+++ /dev/null
-<?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 $curlGetInfo Optionnaly overrides curl_getinfo function
- *
- * @return Closure
- */
-function get_curl_download_callback(&$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);
- };
-}
-
-/**
- * Extract title from an HTML document.
- *
- * @param string $html HTML content where to look for a title.
- *
- * @return bool|string Extracted title if found, false otherwise.
- */
-function html_extract_title($html)
-{
- if (preg_match('!<title.*?>(.*?)</title>!is', $html, $matches)) {
- return trim(str_replace("\n", '', $matches[1]));
- }
- return false;
-}
-
-/**
- * Extract charset from HTTP header if it's defined.
- *
- * @param string $header HTTP header Content-Type line.
- *
- * @return bool|string Charset string if found (lowercase), false otherwise.
- */
-function header_extract_charset($header)
-{
- preg_match('/charset="?([^; ]+)/i', $header, $match);
- if (! empty($match[1])) {
- return strtolower(trim($match[1]));
- }
-
- return false;
-}
-
-/**
- * Extract charset HTML content (tag <meta charset>).
- *
- * @param string $html HTML content where to look for charset.
- *
- * @return bool|string Charset string if found, false otherwise.
- */
-function html_extract_charset($html)
-{
- // Get encoding specified in HTML header.
- preg_match('#<meta .*charset=["\']?([^";\'>/]+)["\']? */?>#Usi', $html, $enc);
- if (!empty($enc[1])) {
- return strtolower($enc[1]);
- }
-
- return false;
-}
-
-/**
- * Count private links in given linklist.
- *
- * @param array|Countable $links Linklist.
- *
- * @return int Number of private links.
- */
-function count_private($links)
-{
- $cpt = 0;
- foreach ($links as $link) {
- if ($link['private']) {
- $cpt += 1;
- }
- }
-
- return $cpt;
-}
-
-/**
- * In a string, converts URLs to clickable links.
- *
- * @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 $text with all links converted to HTML links.
- *
- * @see Function inspired from http://www.php.net/manual/en/function.preg-replace.php#85722
- */
-function text2clickable($text, $redirector = '', $urlEncode = true)
-{
- $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
- );
-}
-
-/**
- * Auto-link hashtags.
- *
- * @param string $description Given description.
- * @param string $indexUrl Root URL.
- *
- * @return string Description with auto-linked hashtags.
- */
-function hashtag_autolink($description, $indexUrl = '')
-{
- /*
- * To support unicode: http://stackoverflow.com/a/35498078/1484919
- * \p{Pc} - to match underscore
- * \p{N} - numeric character in any script
- * \p{L} - letter from any language
- * \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">#$2</a>';
- return preg_replace($regex, $replacement, $description);
-}
-
-/**
- * This function inserts where relevant so that multiple spaces are properly displayed in HTML
- * even in the absence of <pre> (This is used in description to keep text formatting).
- *
- * @param string $text input text.
- *
- * @return string formatted text.
- */
-function space2nbsp($text)
-{
- return preg_replace('/(^| ) /m', '$1 ', $text);
-}
-
-/**
- * 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 $indexUrl URL to Shaarli's index.
-
- * @return string formatted description.
- */
-function format_description($description, $redirector = '', $urlEncode = true, $indexUrl = '')
-{
- return nl2br(space2nbsp(hashtag_autolink(text2clickable($description, $redirector, $urlEncode), $indexUrl)));
-}
-
-/**
- * Generate a small hash for a link.
- *
- * @param DateTime $date Link creation date.
- * @param int $id Link ID.
- *
- * @return string the small hash generated from link data.
- */
-function link_small_hash($date, $id)
-{
- return smallHash($date->format(LinkDB::LINK_DATE_FORMAT) . $id);
-}
projects / github / shaarli / Shaarli.git / blobdiff