Embed image data in the generated HTML we cache.

This lets email archives display it inline, and also makes sure we don't lose the data if it vanishes or changes.
icculus · Jul 18, 2014 · d92bf4c · d92bf4c
1 parent a5d501b
commit d92bf4c
Showing 1 changed file with 25 additions and 1 deletion.
diff --git a/cachetweets.php b/cachetweets.php
@@ -3,6 +3,27 @@
 require_once('twitteroauth/twitteroauth.php');
 require_once('config.php');
 
+function embed_img_url($mediaurl)
+{
+    $imgdata = false;
+    $imgtype = (strlen($mediaurl) > 4) ? strtolower(substr($mediaurl, -4)) : '';
+    if (($imgtype == '.jpg') || ($imgtype == '.png') || ($imgtype == '.gif'))
+    {
+        $imgdata = file_get_contents($mediaurl);
+        $imgtype = substr($imgtype, 1);
+    }
+
+    if ($imgdata !== false)
+    {
+        $mediaurl = "data:image/$imgtype;base64," . base64_encode($imgdata);
+        unset($imgdata);
+    }
+
+    return $mediaurl;
+}
+
+
+
 $cachedir = './cache';
 if (!file_exists($cachedir))
     mkdir($cachedir);
@@ -149,6 +170,7 @@
                 $mediaurl = isset($item->media_url_https) ? $item->media_url_https : $item->media_url;
                 if ($item->type == "photo")
                 {
+                    $mediaurl = embed_img_url($mediaurl);
                     $mediahtml = $mediahtml . "<img src='$mediaurl' style='max-width:375px;'/><br/>";
                     $text = str_replace($item->url, $item->display_url, $text, $temp = 1);
                     $html = str_replace($item->url, "<a href='{$item->expanded_url}'>{$item->display_url}</a>", $html, $temp = 1);
@@ -183,10 +205,12 @@
         $tweet->origtext = $tweet->text;
     $tweet->text = $text;
 
+    $profile_img_url = embed_img_url($tweet->user->profile_image_url);
+
     $tweet->html = <<<EOS
 <div style="padding-bottom:25px;padding-left:50px;padding-right:50px;padding-top:5px;">
   <table><tr>
-    <td><img style="width:48px; height:48px;" src='{$tweet->user->profile_image_url}'/></td>
+    <td><img style="width:48px; height:48px;" src='$profile_img_url'/></td>
     <td>
       <span style="font-family:'Helvetica Neue', Arial, sans-serif;font-size:18px;font-weight:bold;color:#333;text-decoration:none;display:block;">
         {$tweet->user->name}