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