diff options
Diffstat (limited to 'include/wiki.php')
| -rw-r--r-- | include/wiki.php | 664 |
1 files changed, 0 insertions, 664 deletions
diff --git a/include/wiki.php b/include/wiki.php deleted file mode 100644 index 922be6924..000000000 --- a/include/wiki.php +++ /dev/null @@ -1,664 +0,0 @@ -<?php -/** - * @file include/wiki.php - * @brief Wiki related functions. - */ - -use \Zotlabs\Storage\GitRepo as GitRepo; -define ( 'WIKI_ITEM_RESOURCE_TYPE', 'wiki' ); - -function wiki_list($channel, $observer_hash) { - $sql_extra = item_permissions_sql($channel['channel_id'], $observer_hash); - $wikis = q("SELECT * FROM item WHERE resource_type = '%s' AND mid = parent_mid AND uid = %d AND item_deleted = 0 $sql_extra", - dbesc(WIKI_ITEM_RESOURCE_TYPE), - intval($channel['channel_id']) - ); - if($wikis) { - foreach($wikis as &$w) { - $w['rawName'] = get_iconfig($w, 'wiki', 'rawName'); - $w['htmlName'] = get_iconfig($w, 'wiki', 'htmlName'); - $w['urlName'] = get_iconfig($w, 'wiki', 'urlName'); - $w['path'] = get_iconfig($w, 'wiki', 'path'); - $w['mimeType'] = get_iconfig($w, 'wiki', 'mimeType'); - $w['lock'] = (($w['allow_cid'] || $w['allow_gid'] || $w['deny_cid'] || $w['deny_gid']) ? true : false); - } - } - // TODO: query db for wikis the observer can access. Return with two lists, for read and write access - return array('wikis' => $wikis); -} - -function wiki_page_list($resource_id) { - // TODO: Create item table records for pages so that metadata like title can be applied - $w = wiki_get_wiki($resource_id); - if (!$w['path']) { - return array('pages' => null, 'wiki' => null); - } - - $pages[] = [ - 'resource_id' => '', - 'title' => 'Home', - 'url' => 'Home', - 'link_id' => 'id_wiki_home_0' - ]; - - if (is_dir($w['path']) === true) { - $files = array_diff(scandir($w['path']), array('.', '..', '.git')); - // TODO: Check that the files are all text files - $i = 1; - foreach($files as $file) { - // strip the file extension and unwrap URL encoding to leave HTML encoded name - $title = substr($file, 0, strrpos($file,'.')); - if(urldecode($title) !== 'Home') { - $pages[] = [ - 'resource_id' => $resource_id, - 'title' => urldecode($title), - 'url' => $title, - 'link_id' => 'id_' . substr($resource_id, 0, 10) . '_' . $i - ]; - $i++; - } - } - } - - return array('pages' => $pages, 'wiki' => $w); -} - -function wiki_init_wiki($channel, $wiki) { - // Store the path as a relative path, but pass absolute path to mkdir - $path = 'store/[data]/git/'.$channel['channel_address'].'/wiki/'.$wiki['urlName']; - if (!os_mkdir(__DIR__ . '/../' . $path, 0770, true)) { - logger('Error creating wiki path: ' . $path); - return null; - } - // Create GitRepo object - $git = new GitRepo($channel['channel_address'], null, false, $wiki['urlName'], __DIR__ . '/../' . $path); - if(!$git->initRepo()) { - logger('Error creating new git repo in ' . $git->path); - return null; - } - - return array('path' => $path); -} - -function wiki_create_wiki($channel, $observer_hash, $wiki, $acl) { - $wikiinit = wiki_init_wiki($channel, $wiki); - if (!$wikiinit['path']) { - notice('Error creating wiki'); - return array('item' => null, 'success' => false); - } - $path = $wikiinit['path']; - // Generate unique resource_id using the same method as item_message_id() - do { - $dups = false; - $resource_id = random_string(); - $r = q("SELECT mid FROM item WHERE resource_id = '%s' AND resource_type = '%s' AND uid = %d LIMIT 1", - dbesc($resource_id), - dbesc(WIKI_ITEM_RESOURCE_TYPE), - intval($channel['channel_id']) - ); - if (count($r)) - $dups = true; - } while ($dups == true); - $ac = $acl->get(); - $mid = item_message_id(); - $arr = array(); // Initialize the array of parameters for the post - $item_hidden = ((intval($wiki['postVisible']) === 0) ? 1 : 0); - $wiki_url = z_root() . '/wiki/' . $channel['channel_address'] . '/' . $wiki['urlName']; - $arr['aid'] = $channel['channel_account_id']; - $arr['uid'] = $channel['channel_id']; - $arr['mid'] = $mid; - $arr['parent_mid'] = $mid; - $arr['item_hidden'] = $item_hidden; - $arr['resource_type'] = WIKI_ITEM_RESOURCE_TYPE; - $arr['resource_id'] = $resource_id; - $arr['owner_xchan'] = $channel['channel_hash']; - $arr['author_xchan'] = $observer_hash; - $arr['plink'] = z_root() . '/channel/' . $channel['channel_address'] . '/?f=&mid=' . $arr['mid']; - $arr['llink'] = $arr['plink']; - $arr['title'] = $wiki['htmlName']; // name of new wiki; - $arr['allow_cid'] = $ac['allow_cid']; - $arr['allow_gid'] = $ac['allow_gid']; - $arr['deny_cid'] = $ac['deny_cid']; - $arr['deny_gid'] = $ac['deny_gid']; - $arr['item_wall'] = 1; - $arr['item_origin'] = 1; - $arr['item_thread_top'] = 1; - $arr['item_private'] = intval($acl->is_private()); - $arr['verb'] = ACTIVITY_CREATE; - $arr['obj_type'] = ACTIVITY_OBJ_WIKI; - $arr['body'] = '[table][tr][td][h1]New Wiki[/h1][/td][/tr][tr][td][zrl=' . $wiki_url . ']' . $wiki['htmlName'] . '[/zrl][/td][/tr][/table]'; - // Save the path using iconfig. The file path should not be shared with other hubs - if (!set_iconfig($arr, 'wiki', 'path', $path, false)) { - return array('item' => null, 'success' => false); - } - // Save the wiki name information using iconfig. This is shareable. - if (!set_iconfig($arr, 'wiki', 'rawName', $wiki['rawName'], true)) { - return array('item' => null, 'success' => false); - } - if (!set_iconfig($arr, 'wiki', 'htmlName', $wiki['htmlName'], true)) { - return array('item' => null, 'success' => false); - } - if (!set_iconfig($arr, 'wiki', 'urlName', $wiki['urlName'], true)) { - return array('item' => null, 'success' => false); - } - if (!set_iconfig($arr, 'wiki', 'mimeType', $wiki['mimeType'], true)) { - return array('item' => null, 'success' => false); - } - $post = item_store($arr); - $item_id = $post['item_id']; - - if ($item_id) { - \Zotlabs\Daemon\Master::Summon(array('Notifier', 'activity', $item_id)); - return array('item' => $post['item'], 'success' => true); - } else { - return array('item' => null, 'success' => false); - } -} - -function wiki_delete_wiki($resource_id) { - - $w = wiki_get_wiki($resource_id); - $item = $w['wiki']; - if (!$item || !$w['path']) { - return array('item' => null, 'success' => false); - } else { - $drop = drop_item($item['id'], false, DROPITEM_NORMAL, true); - $pathdel = rrmdir($w['path']); - if ($pathdel) { - info('Wiki files deleted successfully'); - } - return array('item' => $item, 'success' => (($drop === 1 && $pathdel) ? true : false)); - } -} - -function wiki_get_wiki($resource_id) { - $item = q("SELECT * FROM item WHERE resource_type = '%s' AND resource_id = '%s' AND item_deleted = 0 limit 1", - dbesc(WIKI_ITEM_RESOURCE_TYPE), - dbesc($resource_id) - ); - if (!$item) { - return array('wiki' => null, 'path' => null); - } else { - $w = $item[0]; // wiki item table record - // Get wiki metadata - $rawName = get_iconfig($w, 'wiki', 'rawName'); - $htmlName = get_iconfig($w, 'wiki', 'htmlName'); - $urlName = get_iconfig($w, 'wiki', 'urlName'); - $mimeType = get_iconfig($w, 'wiki', 'mimeType'); - - $path = get_iconfig($w, 'wiki', 'path'); - if (!realpath(__DIR__ . '/../' . $path)) { - return array('wiki' => null, 'path' => null); - } - // Path to wiki exists - $abs_path = realpath(__DIR__ . '/../' . $path); - return array( - 'wiki' => $w, - 'path' => $abs_path, - 'rawName' => $rawName, - 'htmlName' => $htmlName, - 'urlName' => $urlName, - 'mimeType' => $mimeType - ); - } -} - -function wiki_exists_by_name($uid, $urlName) { - $item = q("SELECT id,resource_id FROM item WHERE resource_type = '%s' AND title = '%s' AND uid = '%s' AND item_deleted = 0 limit 1", - dbesc(WIKI_ITEM_RESOURCE_TYPE), - dbesc(escape_tags(urldecode($urlName))), - dbesc($uid) - ); - if (!$item) { - return array('id' => null, 'resource_id' => null); - } else { - return array('id' => $item[0]['id'], 'resource_id' => $item[0]['resource_id']); - } -} - -function wiki_get_permissions($resource_id, $owner_id, $observer_hash) { - // TODO: For now, only the owner can edit - $sql_extra = item_permissions_sql($owner_id, $observer_hash); - - if(local_channel() && local_channel == $owner_id) { - return [ 'read' => true, 'write' => true, 'success' => true ]; - } - - $r = q("SELECT * FROM item WHERE uid = %d and resource_type = '%s' AND resource_id = '%s' $sql_extra LIMIT 1", - intval($owner_id), - dbesc(WIKI_ITEM_RESOURCE_TYPE), - dbesc($resource_id) - ); - - if (!$r) { - return array('read' => false, 'write' => false, 'success' => true); - } else { - // TODO: Create a new permission setting for wiki analogous to webpages. Until - // then, use webpage permissions - $write = perm_is_allowed($owner_id, $observer_hash,'write_pages'); - return array('read' => true, 'write' => $write, 'success' => true); - } -} - -function wiki_create_page($name, $resource_id) { - $w = wiki_get_wiki($resource_id); - if (!$w['path']) { - return array('page' => null, 'wiki' => null, 'message' => 'Wiki not found.', 'success' => false); - } - - $page = array('rawName' => $name, 'htmlName' => escape_tags($name), 'urlName' => urlencode(escape_tags($name)), 'fileName' => urlencode(escape_tags($name)) . wiki_get_file_ext($w)); - $page_path = $w['path'] . '/' . $page['fileName']; - if (is_file($page_path)) { - return array('page' => null, 'wiki' => null, 'message' => 'Page already exists.', 'success' => false); - } - // Create the page file in the wiki repo - if(!touch($page_path)) { - return array('page' => null, 'wiki' => null, 'message' => 'Page file cannot be created.', 'success' => false); - } else { - return array('page' => $page, 'wiki' => $w, 'message' => '', 'success' => true); - } - -} - -function wiki_rename_page($arr) { - $pageUrlName = ((array_key_exists('pageUrlName',$arr)) ? $arr['pageUrlName'] : ''); - $pageNewName = ((array_key_exists('pageNewName',$arr)) ? $arr['pageNewName'] : ''); - $resource_id = ((array_key_exists('resource_id',$arr)) ? $arr['resource_id'] : ''); - $w = wiki_get_wiki($resource_id); - if (!$w['path']) { - return array('message' => 'Wiki not found.', 'success' => false); - } - $page_path_old = $w['path'] . '/' . $pageUrlName . wiki_get_file_ext($w); - if (!is_readable($page_path_old) === true) { - return array('message' => 'Cannot read wiki page: ' . $page_path_old, 'success' => false); - } - $page = array('rawName' => $pageNewName, 'htmlName' => escape_tags($pageNewName), 'urlName' => urlencode(escape_tags($pageNewName)), 'fileName' => urlencode(escape_tags($pageNewName)) . wiki_get_file_ext($w)); - $page_path_new = $w['path'] . '/' . $page['fileName'] ; - if (is_file($page_path_new)) { - return array('message' => 'Page already exists.', 'success' => false); - } - // Rename the page file in the wiki repo - if(!rename($page_path_old, $page_path_new)) { - return array('message' => 'Error renaming page file.', 'success' => false); - } else { - return array('page' => $page, 'message' => '', 'success' => true); - } - -} - -function wiki_get_page_content($arr) { - $pageUrlName = ((array_key_exists('pageUrlName',$arr)) ? $arr['pageUrlName'] : ''); - $resource_id = ((array_key_exists('resource_id',$arr)) ? $arr['resource_id'] : ''); - $w = wiki_get_wiki($resource_id); - if (!$w['path']) { - return array('content' => null, 'message' => 'Error reading wiki', 'success' => false); - } - $page_path = $w['path'] . '/' . $pageUrlName . wiki_get_file_ext($w); - if (is_readable($page_path) === true) { - if(filesize($page_path) === 0) { - $content = ''; - } else { - $content = file_get_contents($page_path); - if(!$content) { - return array('content' => null, 'message' => 'Error reading page content', 'success' => false); - } - } - // TODO: Check that the files are all text files - return array('content' => json_encode($content), 'mimeType' => $w['mimeType'], 'message' => '', 'success' => true); - } -} - -function wiki_page_history($arr) { - $pageUrlName = ((array_key_exists('pageUrlName',$arr)) ? $arr['pageUrlName'] : ''); - $resource_id = ((array_key_exists('resource_id',$arr)) ? $arr['resource_id'] : ''); - $w = wiki_get_wiki($resource_id); - if (!$w['path']) { - return array('history' => null, 'message' => 'Error reading wiki', 'success' => false); - } - $page_path = $w['path'] . '/' . $pageUrlName . wiki_get_file_ext($w); - if (!is_readable($page_path) === true) { - return array('history' => null, 'message' => 'Cannot read wiki page: ' . $page_path, 'success' => false); - } - $reponame = ((array_key_exists('title', $w['wiki'])) ? $w['wiki']['title'] : 'repo'); - if($reponame === '') { - $reponame = 'repo'; - } - $git = new GitRepo('', null, false, $w['wiki']['title'], $w['path']); - try { - $gitlog = $git->git->log('', $page_path , array('limit' => 500)); - return array('history' => $gitlog, 'message' => '', 'success' => true); - } catch (\PHPGit\Exception\GitException $e) { - return array('history' => null, 'message' => 'GitRepo error thrown', 'success' => false); - } -} - -function wiki_prepare_content($s) { - - $text = preg_replace_callback('{ - (?:\n\n|\A\n?) - ( # $1 = the code block -- one or more lines, starting with a space/tab - (?> - [ ]{'.'4'.'} # Lines must start with a tab or a tab-width of spaces - .*\n+ - )+ - ) - ((?=^[ ]{0,'.'4'.'}\S)|\Z) # Lookahead for non-space at line-start, or end of doc - }xm', - 'wiki_prepare_content_callback', $s); - - return $text; -} - -function wiki_prepare_content_callback($matches) { - $codeblock = $matches[1]; - - $codeblock = htmlspecialchars($codeblock, ENT_NOQUOTES, UTF8, false); - return "\n\n" . $codeblock ; -} - - - -function wiki_save_page($arr) { - $pageUrlName = ((array_key_exists('pageUrlName',$arr)) ? $arr['pageUrlName'] : ''); - $content = ((array_key_exists('content',$arr)) ? purify_html(wiki_prepare_content($arr['content'])) : ''); - $resource_id = ((array_key_exists('resource_id',$arr)) ? $arr['resource_id'] : ''); - $w = wiki_get_wiki($resource_id); - if (!$w['path']) { - return array('message' => 'Error reading wiki', 'success' => false); - } - - $fileName = $pageUrlName . wiki_get_file_ext($w); - $page_path = $w['path'] . '/' . $fileName; - if (is_writable($page_path) === true) { - if(!file_put_contents($page_path, $content)) { - return array('message' => 'Error writing to page file', 'success' => false); - } - return array('message' => '', 'filename' => $filename, 'success' => true); - } else { - return array('message' => 'Page file not writable', 'success' => false); - } -} - -function wiki_delete_page($arr) { - $pageUrlName = ((array_key_exists('pageUrlName',$arr)) ? $arr['pageUrlName'] : ''); - $resource_id = ((array_key_exists('resource_id',$arr)) ? $arr['resource_id'] : ''); - $w = wiki_get_wiki($resource_id); - if (!$w['path']) { - return array('message' => 'Error reading wiki', 'success' => false); - } - $page_path = $w['path'] . '/' . $pageUrlName . wiki_get_file_ext($w); - if (is_writable($page_path) === true) { - if(!unlink($page_path)) { - return array('message' => 'Error deleting page file', 'success' => false); - } - return array('message' => '', 'success' => true); - } else { - return array('message' => 'Page file not writable', 'success' => false); - } -} - -function wiki_revert_page($arr) { - $pageUrlName = ((array_key_exists('pageUrlName',$arr)) ? $arr['pageUrlName'] : ''); - $resource_id = ((array_key_exists('resource_id',$arr)) ? $arr['resource_id'] : ''); - $commitHash = ((array_key_exists('commitHash',$arr)) ? $arr['commitHash'] : null); - if (! $commitHash) { - return array('content' => $content, 'message' => 'No commit was provided', 'success' => false); - } - $w = wiki_get_wiki($resource_id); - if (!$w['path']) { - return array('content' => $content, 'message' => 'Error reading wiki', 'success' => false); - } - $page_path = $w['path'] . '/' . $pageUrlName . wiki_get_file_ext($w); - if (is_writable($page_path) === true) { - - $reponame = ((array_key_exists('title', $w['wiki'])) ? urlencode($w['wiki']['title']) : 'repo'); - if($reponame === '') { - $reponame = 'repo'; - } - $git = new GitRepo($observer['xchan_addr'], null, false, $w['wiki']['title'], $w['path']); - $content = null; - try { - $git->setIdentity($observer['xchan_name'], $observer['xchan_addr']); - foreach ($git->git->tree($commitHash) as $object) { - if ($object['type'] == 'blob' && $object['file'] === $pageUrlName . wiki_get_file_ext($w)) { - $content = $git->git->cat->blob($object['hash']); - } - } - } catch (\PHPGit\Exception\GitException $e) { - return array('content' => $content, 'message' => 'GitRepo error thrown', 'success' => false); - } - return array('content' => $content, 'message' => '', 'success' => true); - } else { - return array('content' => $content, 'message' => 'Page file not writable', 'success' => false); - } -} - -function wiki_compare_page($arr) { - $pageUrlName = ((array_key_exists('pageUrlName',$arr)) ? $arr['pageUrlName'] : ''); - $resource_id = ((array_key_exists('resource_id',$arr)) ? $arr['resource_id'] : ''); - $currentCommit = ((array_key_exists('currentCommit',$arr)) ? $arr['currentCommit'] : 'HEAD'); - $compareCommit = ((array_key_exists('compareCommit',$arr)) ? $arr['compareCommit'] : null); - if (! $compareCommit) { - return array('message' => 'No compare commit was provided', 'success' => false); - } - $w = wiki_get_wiki($resource_id); - if (!$w['path']) { - return array('message' => 'Error reading wiki', 'success' => false); - } - $page_path = $w['path'] . '/' . $pageUrlName . wiki_get_file_ext($w); - if (is_readable($page_path) === true) { - $reponame = ((array_key_exists('title', $w['wiki'])) ? urlencode($w['wiki']['title']) : 'repo'); - if($reponame === '') { - $reponame = 'repo'; - } - $git = new GitRepo('', null, false, $w['wiki']['title'], $w['path']); - $compareContent = $currentContent = ''; - try { - foreach ($git->git->tree($currentCommit) as $object) { - if ($object['type'] == 'blob' && $object['file'] === $pageUrlName . wiki_get_file_ext($w)) { - $currentContent = $git->git->cat->blob($object['hash']); - } - } - foreach ($git->git->tree($compareCommit) as $object) { - if ($object['type'] == 'blob' && $object['file'] === $pageUrlName . wiki_get_file_ext($w)) { - $compareContent = $git->git->cat->blob($object['hash']); - } - } - require_once('library/class.Diff.php'); - $diff = Diff::toTable(Diff::compare($currentContent, $compareContent)); - } catch (\PHPGit\Exception\GitException $e) { - return array('message' => 'GitRepo error thrown', 'success' => false); - } - return array('diff' => $diff, 'message' => '', 'success' => true); - } else { - return array('message' => 'Page file not writable', 'success' => false); - } -} - -function wiki_git_commit($arr) { - $files = ((array_key_exists('files', $arr)) ? $arr['files'] : null); - $all = ((array_key_exists('all', $arr)) ? $arr['all'] : false); - $commit_msg = ((array_key_exists('commit_msg', $arr)) ? $arr['commit_msg'] : 'Repo updated'); - if(array_key_exists('resource_id', $arr)) { - $resource_id = $arr['resource_id']; - } else { - return array('message' => 'Wiki resource_id required for git commit', 'success' => false); - } - if(array_key_exists('observer', $arr)) { - $observer = $arr['observer']; - } else { - return array('message' => 'Observer required for git commit', 'success' => false); - } - $w = wiki_get_wiki($resource_id); - if (!$w['path']) { - return array('message' => 'Error reading wiki', 'success' => false); - } - $reponame = ((array_key_exists('title', $w['wiki'])) ? urlencode($w['wiki']['title']) : 'repo'); - if($reponame === '') { - $reponame = 'repo'; - } - $git = new GitRepo($observer['xchan_addr'], null, false, $w['wiki']['title'], $w['path']); - try { - $git->setIdentity($observer['xchan_name'], $observer['xchan_addr']); - if ($files === null) { - $options = array('all' => true); // git commit option to include all changes - } else { - $options = array('all' => $all); // git commit options\ - foreach ($files as $file) { - if (!$git->git->add($file)) { // add specified files to the git repo stage - if (!$git->git->reset->hard()) { - return array('message' => 'Error adding file to git stage: ' . $file . '. Error resetting git repo.', 'success' => false); - } - return array('message' => 'Error adding file to git stage: ' . $file, 'success' => false); - } - } - } - if ($git->commit($commit_msg, $options)) { - return array('message' => 'Wiki repo commit succeeded', 'success' => true); - } else { - return array('message' => 'Wiki repo commit failed', 'success' => false); - } - } catch (\PHPGit\Exception\GitException $e) { - return array('message' => 'GitRepo error thrown', 'success' => false); - } -} - -function wiki_convert_links($s, $wikiURL) { - - if (strpos($s,'[[') !== false) { - preg_match_all("/\[\[(.*?)\]\]/", $s, $match); - $pages = $pageURLs = array(); - foreach ($match[1] as $m) { - // TODO: Why do we need to double urlencode for this to work? - $pageURLs[] = urlencode(urlencode(escape_tags($m))); - $pages[] = $m; - } - $idx = 0; - while(strpos($s,'[[') !== false) { - $replace = '<a href="'.$wikiURL.'/'.$pageURLs[$idx].'">'.$pages[$idx].'</a>'; - $s = preg_replace("/\[\[(.*?)\]\]/", $replace, $s, 1); - $idx++; - } - } - return $s; -} - -/** - * Replace the instances of the string [toc] with a list element that will be populated by - * a table of contents by the JavaScript library - * @param string $s - * @return string - */ -function wiki_generate_toc($s) { - if (strpos($s,'[toc]') !== false) { - //$toc_md = wiki_toc($s); // Generate Markdown-formatted list prior to HTML render - $toc_md = '<ul id="wiki-toc"></ul>'; // use the available jQuery plugin http://ndabas.github.io/toc/ - $s = preg_replace("/\[toc\]/", $toc_md, $s, -1); - } - return $s; -} - -/** - * Converts a select set of bbcode tags. Much of the code is copied from include/bbcode.php - * @param string $s - * @return string - */ -function wiki_bbcode($s) { - - $s = str_replace(array('[baseurl]', '[sitename]'), array(z_root(), get_config('system', 'sitename')), $s); - - $observer = App::get_observer(); - if ($observer) { - $s1 = '<span class="bb_observer" title="' . t('Different viewers will see this text differently') . '">'; - $s2 = '</span>'; - $obsBaseURL = $observer['xchan_connurl']; - $obsBaseURL = preg_replace("/\/poco\/.*$/", '', $obsBaseURL); - $s = str_replace('[observer.baseurl]', $obsBaseURL, $s); - $s = str_replace('[observer.url]', $observer['xchan_url'], $s); - $s = str_replace('[observer.name]', $s1 . $observer['xchan_name'] . $s2, $s); - $s = str_replace('[observer.address]', $s1 . $observer['xchan_addr'] . $s2, $s); - $s = str_replace('[observer.webname]', substr($observer['xchan_addr'], 0, strpos($observer['xchan_addr'], '@')), $s); - $s = str_replace('[observer.photo]', '', $s); - } else { - $s = str_replace('[observer.baseurl]', '', $s); - $s = str_replace('[observer.url]', '', $s); - $s = str_replace('[observer.name]', '', $s); - $s = str_replace('[observer.address]', '', $s); - $s = str_replace('[observer.webname]', '', $s); - $s = str_replace('[observer.photo]', '', $s); - } - - return $s; -} - -function wiki_get_file_ext($arr) { - if($arr['mimeType'] == 'text/bbcode') - return '.bb'; - else - return '.md'; -} - -// This function is derived from -// http://stackoverflow.com/questions/32068537/generate-table-of-contents-from-markdown-in-php -function wiki_toc($content) { - // ensure using only "\n" as line-break - $source = str_replace(["\r\n", "\r"], "\n", $content); - - // look for markdown TOC items - preg_match_all( - '/^(?:=|-|#).*$/m', - $source, - $matches, - PREG_PATTERN_ORDER | PREG_OFFSET_CAPTURE - ); - - // preprocess: iterate matched lines to create an array of items - // where each item is an array(level, text) - $file_size = strlen($source); - foreach ($matches[0] as $item) { - $found_mark = substr($item[0], 0, 1); - if ($found_mark == '#') { - // text is the found item - $item_text = $item[0]; - $item_level = strrpos($item_text, '#') + 1; - $item_text = substr($item_text, $item_level); - } else { - // text is the previous line (empty if <hr>) - $item_offset = $item[1]; - $prev_line_offset = strrpos($source, "\n", -($file_size - $item_offset + 2)); - $item_text = - substr($source, $prev_line_offset, $item_offset - $prev_line_offset - 1); - $item_text = trim($item_text); - $item_level = $found_mark == '=' ? 1 : 2; - } - if (!trim($item_text) OR strpos($item_text, '|') !== FALSE) { - // item is an horizontal separator or a table header, don't mind - continue; - } - $raw_toc[] = ['level' => $item_level, 'text' => trim($item_text)]; - } - $o = ''; - foreach($raw_toc as $t) { - $level = intval($t['level']); - $text = $t['text']; - switch ($level) { - case 1: - $li = '* '; - break; - case 2: - $li = ' * '; - break; - case 3: - $li = ' * '; - break; - case 4: - $li = ' * '; - break; - default: - $li = '* '; - break; - } - $o .= $li . $text . "\n"; - } - return $o; -} |