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Implement some theme update logic, but it's unfinished.

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This commit is contained in:
Starbeamrainbowlabs 2019-09-01 21:18:14 +01:00
parent f39f7b5954
commit e708220bc6
Signed by: sbrl
GPG key ID: 1BE5172E637709C2
6 changed files with 75 additions and 7 deletions
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2
module_index.json
View file

@ -155,7 +155,7 @@
"version": "0.1",
"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.",
"lastupdate": 1567107944,
"lastupdate": 1567366716,
"optional": false,
"extra_data": []
},

73
modules/feature-theme-gallery.php
View file

@ -30,8 +30,8 @@ register_module([
$gallery_urls = explode(" ", $settings->css_theme_gallery_index_url);
foreach($gallery_urls as $url) {
if(empty($url)) continue;
$next_obj = json_decode(file_get_contents($url));
if($next_obj === null) {
$next_obj = json_decode(@file_get_contents($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>."));
}
@ -59,7 +59,7 @@ register_module([
$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($theme->id) . "'$selected />
<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>)
@ -73,8 +73,75 @@ register_module([
});
add_action("theme-gallery-select", function() {
global $env, $settings;
if(!$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>"));
}
// Set the new theme's id
$settings->css_theme_gallery_selected_id = $_GET["theme-selector"];
// TODO: Set the autoupdate_url here
// 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 $settings->sitename's administrator, who's contact details can be found at the bottom of every page.</p>"));
}
});
add_help_section("26-random-redirect", "Jumping to a random page", "<p>$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>");
}
]);
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($new_css)) {
error_log("[Pepperminty Wiki/$settings->sitename] 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, $min_version) == -1) {
error_log("[Pepperminty Wiki/$settings->sitename] 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;
}
?>

1
peppermint.guiconfig.json
View file

@ -188,6 +188,7 @@
"disable_peppermint_access_check": { "type": "checkbox", "description": "Disables the access check for peppermint.json on first-run. <strong>VERY DANGEROUS</strong>. Use only for development. Note that it's recommend to block access to peppermint.json for a reason - it contains your site secret and password hashes, so an attacker could do all <em>sorts</em> of nefarious things if it's left unblocked.", "default": false },
"css_theme_autoupdate_url": { "type": "url", "description": "A url that points to the css theme file to check for updates. If blank, then automatic updates are disabled.", "default": "" },
"css_theme_autoupdate_interval": { "type": "number", "description": "The interval, in seconds, that updates to the theme should be checked for. Defaults to every week. A value of -1 disables automatic updates.", "default": 604800 },
"css_theme_autoupdate_lastcheck": { "type": "number", "description": "The timestamp of the last time that updates for the selected theme were last checked for. To disable automatic updates, you should set <code>css_theme_autoupdate_interval</code> to <code>-1</code> instead of changing this setting.", "default": 0 },
"css_theme_gallery_index_url": { "type": "text", "description": "A url that points to an index file that contains a list of themes. Used to populate the gallary. Multiple urls are allowed - separate them with a space.", "default": "https://starbeamrainbowlabs.com/labs/peppermint/themes/themeindex.php" },
"css_theme_gallery_selected_id": { "type": "text", "description": "The id of the currently selected theme. Defaults to the internal default theme.", "default": "default" },
"css": { "type": "textarea", "description": "A string of css to include. Will be included in the &lt;head&gt; of every page inside a &lt;style&gt; tag. This may also be an absolute url - urls will be referenced via a &lt;link rel='stylesheet' /&gt; tag. If the theme gallery is installed and automatic updates enabled, then the value of this property is managed by the theme gallery and changes may be overwritten (try the css_custom setting instead).", "default": "auto" },

2
themes/blue/theme.css
View file

@ -4,7 +4,7 @@
* @description A more blue theme.
* @author ZestyclosePainting
* @author_link https://reddit.com/u/ZestyclosePainting
* @minversion 0.20
* @minversion v0.20
*
* "A more blue theme for pepperminty if anyone's interested."
* By u/ZestyclosePainting on Reddit: https://www.reddit.com/user/ZestyclosePainting/

2
themes/default/theme.css
View file

@ -4,7 +4,7 @@
* @description The default theme.
* @author Starbeamrainbowlabs
* @author_link https://starbeamrainbowlabs.com/
* @minversion 0.20
* @minversion v0.20
*/
:root {

2
themes/none/theme.css
View file

@ -4,5 +4,5 @@
* @description A special theme with no CSS. Useful if you want to create your own theme from scratch!
* @author Starbeamrainbowlabs
* @author_link https://starbeamrainbowlabs.com/
* @minversion 0.20
* @minversion v0.20
*/