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items.php 78KB

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  1. <?php
  2. /**
  3. * @file include/items.php
  4. */
  5. use Friendica\ParseUrl;
  6. require_once 'include/bbcode.php';
  7. require_once 'include/oembed.php';
  8. require_once 'include/salmon.php';
  9. require_once 'include/crypto.php';
  10. require_once 'include/Photo.php';
  11. require_once 'include/tags.php';
  12. require_once 'include/files.php';
  13. require_once 'include/text.php';
  14. require_once 'include/email.php';
  15. require_once 'include/threads.php';
  16. require_once 'include/socgraph.php';
  17. require_once 'include/plaintext.php';
  18. require_once 'include/ostatus.php';
  19. require_once 'include/feed.php';
  20. require_once 'include/Contact.php';
  21. require_once 'mod/share.php';
  22. require_once 'include/enotify.php';
  23. require_once 'include/dfrn.php';
  24. require_once 'include/group.php';
  25. /// @TODO one day with composer autoloader no more needed
  26. require_once 'library/defuse/php-encryption-1.2.1/Crypto.php';
  27. function construct_verb($item) {
  28. if ($item['verb']) {
  29. return $item['verb'];
  30. }
  31. return ACTIVITY_POST;
  32. }
  33. /* limit_body_size()
  34. *
  35. * The purpose of this function is to apply system message length limits to
  36. * imported messages without including any embedded photos in the length
  37. */
  38. if (! function_exists('limit_body_size')) {
  39. function limit_body_size($body) {
  40. // logger('limit_body_size: start', LOGGER_DEBUG);
  41. $maxlen = get_max_import_size();
  42. // If the length of the body, including the embedded images, is smaller
  43. // than the maximum, then don't waste time looking for the images
  44. if ($maxlen && (strlen($body) > $maxlen)) {
  45. logger('limit_body_size: the total body length exceeds the limit', LOGGER_DEBUG);
  46. $orig_body = $body;
  47. $new_body = '';
  48. $textlen = 0;
  49. $max_found = false;
  50. $img_start = strpos($orig_body, '[img');
  51. $img_st_close = ($img_start !== false ? strpos(substr($orig_body, $img_start), ']') : false);
  52. $img_end = ($img_start !== false ? strpos(substr($orig_body, $img_start), '[/img]') : false);
  53. while (($img_st_close !== false) && ($img_end !== false)) {
  54. $img_st_close++; // make it point to AFTER the closing bracket
  55. $img_end += $img_start;
  56. $img_end += strlen('[/img]');
  57. if (! strcmp(substr($orig_body, $img_start + $img_st_close, 5), 'data:')) {
  58. // This is an embedded image
  59. if (($textlen + $img_start) > $maxlen ) {
  60. if ($textlen < $maxlen) {
  61. logger('limit_body_size: the limit happens before an embedded image', LOGGER_DEBUG);
  62. $new_body = $new_body . substr($orig_body, 0, $maxlen - $textlen);
  63. $textlen = $maxlen;
  64. }
  65. } else {
  66. $new_body = $new_body . substr($orig_body, 0, $img_start);
  67. $textlen += $img_start;
  68. }
  69. $new_body = $new_body . substr($orig_body, $img_start, $img_end - $img_start);
  70. } else {
  71. if (($textlen + $img_end) > $maxlen ) {
  72. if ($textlen < $maxlen) {
  73. logger('limit_body_size: the limit happens before the end of a non-embedded image', LOGGER_DEBUG);
  74. $new_body = $new_body . substr($orig_body, 0, $maxlen - $textlen);
  75. $textlen = $maxlen;
  76. }
  77. } else {
  78. $new_body = $new_body . substr($orig_body, 0, $img_end);
  79. $textlen += $img_end;
  80. }
  81. }
  82. $orig_body = substr($orig_body, $img_end);
  83. if ($orig_body === false) {
  84. // in case the body ends on a closing image tag
  85. $orig_body = '';
  86. }
  87. $img_start = strpos($orig_body, '[img');
  88. $img_st_close = ($img_start !== false ? strpos(substr($orig_body, $img_start), ']') : false);
  89. $img_end = ($img_start !== false ? strpos(substr($orig_body, $img_start), '[/img]') : false);
  90. }
  91. if (($textlen + strlen($orig_body)) > $maxlen) {
  92. if ($textlen < $maxlen) {
  93. logger('limit_body_size: the limit happens after the end of the last image', LOGGER_DEBUG);
  94. $new_body = $new_body . substr($orig_body, 0, $maxlen - $textlen);
  95. $textlen = $maxlen;
  96. }
  97. } else {
  98. logger('limit_body_size: the text size with embedded images extracted did not violate the limit', LOGGER_DEBUG);
  99. $new_body = $new_body . $orig_body;
  100. $textlen += strlen($orig_body);
  101. }
  102. return $new_body;
  103. } else {
  104. return $body;
  105. }
  106. }}
  107. function title_is_body($title, $body) {
  108. $title = strip_tags($title);
  109. $title = trim($title);
  110. $title = html_entity_decode($title, ENT_QUOTES, 'UTF-8');
  111. $title = str_replace(array("\n", "\r", "\t", " "), array("", "", "", ""), $title);
  112. $body = strip_tags($body);
  113. $body = trim($body);
  114. $body = html_entity_decode($body, ENT_QUOTES, 'UTF-8');
  115. $body = str_replace(array("\n", "\r", "\t", " "), array("", "", "", ""), $body);
  116. if (strlen($title) < strlen($body)) {
  117. $body = substr($body, 0, strlen($title));
  118. }
  119. if (($title != $body) and (substr($title, -3) == "...")) {
  120. $pos = strrpos($title, "...");
  121. if ($pos > 0) {
  122. $title = substr($title, 0, $pos);
  123. $body = substr($body, 0, $pos);
  124. }
  125. }
  126. return ($title == $body);
  127. }
  128. function add_page_info_data($data) {
  129. call_hooks('page_info_data', $data);
  130. // It maybe is a rich content, but if it does have everything that a link has,
  131. // then treat it that way
  132. if (($data["type"] == "rich") AND is_string($data["title"]) AND
  133. is_string($data["text"]) AND (sizeof($data["images"]) > 0)) {
  134. $data["type"] = "link";
  135. }
  136. if ((($data["type"] != "link") AND ($data["type"] != "video") AND ($data["type"] != "photo")) OR ($data["title"] == $data["url"])) {
  137. return "";
  138. }
  139. if ($no_photos AND ($data["type"] == "photo")) {
  140. return "";
  141. }
  142. if (sizeof($data["images"]) > 0) {
  143. $preview = $data["images"][0];
  144. } else {
  145. $preview = "";
  146. }
  147. // Escape some bad characters
  148. $data["url"] = str_replace(array("[", "]"), array("&#91;", "&#93;"), htmlentities($data["url"], ENT_QUOTES, 'UTF-8', false));
  149. $data["title"] = str_replace(array("[", "]"), array("&#91;", "&#93;"), htmlentities($data["title"], ENT_QUOTES, 'UTF-8', false));
  150. $text = "[attachment type='".$data["type"]."'";
  151. if ($data["text"] == "") {
  152. $data["text"] = $data["title"];
  153. }
  154. if ($data["text"] == "") {
  155. $data["text"] = $data["url"];
  156. }
  157. if ($data["url"] != "") {
  158. $text .= " url='".$data["url"]."'";
  159. }
  160. if ($data["title"] != "") {
  161. $text .= " title='".$data["title"]."'";
  162. }