output_javascript() public method

public output_javascript ( )
 public function init()
 {
     if (function_exists('version_compare') && version_compare(PHP_VERSION, '5.0', '<') || !extension_loaded('xml') || !extension_loaded('pcre')) {
         return false;
     } elseif (!extension_loaded('xmlreader')) {
         static $xml_is_sane = null;
         if ($xml_is_sane === null) {
             $parser_check = xml_parser_create();
             xml_parse_into_struct($parser_check, '<foo>&amp;</foo>', $values);
             xml_parser_free($parser_check);
             $xml_is_sane = isset($values[0]['value']);
         }
         if (!$xml_is_sane) {
             return false;
         }
     }
     if (isset($_GET[$this->javascript])) {
         SimplePie_Misc::output_javascript();
         exit;
     }
     $this->sanitize->pass_cache_data($this->cache, $this->cache_location, $this->cache_name_function, $this->cache_class);
     $this->sanitize->pass_file_data($this->file_class, $this->timeout, $this->useragent, $this->force_fsockopen);
     if ($this->feed_url !== null || $this->raw_data !== null) {
         $this->error = null;
         $this->data = array();
         $this->multifeed_objects = array();
         $cache = false;
         if ($this->feed_url !== null) {
             $parsed_feed_url = SimplePie_Misc::parse_url($this->feed_url);
             if ($this->cache && $parsed_feed_url['scheme'] !== '') {
                 $cache = call_user_func(array($this->cache_class, 'create'), $this->cache_location, call_user_func($this->cache_name_function, $this->feed_url), 'spc');
             }
             if ($cache && !$this->xml_dump) {
                 $this->data = $cache->load();
                 if (!empty($this->data)) {
                     if (!isset($this->data['build']) || $this->data['build'] !== SIMPLEPIE_BUILD) {
                         $cache->unlink();
                         $this->data = array();
                     } elseif (isset($this->data['url']) && $this->data['url'] !== $this->feed_url) {
                         $cache = false;
                         $this->data = array();
                     } elseif (isset($this->data['feed_url'])) {
                         if ($cache->mtime() + $this->autodiscovery_cache_duration > time()) {
                             if ($this->data['feed_url'] === $this->data['url']) {
                                 $cache->unlink();
                                 $this->data = array();
                             } else {
                                 $this->set_feed_url($this->data['feed_url']);
                                 return $this->init();
                             }
                         }
                     } elseif ($cache->mtime() + $this->cache_duration < time()) {
                         if (isset($this->data['headers']['last-modified']) || isset($this->data['headers']['etag'])) {
                             $headers = array('Accept' => 'application/atom+xml, application/rss+xml, application/rdf+xml;q=0.9, application/xml;q=0.8, text/xml;q=0.8, text/html;q=0.7, unknown/unknown;q=0.1, application/unknown;q=0.1, */*;q=0.1');
                             if (isset($this->data['headers']['last-modified'])) {
                                 $headers['if-modified-since'] = $this->data['headers']['last-modified'];
                             }
                             if (isset($this->data['headers']['etag'])) {
                                 $headers['if-none-match'] = $this->data['headers']['etag'];
                             }
                             $file = new $this->file_class($this->feed_url, $this->timeout / 10, 5, $headers, $this->useragent, $this->force_fsockopen);
                             if ($file->success) {
                                 if ($file->status_code === 304) {
                                     $cache->touch();
                                     return true;
                                 } else {
                                     $headers = $file->headers;
                                 }
                             } else {
                                 unset($file);
                             }
                         }
                     } else {
                         return true;
                     }
                 } else {
                     $cache->unlink();
                     $this->data = array();
                 }
             }
             if (!isset($file)) {
                 if (is_a($this->file, 'SimplePie_File') && $this->file->url === $this->feed_url) {
                     $file =& $this->file;
                 } else {
                     $headers = array('Accept' => 'application/atom+xml, application/rss+xml, application/rdf+xml;q=0.9, application/xml;q=0.8, text/xml;q=0.8, text/html;q=0.7, unknown/unknown;q=0.1, application/unknown;q=0.1, */*;q=0.1');
                     $file = new $this->file_class($this->feed_url, $this->timeout, 5, $headers, $this->useragent, $this->force_fsockopen);
                 }
             }
             if (!$file->success && !($file->method & SIMPLEPIE_FILE_SOURCE_REMOTE === 0 || ($file->status_code === 200 || $file->status_code > 206 && $file->status_code < 300))) {
                 $this->error = $file->error;
                 if (!empty($this->data)) {
                     return true;
                 } else {
                     return false;
                 }
             }
             if (!$this->force_feed) {
                 $locate = new $this->locator_class($file, $this->timeout, $this->useragent, $this->file_class, $this->max_checked_feeds, $this->content_type_sniffer_class);
                 if (!$locate->is_feed($file)) {
                     unset($file);
                     if ($file = $locate->find($this->autodiscovery, $this->all_discovered_feeds)) {
                         if ($cache) {
                             $this->data = array('url' => $this->feed_url, 'feed_url' => $file->url, 'build' => SIMPLEPIE_BUILD);
                             if (!$cache->save($this)) {
                                 trigger_error("{$this->cache_location} is not writeable. Make sure you've set the correct relative or absolute path, and that the location is server-writable.", E_USER_WARNING);
                             }
                             $cache = call_user_func(array($this->cache_class, 'create'), $this->cache_location, call_user_func($this->cache_name_function, $file->url), 'spc');
                         }
                         $this->feed_url = $file->url;
                     } else {
                         $this->error = "A feed could not be found at {$this->feed_url}. A feed with an invalid mime type may fall victim to this error, or " . SIMPLEPIE_NAME . " was unable to auto-discover it.. Use force_feed() if you are certain this URL is a real feed.";
                         SimplePie_Misc::error($this->error, E_USER_NOTICE, __FILE__, __LINE__);
                         return false;
                     }
                 }
                 $locate = null;
             }
             $headers = $file->headers;
             $data = $file->body;
             $sniffer = new $this->content_type_sniffer_class($file);
             $sniffed = $sniffer->get_type();
         } else {
             $data = $this->raw_data;
         }
         $encodings = array();
         if ($this->input_encoding !== false) {
             $encodings[] = $this->input_encoding;
         }
         $application_types = array('application/xml', 'application/xml-dtd', 'application/xml-external-parsed-entity');
         $text_types = array('text/xml', 'text/xml-external-parsed-entity');
         if (isset($sniffed)) {
             if (in_array($sniffed, $application_types) || substr($sniffed, 0, 12) === 'application/' && substr($sniffed, -4) === '+xml') {
                 if (isset($headers['content-type']) && preg_match('/;\\x20?charset=([^;]*)/i', $headers['content-type'], $charset)) {
                     $encodings[] = strtoupper($charset[1]);
                 }
                 $encodings = array_merge($encodings, SimplePie_Misc::xml_encoding($data));
                 $encodings[] = 'UTF-8';
             } elseif (in_array($sniffed, $text_types) || substr($sniffed, 0, 5) === 'text/' && substr($sniffed, -4) === '+xml') {
                 if (isset($headers['content-type']) && preg_match('/;\\x20?charset=([^;]*)/i', $headers['content-type'], $charset)) {
                     $encodings[] = $charset[1];
                 }
                 $encodings[] = 'US-ASCII';
             } elseif (substr($sniffed, 0, 5) === 'text/') {
                 $encodings[] = 'US-ASCII';
             }
         }
         $encodings = array_merge($encodings, SimplePie_Misc::xml_encoding($data));
         $encodings[] = 'UTF-8';
         $encodings[] = 'ISO-8859-1';
         $encodings = array_unique($encodings);
         if ($this->xml_dump) {
             header('Content-type: text/xml; charset=' . $encodings[0]);
             echo $data;
             exit;
         }
         foreach ($encodings as $encoding) {
             if ($utf8_data = SimplePie_Misc::change_encoding($data, $encoding, 'UTF-8')) {
                 $parser = new $this->parser_class();
                 if ($parser->parse($utf8_data, 'UTF-8')) {
                     $this->data = $parser->get_data();
                     if ($this->get_type() & ~SIMPLEPIE_TYPE_NONE) {
                         if (isset($headers)) {
                             $this->data['headers'] = $headers;
                         }
                         $this->data['build'] = SIMPLEPIE_BUILD;
                         if ($cache && !$cache->save($this)) {
                             trigger_error("{$this->cache_location} is not writeable. Make sure you've set the correct relative or absolute path, and that the location is server-writable.", E_USER_WARNING);
                         }
                         return true;
                     } else {
                         $this->error = "A feed could not be found at {$this->feed_url}. This does not appear to be a valid RSS or Atom feed.";
                         SimplePie_Misc::error($this->error, E_USER_NOTICE, __FILE__, __LINE__);
                         return false;
                     }
                 }
             }
         }
         if (isset($parser)) {
             $this->error = sprintf('This XML document is invalid, likely due to invalid characters. XML error: %s at line %d, column %d', $parser->get_error_string(), $parser->get_current_line(), $parser->get_current_column());
         } else {
             $this->error = 'The data could not be converted to UTF-8. You MUST have either the iconv or mbstring extension installed. Upgrading to PHP 5.x (which includes iconv) is highly recommended.';
         }
         SimplePie_Misc::error($this->error, E_USER_NOTICE, __FILE__, __LINE__);
         return false;
     } elseif (!empty($this->multifeed_url)) {
         $i = 0;
         $success = 0;
         $this->multifeed_objects = array();
         foreach ($this->multifeed_url as $url) {
             $this->multifeed_objects[$i] = clone $this;
             $this->multifeed_objects[$i]->set_feed_url($url);
             $success |= $this->multifeed_objects[$i]->init();
             $i++;
         }
         return (bool) $success;
     } else {
         return false;
     }
 }
 public function init()
 {
     // Check absolute bare minimum requirements.
     if (function_exists('version_compare') && version_compare(PHP_VERSION, '5.0', '<') || !extension_loaded('xml') || !extension_loaded('pcre')) {
         return false;
     } elseif (!extension_loaded('xmlreader')) {
         static $xml_is_sane = null;
         if ($xml_is_sane === null) {
             $parser_check = xml_parser_create();
             xml_parse_into_struct($parser_check, '<foo>&amp;</foo>', $values);
             xml_parser_free($parser_check);
             $xml_is_sane = isset($values[0]['value']);
         }
         if (!$xml_is_sane) {
             return false;
         }
     }
     if (isset($_GET[$this->javascript])) {
         SimplePie_Misc::output_javascript();
         exit;
     }
     // Pass whatever was set with config options over to the sanitizer.
     $this->sanitize->pass_cache_data($this->cache, $this->cache_location, $this->cache_name_function, $this->cache_class);
     $this->sanitize->pass_file_data($this->file_class, $this->timeout, $this->useragent, $this->force_fsockopen);
     if ($this->feed_url !== null || $this->raw_data !== null) {
         $this->error = null;
         $this->data = array();
         $this->multifeed_objects = array();
         $cache = false;
         if ($this->feed_url !== null) {
             $parsed_feed_url = SimplePie_Misc::parse_url($this->feed_url);
             // Decide whether to enable caching
             if ($this->cache && $parsed_feed_url['scheme'] !== '') {
                 $cache = call_user_func(array($this->cache_class, 'create'), $this->cache_location, call_user_func($this->cache_name_function, $this->feed_url), 'spc');
             }
             // If it's enabled and we don't want an XML dump, use the cache
             if ($cache && !$this->xml_dump) {
                 // Load the Cache
                 $this->data = $cache->load();
                 if (!empty($this->data)) {
                     // If the cache is for an outdated build of SimplePie
                     if (!isset($this->data['build']) || $this->data['build'] !== SIMPLEPIE_BUILD) {
                         $cache->unlink();
                         $this->data = array();
                     } elseif (isset($this->data['url']) && $this->data['url'] !== $this->feed_url) {
                         $cache = false;
                         $this->data = array();
                     } elseif (isset($this->data['feed_url'])) {
                         // If the autodiscovery cache is still valid use it.
                         if ($cache->mtime() + $this->autodiscovery_cache_duration > time()) {
                             // Do not need to do feed autodiscovery yet.
                             if ($this->data['feed_url'] === $this->data['url']) {
                                 $cache->unlink();
                                 $this->data = array();
                             } else {
                                 $this->set_feed_url($this->data['feed_url']);
                                 return $this->init();
                             }
                         }
                     } elseif ($cache->mtime() + $this->cache_duration < time()) {
                         // If we have last-modified and/or etag set
                         if (isset($this->data['headers']['last-modified']) || isset($this->data['headers']['etag'])) {
                             $headers = array();
                             if (isset($this->data['headers']['last-modified'])) {
                                 $headers['if-modified-since'] = $this->data['headers']['last-modified'];
                             }
                             if (isset($this->data['headers']['etag'])) {
                                 $headers['if-none-match'] = '"' . $this->data['headers']['etag'] . '"';
                             }
                             $file = new $this->file_class($this->feed_url, $this->timeout / 10, 5, $headers, $this->useragent, $this->force_fsockopen);
                             if ($file->success) {
                                 if ($file->status_code === 304) {
                                     $cache->touch();
                                     return true;
                                 } else {
                                     $headers = $file->headers;
                                 }
                             } else {
                                 unset($file);
                             }
                         }
                     } else {
                         return true;
                     }
                 } else {
                     $cache->unlink();
                     $this->data = array();
                 }
             }
             // If we don't already have the file (it'll only exist if we've opened it to check if the cache has been modified), open it.
             if (!isset($file)) {
                 if (is_a($this->file, 'SimplePie_File') && $this->file->url === $this->feed_url) {
                     $file =& $this->file;
                 } else {
                     $file = new $this->file_class($this->feed_url, $this->timeout, 5, null, $this->useragent, $this->force_fsockopen);
                 }
             }
             // If the file connection has an error, set SimplePie::error to that and quit
             if (!$file->success && !($file->method & SIMPLEPIE_FILE_SOURCE_REMOTE === 0 || ($file->status_code === 200 || $file->status_code > 206 && $file->status_code < 300))) {
                 $this->error = $file->error;
                 if (!empty($this->data)) {
                     return true;
                 } else {
                     return false;
                 }
             }
             if (!$this->force_feed) {
                 // Check if the supplied URL is a feed, if it isn't, look for it.
                 $locate = new $this->locator_class($file, $this->timeout, $this->useragent, $this->file_class, $this->max_checked_feeds, $this->content_type_sniffer_class);
                 if (!$locate->is_feed($file)) {
                     // We need to unset this so that if SimplePie::set_file() has been called that object is untouched
                     unset($file);
                     if ($file = $locate->find($this->autodiscovery, $this->all_discovered_feeds)) {
                         if ($cache) {
                             $this->data = array('url' => $this->feed_url, 'feed_url' => $file->url, 'build' => SIMPLEPIE_BUILD);
                             if (!$cache->save($this)) {
                                 trigger_error("{$this->cache_location} is not writeable. Make sure you've set the correct relative or absolute path, and that the location is server-writable.", E_USER_WARNING);
                             }
                             $cache = call_user_func(array($this->cache_class, 'create'), $this->cache_location, call_user_func($this->cache_name_function, $file->url), 'spc');
                         }
                         $this->feed_url = $file->url;
                     } else {
                         $this->error = "A feed could not be found at {$this->feed_url}. A feed with an invalid mime type may fall victim to this error, or " . SIMPLEPIE_NAME . " was unable to auto-discover it.. Use force_feed() if you are certain this URL is a real feed.";
                         SimplePie_Misc::error($this->error, E_USER_NOTICE, __FILE__, __LINE__);
                         return false;
                     }
                 }
                 $locate = null;
             }
             $headers = $file->headers;
             $data = $file->body;
             $sniffer = new $this->content_type_sniffer_class($file);
             $sniffed = $sniffer->get_type();
         } else {
             $data = $this->raw_data;
         }
         // Set up array of possible encodings
         $encodings = array();
         // First check to see if input has been overridden.
         if ($this->input_encoding !== false) {
             $encodings[] = $this->input_encoding;
         }
         $application_types = array('application/xml', 'application/xml-dtd', 'application/xml-external-parsed-entity');
         $text_types = array('text/xml', 'text/xml-external-parsed-entity');
         // RFC 3023 (only applies to sniffed content)
         if (isset($sniffed)) {
             if (in_array($sniffed, $application_types) || substr($sniffed, 0, 12) === 'application/' && substr($sniffed, -4) === '+xml') {
                 if (isset($headers['content-type']) && preg_match('/;\\x20?charset=([^;]*)/i', $headers['content-type'], $charset)) {
                     $encodings[] = strtoupper($charset[1]);
                 }
                 $encodings = array_merge($encodings, SimplePie_Misc::xml_encoding($data));
                 $encodings[] = 'UTF-8';
             } elseif (in_array($sniffed, $text_types) || substr($sniffed, 0, 5) === 'text/' && substr($sniffed, -4) === '+xml') {
                 if (isset($headers['content-type']) && preg_match('/;\\x20?charset=([^;]*)/i', $headers['content-type'], $charset)) {
                     $encodings[] = $charset[1];
                 }
                 $encodings[] = 'US-ASCII';
             } elseif (substr($sniffed, 0, 5) === 'text/') {
                 $encodings[] = 'US-ASCII';
             }
         }
         // Fallback to XML 1.0 Appendix F.1/UTF-8/ISO-8859-1
         $encodings = array_merge($encodings, SimplePie_Misc::xml_encoding($data));
         $encodings[] = 'UTF-8';
         $encodings[] = 'ISO-8859-1';
         // There's no point in trying an encoding twice
         $encodings = array_unique($encodings);
         // If we want the XML, just output that with the most likely encoding and quit
         if ($this->xml_dump) {
             header('Content-type: text/xml; charset=' . $encodings[0]);
             echo $data;
             exit;
         }
         // Loop through each possible encoding, till we return something, or run out of possibilities
         foreach ($encodings as $encoding) {
             // Change the encoding to UTF-8 (as we always use UTF-8 internally)
             if ($utf8_data = SimplePie_Misc::change_encoding($data, $encoding, 'UTF-8')) {
                 // Create new parser
                 $parser = new $this->parser_class();
                 // If it's parsed fine
                 if ($parser->parse($utf8_data, 'UTF-8')) {
                     $this->data = $parser->get_data();
                     if ($this->get_type() & ~SIMPLEPIE_TYPE_NONE) {
                         if (isset($headers)) {
                             $this->data['headers'] = $headers;
                         }
                         $this->data['build'] = SIMPLEPIE_BUILD;
                         // Cache the file if caching is enabled
                         if ($cache && !$cache->save($this)) {
                             trigger_error("{$this->cache_location} is not writeable. Make sure you've set the correct relative or absolute path, and that the location is server-writable.", E_USER_WARNING);
                         }
                         return true;
                     } else {
                         $this->error = "A feed could not be found at {$this->feed_url}. This does not appear to be a valid RSS or Atom feed.";
                         SimplePie_Misc::error($this->error, E_USER_NOTICE, __FILE__, __LINE__);
                         return false;
                     }
                 }
             }
         }
         if (isset($parser)) {
             // We have an error, just set SimplePie_Misc::error to it and quit
             $this->error = sprintf('This XML document is invalid, likely due to invalid characters. XML error: %s at line %d, column %d', $parser->get_error_string(), $parser->get_current_line(), $parser->get_current_column());
         } else {
             $this->error = 'The data could not be converted to UTF-8. You MUST have either the iconv or mbstring extension installed. Upgrading to PHP 5.x (which includes iconv) is highly recommended.';
         }
         SimplePie_Misc::error($this->error, E_USER_NOTICE, __FILE__, __LINE__);
         return false;
     } elseif (!empty($this->multifeed_url)) {
         $i = 0;
         $success = 0;
         $this->multifeed_objects = array();
         foreach ($this->multifeed_url as $url) {
             if (SIMPLEPIE_PHP5) {
                 // This keyword needs to defy coding standards for PHP4 compatibility
                 $this->multifeed_objects[$i] = clone $this;
             } else {
                 $this->multifeed_objects[$i] = $this;
             }
             $this->multifeed_objects[$i]->set_feed_url($url);
             $success |= $this->multifeed_objects[$i]->init();
             $i++;
         }
         return (bool) $success;
     } else {
         return false;
     }
 }
Beispiel #3
0
<?php

// Start counting time for the page load
$starttime = explode(' ', microtime());
$starttime = $starttime[1] + $starttime[0];
// Include SimplePie
// Located in the parent directory
include_once '../SimplePieAutoloader.php';
include_once '../idn/idna_convert.class.php';
// Create a new instance of the SimplePie object
$feed = new SimplePie();
//$feed->force_fsockopen(true);
if (isset($_GET['js'])) {
    SimplePie_Misc::output_javascript();
    die;
}
// Make sure that page is getting passed a URL
if (isset($_GET['feed']) && $_GET['feed'] !== '') {
    // Strip slashes if magic quotes is enabled (which automatically escapes certain characters)
    if (function_exists('get_magic_quotes_gpc') && get_magic_quotes_gpc()) {
        $_GET['feed'] = stripslashes($_GET['feed']);
    }
    // Use the URL that was passed to the page in SimplePie
    $feed->set_feed_url($_GET['feed']);
}
// Allow us to change the input encoding from the URL string if we want to. (optional)
if (!empty($_GET['input'])) {
    $feed->set_input_encoding($_GET['input']);
}
// Allow us to choose to not re-order the items by date. (optional)
if (!empty($_GET['orderbydate']) && $_GET['orderbydate'] == 'false') {