silverstripe-docsviewer/code/DocumentationViewer.php

422 lines
11 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',
'fr', // better way of handling this?
'en'
);
static $casting = array(
'Version' => 'Text',
'Lang' => 'Text',
'Module' => 'Text',
'LanguageTitle' => 'Text'
);
function init() {
parent::init();
$canAccess = (Director::isDev() || Director::is_cli() || Permission::check("ADMIN"));
if(!$canAccess) return Security::permissionFailure($this);
}
/**
* 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) {
$this->Version = $request->shift();
$this->Lang = $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($this->Version)) {
// not numeric so /en/sapphire/folder/page
if(isset($this->Lang) && $this->Lang)
array_unshift($this->Remaining, $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->Remaining) {
$params = count(array_unique($this->Remaining));
switch($params) {
case '1':
return parent::getViewer('home');
case '2':
return parent::getViewer('folder');
default:
if($module = $this->getModule()) {
$params = $this->Remaining;
array_shift($params);
$path = implode('/', array_unique($params));
}
if(is_dir($module->getPath() . $path)) return parent::getViewer('folder');
}
}
return parent::getViewer($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) {
// build the dataset. Load the $Content from an index.md
$output->push(new ArrayData(array(
'Title' => $module->getTitle(),
'Code' => $module,
'Content' => DocumentationParser::parse($module->getPath(), array('index'))
)));
}
}
return $output;
}
/**
* Get the currently accessed entity from the site.
*
* @return false|DocumentationEntity
*/
function getModule() {
if($this->Remaining && is_array($this->Remaining)) {
return DocumentationService::is_registered_module($this->Remaining[0], $this->Version, $this->Lang);
}
return false;
}
/**
* Get the related pages to this module and the children to those pages
*
* @todo this only handles 2 levels. Could make it recursive
*
* @return false|DataObjectSet
*/
function getModulePages() {
if($module = $this->getModule()) {
$pages = DocumentationParser::get_pages_from_folder($module->getPath());
if($pages) {
foreach($pages as $page) {
$linkParts = array($module->getModuleFolder());
// 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[1])) {
if(strtolower($this->Remaining[1]) == $page->Filename) {
$page->LinkingMode = 'current';
if(is_dir($page->Path)) {
$children = DocumentationParser::get_pages_from_folder($page->Path);
$segments = array($module->getModuleFolder(), $this->Remaining[1]);
foreach($children as $child) {
$child->Link = $this->Link(array_merge($segments, array($child->Filename)));
}
$page->Children = $children;
}
}
}
}
}
return $pages;
}
return false;
}
/**
* Return the content for the page. If its an actual documentation page then
* display the content from the page, otherwise display the contents from
* the index.md file if its a folder
*
* @return HTMLText
*/
function getContent() {
if($module = $this->getModule()) {
// name of the module. Throw it away since we already have the module path.
$filepath = $this->Remaining;
array_shift($filepath);
return DocumentationParser::parse($module->getPath(), $filepath);
}
return false;
}
/**
* Generate a list of breadcrumbs for the user. Based off the remaining params
* in the url
*
* @return DataObjectSet
*/
function getBreadcrumbs() {
$pages = $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 $page => $title) {
if($title) {
$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();
// @todo
$loc = 'dev/docs/';
$version = ($this->Version) ? $this->Version . '/' : false;
$lang = ($this->Lang) ? $this->Lang .'/' : false;
$action = '';
if(is_string($path)) $action = $path . '/';
if(is_array($path)) {
foreach($path as $key => $value) {
if($value) {
$action .= $value .'/';
}
}
}
return $base . $loc . $version . $lang . $action;
}
/**
* Build the language dropdown.
*
* @todo do this on a page by page rather than global
*
* @return Form
*/
function LanguageForm() {
if($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());
}
}