234 lines
12 KiB
PHP
234 lines
12 KiB
PHP
<?php
|
|
/* This Source Code Form is subject to the terms of the Mozilla Public
|
|
* License, v. 2.0. If a copy of the MPL was not distributed with this
|
|
* file, You can obtain one at https://mozilla.org/MPL/2.0/. */
|
|
|
|
register_module([
|
|
"name" => "Theme Gallery",
|
|
"version" => "0.4.1",
|
|
"author" => "Starbeamrainbowlabs",
|
|
"description" => "Adds a theme gallery page and optional automatic theme updates. Contacts a remote server, where IP addresses are stored in automatic server logs for security and attack mitigation purposes.",
|
|
"id" => "feature-theme-gallery",
|
|
"code" => function() {
|
|
global $settings;
|
|
/**
|
|
* @api {get} ?action=theme-gallery Display the theme gallery
|
|
* @apiName ThemeGallery
|
|
* @apiGroup Utility
|
|
* @apiPermission Moderator
|
|
*/
|
|
|
|
add_action("theme-gallery", function() {
|
|
global $settings, $env;
|
|
|
|
if(!$env->is_admin) {
|
|
$errorMessage = "<p>You don't have permission to change $settings->sitename's theme.</p>\n";
|
|
if(!$env->is_logged_in)
|
|
$errorMessage .= "<p>You could try <a href='?action=login&returnto=%3Faction%3Dconfigure'>logging in</a>.</p>";
|
|
else
|
|
$errorMessage .= "<p>You could try <a href='?action=logout&returnto=%3Faction%3Dconfigure'>logging out</a> and then <a href='?action=login&returnto=%3Faction%3Dconfigure'>logging in</a> again with a different account that has the appropriate privileges.</a>.</p>";
|
|
exit(page_renderer::render_main("Error - $settings->sitename", $errorMessage));
|
|
}
|
|
|
|
$gallery_urls = explode(" ", $settings->css_theme_gallery_index_url);
|
|
|
|
if(!isset($_GET["load"]) || $_GET["load"] !== "yes") {
|
|
$result = "<h1>Theme Gallery</h1>
|
|
<p>Load the theme gallery? A HTTP request will be made to the following endpoints:</p>
|
|
<ul>";
|
|
foreach($gallery_urls as $url) {
|
|
$result .= "<li><a href='".htmlentities($url)."'>".htmlentities($url)."</a></li>\n";
|
|
}
|
|
$result .= "</ul>
|
|
<p>...with the following user agent string: <code>".ini_get("user_agent")."</code></p>
|
|
<p>No external HTTP requests will be made without your consent.</p>
|
|
<p><a href='?action=theme-gallery&load=yes'>Ok, load the gallery</a>.</p>
|
|
<p> <a href='javascript:history.back();'>Actually, take me back</a>.</p>";
|
|
exit(page_renderer::render_main("Theme Gallery - $settings->sitename", $result));
|
|
}
|
|
|
|
$themes_available = [];
|
|
|
|
foreach($gallery_urls as $url) {
|
|
if(empty($url)) continue;
|
|
$next_obj = json_decode(@file_get_contents($url));
|
|
if(empty($next_obj)) {
|
|
http_response_code(503);
|
|
exit(page_renderer::render_main("Error - Theme Gallery - $settings->sitename", "<p>Error: Failed to download theme index file from <code>" . htmlentities($url) . "</code>."));
|
|
}
|
|
|
|
foreach($next_obj as $theme) {
|
|
$theme->index_url = $url;
|
|
$theme->root = dirname($url) . "/{$theme->id}";
|
|
$theme->url = "{$theme->root}/theme.css";
|
|
$theme->preview_large = "{$theme->root}/preview_large.png";
|
|
$theme->preview_small = "{$theme->root}/preview_small.png";
|
|
$themes_available[] = $theme;
|
|
}
|
|
}
|
|
|
|
$sorter = new Collator("");
|
|
usort($themes_available, function($a, $b) use ($sorter) : int {
|
|
return $sorter->compare($a->name, $b->name);
|
|
});
|
|
|
|
|
|
|
|
$content = "<h1>Theme Gallery</h1>
|
|
<p>$settings->sitename is currently using ".(strlen($settings->css_theme_autoupdate_url) > 0 ? "an external" : "the internal")." theme".(strlen($settings->css_theme_autoupdate_url) > 0 ? " (<a href='?action=theme-gallery-select&theme-selector=default-internal'>reset to the internal default theme</a>)" : "").".</p>
|
|
<form method='get' action='index.php'>
|
|
<input type='hidden' name='action' value='theme-gallery-select' />
|
|
<div class='grid-large theme-list'>\n";
|
|
foreach($themes_available as $theme) {
|
|
$selected = $theme->id == $settings->css_theme_gallery_selected_id ? " selected" : "";
|
|
$content .= "<div class='theme-item'>
|
|
<a href='" . htmlentities($theme->preview_large) . "'><img src='" . htmlentities($theme->preview_small) . "' title='Click to enlarge' /></a><br />
|
|
<input type='radio' id='" . htmlentities($theme->id) . "' name='theme-selector' value='" . htmlentities($theme->id) . "' required$selected />
|
|
<label class='link-display-label' for='" . htmlentities($theme->id) . "'>" . htmlentities($theme->name) . "</label>
|
|
<p>" . str_replace("\n", "</p>\n<p>", htmlentities($theme->description)) . "</p>
|
|
<p>By <a href='" . htmlentities($theme->author_link) . "'>" . htmlentities($theme->author) . "</a> (<a href='" . htmlentities($theme->url) . "'>View CSS</a>, <a href='" . htmlentities($theme->index_url) . "'>View Index</a>)
|
|
</div>";
|
|
}
|
|
$content .= "</div>
|
|
<p><strong>Warning: If you've altered $settings->sitename's CSS by changing the value of the <code>css</code> setting, then your changes will be overwritten by clicking the button below! If necessary, move your changes to the <code>css_custom</code> setting first before continuing here.</strong></p>
|
|
<input type='submit' class='large' value='Change Theme' />
|
|
</form>";
|
|
|
|
exit(page_renderer::render_main("Theme Gallery - $settings->sitename", "$content"));
|
|
|
|
});
|
|
|
|
/**
|
|
* @api {get} ?action=theme-gallery-select&theme-selector=theme-id Set the site theme
|
|
* @apiName ThemeGallerySelect
|
|
* @apiGroup Utility
|
|
* @apiPermission Moderator
|
|
*
|
|
* @apiParam {string} theme-selector The id of the theme to switch into, or 'default-internal' to switch back to the internal theme.
|
|
*/
|
|
add_action("theme-gallery-select", function() {
|
|
global $env, $settings, $guiConfig;
|
|
|
|
if(!$env->is_admin) {
|
|
$errorMessage = "<p>You don't have permission to change $settings->sitename's theme.</p>\n";
|
|
if(!$env->is_logged_in)
|
|
$errorMessage .= "<p>You could try <a href='?action=login&returnto=%3Faction%3Dconfigure'>logging in</a>.</p>";
|
|
else
|
|
$errorMessage .= "<p>You could try <a href='?action=logout&returnto=%3Faction%3Dconfigure'>logging out</a> and then <a href='?action=login&returnto=%3Faction%3Dconfigure'>logging in</a> again with a different account that has the appropriate privileges.</a>.</p>";
|
|
exit(page_renderer::render_main("Error - $settings->sitename", $errorMessage));
|
|
}
|
|
|
|
if(!isset($_GET["theme-selector"])) {
|
|
http_response_code(400);
|
|
exit(page_renderer::render_main("No theme selected - Error - $settings->sitename", "<p>Oops! Looks like you didn't select a theme. Try <a href='?action=theme-gallery'>going back</a> and selecting one.</p>"));
|
|
}
|
|
|
|
if($_GET["theme-selector"] === "default-internal") {
|
|
$settings->css_theme_gallery_selected_id = $guiConfig->css_theme_gallery_selected_id->default;
|
|
$settings->css_theme_autoupdate_url = $guiConfig->css_theme_autoupdate_url->default;
|
|
$settings->css = $guiConfig->css->default;
|
|
|
|
if(!save_settings()) {
|
|
http_response_code(503);
|
|
exit(page_renderer::render_main("Server error - $settings->sitename", "<p>Oops! $settings->sitename wasn't able to save the <code>peppermint.json</code> settings file back to disk. If you're the administrator, try checking the permissions on disk. If not, try contacting $settings->sitename's administrator, who's contact details can be found at the bottom of every page.</p>"));
|
|
}
|
|
|
|
exit(page_renderer::render_main("Theme reset - Theme Gallery - $settings->sitename", "<p>$settings->sitename's theme has been reset to the internal theme.</p>
|
|
<p>Go to the <a href='?action=$settings->defaultaction'>homepage</a>.</p>"));
|
|
}
|
|
|
|
// Set the new theme's id
|
|
$settings->css_theme_gallery_selected_id = $_GET["theme-selector"];
|
|
$gallery_urls = explode(" ", $settings->css_theme_gallery_index_url);
|
|
|
|
// Find the URL of the selected theme
|
|
// FUTURE: Figure out a way to pass this information through the UI interface instead to avoid a re-download?
|
|
$theme_autoupdate_url = null;
|
|
foreach($gallery_urls as $url) {
|
|
$next_index = json_decode(@file_get_contents($url));
|
|
if(empty($next_index)) {
|
|
error_log("[PeppermintyWiki/$settings->sitename/theme_gallery] Error: Failed to download theme index file from '$url' when setting the wiki theme.");
|
|
continue;
|
|
}
|
|
foreach($next_index as $next_theme) {
|
|
if($next_theme->id == $settings->css_theme_gallery_selected_id) {
|
|
$theme_autoupdate_url = dirname($url) . "/{$next_theme->id}/theme.css";
|
|
break;
|
|
}
|
|
}
|
|
if($theme_autoupdate_url !== null) break;
|
|
}
|
|
if($theme_autoupdate_url === null) {
|
|
http_response_code(503);
|
|
exit(page_renderer::render_main("[PeppermintyWiki/$settings->sitename/theme_gallery] Failed to set theme - Error - $settings->sitename)", "<p>Oops! $settings->sitename couldn't find the theme you selected. Perhaps it has been changed or deleted, or perhaps there was an error during the download process.</p>
|
|
<p>Try <a href='?action=theme-gallery'>heading back to the theme gallery</a> and trying again.</p>"));
|
|
}
|
|
$settings->css_theme_autoupdate_url = $theme_autoupdate_url;
|
|
|
|
if(!theme_update(true)) {
|
|
http_response_code(503);
|
|
exit(page_renderer::render_main("Failed to download theme - $settings->sitename", "<p>Oops! $settings->sitename wasn't able to download the theme you selected. If you're the administrator, try checking the PHP server logs. If not, try contacting $settings->sitename's administrator, who's contact details can be found at the bottom of every page.</p>"));
|
|
}
|
|
|
|
// TODO: Add option to disable theme updates
|
|
|
|
if(!save_settings()) {
|
|
http_response_code(503);
|
|
exit(page_renderer::render_main("Server error - $settings->sitename", "<p>Oops! $settings->sitename wasn't able to save the <code>peppermint.json</code> settings file back to disk. If you're the administrator, try checking the permissions on disk. If not, try contacting $settings->sitename's administrator, who's contact details can be found at the bottom of every page.</p>"));
|
|
}
|
|
|
|
http_response_code(200);
|
|
exit(page_renderer::render_main("Theme Changed - $settings->sitename", "<p>$settings->sitename's theme was changed successfully to $settings->css_theme_gallery_selected_id.</p>
|
|
<p>Go to the <a href='?action=$settings->defaultaction'>homepage</a>.</p>"));
|
|
});
|
|
|
|
// TODO: Fill this in properly
|
|
add_help_section("26-random-redirect", "Jumping to a random page", "<p>$settings->sitename has a function that can send you to a random page. To use it, click <a href='?action=random'>here</a>. $settings->admindetails_name ($settings->sitename's adminstrator) may have added it to one of the menus.</p>");
|
|
}
|
|
]);
|
|
|
|
/**
|
|
* Updates the currently selected theme by fetching it from a remote url.
|
|
* @param bool $force_update Whether to force an update - even if we've already updated recently.
|
|
* @return bool Whether the update was sucessful. It might fail because of network issues, or the theme update requires a newer version of Pepperminty Wiki than is currently installed.
|
|
*/
|
|
function theme_update($force_update = false) : bool {
|
|
global $version, $settings;
|
|
|
|
// If there's no url to update from or updates are disabled, then we're done here
|
|
if(empty($settings->css_theme_autoupdate_url) || $settings->css_theme_autoupdate_interval < 0)
|
|
return true;
|
|
|
|
// If it's not time for an update, then end here
|
|
// ...unless we're supposed to force an update
|
|
if(time() - $settings->css_theme_autoupdate_lastcheck < $settings->css_theme_autoupdate_interval || !$force_update)
|
|
return true;
|
|
|
|
// Fetch the new css
|
|
$new_css = @file_get_contents($settings->css_theme_autoupdate_url);
|
|
// Make sure it's valid
|
|
if(empty($new_css)) {
|
|
error_log("[PeppermintyWiki/$settings->sitename/theme_gallery] Error: Failed to update theme: Got an error while trying to download theme update from $settings->css_theme_autoupdate_url");
|
|
return false;
|
|
}
|
|
|
|
// TODO: Check the hash against themeindex.json?
|
|
|
|
$min_version_loc = strpos($new_css, "@minversion") + strlen("@minversion");
|
|
$min_version = substr($new_css, $min_version_loc, strpos($new_css, "\n", $min_version_loc));
|
|
if(version_compare($version, $min_version) == -1) {
|
|
error_log("[PeppermintyWiki/$settings->sitename/theme_gallery] Error: Failed to update theme: $settings->css_theme_gallery_selected_id requires Pepperminty Wiki $min_version, but $version is installed.");
|
|
return false;
|
|
}
|
|
|
|
// If the css is identical to the string we've got stored already, then no point in updating
|
|
if($new_css == $settings->css)
|
|
return true;
|
|
|
|
$settings->css = $new_css;
|
|
|
|
return save_settings();
|
|
}
|
|
|
|
?>
|