include/plaintext.php

   1 <?php
   2 function get_attached_data($body) {
   3 /*
   4  - text:
   5  - type: link, video, photo
   6  - title:
   7  - url:
   8  - image:
   9  - description:
  10  - (thumbnail)
  11 */
  12
  13         // Simplify image codes
  14         $body = preg_replace("/\[img\=([0-9]*)x([0-9]*)\](.*?)\[\/img\]/ism", '[img]$3[/img]', $body);
  15
  16         $post = array();
  17
  18         if (preg_match_all("(\[class=(.*?)\](.*?)\[\/class\])ism",$body, $attached,  PREG_SET_ORDER)) {
  19                 foreach ($attached AS $data) {
  20                         if (!in_array($data[1], array("type-link", "type-video", "type-photo")))
  21                                 continue;
  22
  23                         $post["type"] = substr($data[1], 5);
  24
  25                         $post["text"] = trim(str_replace($data[0], "", $body));
  26
  27                         $attacheddata = $data[2];
  28
  29                         $URLSearchString = "^\[\]";
  30
  31                         if (preg_match("/\[img\]([$URLSearchString]*)\[\/img\]/ism", $attacheddata, $matches))
  32                                 $post["image"] = $matches[1];
  33
  34                         if (preg_match("/\[bookmark\=([$URLSearchString]*)\](.*?)\[\/bookmark\]/ism", $attacheddata, $matches)) {
  35                                 $post["url"] = $matches[1];
  36                                 $post["title"] = $matches[2];
  37                         }
  38
  39                         // Search for description
  40                         if (preg_match("/\[quote\](.*?)\[\/quote\]/ism", $attacheddata, $matches))
  41                                 $post["description"] = $matches[1];
  42
  43                 }
  44         }
  45
  46         // if nothing is found, it maybe having an image.
  47         if (!isset($post["type"])) {
  48                 require_once("mod/parse_url.php");
  49
  50                 $URLSearchString = "^\[\]";
  51                 if (preg_match_all("(\[url=([$URLSearchString]*)\]\s*\[img\]([$URLSearchString]*)\[\/img\]\s*\[\/url\])ism", $body, $pictures,  PREG_SET_ORDER)) {
  52                         if (count($pictures) == 1) {
  53                                 // Checking, if the link goes to a picture
  54                                 $data = parseurl_getsiteinfo($pictures[0][1], true);
  55
  56                                 if ($data["type"] == "photo") {
  57                                         $post["type"] = "photo";
  58                                         if (isset($data["images"][0]))
  59                                                 $post["image"] = $data["images"][0]["src"];
  60                                         else
  61                                                 $post["image"] = $data["url"];
  62
  63                                         $post["preview"] = $pictures[0][2];
  64                                         $post["text"] = str_replace($pictures[0][0], "", $body);
  65                                 } else {
  66                                         $img_str = fetch_url($pictures[0][1]);
  67
  68                                         $tempfile = tempnam(get_config("system","temppath"), "cache");
  69                                         file_put_contents($tempfile, $img_str);
  70                                         $mime = image_type_to_mime_type(exif_imagetype($tempfile));
  71                                         unlink($tempfile);
  72                                         if (substr($mime, 0, 6) == "image/") {
  73                                                 $post["type"] = "photo";
  74                                                 $post["image"] = $pictures[0][1];
  75                                                 $post["preview"] = $pictures[0][2];
  76                                                 $post["text"] = str_replace($pictures[0][0], "", $body);
  77                                         }
  78                                 }
  79                         } elseif (count($pictures) > 1) {
  80                                 $post["type"] = "link";
  81                                 $post["url"] = $b["plink"];
  82                                 $post["image"] = $pictures[0][2];
  83                                 $post["text"] = $body;
  84                         }
  85                 } elseif (preg_match_all("(\[img\]([$URLSearchString]*)\[\/img\])ism", $body, $pictures,  PREG_SET_ORDER)) {
  86                         if (count($pictures) == 1) {
  87                                 $post["type"] = "photo";
  88                                 $post["image"] = $pictures[0][1];
  89                                 $post["text"] = str_replace($pictures[0][0], "", $body);
  90                         } elseif (count($pictures) > 1) {
  91                                 $post["type"] = "link";
  92                                 $post["url"] = $b["plink"];
  93                                 $post["image"] = $pictures[0][1];
  94                                 $post["text"] = $body;
  95                         }
  96                 }
  97                 if (!isset($post["type"])) {
  98                         $post["type"] = "text";
  99                         $post["text"] = trim($body);
 100                 }
 101         }
 102
 103         return($post);
 104 }
 105
 106 function shortenmsg($msg, $limit, $twitter = false) {
 107         // To-Do:
 108         // For Twitter URLs aren't shortened, but they have to be calculated as if.
 109
 110         $lines = explode("\n", $msg);
 111         $msg = "";
 112         $recycle = html_entity_decode("&#x2672; ", ENT_QUOTES, 'UTF-8');
 113         foreach ($lines AS $row=>$line) {
 114                 if (iconv_strlen(trim($msg."\n".$line), "UTF-8") <= $limit)
 115                         $msg = trim($msg."\n".$line);
 116                 // Is the new message empty by now or is it a reshared message?
 117                 elseif (($msg == "") OR (($row == 1) AND (substr($msg, 0, 4) == $recycle)))
 118                         $msg = substr(substr(trim($msg."\n".$line), 0, $limit), 0, -3)."...";
 119                 else
 120                         break;
 121         }
 122         return($msg);
 123 }
 124
 125 function plaintext($a, $b, $limit = 0, $includedlinks = false, $htmlmode = 2) {
 126         require_once("include/bbcode.php");
 127         require_once("include/html2plain.php");
 128         require_once("include/network.php");
 129
 130         // At first look at data that is attached via "type-..." stuff
 131         // This will hopefully replaced with a dedicated bbcode later
 132         $post = get_attached_data($b["body"]);
 133
 134         if (($b["title"] != "") AND ($post["text"] != ""))
 135                 $post["text"] = trim($b["title"]."\n\n".$post["text"]);
 136         elseif ($b["title"] != "")
 137                 $post["text"] = trim($b["title"]);
 138
 139         $html = bbcode($post["text"], false, false, $htmlmode);
 140         $msg = html2plain($html, 0, true);
 141         $msg = trim(html_entity_decode($msg,ENT_QUOTES,'UTF-8'));
 142
 143         $link = "";
 144         if ($includedlinks) {
 145                 if ($post["type"] == "link")
 146                         $link = $post["url"];
 147                 elseif ($post["type"] == "video")
 148                         $link = $post["url"];
 149                 elseif ($post["type"] == "photo")
 150                         $link = $post["image"];
 151
 152                 if (($msg == "") AND isset($post["title"]))
 153                         $msg = trim($post["title"]);
 154
 155                 if (($msg == "") AND isset($post["description"]))
 156                         $msg = trim($post["description"]);
 157
 158                 // If the link is already contained in the post, then it neeedn't to be added again
 159                 // But: if the link is beyond the limit, then it has to be added.
 160                 if (($link != "") AND strstr($msg, $link)) {
 161                         $pos = strpos($msg, $link);
 162                         if (($limit == 0) OR ($pos < $limit))
 163                                 $link = "";
 164                 }
 165         }
 166
 167         if ($limit > 0) {
 168                 // Reduce multiple spaces
 169                 // When posted to a network with limited space, we try to gain space where possible
 170                 while (strpos($msg, "  ") !== false)
 171                         $msg = str_replace("  ", " ", $msg);
 172
 173                 // Twitter is using its own limiter, so we always assume that shortened links will have this length
 174                 if (strlen($link) > 0)
 175                         $limit = $limit - 23;
 176
 177                 if (strlen($msg) > $limit) {
 178
 179                         if (!isset($post["url"])) {
 180                                 $limit = $limit - 23;
 181                                 $post["url"] = $b["plink"];
 182                         }
 183
 184                         $msg = shortenmsg($msg, $limit);
 185                 }
 186         }
 187
 188         $post["text"] = trim($msg);
 189
 190         return($post);
 191 }
 192 ?>