diff --git a/README.md b/README.md index b0e408b..a631a7d 100755 --- a/README.md +++ b/README.md @@ -1,15 +1,15 @@ # Custom Page Headers Symphony Extension -- Version: 1.2 +- Version: 1.2.1 - Author: Henry Singleton -- Build Date: 06 06 2012 -- Requirements: Symphony 2.2.x - Symphony 2.3.x +- Build Date: 29 10 2014 +- Requirements: Symphony 2.2.x - Symphony 2.5.x ## Overview This Symphony CMS extension allows you to define headers by page output. This lets you build headers using data from datasources or other page information. Anything that's accessible from a standard page really! -Great for generating redirect urls for 301/302 redirects if you need information from existing Symphony entries, or want to store redirect stats via an event etc. +Great for generating redirect urls for 301/302 redirects if you need information from existing Symphony entries, or want to store redirect stats via an event etc. ## Installation @@ -32,17 +32,17 @@ Create a new page, give it a page type of 'headers' and save the following as th - + - + HTTP/1.1 301 Moved Permanently Location: http://www.google.com/ - + Here is an exmpale of custom 404 page, implemented in a different way. Note that you'll need to ensure there are two empty lines @@ -50,28 +50,28 @@ between your headers and any page content you want to output (as per the HTTP sp - + - + HTTP/1.0 404 Not Found - + - +

Page not found

- +

Try our homepage

- + - + ## Changelog +- **1.2.1** Updated extension.meta.xml to extend compatibility to Symphony 2.5.x. - **1.2** Fixes bug where page output would be blank if a Symphony page error was generated. - **1.1** Updated extension.meta.xml to include namespace for Symphony 2.3 compatibility. (Thanks to andrewminton) - **1.0** Initial release for internal project. - diff --git a/extension.driver.php b/extension.driver.php index 9c70bd0..32e02ec 100644 --- a/extension.driver.php +++ b/extension.driver.php @@ -1,93 +1,93 @@ 'Page Headers', - 'version' => '1.2', - 'release-date' => '2012-06-06', - 'author' => array( - 'name' => 'Henry Singleton', - 'website' => 'http://henrysingleton.com' - ), - 'description' => 'Allows headers to be output as part of page content, overwriting existing headers.' - ); - } - - public function uninstall() { - return true; - } - - public function install() { - return true; - } - - public function getSubscribedDelegates() { - return array( - array( - 'page' => '/frontend/', - 'delegate' => 'FrontendPageResolved', - 'callback' => 'checkHeadersPageType' - ), - array( - 'page' => '/frontend/', - 'delegate' => 'FrontendOutputPostGenerate', - 'callback' => 'processPageContent' - ) - ); - } - - public function checkheadersPageType($page) { - //Check that the page type has been sent to 'headers' so we only process a page when we need to. - if (is_array($page) && - is_array($page['page_data']) && - array_key_exists('type', $page['page_data']) && - array_search('headers',$page['page_data']['type']) !== false - ) { - $this->headersTrigger = true; - } - } - - public function processPageContent($page) { - //If this page has 'headers' set as a page type, process the content. - if ($this->headersTrigger === true) { - $content = $page['output']; - - if ( - - //If the content is false that means there is likely a symphony error being shown. If so, don't do anything. - $content !== false && - - //Just check that the page content doesn't start with an angle bracket, as that would mean XML/HTML was probably being output and not the sweet juicy headers we crave. - strpos($content, '<') !== 0 && - - //Check we haven't already sent the headers, to avoid nasty PHP error. - !headers_sent() - - ) { - //split response by two consecutive newlines (as per http sepc) - $parts = explode("\n\n", $content); - - //grab the block before the first two newlines, and then split by newlines for each header - $headers = explode("\n",array_shift($parts)); - - if (is_array($headers)) { - - //Send each found header - foreach ($headers as $header) { - header(trim($header)); - } - - //Turn parts back into string, with headers absent due to array_unshift above - $page['output'] = trim(implode("\n", $parts)); - - //If only headers were used in the page output, kill the script now, as we have nothing else to send, and a Symphony error will be generated if the output is empty. - if (strlen($page['output']) === 0) die(); - } - } - } - } - } \ No newline at end of file + + class extension_page_headers extends Extension { + + private $headersTrigger; + + public function about() { + return array( + 'name' => 'Page Headers', + 'version' => '1.2', + 'release-date' => '2012-06-06', + 'author' => array( + 'name' => 'Henry Singleton', + 'website' => 'http://henrysingleton.com' + ), + 'description' => 'Allows headers to be output as part of page content, overwriting existing headers.' + ); + } + + public function uninstall() { + return true; + } + + public function install() { + return true; + } + + public function getSubscribedDelegates() { + return array( + array( + 'page' => '/frontend/', + 'delegate' => 'FrontendPageResolved', + 'callback' => 'checkHeadersPageType' + ), + array( + 'page' => '/frontend/', + 'delegate' => 'FrontendOutputPostGenerate', + 'callback' => 'processPageContent' + ) + ); + } + + public function checkheadersPageType($page) { + //Check that the page type has been sent to 'headers' so we only process a page when we need to. + if (is_array($page) && + is_array($page['page_data']) && + array_key_exists('type', $page['page_data']) && + array_search('headers',$page['page_data']['type']) !== false + ) { + $this->headersTrigger = true; + } + } + + public function processPageContent($page) { + //If this page has 'headers' set as a page type, process the content. + if ($this->headersTrigger === true) { + $content = $page['output']; + + if ( + + //If the content is false that means there is likely a symphony error being shown. If so, don't do anything. + $content !== false && + + //Just check that the page content doesn't start with an angle bracket, as that would mean XML/HTML was probably being output and not the sweet juicy headers we crave. + strpos($content, '<') !== 0 && + + //Check we haven't already sent the headers, to avoid nasty PHP error. + !headers_sent() + + ) { + //split response by two consecutive newlines (as per http sepc) + $parts = explode("\n\n", $content); + + //grab the block before the first two newlines, and then split by newlines for each header + $headers = explode("\n",array_shift($parts)); + + if (is_array($headers)) { + + //Send each found header + foreach ($headers as $header) { + header(trim($header)); + } + + //Turn parts back into string, with headers absent due to array_unshift above + $page['output'] = trim(implode("\n", $parts)); + + //If only headers were used in the page output, kill the script now, as we have nothing else to send, and a Symphony error will be generated if the output is empty. + if (strlen($page['output']) === 0) die(); + } + } + } + } + } diff --git a/extension.meta.xml b/extension.meta.xml index 00fd287..958591d 100644 --- a/extension.meta.xml +++ b/extension.meta.xml @@ -1,20 +1,22 @@ - Page Headers - Customise HTTP headers by standard page output. - https://github.com/henrysingleton/page_headers - - Other - - - - Henry Singleton - http://henrysingleton.com/ - - - - - - - - \ No newline at end of file + Page Headers + Customise HTTP headers by standard page output. + https://github.com/henrysingleton/page_headers + http://www.getsymphony.com/discuss/thread/86515/ + + Other + + + + Henry Singleton + http://henrysingleton.com/ + + + + + + + + +