package update

[friendica-addons.git] / nsfw / nsfw.php

diff --git a/nsfw/nsfw.php b/nsfw/nsfw.php
index 41799f14ef88623ccab7c47f156581c8fabf1e99..08e19195ce95a8ea4088d33eaf81e8048650b8b3 100755 (executable)
--- a/nsfw/nsfw.php
+++ b/nsfw/nsfw.php
@@ -10,7 +10,7 @@
  */
 
 function nsfw_install() {
-       register_hook('prepare_body', 'addon/nsfw/nsfw.php', 'nsfw_prepare_body');
+       register_hook('prepare_body', 'addon/nsfw/nsfw.php', 'nsfw_prepare_body', 10);
        register_hook('plugin_settings', 'addon/nsfw/nsfw.php', 'nsfw_addon_settings');
        register_hook('plugin_settings_post', 'addon/nsfw/nsfw.php', 'nsfw_addon_settings_post');
 
@@ -24,6 +24,37 @@ function nsfw_uninstall() {
 
 }
 
+// This function isn't perfect and isn't trying to preserve the html structure - it's just a 
+// quick and dirty filter to pull out embedded photo blobs because 'nsfw' seems to come up 
+// inside them quite often. We don't need anything fancy, just pull out the data blob so we can
+// check against the rest of the body. 
+ 
+function nsfw_extract_photos($body) {
+
+       $new_body = '';
+       
+       $img_start = strpos($body,'src="data:');
+       $img_end = (($img_start !== false) ? strpos(substr($body,$img_start),'>') : false);
+
+       $cnt = 0;
+
+       while($img_end !== false) {
+               $img_end += $img_start;
+               $new_body = $new_body . substr($body,0,$img_start);
+       
+               $cnt ++;
+               $body = substr($body,0,$img_end);
+
+               $img_start = strpos($body,'src="data:');
+               $img_end = (($img_start !== false) ? strpos(substr($body,$img_start),'>') : false);
+
+       }
+
+       if(! $cnt)
+               return $body;
+
+       return $new_body;
+}
 
 
 
@@ -44,9 +75,9 @@ function nsfw_addon_settings(&$a,&$s) {
                $words = 'nsfw,';
 
     $s .= '<div class="settings-block">';
-    $s .= '<h3>' . t('Content Filter Settings') . '</h3>';
+    $s .= '<h3>' . t('Not Safe For Work (General Purpose Content Filter) settings') . '</h3>';
     $s .= '<div id="nsfw-wrapper">';
-       
+    $s .= '<p>' . t ('This plugin looks in posts for the words/text you specify below, and collapses any content containing those keywords so it is not displayed at inappropriate times, such as sexual innuendo that may be improper in a work setting. It is polite and recommended to tag any content containing nudity with #NSFW.  This filter can also match any other word/text you specify, and can thereby be used as a general purpose content filter.') . '</p>';
     $s .= '<label id="nsfw-enable-label" for="nsfw-enable">' . t('Enable Content filter') . ' </label>';
     $s .= '<input id="nsfw-enable" type="checkbox" name="nsfw-enable" value="1"' . $enable_checked . ' />';
        $s .= '<div class="clear"></div>';
@@ -77,6 +108,7 @@ function nsfw_addon_settings_post(&$a,&$b) {
 
 function nsfw_prepare_body(&$a,&$b) {
 
+
        $words = null;
        if(get_pconfig(local_user(),'nsfw','disable'))
                return;
@@ -93,18 +125,22 @@ function nsfw_prepare_body(&$a,&$b) {
 
        $found = false;
        if(count($arr)) {
+
+               $body = $b['item']['title'] . "\n" . nsfw_extract_photos($b['html']);
+
                foreach($arr as $word) {
-                       if(! strlen(trim($word))) {
+                       $word = trim($word);
+                       if(! strlen($word)) {
                                continue;
                        }
                        if(strpos($word,'/') === 0) {
-                               if(preg_match($word,$b['html'])) {
+                               if(preg_match($word,$body)) {
                                        $found = true;
                                        break;
                                }
                        }
                        else {
-                               if(stristr($b['html'],$word)) {
+                               if(stristr($body,$word)) {
                                        $found = true;
                                        break;
                                }
@@ -114,6 +150,7 @@ function nsfw_prepare_body(&$a,&$b) {
                                }
                        } 
                }
+               
        }
        if($found) {
                $rnd = random_string(8);