<?php
-use Shaarli\Bookmark\LinkDB;
-
-/**
- * Get cURL callback function for CURLOPT_WRITEFUNCTION
- *
- * @param string $charset to extract from the downloaded page (reference)
- * @param string $title to extract from the downloaded page (reference)
- * @param string $curlGetInfo Optionally overrides curl_getinfo function
- *
- * @return Closure
- */
-function get_curl_download_callback(&$charset, &$title, $curlGetInfo = 'curl_getinfo')
-{
- $isRedirected = false;
- /**
- * cURL callback function for CURLOPT_WRITEFUNCTION (called during the download).
- *
- * While downloading the remote page, we check that the HTTP code is 200 and content type is 'html/text'
- * Then we extract the title and the charset and stop the download when it's done.
- *
- * @param resource $ch cURL resource
- * @param string $data chunk of data being downloaded
- *
- * @return int|bool length of $data or false if we need to stop the download
- */
- return function (&$ch, $data) use ($curlGetInfo, &$charset, &$title, &$isRedirected) {
- $responseCode = $curlGetInfo($ch, CURLINFO_RESPONSE_CODE);
- if (!empty($responseCode) && in_array($responseCode, [301, 302])) {
- $isRedirected = true;
- return strlen($data);
- }
- if (!empty($responseCode) && $responseCode !== 200) {
- return false;
- }
- // After a redirection, the content type will keep the previous request value
- // until it finds the next content-type header.
- if (! $isRedirected || strpos(strtolower($data), 'content-type') !== false) {
- $contentType = $curlGetInfo($ch, CURLINFO_CONTENT_TYPE);
- }
- if (!empty($contentType) && strpos($contentType, 'text/html') === false) {
- return false;
- }
- if (!empty($contentType) && empty($charset)) {
- $charset = header_extract_charset($contentType);
- }
- if (empty($charset)) {
- $charset = html_extract_charset($data);
- }
- if (empty($title)) {
- $title = html_extract_title($data);
- }
- // We got everything we want, stop the download.
- if (!empty($responseCode) && !empty($contentType) && !empty($charset) && !empty($title)) {
- return false;
- }
-
- return strlen($data);
- };
-}
+use Shaarli\Bookmark\Bookmark;
/**
* Extract title from an HTML document.
*/
function header_extract_charset($header)
{
- preg_match('/charset="?([^; ]+)/i', $header, $match);
+ preg_match('/charset=["\']?([^; "\']+)/i', $header, $match);
if (! empty($match[1])) {
return strtolower(trim($match[1]));
}
}
/**
- * Count private links in given linklist.
+ * Extract meta tag from HTML content in either:
+ * - OpenGraph: <meta property="og:[tag]" ...>
+ * - Meta tag: <meta name="[tag]" ...>
*
- * @param array|Countable $links Linklist.
+ * @param string $tag Name of the tag to retrieve.
+ * @param string $html HTML content where to look for charset.
*
- * @return int Number of private links.
+ * @return bool|string Charset string if found, false otherwise.
*/
-function count_private($links)
+function html_extract_tag($tag, $html)
{
- $cpt = 0;
- foreach ($links as $link) {
- if ($link['private']) {
- $cpt += 1;
- }
+ $propertiesKey = ['property', 'name', 'itemprop'];
+ $properties = implode('|', $propertiesKey);
+ // We need a OR here to accept either 'property=og:noquote' or 'property="og:unrelated og:my-tag"'
+ $orCondition = '["\']?(?:og:)?' . $tag . '["\']?|["\'][^\'"]*?(?:og:)?' . $tag . '[^\'"]*?[\'"]';
+ // Support quotes in double quoted content, and the other way around
+ $content = 'content=(["\'])((?:(?!\1).)*)\1';
+ // Try to retrieve OpenGraph tag.
+ $ogRegex = '#<meta[^>]+(?:' . $properties . ')=(?:' . $orCondition . ')[^>]*' . $content . '.*?>#';
+ // If the attributes are not in the order property => content (e.g. Github)
+ // New regex to keep this readable... more or less.
+ $ogRegexReverse = '#<meta[^>]+' . $content . '[^>]+(?:' . $properties . ')=(?:' . $orCondition . ').*?>#';
+
+ if (
+ preg_match($ogRegex, $html, $matches) > 0
+ || preg_match($ogRegexReverse, $html, $matches) > 0
+ ) {
+ return $matches[2];
}
- return $cpt;
+ return false;
}
/**
- * In a string, converts URLs to clickable links.
+ * In a string, converts URLs to clickable bookmarks.
*
* @param string $text input string.
- * @param string $redirector if a redirector is set, use it to gerenate links.
- * @param bool $urlEncode Use `urlencode()` on the URL after the redirector or not.
*
- * @return string returns $text with all links converted to HTML links.
+ * @return string returns $text with all bookmarks converted to HTML bookmarks.
*
* @see Function inspired from http://www.php.net/manual/en/function.preg-replace.php#85722
*/
-function text2clickable($text, $redirector = '', $urlEncode = true)
+function text2clickable($text)
{
$regex = '!(((?:https?|ftp|file)://|apt:|magnet:)\S+[a-z0-9\(\)]/?)!si';
-
- if (empty($redirector)) {
- return preg_replace($regex, '<a href="$1">$1</a>', $text);
- }
- // Redirector is set, urlencode the final URL.
- return preg_replace_callback(
- $regex,
- function ($matches) use ($redirector, $urlEncode) {
- $url = $urlEncode ? urlencode($matches[1]) : $matches[1];
- return '<a href="' . $redirector . $url .'">'. $matches[1] .'</a>';
- },
- $text
- );
+ return preg_replace($regex, '<a href="$1">$1</a>', $text);
}
/**
* \p{Mn} - any non marking space (accents, umlauts, etc)
*/
$regex = '/(^|\s)#([\p{Pc}\p{N}\p{L}\p{Mn}]+)/mui';
- $replacement = '$1<a href="'. $indexUrl .'?addtag=$2" title="Hashtag $2">#$2</a>';
+ $replacement = '$1<a href="' . $indexUrl . './add-tag/$2" title="Hashtag $2">#$2</a>';
return preg_replace($regex, $replacement, $description);
}
* Format Shaarli's description
*
* @param string $description shaare's description.
- * @param string $redirector if a redirector is set, use it to gerenate links.
- * @param bool $urlEncode Use `urlencode()` on the URL after the redirector or not.
* @param string $indexUrl URL to Shaarli's index.
-
+ * @param bool $autolink Turn on/off automatic linkifications of URLs and hashtags
+ *
* @return string formatted description.
*/
-function format_description($description, $redirector = '', $urlEncode = true, $indexUrl = '')
+function format_description($description, $indexUrl = '', $autolink = true)
{
- return nl2br(space2nbsp(hashtag_autolink(text2clickable($description, $redirector, $urlEncode), $indexUrl)));
+ if ($autolink) {
+ $description = hashtag_autolink(text2clickable($description), $indexUrl);
+ }
+
+ return nl2br(space2nbsp($description));
}
/**
*/
function link_small_hash($date, $id)
{
- return smallHash($date->format(LinkDB::LINK_DATE_FORMAT) . $id);
+ return smallHash($date->format(Bookmark::LINK_DATE_FORMAT) . $id);
+}
+
+/**
+ * Returns whether or not the link is an internal note.
+ * Its URL starts by `?` because it's actually a permalink.
+ *
+ * @param string $linkUrl
+ *
+ * @return bool true if internal note, false otherwise.
+ */
+function is_note($linkUrl)
+{
+ return isset($linkUrl[0]) && $linkUrl[0] === '?';
+}
+
+/**
+ * Extract an array of tags from a given tag string, with provided separator.
+ *
+ * @param string|null $tags String containing a list of tags separated by $separator.
+ * @param string $separator Shaarli's default: ' ' (whitespace)
+ *
+ * @return array List of tags
+ */
+function tags_str2array(?string $tags, string $separator): array
+{
+ // For whitespaces, we use the special \s regex character
+ $separator = $separator === ' ' ? '\s' : $separator;
+
+ return preg_split('/\s*' . $separator . '+\s*/', trim($tags) ?? '', -1, PREG_SPLIT_NO_EMPTY);
+}
+
+/**
+ * Return a tag string with provided separator from a list of tags.
+ * Note that given array is clean up by tags_filter().
+ *
+ * @param array|null $tags List of tags
+ * @param string $separator
+ *
+ * @return string
+ */
+function tags_array2str(?array $tags, string $separator): string
+{
+ return implode($separator, tags_filter($tags, $separator));
+}
+
+/**
+ * Clean an array of tags: trim + remove empty entries
+ *
+ * @param array|null $tags List of tags
+ * @param string $separator
+ *
+ * @return array
+ */
+function tags_filter(?array $tags, string $separator): array
+{
+ $trimDefault = " \t\n\r\0\x0B";
+ return array_values(array_filter(array_map(function (string $entry) use ($separator, $trimDefault): string {
+ return trim($entry, $trimDefault . $separator);
+ }, $tags ?? [])));
}
projects / github / shaarli / Shaarli.git / blobdiff