* GET an HTTP URL to retrieve its content
* Uses the cURL library or a fallback method
*
- * @param string $url URL to get (http://...)
- * @param int $timeout network timeout (in seconds)
- * @param int $maxBytes maximum downloaded bytes (default: 4 MiB)
- * @param callable|string $curlWriteFunction Optional callback called during the download (cURL CURLOPT_WRITEFUNCTION).
- * Can be used to add download conditions on the
- * headers (response code, content type, etc.).
+ * @param string $url URL to get (http://...)
+ * @param int $timeout network timeout (in seconds)
+ * @param int $maxBytes maximum downloaded bytes (default: 4 MiB)
+ * @param callable|string $curlHeaderFunction Optional callback called during the download of headers
+ * (CURLOPT_HEADERFUNCTION)
+ * @param callable|string $curlWriteFunction Optional callback called during the download (cURL CURLOPT_WRITEFUNCTION).
+ * Can be used to add download conditions on the
+ * headers (response code, content type, etc.).
*
* @return array HTTP response headers, downloaded content
*
* @see http://stackoverflow.com/q/9183178
* @see http://stackoverflow.com/q/1462720
*/
-function get_http_response($url, $timeout = 30, $maxBytes = 4194304, $curlWriteFunction = null)
-{
+function get_http_response(
+ $url,
+ $timeout = 30,
+ $maxBytes = 4194304,
+ $curlHeaderFunction = null,
+ $curlWriteFunction = null
+) {
$urlObj = new Url($url);
$cleanUrl = $urlObj->idnToAscii();
// General cURL settings
curl_setopt($ch, CURLOPT_AUTOREFERER, true);
curl_setopt($ch, CURLOPT_FOLLOWLOCATION, true);
- curl_setopt($ch, CURLOPT_HEADER, true);
+ // Default header download if the $curlHeaderFunction is not defined
+ curl_setopt($ch, CURLOPT_HEADER, !is_callable($curlHeaderFunction));
curl_setopt(
$ch,
CURLOPT_HTTPHEADER,
curl_setopt($ch, CURLOPT_TIMEOUT, $timeout);
curl_setopt($ch, CURLOPT_USERAGENT, $userAgent);
- if (is_callable($curlWriteFunction)) {
- curl_setopt($ch, CURLOPT_WRITEFUNCTION, $curlWriteFunction);
- }
-
// Max download size management
curl_setopt($ch, CURLOPT_BUFFERSIZE, 1024*16);
curl_setopt($ch, CURLOPT_NOPROGRESS, false);
+ if (is_callable($curlHeaderFunction)) {
+ curl_setopt($ch, CURLOPT_HEADERFUNCTION, $curlHeaderFunction);
+ }
+ if (is_callable($curlWriteFunction)) {
+ curl_setopt($ch, CURLOPT_WRITEFUNCTION, $curlWriteFunction);
+ }
curl_setopt(
$ch,
CURLOPT_PROGRESSFUNCTION,
- function ($arg0, $arg1, $arg2, $arg3, $arg4 = 0) use ($maxBytes) {
- if (version_compare(phpversion(), '5.5', '<')) {
- // PHP version lower than 5.5
- // Callback has 4 arguments
- $downloaded = $arg1;
- } else {
- // Callback has 5 arguments
- $downloaded = $arg2;
- }
+ function ($arg0, $arg1, $arg2, $arg3, $arg4) use ($maxBytes) {
+ $downloaded = $arg2;
+
// Non-zero return stops downloading
return ($downloaded > $maxBytes) ? 1 : 0;
}
return ! empty($server['HTTPS']);
}
+/**
+ * Get cURL callback function for CURLOPT_WRITEFUNCTION
+ *
+ * @param string $charset to extract from the downloaded page (reference)
+ * @param string $curlGetInfo Optionally overrides curl_getinfo function
+ *
+ * @return Closure
+ */
+function get_curl_header_callback(
+ &$charset,
+ $curlGetInfo = 'curl_getinfo'
+) {
+ $isRedirected = false;
+
+ return function ($ch, $data) use ($curlGetInfo, &$charset, &$isRedirected) {
+ $responseCode = $curlGetInfo($ch, CURLINFO_RESPONSE_CODE);
+ $chunkLength = strlen($data);
+ if (!empty($responseCode) && in_array($responseCode, [301, 302])) {
+ $isRedirected = true;
+ return $chunkLength;
+ }
+ if (!empty($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);
+ }
+
+ return $chunkLength;
+ };
+}
+
/**
* Get cURL callback function for CURLOPT_WRITEFUNCTION
*
&$description,
&$keywords,
$retrieveDescription,
- $curlGetInfo = 'curl_getinfo'
+ $tagsSeparator
) {
- $isRedirected = false;
$currentChunk = 0;
$foundChunk = null;
*
* @return int|bool length of $data or false if we need to stop the download
*/
- return function (&$ch, $data) use (
+ return function ($ch, $data) use (
$retrieveDescription,
- $curlGetInfo,
+ $tagsSeparator,
&$charset,
&$title,
&$description,
&$keywords,
- &$isRedirected,
&$currentChunk,
&$foundChunk
) {
+ $chunkLength = strlen($data);
$currentChunk++;
- $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);
}
$title = html_extract_title($data);
$foundChunk = ! empty($title) ? $currentChunk : $foundChunk;
}
+ if (empty($title)) {
+ $title = html_extract_tag('title', $data);
+ $foundChunk = ! empty($title) ? $currentChunk : $foundChunk;
+ }
if ($retrieveDescription && empty($description)) {
$description = html_extract_tag('description', $data);
$foundChunk = ! empty($description) ? $currentChunk : $foundChunk;
if (! empty($keywords)) {
$foundChunk = $currentChunk;
// Keywords use the format tag1, tag2 multiple words, tag
- // So we format them to match Shaarli's separator and glue multiple words with '-'
- $keywords = implode(' ', array_map(function($keyword) {
- return implode('-', preg_split('/\s+/', trim($keyword)));
- }, explode(',', $keywords)));
+ // So we split the result with `,`, then if a tag contains the separator we replace it by `-`.
+ $keywords = tags_array2str(array_map(function(string $keyword) use ($tagsSeparator): string {
+ return tags_array2str(tags_str2array($keyword, $tagsSeparator), '-');
+ }, tags_str2array($keywords, ',')), $tagsSeparator);
}
}
return false;
}
- return strlen($data);
+ return $chunkLength;
};
}
projects / github / shaarli / Shaarli.git / blobdiff