): add Georgian (ka) language stubs for Config and Sales
Signed-off-by: Travis Garrison <travis@chiraqbookstore.com>
* Match the fallback maximum reference_code length to the maximum of the field in the db
Signed-off-by: Travis Garrison <travis@chiraqbookstore.com>
* Bug fixes
- Add validation of UI settings to prevent overridden values from being passed.
- Correct maximum value in JS for payment_reference_code maximum length to 40.
- Fix bug causing copy_entire_sale() to incorrectly copy the reference code and cash_adjustment
Signed-off-by: Travis Garrison <travis@chiraqbookstore.com>
---------
Signed-off-by: Travis Garrison <travis@chiraqbookstore.com>
Co-authored-by: Travis Garrison <travis@chiraqbookstore.com>
basename() returns string and database column values are strings,
but get_latest_migration() and get_current_version() declare int
return types. PHP 8.0+ enforces strict return types and no longer
silently coerces strings to int, causing a TypeError on fresh
installs.
Fixes#4559
Co-authored-by: Ollama <ollama@steganos.dev>
* fix: Catch mysqli_sql_exception in DB fallback handlers for fresh Docker installs
On a fresh Docker install with an empty database, the ospos_sessions
table doesn't exist yet. The CSRF filter triggers session initialization
before the login/migration page can be reached.
The existing code in Session.php, OSPOS.php, and MY_Migration.php
catches DatabaseException, but the MySQLi driver throws
mysqli_sql_exception (which extends RuntimeException, not
DatabaseException) when the table doesn't exist. This causes an
unhandled exception resulting in HTTP 500.
Fix: Change all three catch blocks from to
so that mysqli_sql_exception and any other unexpected
database errors are caught, allowing the app to fall back gracefully:
- Session.php: Falls back to FileHandler so sessions work without DB
- OSPOS.php: Falls back to empty settings so config loads work
- MY_Migration.php: Falls back to version 0 / false so the migration
check passes gracefully
This allows the login page with migration UI to be served on first
access, so the initial schema migration can run.
Fixes#4524
---------
Co-authored-by: Ollama <ollama@steganos.dev>
* fix: Add missing $img_tag variable in Sales::getSendPdf()
The receipt_email.php view expects $img_tag but getSendPdf() wasn't passing it.
This caused 'Undefined variable $img_tag' error when sending receipt emails.
Closes#4514
* refactor: Extract img_tag building into helper method
Refactored duplicate img_tag building code into _build_img_tag helper method.
Both getSendPdf and getSendReceipt now use this shared method.
* refactor: Move logo-related methods to Email_lib
Moved buildLogoImgTag and getLogoMimeType methods to Email_lib library
where they logically belong alongside email-related functionality.
This removes duplicate code and centralizes email-related helpers.
Sales controller now uses email_lib->buildLogoImgTag() and
email_lib->getLogoMimeType() instead of private methods.
* fix: Address CodeRabbit review comments
- buildLogoImgTag now uses getLogoMimeType for actual MIME type instead of hardcoding image/png
- getLogoMimeType returns empty string instead of false for consistency
- Consolidated logo path/exists check logic between both methods
---------
Co-authored-by: Ollama <ollama@steganos.dev>
- Merge Config and Core File Changes 4.6.3 > 4.6.4
- Merge Config and Core File Changes 4.6.4 > 4.7.0
- Added app\Config\WorkerMode.php
- Merge Config and Core File Changes Not previously merged
- Added app\Config\Hostnames.php
- Corrected incorrect CSS property used in invoice.php view.
- Corrected unknown CSS properties used in register.php view.
- Used shorthand CSS in debug.css
- Corrected indentation in barcode_sheet.php view.
- Corrected indentation in footer.php view.
- Corrected indentation in invoice_email.php view.
- Replaced obsolete attributes with CSS style attributes in barcode_sheet.php
- Replaced obsolete attribute in error_exception.php
- Replaced obsolete attribute in invoice_email.php
- Replaced obsolete attribute in quote_email.php
- Replaced obsolete attributes in work_order_email.php
- Fixed indentation in system_info.php
- Replaced <strong> tag outside <p> tags, which isn't allowed, with style attributes.
- Simplified js return logic and indentation fixes in tax_categories.php
- Simplified js return logic in tax_codes.php
- Simplified js return logic in tax_jurisdictions.php
- Removed unnecessary labels in manage views.
- Rewrite JavaScript function and PHP to be more readable in bar.php, hbar.php, line.php and pie.php
- Added type declarations, return types and an import to app\Config\Services
- Updated Attribute.php parameter type
- Updated Receiving_lib.php parameter type
- Updated Receivings.php parameter types and updated PHPdocs
- Updated tabular_helper.php parameter types and updated PHPdocs
- Added type declarations and corrected PHPdocs in url_helper.php
- Added return types to functions
- Revert $objectSrc value in ContentSecurityPolicy.php
- Correct return type in Customer->get_stats()
- Correct return type in Item->get_info_by_id_or_number()
- Correct misspelling in border-spacing
- Added missing css style semicolons
- Resolve operator precedence ambiguity.
- Resolve column mismatch.
- Added missing escaping in view.
- Updated requirement for PHP 8.2
- Resolve unresolved conflicts
- Added PHP 8.2 requirement to the README.md
- Fixed bugs in display of UI
- Fixed duplicated `>` in app\Views\Expenses\manage.php
- Removed excess whitespace at the end of some lines in table_filter_persistence.php
- Added missing `>` in app\Views\Expenses\manage.php
- Corrected grammar in PHPdoc in table_filter_persistence.php
- Remove bug causing `\` to be injected into the new giftcard value
- Fix bug causing DROPDOWN Attribute Values to not save correctly
- Added check for null in $normalizedItemId
- Removing < PHP 8.2 from linting and tests
- Update Linter to not include PHP 8.2 and 8.1
- Remove PHP 8.1 unit test cycle.
- Update Bug Report Template
- Update Composer files for CodeIgniter 4.7.2
- Updated INSTALL.md to reflect changes.
---------
Signed-off-by: objec <objecttothis@gmail.com>
- Remove incorrect %C mapping (was mapping century to full year)
- Add special handling for %C (century), %c (datetime), %n (newline), %t (tab), %x (date)
- Add %h mapping (same as %b for abbreviated month)
- Tighten edge-case test assertions to use assertSame/assertMatchesRegularExpression
- Add tests for new directives: %C, %c, %n, %t, %x, %h
- Fixed bug where render() was not passing caller-supplied to
generate(), causing ad-hoc tokens to be ignored
- Added %F (yyyy-MM-dd) and %D (MM/dd/yy) composite date formats to
the IntlDateFormatter pattern map
- Added test coverage for composite date format directives (%F, %D, %T, %R)
- Replaced deprecated strftime() with IntlDateFormatter
- Added proper handling for edge cases:
- Strings with '%' not in date format (e.g., 'Discount: 50%')
- Invalid date formats (e.g., '%-%-%', '%Y-%q-%bad')
- Very long strings
- Added comprehensive unit tests for Token_lib
- All date format specifiers now mapped to IntlDateFormatter patterns
- Add whitelist validation for invoice_type to prevent path traversal and LFI
- Validate invoice_type against allowed values in Sale_lib
- Sanitize invoice_type input in Config controller before saving
- Default to 'invoice' template for invalid types
Security: Prevents arbitrary file inclusion via user-controlled invoice_type config
Complete Content-Type application/json fix for all AJAX responses
- Add missing return statements to all ->response->setJSON() calls
- Fix Items.php method calls from JSON() to setJSON()
- Convert echo statements to proper JSON responses
- Ensure consistent Content-Type headers across all controllers
- Fix 46+ instances across 12 controller files
- Change Config.php methods to : ResponseInterface (all return setJSON only):
- postSaveRewards(), postSaveBarcode(), postSaveReceipt()
- postSaveInvoice(), postRemoveLogo()
- Update PHPDoc @return tags
- Change Receivings.php _reload() to : string (only returns view)
- Change Receivings.php methods to : string (all return _reload()):
- getIndex(), postSelectSupplier(), postChangeMode(), postAdd()
- postEditItem(), getDeleteItem(), getRemoveSupplier()
- postComplete(), postRequisitionComplete(), getReceipt(), postCancelReceiving()
- Change postSave() to : ResponseInterface (returns setJSON)
- Update all PHPDoc @return tags
Fix XSS vulnerabilities in sales templates, login, and config pages
This commit addresses 5 XSS vulnerabilities by adding proper escaping
to all user-controlled configuration values in HTML contexts.
Fixed Files:
- app/Views/sales/invoice.php: Escaped company_logo (URL context) and company (HTML)
- app/Views/sales/work_order.php: Escaped company_logo (URL context)
- app/Views/sales/receipt_email.php: Added file path validation and escaping for logo
- app/Views/login.php: Escaped all config values in title, logo src, and alt
- app/Views/configs/info_config.php: Escaped company_logo (URL context)
Security Impact:
- Prevents stored XSS attacks if configuration is compromised
- Defense-in-depth principle applied to administrative interfaces
- Follows OWASP best practices for output encoding
Testing:
- Verified no script execution with XSS payloads in config values
- Confirmed proper escaping in HTML, URL, and file contexts
- All templates render correctly with valid configuration
Severity: High (4 files), Medium-High (1 file)
CVSS Score: ~6.1
CWE: CWE-79 (Improper Neutralization of Input During Web Page Generation)
Fix critical password validation bypass and add unit tests
This commit addresses a critical security vulnerability where the password
minimum length check was performed on the HASHED password (always 60
characters for bcrypt) instead of the actual password before hashing.
Vulnerability Details:
- Original code: strlen($employee_data['password']) >= 8
- This compared the hash length (always 60) instead of raw password
- Impact: Users could set 1-character passwords like "a"
- Severity: Critical (enables brute force attacks on weak passwords)
- CVE-like issue: CWE-307 (Improper Restriction of Excessive Authentication Attempts)
Fix Applied:
- Validate password length BEFORE hashing
- Clear error message when password is too short
- Added unit tests to verify minimum length enforcement
- Regression test to prevent future vulnerability re-introduction
Test Coverage:
- testPasswordMinLength_Rejects7Characters: Verify 7 chars rejected
- testPasswordMinLength_Accepts8Characters: Verify 8 chars accepted
- testPasswordMinLength_RejectsEmptyString: Verify empty rejected
- testPasswordMinLength_RejectsWhitespaceOnly: Verify whitespace rejected
- testPasswordMinLength_AcceptsSpecialCharacters: Verify special chars OK
- testPasswordMinLength_RejectsPreviousBehavior: Regression test for bug
Files Modified:
- app/Controllers/Home.php: Fixed password validation logic
- tests/Controllers/HomeTest.php: Added comprehensive unit tests
Security Impact:
- Enforces 8-character minimum password policy
- Prevents extremely weak passwords that facilitate brute-force attacks
- Critical for credential security and user account protection
Breaking Changes:
- Users with passwords < 8 characters will need to reset their password
- This is the intended security improvement
Severity: Critical
CVSS Score: ~7.5
CWE: CWE-305 (Authentication Bypass by Primary Weakness), CWE-307
Add GitHub Actions workflow to run PHPUnit tests
Move business logic from views to controllers for better separation of concerns
- Move logo URL computation from info_config view to Config::getIndex()
- Move image base64 encoding from receipt_email view to Sales controller
- Improves separation of concerns by keeping business logic in controllers
- Simplifies view templates to only handle presentation
Fix XSS vulnerabilities in report views - escape user-controllable summary data and labels
Fix base64 encoding URL issue in delete payment - properly URL encode base64 string
Fix remaining return type declarations for Sales controller
Fixed additional methods that call _reload():
- postAdd() - returns _reload($data)
- postAddPayment() - returns _reload($data)
- postEditItem() - returns _reload($data)
- postSuspend() - returns _reload($data)
- postSetPaymentType() - returns _reload()
All methods now return ResponseInterface|string to match _reload() signature.
This resolves PHP TypeError errors.
* Add attachment cid when sending emails (#4308)
Also check if an encryption key is set before decrypting the SMTP
password.
* Upgrade to CI 4.6.3 (#4308)
* Fix for changing invoice id in email (#4308)
* `execute_script()` now returns a boolean for error handling.
* Added transaction to `Migration_MissingConfigKeys.up()`.
* Added logging to various migrations.
* Added transaction to `Migration_MissingConfigKeys.up()`.
* Added logging to various migrations.
* Formatting and function call fixes
Fixed a minor formatting issue in the migration helper.
Replaced a few remaining error_log() calls.
Updated executeScriptWithTransaction() to use log_message()
* Function call fix
Replaced the last error_log() calls with log_message().
---------
Co-authored-by: Joe Williams <hey-there-joe@outlook.com>
* Improve code style and PSR-12 compliance
- refactored code formatting to adhere to PSR-12 guidelines
- standardized coding conventions across the codebase
- added missing framework files and reverted markup changes
- reformatted arrays for enhanced readability
- updated language files for consistent styling and clarity
- minor miscellaneous improvements
- Added TODO where we need to convert to querybuilder
- Converted to switch statement.
- Removed unnecessary local variable
- Replaced Qualifiers with imports
- Replaced isset() call with null coalescing operator
- Replaced strpos function calls in if statements with str_contains calls
- Removed unnecessary leading \ in use statement
- Replaced deprecated functions
- Updated PHPdocs to match function signature
- Added missing type declarations
- Made class variables private.
- Explicitly declared dynamic properties
- use https:// links instead of http://
- Fixed type error from sending null when editing transactions
- Fixed Search Suggestion function name in Employees, Persons, Suppliers controller
- Fixed function name on Receivings Controller
Signed-off-by: objecttothis <objecttothis@gmail.com>
Receivings receipt returning the following errors:
. Param count in the URI are greater than the controller method
. ($supplier_id) must be of type int
- Removed overflow-visible as it is not needed.
- Bumped TamTamChik/nameCase to latest.
- Workaround to prevent nameCase from capitalizing the first letter of html entities
- Autoload security_helper.php
- Develop means of escaping outputs without encoding characters we don't want encoded.
- proof of concept in form_basic_info.php
- Barcode content is item_id if barcode_number is empty.
- Styling fixes
- Bump picquer/php-barcode-generator version to 2.4.0
- Ported over Receipt Barcode Generation
- Removed `mixed` function return type from some functions for backward compatibility with php 7.4
- Refactored string concatination for readability.
- Added TODO for later
- Corrected PHPdocs
- Removed unneeded TODO
- Refactored function names with mixed snake and pascal case names
- Added missing PHPdocs
- Corrected Syntax
- Added noinspection parameters to PHPdoc for AJAX called functions
- Added missing function return types
- Added missing parameter types
- Added public keyword to functions without visibility modifier
- Corrected incorrectly formatted PHPdocs
- Added public to constants and functions missing a visibility keyword
objecttothis