<?php
if ( ! defined( 'ABSPATH' ) ) exit; // Exit if accessed directly
use \WebPExpress\HTAccessCapabilityTestRunner;
use \WebPExpress\Config;
use \WebPExpress\ConvertersHelper;
use \WebPExpress\DismissableMessages;
use \WebPExpress\FileHelper;
use \WebPExpress\HTAccess;
use \WebPExpress\HTAccessRules;
use \WebPExpress\Messenger;
use \WebPExpress\Paths;
use \WebPExpress\PlatformInfo;
use \WebPExpress\State;
// TODO: Move most of this file into a ProblemDetector class (SystemHealth)
if (!(State::getState('configured', false))) {
include __DIR__ . "/page-welcome.php";
if (PlatformInfo::isNginx()) {
DismissableMessages::addDismissableMessage('0.16.0/nginx-link-to-faq');
}
}
$storedCapTests = $config['base-htaccess-on-these-capability-tests'];
/*
if (HTAccessCapabilityTestRunner::modRewriteWorking()) {
echo 'mod rewrite works. that is nice';
}*/
/*if (HTAccessCapabilityTestRunner::modHeaderWorking() === true) {
//echo 'nice!';
}*/
// Dissmiss page messages for which the condition no longer applies
if ($config['image-types'] != 1) {
DismissableMessages::dismissMessage('0.14.0/suggest-enable-pngs');
}
//DismissableMessages::dismissAll();
//DismissableMessages::addDismissableMessage('0.14.0/suggest-enable-pngs');
//DismissableMessages::addDismissableMessage('0.14.0/suggest-wipe-because-lossless');
//DismissableMessages::addDismissableMessage('0.14.0/say-hello-to-vips');
DismissableMessages::printMessages();
//$dismissableMessageIds = ['suggest-enable-pngs'];
$firstActiveAndWorkingConverterId = ConvertersHelper::getFirstWorkingAndActiveConverterId($config);
$workingIds = ConvertersHelper::getWorkingConverterIds($config);
$cacheEnablerActivated = in_array('cache-enabler/cache-enabler.php', get_option('active_plugins', []));
if ($cacheEnablerActivated) {
$cacheEnablerSettings = get_option('cache-enabler', []);
$webpEnabled = (isset($cacheEnablerSettings['webp']) && $cacheEnablerSettings['webp']);
}
if ($cacheEnablerActivated && !$webpEnabled) {
Messenger::printMessage(
'warning',
'You are using Cache Enabler, but have not enabled the webp option, so Cache Enabler is not operating with a separate cache ' .
'for webp-enabled browsers.'
);
}
/*
Commented out
In newer PHP, it generates a fatal (uncatchable) error:
Fatal error: Uncaught Error: Call to a member function is_feature_active() on null
See #562
$elementorActivated = in_array('elementor/elementor.php', get_option('active_plugins', []));
if ($elementorActivated) {
try {
// The following is wrapped in a try statement because it depends on Elementor classes which might be subject to change
if (\Elementor\Plugin::$instance->experiments->is_feature_active( 'e_optimized_css_loading' ) === false) {
if ($config['redirect-to-existing-in-htaccess'] === false) {
DismissableMessages::addDismissableMessage('0.23.0/elementor');
}
}
} catch (\Exception $e) {
// Well, just bad luck.
}
}
*/
if (($config['operation-mode'] == 'cdn-friendly') && !$config['alter-html']['enabled']) {
//echo print_r(get_option('cache-enabler'), true);
if ($cacheEnablerActivated) {
if ($webpEnabled) {
Messenger::printMessage(
'info',
'You should consider enabling Alter HTML. This is not necessary, as you have <i>Cache Enabler</i> enabled, which alters HTML. ' .
'However, it is a good idea because currently <i>Cache Enabler</i> does not replace as many URLs as WebP Express (ie ' .
'background images in inline styles)'
);
}
} else {
Messenger::printMessage(
'warning',
'You are in CDN friendly mode but have not enabled Alter HTML (and you are not using Cache Enabler either). ' .
'This is usually a misconfiguration because in this mode, the only way to get webp files delivered ' .
'is by referencing them in the HTML.'
);
}
}
/*
if (!$anyRedirectionToConverterEnabled && ($config['operation-mode'] == 'cdn-friendly')) {
// this can not happen in varied image responses. it is ok in no-conversion, and also tweaked, because one could wish to tweak the no-conversion mode
Messenger::printMessage(
'warning',
'You have not enabled any of the redirects to the converter. ' .
'At least one of the redirects is required for triggering WebP generation.'
);
}*/
if ($config['alter-html']['enabled'] && !$config['alter-html']['only-for-webps-that-exists'] && !$config['enable-redirection-to-webp-realizer']) {
Messenger::printMessage(
'warning',
'You have configured Alter HTML to make references to WebP files that are yet to exist, ' .
'<i>but you have not enabled the option that makes these files come true when requested</i>. Do that!'
);
}
if ($config['enable-redirection-to-webp-realizer'] && $config['alter-html']['enabled'] && $config['alter-html']['only-for-webps-that-exists']) {
Messenger::printMessage(
'warning',
'You have enabled the option that redirects requests for non-existing webp files to the converter, ' .
'<i>but you have not enabled the option to point to these in Alter HTML</i>. Please do that!'
);
}
if ($config['image-types'] == 3) {
$workingConverters = ConvertersHelper::getWorkingAndActiveConverters($config);
if (count($workingConverters) == 1) {
if (ConvertersHelper::getConverterId($workingConverters[0]) == 'gd') {
if (isset($workingConverters[0]['options']['skip-pngs']) && $workingConverters[0]['options']['skip-pngs']) {
Messenger::printMessage(
'warning',
'You have enabled PNGs, but configured Gd to skip PNGs, and Gd is your only active working converter. ' .
'This is a bad combination!'
);
}
}
}
}
/*
if (Config::isConfigFileThereAndOk() ) { // && PlatformInfo::definitelyGotModEnv()
if (!isset($_SERVER['HTACCESS'])) {
Messenger::printMessage(
'warning',
"Using rewrite rules in <i>.htaccess</i> files seems to be disabled " .
"(The <i>AllowOverride</i> directive is probably set to <i>None</i>. " .
"It needs to be set to <i>All</i>, or at least <i>FileInfo</i> to allow rewrite rules in <i>.htaccess</i> files.)<br>" .
"Disabled <i>.htaccess</i> files is actually a good thing, both performance-wise and security-wise. <br> " .
"But it means you will have to insert the following rules into your apache configuration manually:" .
"<pre>" . htmlentities(print_r(Config::hmmm(), true)) . "</pre>"
);
}
}*/
if (!Paths::createContentDirIfMissing()) {
Messenger::printMessage(
'error',
'WebP Express needs to create a directory "webp-express" under your wp-content folder, but does not have permission to do so.<br>' .
'Please create the folder manually, or change the file permissions of your wp-content folder (failed to create this folder: ' .
esc_html(Paths::getWebPExpressContentDirAbs()) . ')'
);
} else {
if (!Paths::createConfigDirIfMissing()) {
Messenger::printMessage(
'error',
'WebP Express needs to create a directory "webp-express/config" under your wp-content folder, but does not have permission to do so.<br>' .
'Please create the folder manually, or change the file permissions.'
);
}
if (!Paths::createCacheDirIfMissing()) {
Messenger::printMessage(
'error',
'WebP Express needs to create a directory "webp-express/webp-images" under your wp-content folder, but does not have permission to do so.<br>' .
'Please create the folder manually, or change the file permissions.'
);
}
}
if (Config::isConfigFileThere()) {
if (!Config::isConfigFileThereAndOk()) {
$json = FileHelper::loadFile(Paths::getConfigFileName());
if ($json === false) {
Messenger::printMessage(
'warning',
'Warning: The configuration file is not ok! (cant be read).<br>' .
'file: "' . esc_html(Paths::getConfigFileName()) . '"'
);
} else {
Messenger::printMessage(
'warning',
'Warning: The configuration file is not ok! (not valid json).<br>' .
'file: "' . esc_html(Paths::getConfigFileName()) . '"'
);
}
} else {
if ($config['redirect-to-existing-in-htaccess']) {
if (PlatformInfo::isApacheOrLiteSpeed() && !(HTAccessCapabilityTestRunner::modHeaderWorking())) {
Messenger::printMessage(
'warning',
'It seems your server setup does not support headers in <i>.htaccess</i>. You should either fix this (install <i>mod_headers</i>) <i>or</i> ' .
'deactivate the "Enable direct redirection to existing converted images?" option. Otherwise the <i>Vary:Accept</i> header ' .
'will not be added and this can result in problems for users behind proxy servers (ie used in larger companies)'
);
}
}
$anyRedirectionToConverterEnabled = (($config['enable-redirection-to-converter']) || ($config['enable-redirection-to-webp-realizer']));
$anyRedirectionEnabled = ($anyRedirectionToConverterEnabled || $config['redirect-to-existing-in-htaccess']);
if ($anyRedirectionEnabled) {
if (PlatformInfo::isApacheOrLiteSpeed() && PlatformInfo::definitelyNotGotModRewrite()) {
Messenger::printMessage(
'warning',
"Rewriting isn't enabled on your server. " .
'You must either switch to "CDN friendly" mode or enable rewriting. ' .
"Tell your host or system administrator to enable the 'mod_rewrite' module. " .
'If you are on a shared host, chances are that mod_rewrite can be turned on in your control panel.'
);
}
}
if ($anyRedirectionToConverterEnabled) {
$canRunInWod = HTAccessCapabilityTestRunner::canRunTestScriptInWOD();
$canRunInWod2 = HTAccessCapabilityTestRunner::canRunTestScriptInWOD2();
if (!$canRunInWod && !$canRunInWod2) {
$turnedOn = [];
if ($config['enable-redirection-to-converter']) {
$turnedOn[] = '"Enable redirection to converter"';
}
if ($config['enable-redirection-to-webp-realizer']) {
$turnedOn[] = '"Create webp files upon request?""';
}
Messenger::printMessage(
'warning',
'<p>You have turned on ' . implode(' and ', $turnedOn) .
'. However, ' . (count($turnedOn) == 2 ? 'these features' : 'this feature') .
' does not work on your current server settings / wordpress setup, ' .
' because the PHP scripts in the plugin folder (in the "wod" and "wod2" subfolders) fails to run ' .
' when requested directly. You can try to fix the problem or simply turn ' .
(count($turnedOn) == 2 ? 'them' : 'it') .
' off and rely on "Convert on upload" and "Bulk Convert" to get the images converted.</p>' .
'<p>If you are going to try to solve the problem, you need at least one of the following pages ' .
'to display "pong": ' .
'<a href="' . Paths::getWebPExpressPluginUrl() . '/wod/ping.php" target="_blank">wod-test</a>' .
' or <a href="' . Paths::getWebPExpressPluginUrl() . '/wod2/ping.php" target="_blank">wod2-test</a>' .
'. The problem will typically be found in the server configuration or a security plugin. ' .
'If one of the links results in a 403 Permission denied, look out for "deny" and "denied" in ' .
'httpd.conf, /etc/apache/sites-enabled/your-site.conf and in parent .htaccess files.' .
'</p>.'
);
}
// We currently allow the "canRunTestScriptInWOD" test not to be stored,
// If it is not stored, it means .htaccess files are pointing to "wod"
// PS: the logic of where it is stored happens in HTAccessRules::getWodUrlPath
// - we mimic it here.
$pointingToWod = true; // true = pointing to "wod", false = pointing to "wod2"
$hasWODTestBeenRun = isset($storedCapTests['canRunTestScriptInWOD']);
if ($hasWODTestBeenRun && !($storedCapTests['canRunTestScriptInWOD'])) {
$pointingToWod = false;
}
$canOnlyRunInWod = $canRunInWod && !$canRunInWod2;
if ($canOnlyRunInWod && !$pointingToWod) {
Messenger::printMessage(
'warning',
'The conversion script cannot currently be run. ' .
'However, simply click "Save settings <b>and force new .htaccess rules</b>" to fix it. ' .
'(this will point to the script in the "wod" folder rather than "wod2")'
);
}
$canOnlyRunInWod2 = $canRunInWod2 && !$canRunInWod;
if ($canOnlyRunInWod2 && $pointingToWod) {
Messenger::printMessage(
'warning',
'The conversion script cannot currently be run. ' .
'However, simply click "Save settings <b>and force new .htaccess rules</b>" to fix it. ' .
'(this will point to the script in the "wod2" folder rather than "wod")'
);
}
}
if (HTAccessRules::arePathsUsedInHTAccessOutdated()) {
$pathsGoingToBeUsedInHtaccess = [
'wod-url-path' => Paths::getWodUrlPath(),
];
$config2 = Config::loadConfig();
if ($config2 === false) {
Messenger::printMessage(
'warning',
'Warning: Config file cannot be loaded. Perhaps clicking ' .
'<i>Save settings</i> will solve it<br>'
);
}
$warningMsg = 'Warning: Wordpress paths have changed since the last time the Rewrite Rules was generated. The rules ' .
'needs updating! (click <i>Save settings</i> to do so)<br><br>' .
'The following have changed:<br>';
foreach ($config2['paths-used-in-htaccess'] as $prop => $value) {
if (isset($pathsGoingToBeUsedInHtaccess[$prop])) {
if ($value != $pathsGoingToBeUsedInHtaccess[$prop]) {
$warningMsg .= '- ' . $prop . '(was: ' . $value . '- but is now: ' . $pathsGoingToBeUsedInHtaccess[$prop] . ')<br>';
}
}
}
Messenger::printMessage(
'warning',
$warningMsg
);
}
}
}
$haveRulesInIndexDir = HTAccess::haveWeRulesInThisHTAccessBestGuess(Paths::getIndexDirAbs() . '/.htaccess');
$haveRulesInContentDir = HTAccess::haveWeRulesInThisHTAccessBestGuess(Paths::getContentDirAbs() . '/.htaccess');
if ($haveRulesInIndexDir && $haveRulesInContentDir) {
// TODO: Use new method for determining if htaccess contains rules.
// (either haveWeRulesInThisHTAccessBestGuess($filename) or haveWeRulesInThisHTAccess($filename))
if (!HTAccess::saveHTAccessRulesToFile(Paths::getIndexDirAbs() . '/.htaccess', '# WebP Express has placed its rules in your wp-content dir. Go there.', false)) {
Messenger::printMessage(
'warning',
'Warning: WebP Express have rules in both your wp-content folder and in your Wordpress folder.<br>' .
'Please remove those in the <i>.htaccess</i> in your Wordress folder manually, or let us handle it, by granting us write access'
);
}
}
$ht = FileHelper::loadFile(Paths::getIndexDirAbs() . '/.htaccess');
if ($ht !== false) {
$posWe = strpos($ht, '# BEGIN WebP Express');
$posWo = strpos($ht, '# BEGIN WordPress');
if (($posWe !== false) && ($posWo !== false) && ($posWe > $posWo)) {
$haveRulesInIndexDir = HTAccess::haveWeRulesInThisHTAccessBestGuess(Paths::getIndexDirAbs() . '/.htaccess');
if ($haveRulesInIndexDir) {
Messenger::printMessage(
'warning',
'Problem detected. ' .
'In order for the "Convert non-existing webp-files upon request" functionality to work, you need to either:<br>' .
'- Move the WebP Express rules above the Wordpress rules in the .htaccess file located in your root dir<br>' .
'- Grant the webserver permission to your wp-content dir, so it can create its rules there instead.'
);
}
}
}