silverstripe-docsviewer/code/DocumentationViewer.php
2010-08-01 04:46:41 +00:00

487 lines
13 KiB
PHP
Executable File

<?php
/**
* Documentation Viewer.
*
* Reads the bundled markdown files from documentation folders and displays the output (either
* via markdown or plain text)
*
* For more documentation on how to use this class see the documentation in /sapphiredocs/docs folder
*
* To view the documentation in the browser use:
*
* http://yoursite.com/dev/docs/ Which is locked to ADMIN only
*
* @todo - Add ability to have docs on the front end as the main site.
* - Fix Language Selector (enabling it troubles the handleRequest when submitting)
* - SS_HTTPRequest when we ask for 10 params it gives us 10. Could be 10 blank ones.
* It would mean I could save alot of code if it only gave back an array of size X
* up to a maximum of 10...
*
* @package sapphiredocs
*/
class DocumentationViewer extends Controller {
static $allowed_actions = array(
'LanguageForm',
'doLanguageForm',
'handleRequest',
);
static $casting = array(
'Version' => 'Text',
'Lang' => 'Text',
'Module' => 'Text',
'LanguageTitle' => 'Text'
);
/**
* @var String Same as the routing pattern set through Director::addRules().
*/
protected static $link_base = 'dev/docs/';
function init() {
parent::init();
$canAccess = (Director::isDev() || Director::is_cli() || Permission::check("ADMIN"));
if(!$canAccess) return Security::permissionFailure($this);
}
/**
* Overloaded to avoid "action doesnt exist" errors - all URL parts in this
* controller are virtual and handled through handleRequest(), not controller methods.
*/
public function handleAction($request) {
try{
$response = parent::handleAction($request);
} catch(SS_HTTPResponse_Exception $e) {
if(strpos($e->getMessage(), 'does not exist') !== FALSE) {
return $this;
} else {
throw $e;
}
}
return $response;
}
/**
* Handle the url parsing for the documentation. In order to make this
* user friendly this does some tricky things..
*
* The urls which should work
* / - index page
* /en/sapphire - the index page of sapphire (shows versions)
* /2.4/en/sapphire - the docs for 2.4 sapphire.
* /2.4/en/sapphire/installation/
*
* @return SS_HTTPResponse
*/
public function handleRequest(SS_HTTPRequest $request) {
// Workaround for root routing, e.g. Director::addRules(10, array('$Action' => 'DocumentationViewer'))
$this->Version = ($request->param('Action')) ? $request->param('Action') : $request->shift();
$this->Lang = $request->shift();
$this->ModuleName = $request->shift();
$this->Remaining = $request->shift(10);
DocumentationService::load_automatic_registration();
if(isset($this->Version)) {
// check to see if its a valid version. If its not a float then its not actually a version
// its actually a language and it needs to change. So this means we support 2 structures
// /2.4/en/sapphire/page and
// /en/sapphire/page which is a link to the latest one
if(!is_numeric($this->Version)) {
array_unshift($this->Remaining, $this->ModuleName);
// not numeric so /en/sapphire/folder/page
if(isset($this->Lang) && $this->Lang)
$this->ModuleName = $this->Lang;
$this->Lang = $this->Version;
$this->Version = null;
}
else {
// if(!DocumentationService::is_registered_version($this->Version)) {
// $this->httpError(404, 'The requested version could not be found.');
// }
}
}
if(isset($this->Lang)) {
// check to see if its a valid language
// if(!DocumentationService::is_registered_language($this->Lang)) {
// $this->httpError(404, 'The requested language could not be found.');
// }
}
else {
$this->Lang = 'en';
}
return parent::handleRequest($request);
}
/**
* Custom templates for each of the sections.
*/
function getViewer($action) {
// count the number of parameters after the language, version are taken
// into account. This automatically includes ' ' so all the counts
// are 1 more than what you would expect
if($this->ModuleName || $this->Remaining) {
$paramCount = count($this->Remaining);
if($paramCount == 0) {
return parent::getViewer('folder');
}
else if($module = $this->getModule()) {
$params = $this->Remaining;
$path = implode('/', array_unique($params));
if(is_dir($module->getPath() . $path)) return parent::getViewer('folder');
}
}
else {
return parent::getViewer('home');
}
return parent::getViewer($action);
}
/**
* Return all the available languages. Optionally the languages which are
* available for a given module
*
* @param String - The name of the module
* @return DataObjectSet
*/
function getLanguages($module = false) {
$output = new DataObjectSet();
if($module) {
// lookup the module for the available languages
// @todo
}
else {
$languages = DocumentationService::get_registered_languages();
if($languages) {
foreach($languages as $key => $lang) {
if(stripos($_SERVER['REQUEST_URI'], '/'. $this->Lang .'/') === false) {
// no language is in the URL currently. It needs to insert the language
// into the url like /sapphire/install to /en/sapphire/install
//
// @todo
}
$link = str_ireplace('/'.$this->Lang .'/', '/'. $lang .'/', $_SERVER['REQUEST_URI']);
$output->push(new ArrayData(array(
'Title' => $lang,
'Link' => $link
)));
}
}
}
return $output;
}
/**
* Get all the versions loaded into the module. If the project is only displaying from
* the filesystem then they are loaded under the 'Current' namespace.
*
* @todo Only show 'core' versions (2.3, 2.4) versions of the modules are going
* to spam this
*
* @param String $module name of module to limit it to eg sapphire
* @return DataObjectSet
*/
function getVersions($module = false) {
$versions = DocumentationService::get_registered_versions($module);
$output = new DataObjectSet();
foreach($versions as $key => $version) {
// work out the link to this version of the documentation.
//
// @todo Keep the user on their given page rather than redirecting to module.
// @todo Get links working
$linkingMode = ($this->Version == $version) ? 'current' : 'link';
if(!$version) $version = 'Current';
$major = (in_array($version, DocumentationService::get_major_versions())) ? true : false;
$output->push(new ArrayData(array(
'Title' => $version,
'Link' => $_SERVER['REQUEST_URI'],
'LinkingMode' => $linkingMode,
'MajorRelease' => $major
)));
}
return $output;
}
/**
* Generate the module which are to be documented. It filters
* the list based on the current head version. It displays the contents
* from the index.md file on the page to use.
*
* @return DataObject
*/
function getModules($version = false, $lang = false) {
if(!$version) $version = $this->Version;
if(!$lang) $lang = $this->Lang;
$modules = DocumentationService::get_registered_modules($version, $lang);
$output = new DataObjectSet();
if($modules) {
foreach($modules as $module) {
$absFilepath = $module->getPath() . '/index.md';
$relativeFilePath = str_replace($module->getPath(), '', $absFilepath);
if(file_exists($absFilepath)) {
$page = new DocumentationPage(
$relativeFilePath,
$module,
$this->Lang,
$this->Version
);
$content = DocumentationParser::parse($page, $this->Link(array_slice($this->Remaining, -1, -1)));
} else {
$content = '';
}
// build the dataset. Load the $Content from an index.md
$output->push(new ArrayData(array(
'Title' => $module->getTitle(),
'Code' => $module,
'Content' => $content
)));
}
}
return $output;
}
/**
* Get the currently accessed entity from the site.
*
* @return false|DocumentationEntity
*/
function getModule() {
if($this->ModuleName) {
return DocumentationService::is_registered_module($this->ModuleName, $this->Version, $this->Lang);
}
return false;
}
/**
* @return DocumentationPage
*/
function getPage() {
$module = $this->getModule();
if(!$module) return false;
$absFilepath = DocumentationParser::find_page($module->getPath(), $this->Remaining);
if($absFilepath) {
$relativeFilePath = str_replace($module->getPath(), '', $absFilepath);
return new DocumentationPage(
$relativeFilePath,
$module,
$this->Lang,
$this->Version
);
} else {
return false;
}
}
/**
* Get the related pages to this module and the children to those pages
*
* @todo this only handles 2 levels. Could make it recursive
*
* @return false|DataObjectSet
*/
function getModulePages() {
if($module = $this->getModule()) {
$pages = DocumentationParser::get_pages_from_folder($module->getPath());
if($pages) {
foreach($pages as $page) {
$linkParts = array();
// don't include the 'index in the url
if($page->Title != "Index") $linkParts[] = $page->Filename;
$page->Link = $this->Link($linkParts);
$page->LinkingMode = 'link';
$page->Children = false;
if(isset($this->Remaining[0])) {
if(strtolower($this->Remaining[0]) == $page->Filename) {
$page->LinkingMode = 'current';
if(is_dir($page->Path)) {
$children = DocumentationParser::get_pages_from_folder($page->Path);
foreach($children as $child) {
$child->Link = $this->Link(array($this->Remaining[0], $child->Filename));
}
$page->Children = $children;
}
}
}
}
}
return $pages;
}
return false;
}
/**
* Return the content for the page. If its an actual documentation page then
* display the content from the page, otherwise display the contents from
* the index.md file if its a folder
*
* @return HTMLText
*/
function getContent() {
if($page = $this->getPage()) {
// Remove last portion of path (filename), we want a link to the folder base
return DocumentationParser::parse($page, $this->Link(array_slice($this->Remaining, -1, -1)));
}
return false;
}
/**
* Generate a list of breadcrumbs for the user. Based off the remaining params
* in the url
*
* @return DataObjectSet
*/
function getBreadcrumbs() {
$pages = array_merge(array($this->ModuleName), $this->Remaining);;
$output = new DataObjectSet();
// $output->push(new ArrayData(array(
// 'Title' => ($this->Version) ? $this->Version : _t('DocumentationViewer.DOCUMENTATION', 'Documentation'),
// 'Link' => $this->Link()
// )));
if($pages) {
$path = array();
foreach($pages as $i => $title) {
if($title) {
// Don't add module name, already present in Link()
if($i > 0) $path[] = $title;
$output->push(new ArrayData(array(
'Title' => DocumentationParser::clean_page_name($title),
'Link' => $this->Link($path)
)));
}
}
}
return $output;
}
/**
* Return the base link to this documentation location
*
* @todo Make this work on non /dev/
* @return String
*/
public function Link($path = false) {
$base = Director::absoluteBaseURL();
$version = ($this->Version) ? $this->Version . '/' : false;
$lang = ($this->Lang) ? $this->Lang .'/' : false;
$module = ($this->ModuleName) ? $this->ModuleName .'/' : false;
$action = '';
if(is_string($path)) $action = $path . '/';
if(is_array($path)) {
foreach($path as $key => $value) {
if($value) {
$action .= $value .'/';
}
}
}
return $base . self::$link_base . $version . $lang . $module . $action;
}
/**
* Build the language dropdown.
*
* @todo do this on a page by page rather than global
*
* @return Form
*/
function LanguageForm() {
if($module = $this->getModule()) {
$langs = DocumentationService::get_registered_languages($module->getModuleFolder());
}
else {
$langs = DocumentationService::get_registered_languages();
}
$fields = new FieldSet(
$dropdown = new DropdownField(
'LangCode',
_t('DocumentationViewer.LANGUAGE', 'Language'),
$langs,
$this->Lang
)
);
$actions = new FieldSet(
new FormAction('doLanguageForm', _t('DocumentationViewer.CHANGE', 'Change'))
);
$dropdown->setDisabled(true);
return new Form($this, 'LanguageForm', $fields, $actions);
}
/**
* Process the language change
*
*/
function doLanguageForm($data, $form) {
$this->Lang = (isset($data['LangCode'])) ? $data['LangCode'] : 'en';
return $this->redirect($this->Link());
}
/**
* @param String
*/
static function set_link_base($base) {
self::$link_base = $base;
}
/**
* @return String
*/
static function get_link_base() {
return self::$link_base;
}
}