Source for file jSignificantUrlsCompiler.class.php

Documentation is available at jSignificantUrlsCompiler.class.php

<?php
/**
* @package jelix
* @subpackage urls_engine
* @author Laurent Jouanneau
* @contributor Thibault Piront (nuKs)
* @link http://www.jelix.org
* @licence GNU Lesser General Public Licence see LICENCE file or http://www.gnu.org/licenses/lgpl.html
*/
class significantUrlInfoParsing {
public $entryPoint = '';
public $entryPointUrl = '';
public $isHttps = false;
public $isDefault = false;
public $action = '';
public $module = '';
public $actionOverride = false;
public $requestType = '';
public $statics = array();
public $params = array();
public $escapes = array();
function __construct($rt, $ep, $isDefault, $isHttps) {
$this->requestType = $rt;
$this->entryPoint = $this->entryPointUrl = $ep;
$this->isDefault = $isDefault;
$this->isHttps = $isHttps;
}
function getFullSel() {
if ($this->action) {
$act = $this->action;
if (substr($act,-1) == ':') // this is a rest action
// we should add index because jSelectorAct resolve a "ctrl:" as "ctrl:index"
// and then create the corresponding selector so url create infos will be found
$act .= 'index';
}
else
$act = '*';
return $this->module.'~'.$act.'@'.$this->requestType;
}
}
/**
* Compiler for significant url engine
* @package jelix
* @subpackage urls_engine
*/
class jSignificantUrlsCompiler implements jISimpleCompiler{
protected $requestType;
protected $defaultUrl;
protected $parseInfos;
protected $createUrlInfos;
protected $createUrlContent;
protected $checkHttps = true;
protected $typeparam = array('string'=>'([^\/]+)','char'=>'([^\/])', 'letter'=>'(\w)',
'number'=>'(\d+)', 'int'=>'(\d+)', 'integer'=>'(\d+)', 'digit'=>'(\d)',
'date'=>'([0-2]\d{3}\-(?:0[1-9]|1[0-2])\-(?:[0-2][1-9]|3[0-1]))',
'year'=>'([0-2]\d{3})', 'month'=>'(0[1-9]|1[0-2])', 'day'=>'([0-2][1-9]|[1-2]0|3[0-1])',
'path'=>'(.*)'
);
/**
*
*/
public function compile($aSelector) {
$sourceFile = $aSelector->getPath();
$cachefile = $aSelector->getCompiledFilePath();
$xml = simplexml_load_file ($sourceFile);
if (!$xml) {
return false;
}
/*
<urls>
<classicentrypoint name="index" default="true">
<url pathinfo="/test/:mois/:annee" module="" action="">
<param name="mois" escape="true" regexp="\d{4}"/>
<param name="annee" escape="false" />
<static name="bla" value="cequejeveux" />
</url>
<url handler="" module="" action="" />
</classicentrypoint>
</urls>
The compiler generates two files.
It generates a php file for each entrypoint. A file contains a $PARSE_URL
array:
$PARSE_URL = array($isDefault, $infoparser, $infoparser, ... )
where:
$isDefault: true if it is the default entry point. In this case and
where the url parser doesn't find a corresponding action, it will
ignore else it will generate an error
$infoparser = array('module','action', 'regexp_pathinfo',
'handler selector', array('secondaries','actions'),
false // needs https or not
)
or
$infoparser = array('module','action','regexp_pathinfo',
array('year','month'), // list of dynamic value included in the url,
// alphabetical ascendant order
array(true, false), // list of boolean which indicates for each
// dynamic value, if it is an escaped value or not
array('bla'=>'whatIWant' ), // list of static values
array('secondaries','actions'),
false // need https or not
)
It generates an other file common to all entry point. It contains an
array which contains informations to create urls
$CREATE_URL = array(
'news~show@classic' => // the action selector
array(0,'entrypoint', https true/false, 'handler selector')
or
array(1,'entrypoint', https true/false,
array('year','month',), // list of dynamic values included in the url
array(true, false..), // list of integer which indicates for each
// dynamic value: 0: urlencode, 1:urlencode except '/', 2:escape
"/news/%1/%2/", // the url
array('bla'=>'whatIWant' ) // list of static values
)
or
When there are several urls to the same action, it is an array of this kind of the previous array:
array(4, array(1,...), array(1,...)...)
or
array(2,'entrypoint', https true/false), // for the patterns "@request"
or
array(3,'entrypoint', https true/false), // for the patterns "module~@request"
*/
$this->createUrlInfos = array();
$this->createUrlContent = "<?php \n";
$this->readProjectXml();
$this->retrieveModulePaths(jApp::configPath('defaultconfig.ini.php'));
// for an app on a simple http server behind an https proxy, we shouldn't check HTTPS
$this->checkHttps = $GLOBALS['gJConfig']->urlengine['checkHttpsOnParsing'];
foreach ($xml->children() as $tagname => $tag) {
if (!preg_match("/^(.*)entrypoint$/", $tagname, $m)) {
//TODO : error
continue;
}
$type = $m[1];
if ($type == '') {
if (isset($tag['type']))
$type = (string)$tag['type'];
if ($type == '')
$type = 'classic';
}
$this->defaultUrl = new significantUrlInfoParsing (
$type,
(string)$tag['name'],
(isset($tag['default']) ? (((string)$tag['default']) == 'true'):false),
(isset($tag['https']) ? (((string)$tag['https']) == 'true'):false)
);
if (isset($tag['noentrypoint']) && (string)$tag['noentrypoint'] == 'true')
$this->defaultUrl->entryPointUrl = '';
$optionalTrailingSlash = (isset($tag['optionalTrailingSlash']) && $tag['optionalTrailingSlash'] == 'true');
$this->parseInfos = array($this->defaultUrl->isDefault);
//let's read the modulesPath of the entry point
$this->retrieveModulePaths($this->getEntryPointConfig($this->defaultUrl->entryPoint));
// if this is the default entry point for the request type,
// then we add a rule which will match urls which are not
// defined.
if ($this->defaultUrl->isDefault) {
$this->createUrlInfos['@'.$this->defaultUrl->requestType] = array(2, $this->defaultUrl->entryPoint, $this->defaultUrl->isHttps);
}
$createUrlInfosDedicatedModules = array();
$parseContent = "<?php \n";
foreach ($tag->children() as $tagname => $url) {
$u = clone $this->defaultUrl;
$u->module = (string)$url['module'];
if (isset($url['https'])) {
$u->isHttps = (((string)$url['https']) == 'true');
}
if (isset($url['noentrypoint']) && ((string)$url['noentrypoint']) == 'true') {
$u->entryPointUrl = '';
}
if (isset($url['include'])) {
$this->readInclude($url, $u);
continue;
}
// in the case of a non default entry point, if there is just an
// <url module="" />, so all actions of this module will be assigned
// to this entry point.
if (!$u->isDefault && !isset($url['action']) && !isset($url['handler'])) {
$this->parseInfos[] = array($u->module, '', '/.*/', array(),
array(), array(), false,
($this->checkHttps && $u->isHttps));
$createUrlInfosDedicatedModules[$u->getFullSel()] = array(3, $u->entryPointUrl, $u->isHttps, true);
continue;
}
$u->action = (string)$url['action'];
if (strpos($u->action, ':') === false) {
$u->action = 'default:'.$u->action;
}
if (isset($url['actionoverride'])) {
$u->actionOverride = preg_split("/[\s,]+/", (string)$url['actionoverride']);
foreach ($u->actionOverride as &$each) {
if (strpos($each, ':') === false) {
$each = 'default:'.$each;
}
}
}
// if there is an indicated handler, so, for the given module
// (and optional action), we should call the given handler to
// parse or create an url
if (isset($url['handler'])) {
$this->newHandler($u, $url);
continue;
}
// parse dynamic parameters
if (isset($url['pathinfo'])) {
$path = (string)$url['pathinfo'];
$regexppath = $this->extractDynamicParams($url, $path, $u);
}
else {
$regexppath = '.*';
$path = '';
}
$tempOptionalTrailingSlash = $optionalTrailingSlash;
if (isset($url['optionalTrailingSlash'])) {
$tempOptionalTrailingSlash = ($url['optionalTrailingSlash'] == 'true');
}
if ($tempOptionalTrailingSlash) {
if (substr($regexppath, -1) == '/') {
$regexppath .= '?';
}
else {
$regexppath .= '\/?';
}
}
// parse static parameters
foreach ($url->static as $var) {
$u->statics[(string)$var['name']] = (string)$var['value'];
}
$this->parseInfos[] = array($u->module, $u->action, '!^'.$regexppath.'$!',
$u->params, $u->escapes, $u->statics,
$u->actionOverride, ($this->checkHttps && $u->isHttps));
$this->appendUrlInfo($u, $path, false);
if ($u->actionOverride) {
foreach ($u->actionOverride as $ao) {
$u->action = $ao;
$this->appendUrlInfo($u, $path, true);
}
}
}
$c = count($createUrlInfosDedicatedModules);
foreach ($createUrlInfosDedicatedModules as $k=>$inf) {
if ($c > 1)
$inf[3] = false;
$this->createUrlInfos[$k] = $inf;
}
$parseContent .= '$GLOBALS[\'SIGNIFICANT_PARSEURL\'][\''.rawurlencode($this->defaultUrl->entryPoint).'\'] = '
.var_export($this->parseInfos, true).";\n?>";
jFile::write(jApp::tempPath('compiled/urlsig/'.$aSelector->file.'.'.rawurlencode($this->defaultUrl->entryPoint).'.entrypoint.php'),$parseContent);
}
$this->createUrlContent .= '$GLOBALS[\'SIGNIFICANT_CREATEURL\'] ='.var_export($this->createUrlInfos, true).";\n?>";
jFile::write(jApp::tempPath('compiled/urlsig/'.$aSelector->file.'.creationinfos.php'), $this->createUrlContent);
return true;
}
protected function readProjectXml() {
$xml = simplexml_load_file(jApp::appPath('project.xml'));
foreach ($xml->entrypoints->entry as $entrypoint) {
$file = (string)$entrypoint['file'];
if (substr($file, -4) != '.php')
$file.='.php';
$configFile = (string)$entrypoint['config'];
$this->entryPoints[$file] = $configFile;
}
}
protected function getEntryPointConfig($entrypoint) {
if (substr($entrypoint, -4) != '.php')
$entrypoint.='.php';
if (!isset($this->entryPoints[$entrypoint]))
throw new Exception('The entry point "'.$entrypoint.'" is not declared into project.xml');
return jApp::configPath($this->entryPoints[$entrypoint]);
}
/**
* list all entry points and their config
*/
protected $entryPoints = array();
/**
* list all modules repository
*/
protected $modulesRepositories = array();
/**
* list all modules path
*/
protected $modulesPath = array();
/**
* since urls.xml declare all entrypoints, current entry point does not have
* access to all modules, so doesn't know all their paths.
* this method retrieve all module paths declared in the configuration
* of an entry point or the global configuration
* @param string $configFile the config file name
*/
protected function retrieveModulePaths($configFile) {
$conf = parse_ini_file($configFile);
if (!array_key_exists('modulesPath',$conf))
return;
$list = preg_split('/ *, */',$conf['modulesPath']);
array_unshift($list, JELIX_LIB_PATH.'core-modules/');
foreach($list as $k=>$path){
if(trim($path) == '') continue;
$p = str_replace(array('lib:','app:'), array(LIB_PATH, jApp::appPath()), $path);
if (!file_exists($p)) {
continue;
}
if (substr($p,-1) !='/')
$p.='/';
if (isset($this->modulesRepositories[$p]))
continue;
$this->modulesRepositories[$p] = true;
if ($handle = opendir($p)) {
while (false !== ($f = readdir($handle))) {
if ($f[0] != '.' && is_dir($p.$f)) {
$this->modulesPath[$f]=$p.$f.'/';
}
}
closedir($handle);
}
}
}
/**
* @param significantUrlInfoParsing $u
* @param simpleXmlElement $url
*/
protected function newHandler($u, $url, $pathinfo = '') {
$class = (string)$url['handler'];
// we must have a module name in the selector, because, during the parsing of
// the url in the request process, we are not still in a module context
$p = strpos($class,'~');
if ($p === false)
$selclass = $u->module.'~'.$class;
elseif ($p == 0)
$selclass = $u->module.$class;
else
$selclass = $class;
$s = new jSelectorUrlHandler($selclass);
if (!isset($url['action'])) {
$u->action = '*';
}
$regexp = '';
if (isset($url['pathinfo'])) {
$pathinfo .= '/'.trim((string)$url['pathinfo'], '/');
}
if ($pathinfo != '/') {
$regexp = '!^'.preg_quote($pathinfo, '!').'(/.*)?$!';
}
$this->createUrlContent .= "include_once('".$s->getPath()."');\n";
$this->parseInfos[] = array($u->module, $u->action, $regexp, $selclass, $u->actionOverride, ($this->checkHttps && $u->isHttps));
$this->createUrlInfos[$u->getFullSel()] = array(0, $u->entryPointUrl, $u->isHttps, $selclass, $pathinfo);
if ($u->actionOverride) {
foreach ($u->actionOverride as $ao) {
$u->action = $ao;
$this->createUrlInfos[$u->getFullSel()] = array(0, $u->entryPointUrl, $u->isHttps, $selclass, $pathinfo);
}
}
}
/**
* extract all dynamic parts of a pathinfo
* @param simpleXmlElement $url the url element
* @param string $regexppath the path info
* @param significantUrlInfoParsing $u
* @return string the correponding regular expression
*/
protected function extractDynamicParams($url, $regexppath, $u) {
$regexppath = preg_quote($regexppath , '!');
if (preg_match_all("/\\\:([a-zA-Z_]+)/", $regexppath, $m, PREG_PATTERN_ORDER)) {
$u->params = $m[1];
// process parameters which are declared in a <param> element
foreach ($url->param as $var) {
$name = (string) $var['name'];
$k = array_search($name, $u->params);
if ($k === false) {
// TODO error
continue;
}
$type = '';
if (isset($var['type'])) {
$type = (string)$var['type'];
if (isset($this->typeparam[$type]))
$regexp = $this->typeparam[$type];
else
$regexp = '([^\/]+)';
}
elseif (isset ($var['regexp'])) {
$regexp = '('.(string)$var['regexp'].')';
}
else {
$regexp = '([^\/]+)';
}
if ($type == 'path') {
$u->escapes[$k] = 1;
}
else if (isset($var['escape'])) {
$u->escapes[$k] = (((string)$var['escape']) == 'true'?2:0);
}
else {
$u->escapes[$k] = 0;
}
$regexppath = str_replace('\:'.$name, $regexp, $regexppath);
}
// process parameters that are only declared in the pathinfo
foreach ($u->params as $k=>$name) {
if (isset($u->escapes[$k])) {
continue;
}
$u->escapes[$k] = 0;
$regexppath = str_replace('\:'.$name, '([^\/]+)', $regexppath);
}
}
return $regexppath;
}
/**
* register the given url informations
* @param significantUrlInfoParsing $u
* @param string $path
*/
protected function appendUrlInfo($u, $path, $secondaryAction) {
$cuisel = $u->getFullSel();
$arr = array(1, $u->entryPointUrl, $u->isHttps, $u->params, $u->escapes, $path, $secondaryAction, $u->statics);
if (isset($this->createUrlInfos[$cuisel])) {
if ($this->createUrlInfos[$cuisel][0] == 4) {
$this->createUrlInfos[$cuisel][] = $arr;
}
else {
$this->createUrlInfos[$cuisel] = array(4, $this->createUrlInfos[$cuisel], $arr);
}
}
else {
$this->createUrlInfos[$cuisel] = $arr;
}
}
/**
* @param simpleXmlElement $url
* @param significantUrlInfoParsing $uInfo
*/
protected function readInclude($url, $uInfo) {
$file = (string)$url['include'];
$pathinfo = '/'.trim((string)$url['pathinfo'], '/');
if (!isset($this->modulesPath[$uInfo->module]))
throw new Exception ('urls.xml: the module '.$uInfo->module.' does not exist');
$path = $this->modulesPath[$uInfo->module];
if (!file_exists($path.$file))
throw new Exception ('urls.xml: include file '.$file.' of the module '.$uInfo->module.' does not exist');
$xml = simplexml_load_file ($path.$file);
if (!$xml) {
throw new Exception ('urls.xml: include file '.$file.' of the module '.$uInfo->module.' is not a valid xml file');
}
$optionalTrailingSlash = (isset($xml['optionalTrailingSlash']) && $xml['optionalTrailingSlash'] == 'true');
foreach ($xml->url as $url) {
$u = clone $uInfo;
$u->action = (string)$url['action'];
if (strpos($u->action, ':') === false) {
$u->action = 'default:'.$u->action;
}
if (isset($url['actionoverride'])) {
$u->actionOverride = preg_split("/[\s,]+/", (string)$url['actionoverride']);
foreach ($u->actionOverride as &$each) {
if (strpos($each, ':') === false) {
$each = 'default:'.$each;
}
}
}
// if there is an indicated handler, so, for the given module
// (and optional action), we should call the given handler to
// parse or create an url
if (isset($url['handler'])) {
$this->newHandler($u, $url, $pathinfo);
continue;
}
// parse dynamic parameters
if (isset($url['pathinfo'])) {
$path = $pathinfo.($pathinfo !='/'?'/':'').trim((string)$url['pathinfo'],'/');
$regexppath = $this->extractDynamicParams($url, $path, $u);
}
else {
$regexppath = '.*';
$path = '';
}
$tempOptionalTrailingSlash = $optionalTrailingSlash;
if (isset($url['optionalTrailingSlash'])) {
$tempOptionalTrailingSlash = ($url['optionalTrailingSlash'] == 'true');
}
if ($tempOptionalTrailingSlash) {
if (substr($regexppath, -1) == '/') {
$regexppath .= '?';
}
else {
$regexppath .= '\/?';
}
}
// parse static parameters
foreach ($url->static as $var) {
$u->statics[(string)$var['name']] = (string)$var['value'];
}
$this->parseInfos[] = array($u->module, $u->action, '!^'.$regexppath.'$!',
$u->params, $u->escapes, $u->statics,
$u->actionOverride, ($this->checkHttps && $u->isHttps));
$this->appendUrlInfo($u, $path, false);
if ($u->actionOverride) {
foreach ($u->actionOverride as $ao) {
$u->action = $ao;
$this->appendUrlInfo($u, $path, true);
}
}
}
}
}

Documentation generated on Mon, 19 Sep 2011 14:13:38 +0200 by phpDocumentor 1.4.3