Feature/secure mode #45
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WalkthroughThis pull request introduces updates to the Tawk.to integration for PrestaShop versions 1.7 and 8.x. The changes focus on enhancing widget configuration, security, and visitor tracking. Key modifications include adding new constants for API keys, implementing encryption for sensitive data, updating template files to support new configuration options, and introducing a hash-based visitor identification mechanism. Changes
Sequence DiagramsequenceDiagram
participant Admin as Admin Interface
participant Controller as AdminTawktoController
participant Module as Tawkto Module
participant Encryption as Encryption Service
Admin->>Controller: Submit Widget Options
Controller->>Controller: Process Options
Controller->>Encryption: Encrypt JS API Key
Encryption-->>Controller: Encrypted Key
Controller->>Module: Update Configuration
Module-->>Admin: Configuration Updated
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prestashop1.7/views/templates/admin/tawkto/helpers/view/view.tpl
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Actionable comments posted: 2
♻️ Duplicate comments (4)
prestashop1.7/controllers/admin/AdminTawktoController.php (2)
92-99: 🛠️ Refactor suggestionGuard against null before accessing $widgetOpts->js_api_key.
As in the 8.x implementation, ensure$widgetOptsis an object before checking its properties to avoid PHP notices.
230-252: 🛠️ Refactor suggestionHandle non-array decoding results for $currentOpts.
Like in the 8.x changes, decode errors can produce null or invalid arrays. Ensure$currentOptsis an array before merging.prestashop8.x/tawkto.php (1)
178-183:⚠️ Potential issueImprove error handling in hash generation.
Currently, hash generation failures silently return an empty string, which could mask issues and cause hard-to-debug behavior.
Apply this diff to improve error handling:
try { $key = $this->getJsApiKey($options->js_api_key); $hash = hash_hmac('sha256', $customer_email, $key); } catch (Exception $e) { - $hash = ''; + // Log the error for debugging + PrestaShopLogger::addLog('Failed to generate visitor hash: ' . $e->getMessage(), 3); + throw new Exception('Failed to generate secure visitor identification. Please check your API key.'); }prestashop1.7/tawkto.php (1)
179-184:⚠️ Potential issueImprove error handling in hash generation.
Currently, hash generation failures silently return an empty string, which could mask issues and cause hard-to-debug behavior.
Apply this diff to improve error handling:
try { $key = $this->getJsApiKey($options->js_api_key); $hash = hash_hmac('sha256', $customer_email, $key); } catch (Exception $e) { - $hash = ''; + // Log the error for debugging + PrestaShopLogger::addLog('Failed to generate visitor hash: ' . $e->getMessage(), 3); + throw new Exception('Failed to generate secure visitor identification. Please check your API key.'); }
🧹 Nitpick comments (3)
prestashop8.x/views/templates/hook/widget.tpl (1)
25-28: Conditional addition of 'hash' property is well-handled.
Ensure that Tawk.to’s API accepts and interprets thehashparameter as intended. Otherwise, a no-op or unexpected behavior could occur.prestashop8.x/views/templates/admin/tawkto/helpers/view/view.tpl (2)
227-229: Add client-side validation for the API key field.Consider adding basic client-side validation to ensure the API key meets the required format before submission.
Add this JavaScript to validate the API key format:
document.getElementById('js_api_key').addEventListener('input', function(e) { const apiKey = e.target.value; const isValid = /^[a-zA-Z0-9-_]{20,}$/.test(apiKey); e.target.setCustomValidity(isValid ? '' : 'Please enter a valid API key'); });
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452-464: Consider adding error details to the failure message.The AJAX error handling could be more informative by including specific error details from the server response.
- $('#optionsFailureMessage').text(r.message).toggle().delay(3000).fadeOut(); + const errorDetails = r.details ? `: ${r.details}` : ''; + $('#optionsFailureMessage').text(`${r.message}${errorDetails}`).toggle().delay(3000).fadeOut();
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📒 Files selected for processing (10)
.gitignore(1 hunks).phpcs.xml(1 hunks)prestashop1.7/controllers/admin/AdminTawktoController.php(5 hunks)prestashop1.7/tawkto.php(2 hunks)prestashop1.7/views/templates/admin/tawkto/helpers/view/view.tpl(11 hunks)prestashop1.7/views/templates/hook/widget.tpl(1 hunks)prestashop8.x/controllers/admin/AdminTawktoController.php(5 hunks)prestashop8.x/tawkto.php(2 hunks)prestashop8.x/views/templates/admin/tawkto/helpers/view/view.tpl(11 hunks)prestashop8.x/views/templates/hook/widget.tpl(1 hunks)
✅ Files skipped from review due to trivial changes (1)
- .gitignore
🔇 Additional comments (19)
prestashop8.x/controllers/admin/AdminTawktoController.php (4)
28-28: Use of public constant for indicating 'no change' looks good.
This constant helps clearly distinguish when the JavaScript API key should remain unchanged.
121-121: Variable assignment is consistent with template usage.
Passingwidget_optsto the view aligns with your template updates.
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254-338: Avoid double-decoding the input.
parse_str($params, $options)already applies URL decoding. Callingurldecodeon$valueagain can lead to unexpected behavior. This was also flagged previously:
340-373: Ensure COOKIE_KEY matches AES-256 requirements.
For AES-256, the key ideally should be 32 bytes. If_COOKIE_KEY_is shorter or longer, consider deriving a 32-byte key via a suitable hashing function before passing it toopenssl_encrypt.prestashop1.7/controllers/admin/AdminTawktoController.php (4)
29-29: Constant definition for 'no change' is clear.
This mirrors the approach used in the 8.x controller and keeps functionality consistent.
122-122: Passing 'widget_opts' to the template looks correct.
This usage is analogous to the 8.x controller changes and keeps the template in sync.
Line range hint
254-338: Double-decoding caution.
Calling bothparse_strandurldecodecan lead to inconsistencies, as flagged in previous feedback. Consider alternative parsing strategies or posting JSON.
340-373: Verify COOKIE_KEY length for AES-256 encryption.
Maintain a consistent 256-bit key. If_COOKIE_KEY_is not 32 bytes, you may need hashing or key derivation logic.prestashop1.7/views/templates/hook/widget.tpl (1)
25-28: LGTM! Secure visitor identification implemented correctly.The hash property is properly added to the visitor object with appropriate escaping.
prestashop8.x/tawkto.php (2)
170-172: LGTM! Good initialization practice.Initializing variables as empty strings instead of null is a good practice for string variables.
293-347: LGTM! Secure implementation of data decryption.The implementation:
- Uses secure AES-256-CBC encryption
- Properly handles IV extraction
- Has comprehensive error handling
- Includes input validation
prestashop1.7/tawkto.php (2)
171-173: LGTM! Good initialization practice.Initializing variables as empty strings instead of null is a good practice for string variables.
295-349: LGTM! Secure implementation of data decryption.The implementation:
- Uses secure AES-256-CBC encryption
- Properly handles IV extraction
- Has comprehensive error handling
- Includes input validation
prestashop1.7/views/templates/admin/tawkto/helpers/view/view.tpl (3)
71-76: LGTM! Well-structured CSS for alerts.The CSS classes are properly defined with clear styling rules.
214-233: LGTM! Secure input field implementation.The implementation:
- Uses password type for sensitive data
- Includes clear explanation
- Properly escapes values
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430-464: LGTM! Good user feedback implementation.The implementation provides clear feedback through:
- Success messages with auto-hide
- Error messages with details
- Proper AJAX error handling
prestashop8.x/views/templates/admin/tawkto/helpers/view/view.tpl (2)
430-431: LGTM! Good error handling feedback.The success and failure messages are well-implemented with appropriate styling and timeout.
214-216: Add validation requirements for the Javascript API Key.The notice about Secure Mode and API key requirements is good, but it should indicate if the API key is required when Secure Mode is enabled.
- Note: If Secure Mode is enabled on your property, please enter your Javascript API Key to ensure visitor recognition works correctly. + Note: If Secure Mode is enabled on your property, the Javascript API Key is required to ensure visitor recognition works correctly.✅ Verification successful
API key is required for Secure Mode functionality
The code confirms that the Javascript API Key is required for visitor recognition to work when Secure Mode is enabled. Without a valid API key, the visitor recognition feature fails silently. The suggested text change makes this requirement clearer to users.
🏁 Scripts executed
The following scripts were executed for the analysis:
Error: No shell scripts found
Script:
#!/bin/bash # Search for secure mode and API key related code echo "=== Searching for secure mode configuration ===" rg -i "secure.?mode" -g "!*.min.*" -g "!*.map" -A 5 -B 5 echo -e "\n=== Searching for API key validation ===" rg -i "api.?key" -g "!*.min.*" -g "!*.map" -A 5 -B 5 echo -e "\n=== Looking for PHP classes handling configuration ===" ast-grep --pattern 'class $_ { $$$ secure$_($$$) { $$$ } $$$ }'Length of output: 22037
.phpcs.xml (1)
20-21: LGTM! Consistent with existing param comment rules.The new exclusions for throws documentation align with the existing param comment rules, maintaining a consistent documentation style throughout the codebase.
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Actionable comments posted: 1
♻️ Duplicate comments (1)
prestashop8.x/tawkto.php (1)
181-187: 🛠️ Refactor suggestionImprove error handling for visitor identification.
Silently failing and returning an empty string could mask security issues. Consider logging the errors and using a more explicit error state:
try { $key = $this->getJsApiKey($options->js_api_key); $hash = hash_hmac('sha256', $customer_email, $key); } catch (Exception $e) { - $hash = ''; + PrestaShopLogger::addLog( + 'Tawkto: Failed to generate visitor hash: ' . $e->getMessage(), + 2, // Warning level + null, + 'Tawkto' + ); + // Use a specific error state instead of empty string + $hash = 'ERROR'; }
🧹 Nitpick comments (2)
prestashop8.x/tawkto.php (2)
332-354: Add integrity verification to encrypted data.While the encryption implementation is solid, it lacks integrity verification. Consider adding an HMAC to prevent tampering with the encrypted data:
private function getDecryptedData(string $data) { if (!defined('_COOKIE_KEY_')) { throw new Exception('Cookie key not defined'); } $decoded = base64_decode($data); if ($decoded === false) { throw new Exception('Failed to decode data'); } - $iv = substr($decoded, 0, 16); - $encrypted_data = substr($decoded, 16); + // Extract HMAC (32 bytes for SHA256) + $hmac = substr($decoded, 0, 32); + $iv = substr($decoded, 32, 16); + $encrypted_data = substr($decoded, 48); + + // Verify HMAC + $calculated_hmac = hash_hmac('sha256', $iv . $encrypted_data, _COOKIE_KEY_, true); + if (!hash_equals($hmac, $calculated_hmac)) { + throw new Exception('Data integrity check failed'); + } $decrypted_data = openssl_decrypt($encrypted_data, 'AES-256-CBC', _COOKIE_KEY_, 0, $iv); if ($decrypted_data === false) { throw new Exception('Failed to decrypt data'); } return $decrypted_data; }
314-316: LGTM! Session-based caching improves performance.Good use of session storage to prevent repeated decryption of the API key. Consider adding a timestamp to handle key rotation:
if (isset($_SESSION[self::TAWKTO_JS_API_KEY])) { - return $_SESSION[self::TAWKTO_JS_API_KEY]; + $cached = $_SESSION[self::TAWKTO_JS_API_KEY]; + if (isset($cached['timestamp']) && (time() - $cached['timestamp'] < 3600)) { + return $cached['key']; + } }
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prestashop1.7/tawkto.php(4 hunks)prestashop8.x/tawkto.php(4 hunks)
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prestashop1.7/tawkto.php (1)
104-354: Same findings as in prestashop8.x/tawkto.phpThe changes in this file are identical to those in prestashop8.x/tawkto.php. All previous review comments apply here as well.
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🧹 Nitpick comments (2)
prestashop8.x/tawkto.php (2)
183-189: Consider logging hash generation failures.While the code properly handles exceptions, silently setting an empty hash might make debugging difficult. Consider logging the error for monitoring and troubleshooting purposes.
try { $key = $this->getJsApiKey($options->js_api_key); $hash = hash_hmac('sha256', $customer_email, $key); } catch (Exception $e) { + PrestaShopLogger::addLog('Tawk.to hash generation failed: ' . $e->getMessage(), 2); $hash = ''; }
334-356: Consider using hash_equals for timing-safe comparison.While the decryption implementation is solid, consider adding a timing-safe comparison if the decrypted data needs to be compared with user input to prevent timing attacks.
private function getDecryptedData(string $data) { if (!defined('_COOKIE_KEY_')) { throw new Exception('Cookie key not defined'); } $decoded = base64_decode($data); if ($decoded === false) { throw new Exception('Failed to decode data'); } $iv = substr($decoded, 0, 16); $encrypted_data = substr($decoded, 16); $decrypted_data = openssl_decrypt($encrypted_data, 'AES-256-CBC', _COOKIE_KEY_, 0, $iv); if ($decrypted_data === false) { throw new Exception('Failed to decrypt data'); } + // If you need to compare the decrypted data with user input, + // use hash_equals for timing-safe comparison: + // if (!hash_equals($expected, $decrypted_data)) { + // throw new Exception('Invalid data'); + // } return $decrypted_data; }
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prestashop8.x/tawkto.php(4 hunks)
🔇 Additional comments (4)
prestashop8.x/tawkto.php (4)
37-37: LGTM! Constant follows naming convention.The new constant follows the existing naming pattern and is appropriately used for storing the JS API key.
104-106: Session handling has been properly implemented.The code now includes proper safety checks before starting a session, addressing the previous review comment.
175-177: LGTM! Variables properly initialized.Good practice to initialize variables with empty strings instead of null, especially for sensitive customer data.
308-323: LGTM! Well-structured key retrieval method.The method follows good practices:
- Input validation
- Session caching for performance
- Clear error handling
Co-authored-by: coderabbitai[bot] <136622811+coderabbitai[bot]@users.noreply.github.com>
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prestashop8.x/tawkto.php (1)
214-218: 🛠️ Refactor suggestionAdd cleanup for TAWKTO_JS_API_KEY in uninstall method.
The uninstall method should clean up all module-related configuration keys.
$keys = [ self::TAWKTO_SELECTED_WIDGET, self::TAWKTO_WIDGET_OPTS, self::TAWKTO_WIDGET_USER, + self::TAWKTO_JS_API_KEY, ];
🧹 Nitpick comments (2)
prestashop8.x/tawkto.php (2)
104-106: Add error handling for session initialization.While the session handling checks are good, consider logging a warning when headers are already sent to help with debugging.
if (session_status() === PHP_SESSION_NONE && !headers_sent()) { session_start(); +} elseif (headers_sent()) { + PrestaShopLogger::addLog('Warning: Headers already sent when initializing session in Tawkto module', 2); }
334-356: Add IV length validation in decryption method.While the decryption implementation is secure, add validation for the IV length to prevent potential issues.
$iv = substr($decoded, 0, 16); $encrypted_data = substr($decoded, 16); +if (strlen($iv) !== 16) { + throw new Exception('Invalid IV length'); +} + $decrypted_data = openssl_decrypt($encrypted_data, 'AES-256-CBC', _COOKIE_KEY_, 0, $iv);
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prestashop1.7/tawkto.php(4 hunks)prestashop8.x/tawkto.php(4 hunks)
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prestashop8.x/tawkto.php (1)
175-189: LGTM! Secure visitor identification implementation.The implementation follows security best practices:
- Uses HMAC-SHA256 for hash generation
- Properly handles errors
- Safely initializes variables
prestashop1.7/tawkto.php (1)
1-359: LGTM! Code changes match prestashop8.x version.The implementation is identical to prestashop8.x/tawkto.php. All the suggested improvements from the prestashop8.x version apply here as well.
prestashop8.x/tawkto.php
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| private function getJsApiKey(string $js_api_key) | ||
| { | ||
| if (empty($js_api_key)) { | ||
| throw new Exception('JS API key is empty'); | ||
| } | ||
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| if (isset($_SESSION[self::TAWKTO_JS_API_KEY])) { | ||
| return $_SESSION[self::TAWKTO_JS_API_KEY]; | ||
| } | ||
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| $key = $this->getDecryptedData($js_api_key); | ||
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| $_SESSION[self::TAWKTO_JS_API_KEY] = $key; | ||
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| return $key; | ||
| } |
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💡 Verification agent
🧩 Analysis chain
Consider security implications of storing decrypted API key in session.
While caching the decrypted API key in the session improves performance, it could potentially expose sensitive data if the session is compromised. Consider:
- Using a shorter session timeout for this specific key
- Implementing session fixation protection
🏁 Script executed:
#!/bin/bash
# Check if session security settings are configured
rg -A 5 "ini_set.*session" || echo "No custom session security settings found"Length of output: 121
Action Required: Enhance Session Security for API Key Caching
The getJsApiKey method (in prestashop8.x/tawkto.php, lines 308-323) caches the decrypted JS API key in the session for performance reasons. However, our verification script indicates that no custom session security settings (such as custom session timeouts or fixation protection) are configured. This leaves the sensitive API key exposed if the session is compromised.
Please address the following concerns:
- Session Timeout: Consider reducing the session lifetime specifically for storing sensitive data.
- Session Fixation Protection: Implement measures to regenerate session IDs appropriately and use secure session cookie settings.
- Additional Safeguards: Ensure that session cookies are marked as HttpOnly and Secure, and review server-level session security configurations.
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🧹 Nitpick comments (1)
prestashop8.x/views/templates/admin/tawkto/helpers/view/view.tpl (1)
214-233: Secure Mode implementation with Javascript API Key.The addition of secure mode functionality with the Javascript API Key input is a valuable security enhancement for visitor recognition. However, consider the following improvements:
- Add a tooltip that explains what the "Javascript API Key" is and how to obtain it
- Consider adding a "Show/Hide" button for the password field for better UX
- <p class='tawk-notice'> - Note: If Secure Mode is enabled on your property, please enter your Javascript API Key to ensure visitor recognition works correctly. - </p> + <p class='tawk-notice'> + Note: If Secure Mode is enabled on your property, please enter your Javascript API Key to ensure visitor recognition works correctly. + <span class="tawk-tooltip">What is this? + <span class="tawk-tooltiptext">The Javascript API Key can be found in your tawk.to dashboard under Property Settings > Security. It is required for secure visitor identification.</span> + </span> + </p>And for the input field:
- <input type="password" name="js_api_key" id="js_api_key" - value="{if !is_null($widget_opts) && $widget_opts->js_api_key}{$widget_opts->js_api_key|escape:'html':'UTF-8'}{/if}" - /> + <div class="input-group"> + <input type="password" name="js_api_key" id="js_api_key" + value="{if !is_null($widget_opts) && $widget_opts->js_api_key}{$widget_opts->js_api_key|escape:'html':'UTF-8'}{/if}" + /> + <span class="input-group-btn"> + <button class="btn btn-default" type="button" id="toggle-js-api-key"><i class="icon-eye"></i></button> + </span> + </div>And add this to the JavaScript section:
jQuery("#toggle-js-api-key").click(function() { var input = jQuery("#js_api_key"); if (input.attr("type") === "password") { input.attr("type", "text"); jQuery(this).find("i").removeClass("icon-eye").addClass("icon-eye-slash"); } else { input.attr("type", "password"); jQuery(this).find("i").removeClass("icon-eye-slash").addClass("icon-eye"); } });
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prestashop8.x/views/templates/admin/tawkto/helpers/view/view.tpl(12 hunks)
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prestashop8.x/views/templates/admin/tawkto/helpers/view/view.tpl (8)
71-76: Good addition of styled alert class.This CSS addition allows for consistent styling of success and error messages, with better visibility control.
89-89: Version update in iframe URL.You've correctly updated the platform version from 1.7 to 8 in the iframe URL, ensuring compatibility with PrestaShop 8.x.
206-206: Variable name standardization to$widget_opts.Good refactoring to use
$widget_optsconsistently throughout the template, which aligns with changes in the controller (fromdisplayOptstowidgetOpts). This improves code consistency and maintainability.Also applies to: 251-251, 269-270, 325-325, 346-346, 367-367, 386-387
237-237: Updated panel heading to "Visibility Options".Renaming the panel heading to "Visibility Options" provides better clarity on the purpose of this section.
430-431: Enhanced feedback mechanism for widget options.The introduction of dedicated success and failure message elements improves user feedback when setting widget options. This is a good UX enhancement.
464-464: Improved error message handling.Now displaying the specific failure message from the AJAX response, providing more detailed feedback to users when something goes wrong. This is a good improvement for error handling and user experience.
452-452:✅ Verification successful
Updated AJAX action from
setVisibilitytosetOptions.Changing the action from
setVisibilitytosetOptionsreflects the broader scope of widget configuration, now including secure mode and visitor recognition settings.
🏁 Script executed:
#!/bin/bash # Verify that the AdminTawktoController includes the corresponding ajaxProcessSetOptions method # to handle the new action name # Search for the method in the controller rg -A 10 "function ajaxProcessSetOptions" "prestashop8.x/controllers/admin/AdminTawktoController.php"Length of output: 477
AJAX Action Update Verified
The change from
setVisibilitytosetOptionsis correctly implemented. The presence of theajaxProcessSetOptions()method inprestashop8.x/controllers/admin/AdminTawktoController.phpconfirms that the updated action now supports the broader widget configuration options, including secure mode and visitor recognition.
227-229:✅ Verification successful
Ensure sensitive data is properly secured.
The Javascript API Key is a sensitive credential that should be handled securely. While using a password field is good, make sure this value is encrypted in the database and not stored in plain text.
🏁 Script executed:
#!/bin/bash # Check if encryption is implemented for the API key in the controller # Look for encryption functions or methods in the controller rg -A 5 -B 5 "encrypt|decrypt|crypt" "prestashop8.x/controllers/admin/AdminTawktoController.php" # Check how the API key is saved rg -A 10 "js_api_key" "prestashop8.x/controllers/admin/AdminTawktoController.php"Length of output: 3176
Encryption for the API key is securely implemented.
The controller code confirms that API keys are validated for length and then encrypted using
encryptData()(which uses AES-256-CBC with a random IV and base64 encoding) before storage. Additionally, the view renders this field as a password input and ensures that if a key is already present, it shows a placeholder (self::NO_CHANGE) rather than the real (encrypted) value. This adequately secures sensitive data.
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prestashop8.x/controllers/admin/AdminTawktoController.php (1)
289-289:⚠️ Potential issueFix parse_str usage - missing second parameter.
The
parse_str()function is called incorrectly. The function should have a second parameter to receive the parsed values, otherwise it will pollute the global namespace. This is also a potential security issue.-parse_str($params, $options); +parse_str($options, $params); +$options = $params;Or directly:
-parse_str($params, $options); +parse_str($options, $options);
🧹 Nitpick comments (3)
prestashop8.x/controllers/admin/AdminTawktoController.php (3)
341-375: Robust encryption implementation.The encryption method follows security best practices:
- Uses a secure encryption algorithm (AES-256-CBC)
- Generates a random IV for each encryption
- Includes comprehensive error handling
- Uses the PrestaShop cookie key as encryption key
One suggestion: consider adding a comment explaining that the IV is prepended to the encrypted data before base64 encoding, as this will be important for the decryption process.
- $encrypted = base64_encode($iv . $encrypted); + // Prepend IV to encrypted data before base64 encoding (needed for decryption) + $encrypted = base64_encode($iv . $encrypted);
352-354: Consider using a fallback encryption key.If
_COOKIE_KEY_is not defined, the encryption will fail. Consider implementing a fallback mechanism or storing this information in the database configuration.if (!defined('_COOKIE_KEY_')) { - throw new Exception('Cookie key not defined'); + // Use a fallback encryption key or generate one + $encryptionKey = Configuration::get('TAWKTO_ENCRYPTION_KEY'); + if (empty($encryptionKey)) { + $encryptionKey = bin2hex(random_bytes(16)); + Configuration::updateValue('TAWKTO_ENCRYPTION_KEY', $encryptionKey); + } } else { + $encryptionKey = _COOKIE_KEY_; } // Later use $encryptionKey instead of _COOKIE_KEY_Is the
_COOKIE_KEY_guaranteed to be defined in all PrestaShop installations and contexts? Please verify if there are any situations where this might fail.
28-28: Consider using a more descriptive constant name.While
NO_CHANGEis clear in context, a more descriptive name likeAPI_KEY_NO_CHANGEwould be more explicit about what should not be changed.
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prestashop8.x/controllers/admin/AdminTawktoController.php(2 hunks)prestashop8.x/controllers/admin/AdminTawktoController.php(2 hunks)prestashop8.x/controllers/admin/AdminTawktoController.php(6 hunks)prestashop8.x/controllers/admin/AdminTawktoController.php(2 hunks)prestashop8.x/controllers/admin/AdminTawktoController.php(1 hunks)
✅ Files skipped from review due to trivial changes (1)
- prestashop8.x/controllers/admin/AdminTawktoController.php
🚧 Files skipped from review as they are similar to previous changes (2)
- prestashop8.x/controllers/admin/AdminTawktoController.php
- prestashop8.x/controllers/admin/AdminTawktoController.php
🔇 Additional comments (4)
prestashop8.x/controllers/admin/AdminTawktoController.php (4)
97-99: Consider adding null check before accessing properties.While you've added a check for non-empty
js_api_key, there's still a potential issue if$widgetOptsitself is null. Consider adding a null check to avoid PHP notices:-if (!empty($widgetOpts->js_api_key)) { +if ($widgetOpts && !empty($widgetOpts->js_api_key)) { $widgetOpts->js_api_key = self::NO_CHANGE; }
235-240: Good error handling practice.The addition of try-catch with specific error messages is a good practice for better error handling and debugging.
244-247: Validate array structure before merging.Ensure
$currentOptsis an array before attempting to merge. The current implementation may cause warnings if JSON decoding fails.if (!empty($currentOpts)) { $currentOpts = json_decode($currentOpts, true); - $jsonOpts = array_merge($currentOpts, $jsonOpts); + if (is_array($currentOpts)) { + $jsonOpts = array_merge($currentOpts, $jsonOpts); + } }
312-334: Good implementation of API key handling.The implementation properly handles different scenarios for the JavaScript API key:
- Preserving the existing value using NO_CHANGE
- Clearing the value with an empty string
- Validating and encrypting new values
- Providing clear error messages
This is a clean approach to sensitive data management.
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prestashop8.x/controllers/admin/AdminTawktoController.php (2)
323-325: Consider using a constant for API key lengthThe API key length (40) is hardcoded. Consider defining it as a class constant for better maintainability.
+ private const JS_API_KEY_LENGTH = 40; // Later in the code - if (strlen(trim($value)) !== 40) { + if (strlen(trim($value)) !== self::JS_API_KEY_LENGTH) {
370-372: Redundant validation for base64_encodeThe check for
$encrypted === falseafterbase64_encode()is unnecessary as this function always returns a string and never returns false (except when passed a non-scalar value, which isn't the case here).$encrypted = base64_encode($iv . $encrypted); - - if ($encrypted === false) { - throw new Exception('Failed to encode data'); - }
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🔇 Additional comments (8)
prestashop8.x/controllers/admin/AdminTawktoController.php (8)
28-29: Appropriate use of class constant for magic valueGood addition of a class constant
NO_CHANGEto replace the magic string 'nochange'. This improves code readability and maintainability.
97-100: Good security practice to mask sensitive dataSetting the JS API key to
NO_CHANGEwhen rendering prevents the actual key from being exposed in the UI, which is a good security practice.
233-240: Improved error handling for options processingThe try-catch block provides better error handling and returns meaningful error messages to the user when option processing fails.
282-283: Addition of JS API key to default optionsGood addition of the JS API key to the default options with an empty string default value.
311-335: Good implementation of API key handlingThe implementation for handling the JS API key includes proper validation of the key length and secure encryption of sensitive data. The code also handles edge cases well (empty values, no-change values).
311-311: Duplicate line detected in switch statementThere is a duplicate case statement for
'enable_visitor_recognition'in the switch statement. One instance should be removed.
341-375: Secure implementation of data encryptionThe encryption method follows security best practices:
- Uses a strong encryption algorithm (AES-256-CBC)
- Generates a secure random IV
- Uses PrestaShop's cookie key as the encryption key
- Includes proper error handling for all potential failure points
- Returns base64-encoded data for safe storage
Consider adding a corresponding decryption method to ensure the encryption can be reversed when needed.
292-336:❓ Verification inconclusive
Consider modernizing form data parsing
Per previous feedback, consider using a more modern approach to parse form data instead of manual parsing with
parse_str().Is your frontend sending form data as URL-encoded or can it be changed to send JSON? If JSON is possible, you could simplify this code using:
🏁 Script executed:
#!/bin/bash # Check if any JS files are sending form data to the ajaxProcessSetOptions endpoint rg -A 3 -B 3 "ajaxProcessSetOptions|SetOptions" --glob "*.js"Length of output: 63
Action: Manually verify the frontend’s form data format for
ajaxProcessSetOptionsThe regex search in the JavaScript files didn’t return any results, so we couldn’t confirm whether the frontend sends data as URL-encoded or if it could be switched to send JSON. Please manually verify how form data is being submitted to the endpoint. If switching to JSON is feasible, you might simplify the code by decoding JSON instead of manually processing URL-encoded strings.
- Confirm that the AJAX calls targeting
ajaxProcessSetOptions(or similar) are sending URL-encoded data.- If there’s an option to switch to JSON, update both the frontend and backend to use JSON for form data handling.
Co-authored-by: coderabbitai[bot] <136622811+coderabbitai[bot]@users.noreply.github.com>
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prestashop8.x/controllers/admin/AdminTawktoController.php (1)
250-301:⚠️ Potential issueDuplicate implementation of processSetOptions method.
There appears to be two implementations of the
processSetOptionsmethod (this one and another at lines 265-340) which will cause PHP errors. This looks like a merge conflict that wasn't properly resolved.The implementation starting at line 265 appears to be more complete (includes handling for
js_api_key). Please remove this duplicate implementation and keep the more comprehensive one.
♻️ Duplicate comments (1)
prestashop8.x/controllers/admin/AdminTawktoController.php (1)
233-236: 🛠️ Refactor suggestionEnsure $currentOpts is an array before merging.
When using
array_merge(), you should validate that$currentOptsis indeed an array to prevent PHP warnings.$currentOpts = json_decode($currentOpts, true); -$jsonOpts = array_merge($currentOpts, $jsonOpts); +if (is_array($currentOpts)) { + $jsonOpts = array_merge($currentOpts, $jsonOpts); +}
🧹 Nitpick comments (1)
prestashop1.7/controllers/admin/AdminTawktoController.php (1)
357-361: Consider a fallback for random_bytes in PHP < 7.0.For broader compatibility with older PHP versions, consider adding a fallback for
random_bytes()which was introduced in PHP 7.0.try { $iv = random_bytes(16); } catch (Exception $e) { + // Fallback for PHP < 7.0 + if (function_exists('openssl_random_pseudo_bytes')) { + $iv = openssl_random_pseudo_bytes(16); + if ($iv === false) { + throw new Exception('Failed to generate IV'); + } + } else { throw new Exception('Failed to generate IV'); + } }
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🔇 Additional comments (10)
prestashop8.x/controllers/admin/AdminTawktoController.php (3)
224-241: Method renamed and improved to better reflect its purpose.The method has been appropriately renamed from
ajaxProcessSetVisibilitytoajaxProcessSetOptionsto reflect its broader functionality. It now handles all widget options rather than just visibility settings.
229-229: Extracting option processing to its own method improves code organization.Moving the option processing logic to a dedicated method (
processSetOptions) improves modularity and makes the code easier to maintain.
275-298: Improve URL-encoded parameter parsing.The current approach to parsing URL-encoded parameters is error-prone. Consider using built-in PHP functions instead.
-$options = explode('&', $options); -foreach ($options as $post) { - [$column, $value] = explode('=', $post); +$parsedOptions = []; +parse_str($options, $parsedOptions); +foreach ($parsedOptions as $column => $value) {This approach uses PHP's built-in
parse_str()function which handles URL decoding and properly parses complex parameter structures.prestashop1.7/controllers/admin/AdminTawktoController.php (7)
29-29: Good addition of the NO_CHANGE constant.Adding this constant improves code readability by giving semantic meaning to a magic string value.
98-100: Properly handling the js_api_key in the UI.Setting
js_api_keytoNO_CHANGEwhen it exists prevents exposing sensitive data in the UI while also preserving the key's value when not explicitly changed.
235-240: Good error handling for option processing.The try-catch block appropriately handles exceptions during option processing and returns a meaningful error message to the user.
312-335: Secure handling of API keys with appropriate validation.The implementation correctly validates and encrypts the JavaScript API key. The checks for
NO_CHANGEand empty values are handled appropriately.
331-332: Improve error message handling for better security.Exposing internal error messages directly to the user interface could potentially leak sensitive information.
-throw new Exception('Javascript API Key: ' . $e->getMessage()); +// Log the detailed error for debugging +PrestaShopLogger::addLog('Javascript API Key error: ' . $e->getMessage(), 3); +throw new Exception('Invalid API key format. Please check the documentation for requirements.');
327-327: Ensure the API key is trimmed before encryption.When encrypting sensitive data, it's important to trim any potential whitespace to avoid unexpected behavior.
-$jsonOpts['js_api_key'] = $this->encryptData($value); +$jsonOpts['js_api_key'] = $this->encryptData(trim($value));
350-375: Well-implemented encryption for sensitive data.The encryption method properly generates a random initialization vector, uses a strong encryption algorithm (AES-256-CBC), and includes appropriate error handling. Good security practice!
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prestashop1.7/controllers/admin/AdminTawktoController.php (2)
263-266:⚠️ Potential issueFix duplicate method declaration
There appears to be duplicate declarations of the
processSetOptionsmethod, which will cause a syntax error.-private function processSetOptions(string $options): array -{ private function processSetOptions(string $params): array {
376-381:⚠️ Potential issueFix code structure issue
There's an extra closing brace at line 377 and the method seems improperly formatted at the end.
return $encrypted; } - } - - return $encrypted; - } }prestashop8.x/controllers/admin/AdminTawktoController.php (2)
243-301:⚠️ Potential issueMethod declaration inconsistency needs to be resolved.
There appear to be two declarations of the
processSetOptionsmethod with different parameter names ($optionsvs.$params) and different return type declarations (:arrayvs. no return type). This will cause syntax errors as PHP doesn't support method overloading.The duplicate method signatures need to be consolidated into a single implementation. Since the PHP code shows both an implementation starting at line 250 and another at line 266, this needs to be resolved by removing one of them.
Parse URL-encoded forms using built-in PHP functions.
The manual parsing of URL-encoded form data could be improved by using PHP's built-in functions like
parse_str().- $options = explode('&', $options); - foreach ($options as $post) { - [$column, $value] = explode('=', $post); + $parsedOptions = []; + parse_str($options, $parsedOptions); + foreach ($parsedOptions as $column => $value) {This approach is more robust as it properly handles URL decoding and complex parameter structures.
346-380: 💡 Verification agent🧩 Analysis chain
Security improvements for encryption implementation.
The encryption implementation is solid but could be enhanced in a few ways:
- The IV is concatenated with the encrypted data which is good practice, but there's no mechanism to verify data integrity after decryption.
- The use of
random_bytes()for IV generation is secure, but consider adding a fallback for older PHP versions.Consider adding a HMAC to ensure data integrity:
$iv = random_bytes(16); $encrypted = openssl_encrypt($data, 'AES-256-CBC', _COOKIE_KEY_, 0, $iv); if ($encrypted === false) { throw new Exception('Failed to encrypt data'); } + // Add HMAC for integrity verification + $hmac = hash_hmac('sha256', $iv . $encrypted, _COOKIE_KEY_, true); - $encrypted = base64_encode($iv . $encrypted); + $encrypted = base64_encode($hmac . $iv . $encrypted); if ($encrypted === false) { throw new Exception('Failed to encode data'); }This would require corresponding changes in the decryption method to verify the HMAC before decryption.
🏁 Script executed:
#!/bin/bash # Check if there's a corresponding decryption method in the codebase echo "Searching for decryption method..." rg -A 5 "decryptData|decrypt.*data" --smart-caseLength of output: 1810
Security Enhancement for Encryption/Decryption Process
While the encryption routine in
prestashop8.x/controllers/admin/AdminTawktoController.php(lines 346-380) is sound in its use of secure functions likerandom_bytes(), please address the following improvements to bolster security and ensure consistency:
Data Integrity Verification:
Although concatenating the IV with the encrypted data is a good practice, there is currently no mechanism to verify the integrity of the data upon decryption. Incorporating an HMAC (e.g., usinghash_hmac('sha256', $iv . $encrypted, _COOKIE_KEY_, true)) would help detect any tampering.Decryption Consistency:
The corresponding decryption functions inprestashop8.x/tawkto.phpandprestashop1.7/tawkto.phpdo not include any HMAC verification. If you integrate an HMAC in the encryption process, please ensure these decryption methods are updated to extract the HMAC, verify it against the IV and encrypted payload, and only then proceed with decryption.Fallback for Older PHP Versions:
Whilerandom_bytes()is secure, consider implementing a fallback mechanism for older PHP versions that might not support it.Suggested Code Diff for Encryption:
$iv = random_bytes(16); $encrypted = openssl_encrypt($data, 'AES-256-CBC', _COOKIE_KEY_, 0, $iv); if ($encrypted === false) { throw new Exception('Failed to encrypt data'); } + // Add HMAC for integrity verification + $hmac = hash_hmac('sha256', $iv . $encrypted, _COOKIE_KEY_, true); - $encrypted = base64_encode($iv . $encrypted); + $encrypted = base64_encode($hmac . $iv . $encrypted); if ($encrypted === false) { throw new Exception('Failed to encode data'); }Please update the decryption functions accordingly to handle the HMAC extraction and verification before decryption.
♻️ Duplicate comments (3)
prestashop1.7/controllers/admin/AdminTawktoController.php (2)
235-240:⚠️ Potential issueAvoid returning raw exception messages to the client
Returning raw exception messages could potentially expose sensitive implementation details or internal paths to users, which is a security concern.
Consider using a generic error message for the client while logging the actual exception details for debugging:
try { // Process selected options $jsonOpts = $this->processSetOptions(Tools::getValue('options')); } catch (Exception $e) { - die(json_encode(['success' => false, 'message' => $e->getMessage()])); + PrestaShopLogger::addLog('Tawk.to API error: ' . $e->getMessage(), 3); + die(json_encode(['success' => false, 'message' => 'An error occurred while processing your request. Please try again or contact support.'])); }
312-335: 🛠️ Refactor suggestionJS API Key handling looks good, but trim the value before encryption
The code correctly handles different states of the JS API key, including validation, but you should trim the value before encryption, not just during validation.
try { if (strlen(trim($value)) !== 40) { throw new Exception('Invalid API key. Please provide value with 40 characters'); } - $jsonOpts['js_api_key'] = $this->encryptData($value); + $jsonOpts['js_api_key'] = $this->encryptData(trim($value)); } catch (Exception $e) { unset($jsonOpts['js_api_key']);prestashop8.x/controllers/admin/AdminTawktoController.php (1)
224-241: 🛠️ Refactor suggestionImprove validation before merging configurations.
The code checks if
$currentOptsis not empty but doesn't validate if it's an array after JSON decoding. If$currentOptscontains invalid JSON that cannot be properly decoded to an array, callingarray_merge()will trigger a PHP warning.$currentOpts = Configuration::get($key); if (!empty($currentOpts)) { $currentOpts = json_decode($currentOpts, true); - $jsonOpts = array_merge($currentOpts, $jsonOpts); + if (is_array($currentOpts)) { + $jsonOpts = array_merge($currentOpts, $jsonOpts); + } }
🧹 Nitpick comments (2)
prestashop1.7/controllers/admin/AdminTawktoController.php (1)
341-375: Good implementation of secure data encryptionThe encryption method is well implemented using AES-256-CBC with a random IV, proper error handling, and base64 encoding of the final encrypted data.
Some minor improvements to consider:
- Use a more specific exception type for encryption errors
- Provide more detailed error messages for random_bytes failure
try { $iv = random_bytes(16); } catch (Exception $e) { - throw new Exception('Failed to generate IV'); + throw new Exception('Failed to generate IV: ' . $e->getMessage()); }prestashop8.x/controllers/admin/AdminTawktoController.php (1)
313-340: Strengthen API key validation.The current validation only checks the length of the API key (40 characters). A more robust approach would also validate the format/character set to ensure it matches expected patterns for API keys.
if (strlen($value) !== 40) { throw new Exception('Invalid API key.'); } + // Validate key contains only valid characters (typically hex or base64) + if (!preg_match('/^[A-Za-z0-9+\/=]+$/', $value)) { + throw new Exception('API key contains invalid characters.'); + }Additionally, the error handling could be improved by being more specific about what's wrong with the API key.
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🔇 Additional comments (3)
prestashop1.7/controllers/admin/AdminTawktoController.php (2)
29-29: Good addition of theNO_CHANGEconstantThe constant provides a clear way to handle the case where the API key should remain unchanged in the form.
98-100: LGTM: Good security practice for sensitive dataSetting the API key to
NO_CHANGEwhen displaying the form prevents exposing the actual key value in the frontend, enhancing security.prestashop8.x/controllers/admin/AdminTawktoController.php (1)
233-236: Fix potential security issue with unvalidated configuration merging.When merging configurations, the code doesn't validate if
$currentOptsis actually an array after JSON decoding, which could lead to unexpected behavior if the stored configuration was tampered with.
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prestashop1.7/tawkto.php (1)
329-333: 🛠️ Refactor suggestionAdd try-catch for API key decryption.
Same as in the 8.x version, consider adding exception handling around the decryption call to prevent exceptions from propagating unexpectedly.
if (empty($js_api_key)) { return ''; } -$key = $this->getDecryptedData($js_api_key); +try { + $key = $this->getDecryptedData($js_api_key); +} catch (Exception $e) { + error_log('Failed to decrypt API key: ' . $e->getMessage()); + return ''; +}
🧹 Nitpick comments (2)
prestashop1.7/controllers/admin/AdminTawktoController.php (2)
245-249: Consider defaulting to empty array for$currentOpts.If
json_decodereturnsnull(for invalid JSON), theis_arraycheck prevents errors, but you might want to provide a clearer default to empty array before the merge.if (!empty($currentOpts)) { $currentOpts = json_decode($currentOpts, true); + if ($currentOpts === null) { + $currentOpts = []; + } if (is_array($currentOpts)) { $jsonOpts = array_merge($currentOpts, $jsonOpts); } }
338-343: Consider using a standardized logging mechanism.While
error_logworks, consider using a more structured logging approach that may be provided by PrestaShop's framework.try { $jsonOpts['js_api_key'] = $this->encryptData($value); } catch (Exception $e) { - error_log($e->getMessage()); + PrestaShopLogger::addLog('Error encrypting API key: ' . $e->getMessage(), 3, null, 'Tawkto', null, true); unset($jsonOpts['js_api_key']); throw new Exception('Error saving Javascript API Key.'); }
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🔇 Additional comments (17)
prestashop8.x/tawkto.php (6)
104-106: Well-implemented session start check.The addition of these safety checks before starting a session is a good practice. This prevents headers already sent errors and avoids session_start warnings if a session is already active.
117-120: Good initialization practice with default values.Explicitly initializing variables with default values before potential conditional assignments improves code readability and prevents potential undefined variable issues.
Also applies to: 130-136
187-189: Visitor tracking implementation with hash.The change from null to empty strings for customer variables and the addition of a hash variable provides better initialization and tracking capabilities. The visitor hash functionality enhances security by using a one-way hash for visitor identification.
Also applies to: 195-195
201-204: Template variable updates for enhanced visitor tracking.The updates to the smarty template variables now include the visitor hash, consistently implementing the enhanced tracking throughout the code.
306-342: Securely implemented visitor hash generation.The
getVisitorHashmethod effectively implements visitor identification with several security considerations:
- Session caching to avoid repeated hash generation
- Validation of existing hashes against current data
- Early return with empty string for empty API keys
- Proper use of HMAC with SHA-256 for hash generation
344-375: Well-structured data decryption with proper error handling.The
getDecryptedDatamethod correctly implements:
- Precondition check for cookie key
- Base64 decoding with failure check
- Proper extraction of IV and encrypted data
- Decryption with failure check
- Descriptive exception messages for each failure case
prestashop1.7/tawkto.php (3)
104-107: Consistent session handling between PrestaShop versions.The session management is implemented consistently between PrestaShop 1.7 and 8.x versions, following best practices to check session status and headers before starting a session.
308-344: Well-implemented visitor hash generation.The visitor hash generation logic follows the same secure implementation as in the PrestaShop 8.x version, providing a consistent security approach across different PrestaShop versions.
346-376: Proper data decryption implementation with error handling.The implementation of the
getDecryptedDatamethod follows security best practices by checking preconditions, validating inputs, and providing specific exception messages for each failure case.prestashop1.7/controllers/admin/AdminTawktoController.php (3)
230-260: Improved options handling with proper error management.The renamed and restructured
ajaxProcessSetOptionsmethod now includes:
- Better error handling with try-catch
- Merging with existing options to preserve unmodified settings
- Configuration versioning for tracking changes
- Clear success/failure responses to the client
These changes significantly enhance the robustness of the options management system.
319-345: Strong API key handling with validation and security measures.The API key handling now includes:
- A NO_CHANGE option to preserve existing keys
- Validation for empty or invalid keys
- Proper trimming of input values
- Secure encryption of valid keys
- Comprehensive error handling with fail-safe behavior
These changes significantly improve the security aspects of API key management.
361-386: Secure encryption implementation with proper error handling.The encryption method includes:
- Proper validation of prerequisites (cookie key)
- Secure generation of random IV
- Strong encryption algorithm (AES-256-CBC)
- Comprehensive error handling
- Validation of encryption and encoding results
This implementation follows cryptographic best practices.
prestashop8.x/controllers/admin/AdminTawktoController.php (5)
97-99: Proper handling of API key persistence.The code correctly handles the API key by setting it to
NO_CHANGEwhen rendering the view, preventing accidental exposure of the actual key while maintaining its state.
230-260: Robust options handling with proper error management.The implementation of
ajaxProcessSetOptionscontains comprehensive error handling and robust state management, ensuring that configuration changes are properly applied and versioned.
329-345: Strong API key validation and security measures.The API key handling includes proper validation, trimming, encryption, and error handling - significantly enhancing the security of the system.
362-386: Secure implementation of encryption with proper error handling.The encryption function follows cryptographic best practices with proper key management, random IV generation, strong encryption algorithm, and comprehensive error handling.
338-343: Use a standardized logging approach.Same as in the PrestaShop 1.7 version, consider using PrestaShop's built-in logging functionality instead of direct error_log calls.
try { $jsonOpts['js_api_key'] = $this->encryptData($value); } catch (Exception $e) { - error_log($e->getMessage()); + PrestaShopLogger::addLog('Error encrypting API key: ' . $e->getMessage(), 3, null, 'Tawkto', null, true); unset($jsonOpts['js_api_key']); throw new Exception('Error saving Javascript API Key.'); }
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🧹 Nitpick comments (2)
prestashop8.x/controllers/admin/AdminTawktoController.php (2)
282-359: Well-implemented options processing method.The method:
- Sets appropriate default values
- Properly validates and processes different types of input
- Handles the API key securely with validation and encryption
- Returns early with defaults if no parameters are provided
Consider sanitizing the URL patterns more thoroughly before processing:
- $value = urldecode($value); - $value = str_ireplace(["\r\n", "\r", "\n"], ',', $value); + $value = urldecode($value); + $value = filter_var($value, FILTER_SANITIZE_URL); + $value = str_ireplace(["\r\n", "\r", "\n"], ',', $value);
331-355: Secure handling of API key.The code properly handles different API key scenarios:
- NO_CHANGE - preserves existing value
- Empty value - uses default
- Valid value - validates length and encrypts
Consider adding additional validation for the API key format beyond just the length check:
- if (strlen($value) !== 40) { + if (strlen($value) !== 40 || !preg_match('/^[a-f0-9]{40}$/i', $value)) { throw new TawktoException('Invalid API key.'); }
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prestashop1.7/controllers/admin/AdminTawktoController.php(5 hunks)prestashop1.7/tawkto.php(5 hunks)prestashop1.7/views/templates/hook/widget.tpl(1 hunks)prestashop8.x/controllers/admin/AdminTawktoController.php(5 hunks)prestashop8.x/tawkto.php(5 hunks)prestashop8.x/views/templates/hook/widget.tpl(1 hunks)
🚧 Files skipped from review as they are similar to previous changes (3)
- prestashop1.7/views/templates/hook/widget.tpl
- prestashop8.x/views/templates/hook/widget.tpl
- prestashop1.7/controllers/admin/AdminTawktoController.php
🧰 Additional context used
🧬 Code Definitions (2)
prestashop1.7/tawkto.php (1)
prestashop8.x/tawkto.php (2) (2)
getVisitorHash(311-348)getDecryptedData(359-381)
prestashop8.x/tawkto.php (1)
prestashop1.7/tawkto.php (2) (2)
getVisitorHash(313-350)getDecryptedData(361-383)
🔇 Additional comments (22)
prestashop1.7/tawkto.php (8)
38-38: Good addition of a constant for session data.Adding this constant follows the established naming convention pattern and provides a consistent way to reference the session data storage key.
114-118: Well-structured initialization of default values.Good practice to initialize default values at the beginning of the method. The empty string for
$js_api_keyand 0 for$config_versionare appropriate default values.
127-133: Proper handling of configuration options.The code correctly checks if each option exists before attempting to use it, which prevents potential PHP notices or errors if the options are not set.
184-186: Improved initialization of variables.Changed from
nullto empty strings for string variables and explicitly set$hashto null. This provides consistent types and prevents potential type-related issues.
191-192: Good implementation of visitor hash generation.The code correctly calls the new
getVisitorHashmethod with the required parameters to generate a secure hash for visitor identification.
198-200: Updated template variables assignment.This change ensures that the template receives the hash value needed for the secure visitor identification feature.
352-383: Secure implementation of decryption method.The decryption method follows security best practices:
- Validates that cookie key is defined
- Handles base64 decoding failure
- Correctly extracts IV from the decoded data
- Uses secure AES-256-CBC algorithm
- Checks for decryption failures with proper exceptions
304-350:❓ Verification inconclusive
Well-implemented visitor hash generation method.
The
getVisitorHashmethod is implemented securely:
- Proper session handling with checks
- Session caching to prevent repeated decryption
- Secure hash generation using HMAC-SHA256
- Proper error handling with logging
- Returns
nullinstead of empty string on failureSince this code handles sensitive data, verify there are no session security vulnerabilities:
🏁 Script executed:
#!/bin/bash # Check for session security settings php -r "echo 'Session cookie parameters: '; print_r(session_get_cookie_params());" php -r "echo 'Session module name: ' . session_module_name();"Length of output: 333
Action: Verify Session Security Configuration
The visitor hash generation method itself is well-implemented—with proper session caching, error handling, and secure HMAC-SHA256 generation. However, the session security checks indicate that PHP is currently using default session cookie parameters (i.e., no explicit settings for the secure, httponly, or samesite flags). Since this code handles sensitive data, please verify that your production environment (or the global PHP configuration) enforces secure session cookie attributes. If not, consider explicitly setting these parameters (for example, via
session_set_cookie_params) before starting the session to mitigate potential session hijacking risks.
- Confirm that your PHP environment or application configuration adequately sets:
secure(true if serving over HTTPS)httponly(true to prevent JavaScript access)samesite(e.g.,'Strict'or'Lax'as appropriate)- Ensure these settings are consistently applied across the application for secure session management.
prestashop8.x/tawkto.php (8)
37-37: Good addition of a constant for session data.Adding this constant follows the established naming convention pattern and provides a consistent way to reference the session data storage key.
113-117: Well-structured initialization of default values.Good practice to initialize default values at the beginning of the method. The empty string for
$js_api_keyand 0 for$config_versionare appropriate default values.
126-133: Proper handling of configuration options.The code correctly checks if each option exists before attempting to use it, which prevents potential PHP notices or errors if the options are not set.
183-186: Improved initialization of variables.Initializing string variables with empty strings rather than null and explicitly setting
$hashto null. This provides consistent types and prevents potential type-related issues.
191-192: Good implementation of visitor hash generation.The code correctly calls the new
getVisitorHashmethod with the required parameters to generate a secure hash for visitor identification.
198-200: Updated template variables assignment.This change ensures that the template receives the hash value needed for the secure visitor identification feature.
302-348: Secure implementation of visitor hash generation.The method properly handles:
- Safe session initialization
- Session caching to prevent repeated decryption operations
- Null return on API key issues rather than empty strings
- Exception handling with logging
- Secure hash generation using HMAC-SHA256
This implementation is an improvement over previous approaches by returning
nullinstead of empty strings on error cases.
350-381: Secure implementation of decryption method.The method follows cryptographic best practices:
- Validates cookie key existence
- Properly handles base64 decoding failures
- Correctly extracts the initialization vector
- Uses industry-standard AES-256-CBC encryption
- Validates decryption success
prestashop8.x/controllers/admin/AdminTawktoController.php (6)
23-28: Good addition of a custom exception class.Creating a dedicated exception class for Tawkto-specific errors allows for better error handling and identification.
35-35: Good use of a class constant for special value.Using a constant rather than a magic string for the "no change" value improves code readability and maintenance.
98-106: Improved widget options handling with null check.The code properly checks if widget options exist and sets to null if not found, which is better than the previous approach. The added check before accessing
$widgetOpts->js_api_keyprevents potential PHP notices.
128-128: Updated variable names for clarity.Changing from
display_optstowidget_optsimproves code readability by using more descriptive variable names.
237-271: Well-structured method for setting options.The renamed method provides better error handling:
- Properly catches and differentiates between TawktoException and other exceptions
- Returns meaningful error messages to the user
- Correctly merges existing options with new ones
- Properly manages the configuration version
361-395: Secure implementation of data encryption.The method follows cryptographic best practices:
- Validates cookie key existence
- Generates a secure random IV using random_bytes()
- Uses industry-standard AES-256-CBC encryption
- Properly handles failures at each step
- Returns base64-encoded result for safe storage
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Actionable comments posted: 0
🧹 Nitpick comments (2)
prestashop1.7/tawkto.php (2)
184-186: Initialize variables with appropriate default values.Consider initializing
$customer_nameand$customer_emailasnullrather than empty strings for consistency with$hash.-$customer_name = ''; -$customer_email = ''; +$customer_name = null; +$customer_email = null; $hash = null;
334-339: Consider caching decrypted API key in session.To improve performance, consider storing the decrypted API key in the session as well, preventing the need to decrypt it for each visitor hash calculation.
try { - $key = $this->getDecryptedData($js_api_key); + if (isset($_SESSION[self::TAWKTO_VISITOR_SESSION]['decrypted_key']) && + isset($_SESSION[self::TAWKTO_VISITOR_SESSION]['encrypted_key']) && + $_SESSION[self::TAWKTO_VISITOR_SESSION]['encrypted_key'] === $js_api_key) { + $key = $_SESSION[self::TAWKTO_VISITOR_SESSION]['decrypted_key']; + } else { + $key = $this->getDecryptedData($js_api_key); + if (!isset($_SESSION[self::TAWKTO_VISITOR_SESSION])) { + $_SESSION[self::TAWKTO_VISITOR_SESSION] = []; + } + $_SESSION[self::TAWKTO_VISITOR_SESSION]['decrypted_key'] = $key; + $_SESSION[self::TAWKTO_VISITOR_SESSION]['encrypted_key'] = $js_api_key; + } } catch (Exception $e) { error_log($e->getMessage()); return null; }
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📒 Files selected for processing (2)
prestashop1.7/tawkto.php(5 hunks)prestashop8.x/tawkto.php(5 hunks)
🚧 Files skipped from review as they are similar to previous changes (1)
- prestashop8.x/tawkto.php
🧰 Additional context used
🧬 Code Definitions (1)
prestashop1.7/tawkto.php (1)
prestashop8.x/tawkto.php (2) (2)
getVisitorHash(311-348)getDecryptedData(359-381)
🔇 Additional comments (7)
prestashop1.7/tawkto.php (7)
38-38: Nicely added constant for session management.The new
TAWKTO_VISITOR_SESSIONconstant provides a standardized way to reference the session key, making the code more maintainable.
115-118: Good approach for handling configuration values.Setting default values before checking configuration options ensures the code is robust even when configuration is incomplete. The conditional assignments for
js_api_keyandconfig_versionare properly implemented.Also applies to: 127-133
192-192: Secure visitor identification implemented correctly.The implementation of visitor hash generation based on email, API key, and config version provides a secure way to identify visitors while protecting sensitive data.
198-201: Template variables properly assigned.All necessary variables including the new
$hashare correctly assigned to the Smarty template.
313-350: Well-designed visitor hash implementation.The
getVisitorHashmethod effectively:
- Handles empty API key cases
- Manages sessions properly
- Caches results to prevent redundant computations
- Uses secure hash generation
- Includes proper error handling
This implementation aligns with the previous review suggestion to use
$_SESSIONto store API key to prevent repeatedly decrypting.
361-383: Robust data decryption implementation.The
getDecryptedDatamethod includes:
- Proper validation of prerequisites (
_COOKIE_KEY_)- Comprehensive error handling with specific exception messages
- Secure decryption using industry-standard AES-256-CBC
- Input validation before processing
This follows good security practices for handling encrypted data.
319-321:❓ Verification inconclusive
Verify session handling across all PrestaShop environments.
The session starting code assumes that sessions can be started at this point. You might want to ensure this doesn't conflict with PrestaShop's own session management, especially in different environments.
🏁 Script executed:
#!/bin/bash # Search for other places where session_start is called in the codebase rg "session_start\(\)" -A 3 -B 3 # Check if PrestaShop has any specific session management utilities rg -i "class.*session" --type phpLength of output: 793
Session Handling Verification – Please Confirm Environment Compatibility
After reviewing the code, I confirmed that both PrestaShop versions (1.7 and 8.x) use the same pattern for starting sessions (i.e., checking that
session_status() === PHP_SESSION_NONEand!headers_sent()before callingsession_start()). Our repository search did not reveal any custom or alternative session management utilities that might conflict with this native PHP session handling.Action Items:
- Verify manually in all deployment environments that invoking
session_start()at this point never conflicts with any PrestaShop-specific session management flows.- Ensure that the initialization order in different PrestaShop setups does not result in unexpected behavior when sessions are started this way.
Summary by CodeRabbit
Chores
.gitignoreto ignore.aider*files..phpcs.xmlto relax function comment rules.New Features
setVisibilitytosetOptions.