272 lines
16 KiB
PHP
Executable File
272 lines
16 KiB
PHP
Executable File
<?php
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/*
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@name Adblock
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@author Phyks <phyks@phyks.me>
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@link http://www.phyks.me
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@licence BEERWARE (See README.md file)
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@version 2.0.0
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@description The adblock plugin for leed allows to block embedded flash contents and / or images in feeds. You can set it fine-grained for each feed. You can also disable images only for mobile devices.
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*/
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function adblock_isMobileDevice() {
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return preg_match("/(android|avantgo|blackberry|bolt|boost|cricket|docomo|fone|hiptop|mini|mobi|palm|phone|pie|tablet|up\.browser|up\.link|webos|wos)/i", $_SERVER["HTTP_USER_AGENT"]);
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}
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function adblock_trim_list($input) {
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$output = array();
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foreach($input as $key=>$value) {
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$output[$key] = trim($value, "\t\n\r\0\x0B,\"");
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}
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return $output;
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}
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function adblock_plugin_treat_events(&$events) {
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//Set params
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$configurationManager = new Configuration();
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$partial = $configurationManager->get('articleView') == "partial";
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$adblock_constants = file_get_contents("adblock_constants.php");
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$adblock_constants = explode("\n", $adblock_constants);
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$adblock_params = array();
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foreach($adblock_constants as $adblock_constant) {
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if(trim($adblock_constant) != "") {
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$adblock_constant = explode("=", $adblock_constant);
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$adblock_params[trim($adblock_constant[0])] = trim($adblock_constant[1]);
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}
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}
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if(isset($adblock_params["flash_enabled"]) && $adblock_params["flash_enabled"] == "1") {
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$filter_flash = true;
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if(isset($adblock_params["flash_block"]) && $adblock_params["flash_block"] == "1") {
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$block_flash = true;
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}
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else {
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$block_flash = false;
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}
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}
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else {
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$filter_flash = false;
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}
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$flash_except_list = explode(',', trim($adblock_params["flash_list"], "\t\n\r\0\x0B,"));
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$flash_except_list = adblock_trim_list($flash_except_list);
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if(isset($adblock_params["img_enabled"]) && $adblock_params["img_enabled"] == "1") {
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$filter_img = true;
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if(isset($adblock_params["img_block"]) && $adblock_params["img_block"] == "1") {
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$block_img = true;
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}
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else {
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$block_img = false;
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}
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if(isset($adblock_params["img_only_mobiles"]) && $adblock_params["img_only_mobiles"] == "1" && !adblock_isMobileDevice()) { //If filter only on mobile devices and not a mobile device
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$filter_img = false;
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}
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}
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else {
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$filter_img = false;
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}
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$img_except_list = explode(',', trim($adblock_params["img_list"], "\t\n\r\0\x0B,"));
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$img_except_list = adblock_trim_list($flash_except_list);
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$elegant_degradation = (isset($adblock_params["elegant_degradation"]) && $adblock_params["elegant_degradation"] == "1") ? true : false;
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foreach($events as $event) {
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$filtered_content = ($partial) ? $event->getDescription : $event->getContent();
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$modified = false;
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// Flash handling
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if($filter_flash) {
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if(($block_flash && !in_array($event->getFeed(), $flash_except_list)) || (!$block_flash && in_array($event->getFeed(), $flash_except_list))) {
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//Replace flash content
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preg_match_all("#<iframe.{0,}/(iframe)?>#U", $filtered_content, $object_list_in_event, PREG_SET_ORDER);
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foreach($object_list_in_event as $object) {
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if(!$elegant_degradation) {
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$replacement_content = '
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<span class="blocked_flash" onclick="return adblock_unblock_flash(this, \''.htmlspecialchars($object[0]).'\');">X</span>
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';
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$filtered_content = str_replace($object[0], $replacement_content, $filtered_content);
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}
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else {
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preg_match("#width=[\"']([0-9]{1,})[\"']#U", $object[0], $width);
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preg_match("#height=[\"']([0-9]{1,})[\"']#U", $object[0], $height);
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$font_size = min($width[1], $height[1]);
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$replacement_content = '
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<span class="blocked_flash" '.((!empty($width[1]) && !empty($height[1])) ? 'style="width: '.$width[1].'px; height: '.$height[1].'px; padding: 0; padding-top: '.((int) $font_size) / 2 .'px; box-sizing: border-box; -moz-box-sizing: border-box; -webkit-box-sizing: border-box; font-size: '.$font_size.'px;"' : '').' onclick="return adblock_unblock_flash(this, \''.htmlspecialchars($object[0]).'\');">X</span>
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';
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$filtered_content = str_replace($object[0], $replacement_content, $filtered_content);
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}
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}
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$modified = true;
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}
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}
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// Images handling
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if($filter_img) {
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if(($block_img && !in_array($event->getFeed(), $img_except_list)) || (!$block_img && in_array($event->getFeed(), $img_except_list))) {
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//Replace images
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preg_match_all("#<img.{0,}src=[\"'](.{1,})[\"'].{0,}/?(img)?>#U", $filtered_content, $img_list_in_event, PREG_SET_ORDER);
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foreach($img_list_in_event as $img) {
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if(!$elegant_degradation) {
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$replacement_content = '
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<span class="blocked_image" onclick="return adblock_unblock_img(this, \''.urlencode($img[1]).'\');">X</span>
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';
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$filtered_content = str_replace($img[0], $replacement_content, $filtered_content);
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}
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else {
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$content_size = getimagesize($img[1]); //Index 0 is width, index 1 is height
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$font_size = min($content_size[0], $content_size[1]);
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$replacement_content = '
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<span class="blocked_image" style="width:'.(int) $content_size[0].'px; height:'.(int) $content_size[1].'px; padding:0; padding-top: '.((int) $font_size) / 2 .'px; box-sizing: border-box; -moz-box-sizing: border-box; -webkit-box-sizing: border-box; font-size: '.$font_size.'px;" onclick="return adblock_unblock_img(this, \''.urlencode($img[1]).'\'):">X</span>
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';
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$filtered_content = str_replace($img[0], $replacement_content, $filtered_content);
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}
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}
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$modified = true;
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}
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}
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if($modified) {
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if($partial)
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$event->setDescription($filtered_content);
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else
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$event->setContent($filtered_content);
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}
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}
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}
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function adblock_plugin_setting_link(&$myUser) {
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echo '
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<li class="pointer" onclick="$(\'#main section\').hide();$(\'#main #adblockSettingsBloc\').fadeToggle(200);">Adblock</li>';
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}
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function adblock_plugin_setting_bloc(&$myUser) {
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$adblock_constants = file_get_contents('adblock_constants.php');
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$adblock_constants = explode("\n", $adblock_constants);
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$adblock_params = array();
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foreach($adblock_constants as $adblock_constant) {
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if(trim($adblock_constant) != "") {
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$adblock_constant = explode("=", $adblock_constant);
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$adblock_params[trim($adblock_constant[0])] = trim($adblock_constant[1]);
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}
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}
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$flash_enabled = (isset($adblock_params["flash_enabled"]) && $adblock_params["flash_enabled"] == "1") ? true : false;
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$flash_block = (isset($adblock_params["flash_block"]) && $adblock_params["flash_block"] == "1") ? true : false;
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if(isset($adblock_params["flash_list"]))
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$flash_list = str_replace(",", "\n", trim($adblock_params["flash_list"], "\t\n\r\0\x0B,"));
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else
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$flash_list = "";
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$img_enabled = (isset($adblock_params["img_enabled"]) && $adblock_params["img_enabled"] == "1") ? true : false;
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$img_only_mobiles = (isset($adblock_params["img_only_mobiles"]) && $adblock_params["img_only_mobiles"] == 1) ? true : false;
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$img_block = (isset($adblock_params["img_block"]) && $adblock_params["img_block"] == "1") ? true : false;
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if(isset($adblock_params["img_list"]))
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$img_list = str_replace(",", "\n", trim($adblock_params["img_list"], "\t\n\r\0\x0B,"));
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else
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$img_list = "";
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$elegant_degradation = (isset($adblock_params["elegant_degradation"]) && $adblock_params["elegant_degradation"] == "1") ? true : false;
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$getimagesize_available = function_exists("getimagesize") && ((ini_get("allow_url_fopen") == "1") ? true : false);
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echo '
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<section id="adblockSettingsBloc">
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<form action="action.php?action=adblock_update" method="POST">
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<h2>Plugin Adblock</h2>
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<p><em>Note : </em><br/>
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You must enter a list of id of feeds in the blacklist / whitelist fields. This list must be one id per line. You can find the id of the feed you want in the address bar on the page of the feed in Leed (http://LEED_URL/index.php?action=selectedFeed&feed=ID).</p>
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<fieldset>
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<div class="flash_adblockSettingsBlock">
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<h3>Flash embedded contents :</h3>
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<p>
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Enable / Disable blocking of flash contents in events :<br/>
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<input type="radio" name="flash_adblock_enable" value="1" id="flash_adblock_block_enabled" '.(($flash_enabled) ? 'checked="checked"' : '').'/><label for="flash_adblock_block_enabled">Enabled</label><br/>
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<input type="radio" name="flash_adblock_enable" value="0" id="flash_adblock_block_disable" '.((!$flash_enabled) ? 'checked="checked"' : '').'/> <label for="flash_adblock_block_disable">Disabled</label>
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</p>
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<p>Default behavior :<br/>
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<input type="radio" name="flash_adblock_default_behavior" value="1" id="flash_adblock_blockall" onchange="adblock_whitelist_blacklist(\'adblock_flash_whitelist_blacklist\', 1);" '.(($flash_block) ? 'checked="checked"' : '').'/><label for="flash_adblock_blockall">Block all contents (and use a whitelist)</label><br/>
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<input type="radio" name="flash_adblock_default_behavior" value="0" id="flash_adblock_allowall" onchange="adblock_whitelist_blacklist(\'adblock_flash_whitelist_blacklist\', 0);" '.((!$flash_block) ? 'checked="checked"' : '').'/><label for="flash_adblock_allowall">Allow all contents (and use a blacklist)</label>
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</p>
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<p><span id="adblock_flash_whitelist_blacklist">'.(($flash_block) ? 'Whitelist :' : 'Blacklist :').'</span></br>
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<textarea name="flash_adblock_list" rows="7">'.$flash_list.'</textarea>
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</div>
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</fieldset>
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<fieldset>
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<div class="img_adblockSettingsBlock">
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<h3>Images :</h3>
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<p>
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Enable / Disable blocking of images in events :<br/>
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<input type="radio" name="img_adblock_enable" value="1" id="img_adblock_block_enabled" '.(($img_enabled) ? 'checked="checked"' : '').'/><label for="img_adblock_block_enabled">Enabled</label><br/>
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<input type="radio" name="img_adblock_enable" value="0" id="img_adblock_block_disable" '.((!$img_enabled) ? 'checked="checked"' : '').'/> <label for="img_adblock_block_disable">Disabled</label>
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</p>
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<p>Default behavior :<br/>
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<input type="radio" name="img_adblock_default_behavior" value="1" id="img_adblock_blockall" onchange="adblock_whitelist_blacklist(\'adblock_img_whitelist_blacklist\', 1);" '.(($img_block) ? 'checked="checked"' : '').'/><label for="img_adblock_blockall">Block all contents (and use a whitelist)</label><br/>
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<input type="radio" name="img_adblock_default_behavior" value="0" id="img_adblock_allowall" onchange="adblock_whitelist_blacklist(\'adblock_img_whitelist_blacklist\', 0);" '.((!$img_block) ? 'checked="checked"' : '').'/><label for="img_adblock_allowall">Allow all contents (and use a blacklist)</label>
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</p>
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<p>Block images only on mobile devices ?<br/>
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<input type="radio" name="img_adblock_only_mobiles" value="1" id="img_adblock_only_mobiles_yes" '.(($img_only_mobiles) ? 'checked="checked"' : '').'/><label for="img_adblock_only_mobiles_yes">Only block images on mobile devices</label><br/>
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<input type="radio" name="img_adblock_only_mobiles" value="0" id="img_adblock_only_mobiles_no" '.((!$img_only_mobiles) ? 'checked="checked"' : '').'/><label for="img_adblock_only_mobiles_no">Block images on all devices</label>
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</p>
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<p><span id="adblock_img_whitelist_blacklist">'.(($img_block) ? 'Whitelist :' : 'Blacklist :').'</span></br>
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<textarea name="img_adblock_list" rows="7">'.$img_list.'</textarea>
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</div>
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</fieldset>
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<p>
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Elegant degradation (replace content with same-size content) ?<br/>
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<input type="radio" name="adblock_elegant_degradation" value="1" id="adblock_elegant_degradation_yes" '.(($elegant_degradation) ? 'checked="checked"' : '').' '.((!$getimagesize_available) ? 'disabled' : '').'/><label for="adblock_elegant_degradation_yes">Yes</label>'.((!$getimagesize_available) ? ' <em>(Not available because the getimagesize seems to not be available on your system or allow_url_fopen is set to Off in php.ini)</em>' : '').'<br/>
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<input type="radio" name="adblock_elegant_degradation" value="0" id="adblock_elegant_degradation_no" '.((!$elegant_degradation) ? 'checked="checked"' : '').'/><label for="adblock_elegant_degradation_no">No</label>
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</p>
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<p id="adblock_settings_submit">
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<input type="submit" class="button" value="Save"/>
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</p>
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</form>
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</section>';
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}
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function adblock_plugin_setting_update($_) {
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if($_['action'] == 'adblock_update') {
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$flash_enabled = (int) $_['flash_adblock_enable'];
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$flash_block = (int) $_['flash_adblock_default_behavior'];
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$flash_list = str_replace("\r\n", ",", trim($_["flash_adblock_list"]));
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$flash_list = str_replace("\n", ",", trim($flash_list));
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$img_enabled = (int) $_['img_adblock_enable'];
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$img_block = (int) $_['img_adblock_default_behavior'];
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$img_only_mobiles = (int) $_["img_adblock_only_mobiles"];
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$img_list = str_replace("\r\n", ",", trim($_["img_adblock_list"]));
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$img_list = str_replace("\n", ",", trim($img_list));
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$elegant_degradation = (int) $_["adblock_elegant_degradation"];
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if(file_put_contents("adblock_constants.php", "flash_enabled = ".$flash_enabled."\nflash_block = ".$flash_block."\nflash_list = ".$flash_list."\nimg_enabled = ".$img_enabled."\nimg_block = ".$img_block."\nimg_only_mobiles = ".$img_only_mobiles."\nimg_list = ".$img_list."\nelegant_degradation = ".$elegant_degradation))
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header('location: settings.php');
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else
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exit("Unable to write parameters to adblock_constants.php. Check permissions on the folders.");
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}
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}
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Plugin::addCSS("/css/adblock_plugin_css.css");
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Plugin::addJS("/js/adblock_plugin_js.js");
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Plugin::addHook("index_post_treatment", "adblock_plugin_treat_events");
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Plugin::addHook("setting_post_link", "adblock_plugin_setting_link");
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Plugin::addHook("setting_post_section", "adblock_plugin_setting_bloc");
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Plugin::addHook("action_post_case", "adblock_plugin_setting_update");
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?>
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