From 17d5412ef5bdde749ce57dbdd627243eb0d701a8 Mon Sep 17 00:00:00 2001
From: paulr <me@pjr.cc>
Date: Sun, 24 Jul 2011 06:46:57 +1000
Subject: [PATCH] Setting up my convoluted web parsing structure... in short:

call index.php, which loads config and webrequestor

Web requester loads urlparser which then determines the class handling
the page

web requester then calls class->go($url)

class can then call GLCASPageBuilder(class, function, title) which
then builds a static page and then calls class->function(url) to build
the body.

FUN!
---
 libglcas/config.php      |   69 ++++++++++++++++++++++++++++++++++++++++++++++
 libglcas/lib.php         |   49 ++++++++++++++++++++++++++++++++
 libglcas/urlparser.php   |   53 +++++++++++++++++++++++++++++++++++
 libglcas/web.php         |   68 +++++++++++++++++++++++++++++++++++++++++++++
 plugins/admin.php        |   24 ++++++++++++++++
 plugins/glcas_plugin.php |   10 ++++++
 plugins/repo.php         |   18 ++++++++++++
 plugins/webbase.php      |   29 +++++++++++++++++++
 www/.htaccess            |    8 +++++
 www/index.php            |   58 ++++++++++++++++++++++++++++++++++++++
 10 files changed, 386 insertions(+), 0 deletions(-)
 create mode 100644 libglcas/config.php
 create mode 100644 libglcas/lib.php
 create mode 100644 libglcas/urlparser.php
 create mode 100644 libglcas/web.php
 create mode 100644 plugins/admin.php
 create mode 100644 plugins/glcas_plugin.php
 create mode 100644 plugins/repo.php
 create mode 100644 plugins/webbase.php
 create mode 100644 www/.htaccess
 create mode 100644 www/index.php

diff --git a/libglcas/config.php b/libglcas/config.php
new file mode 100644
index 0000000..634b69a
--- /dev/null
+++ b/libglcas/config.php
@@ -0,0 +1,69 @@
+<?php
+
+class GLCASConfig {
+	
+	function __construct()
+	{
+		$this->configPath = "";
+		$this->config = "";
+	}
+	
+	function loadConfig($configpath)
+	{
+		error_log("loadConfig $configpath");
+		$this->configPath = $configpath;
+		$flt = file_get_contents($configpath);
+		$this->config = unserialize(base64_decode($flt));
+		
+		
+	}
+	
+	function setConfigVar($var, $value)
+	{
+		if(is_array($this->config)) {
+			foreach($this->config as $vkey => $val) {
+				if($vkey == "$var") {
+					error_log("reset config of $var to $value");
+					$this->config[$var] = $value;
+					return true;
+				}
+			}
+		} else error_log("config isnt array");
+		
+		// otherwise, set it
+		error_log("set config of $var to $value");
+		$this->config[$var] = $value;
+	}
+	
+	function delConfigVar($var)
+	{
+		if(is_array($this->config)) {
+			foreach($this->config as $vkey => $val) {
+				if($vkey == "$var") {
+					error_log("remove config of $var to $value");
+					unset($this->config[$var]);
+					return true;
+				}
+			}
+		} else error_log("config isnt array");
+	}
+	
+	function saveConfig()
+	{
+		file_put_contents($this->configPath, base64_encode(serialize($this->config)));
+	}
+	
+	function debug()
+	{
+		echo "<pre>";
+		echo "path: ".$this->configPath."\n";
+		print_r($this->config);
+		echo "</pre>";
+	}
+	
+	private $configPath;
+	private $config;
+	
+}
+
+?>
\ No newline at end of file
diff --git a/libglcas/lib.php b/libglcas/lib.php
new file mode 100644
index 0000000..05811a6
--- /dev/null
+++ b/libglcas/lib.php
@@ -0,0 +1,49 @@
+<?php
+/*
+ * 
+ * The Main lib.php file.
+ * 
+ */
+
+//require_once();
+
+// get the lib root, and set include path from it
+$LIB_ROOT_FS = realpath(dirname(__FILE__));
+global $LIB_ROOT_FS;
+
+/*
+ * I shouldnt ever need to do this bit, but its here, just in case
+$adpath = realpath($LIB_ROOT_FS."/../");
+error_log("added libglcas path as $adpath");
+set_include_path(get_include_path().PATH_SEPARATOR.$adpath);
+
+*/
+require_once("libglcas/urlparser.php");
+require_once("libglcas/web.php");
+require_once("libglcas/config.php");
+
+function glcas_pluginLoader($path="")
+{
+	global $LIB_ROOT_FS;
+	if($path ==  "") {
+		// try and find it
+		$plpath = realpath($LIB_ROOT_FS."/../plugins/");
+		if(file_exists($plpath."/glcas_plugin.php")) {
+			// here it is, load away
+			error_log("attempting to load plugins from $plpath");
+			$dh = opendir("$plpath");
+			if($dh) {
+				while(($file = readdir($dh))!==false) {
+					$mt = preg_match("/.*.php$/", $file);
+					if($mt > 0) {
+						error_log("loading plugin $file");
+						require_once("$plpath/$file");
+						//echo "required $basedir/$file\n";
+					}
+				}
+			}			
+		}
+	}
+}
+
+?>
\ No newline at end of file
diff --git a/libglcas/urlparser.php b/libglcas/urlparser.php
new file mode 100644
index 0000000..89c9bb1
--- /dev/null
+++ b/libglcas/urlparser.php
@@ -0,0 +1,53 @@
+<?php
+
+// the purpose of this plugin is to take a url and figure out the owning class that should be called
+error_log("glcasurlparser loaded");
+
+class GLCASUrlParser {
+	function __construct($urlconfig, $config)
+	{
+		$v = print_r($urlconfig, true);
+		error_log("constructor for urlparser, $v");
+		$this->urlClasses = $urlconfig;
+		$this->config = $config;
+	}
+	
+	function getClass($url)
+	{
+		error_log("getclass for $url");
+		//echo "<pre>URL CLasses";
+		//print_r($this->urlClasses);
+		//echo "</pre>";
+		$default = "";
+		$base = "";
+		if(is_array($this->urlClasses)) {
+			foreach($this->urlClasses as $key => $val) {
+				error_log("checking url $url against $key, $val");
+				if($url == "/") {
+					$base = $val;
+					error_log("base set to $val");
+					return new $val($this->config);
+				} 
+				
+				// TODO: this is quite messy really, need to think about how i do /'s in urls for url parsers
+				if($key=="*") {
+					$default = $val;
+					error_log("catchall set to $val");
+				} else if($key != "/") {
+					// now the rest
+					if(preg_match("/$key/", $url)) {
+						error_log("matched $url to $key and $val");
+						return new $val($this->config);
+					}
+				}
+			}
+		}
+		error_log("get class returns default");
+		return new $default($this->config);
+	}
+	
+	private $urlClasses;
+	private $config;
+}
+
+?>
\ No newline at end of file
diff --git a/libglcas/web.php b/libglcas/web.php
new file mode 100644
index 0000000..6c3723b
--- /dev/null
+++ b/libglcas/web.php
@@ -0,0 +1,68 @@
+<?php 
+
+// if i believed in name spacing in php, i'd use it.
+error_log("glcasweb loaded");
+
+class GLCASWeb {
+	
+	function __construct($config)
+	{
+		$this->config = $config;
+	}
+	
+	function go($urlhandlers)
+	{
+		$url = "/";
+		if(isset($_REQUEST["q"])) {
+			$url = $_REQUEST["q"];
+		}
+		
+		// create a url parser
+		$urlparser = new GLCASUrlParser($urlhandlers, $this->config);
+		
+		// 
+		$call_class = $urlparser->getClass($url);
+		$call_class->go($url);
+	}
+	
+	private $config;
+	
+}
+
+function GLCASpageBuilder($bodyClass, $bodyFunction, $title="GLCAS")
+{
+	global $WEB_ROOT_FS;
+	
+	// TODO: load css
+	// TODO: load js
+	// header
+	echo "<html><title>$title</title><body>";
+	
+	// page top
+	echo "<h1>GLCAS</h1><br>";
+	echo "<table><tr><td>messages go here<td></tr><tr><td>";
+	
+	// menu, then body
+	echo "<table><tr><td>Menu goes here</td></tr><tr><td>";
+	// body
+	$url = "/";
+	if(isset($_REQUEST["q"])) {
+		$url = $_REQUEST["q"];
+	}
+	
+	if($bodyClass != null) {
+		$bodyClass->$bodyFunction($url);
+	} else $bodyFunction($url);
+	echo "</td></tr></table>";
+	
+	
+	// close the big wrap-around table
+	echo "</td></tr></table>";
+	
+	// footer
+	echo "<br><font size=\"-1\">Copyright 2011, PJR</font><br></body></html>";
+	
+}
+
+
+?>
\ No newline at end of file
diff --git a/plugins/admin.php b/plugins/admin.php
new file mode 100644
index 0000000..4e24665
--- /dev/null
+++ b/plugins/admin.php
@@ -0,0 +1,24 @@
+<?php 
+
+error_log("admin loaded");
+
+global $URL_HANDLERS;
+$URL_HANDLERS["admin.*"] = "GLCASAdmin";
+
+class GLCASAdmin {
+	function __construct($config)
+	{
+		$this->config = $config;
+		error_log("constructor for GLCASAdmin");
+		
+	}
+	
+	function go($url)
+	{
+		echo "admin page";
+	}
+	
+	private $config;
+}
+
+?>
\ No newline at end of file
diff --git a/plugins/glcas_plugin.php b/plugins/glcas_plugin.php
new file mode 100644
index 0000000..c0d36b4
--- /dev/null
+++ b/plugins/glcas_plugin.php
@@ -0,0 +1,10 @@
+<?php
+
+// this is a plugin just to show the plugin path.
+error_log("glcase_plugin loaded");
+
+global $URL_HANDLERS;
+
+$URL_HANDLERS["repo"] = "repo";
+
+?>
\ No newline at end of file
diff --git a/plugins/repo.php b/plugins/repo.php
new file mode 100644
index 0000000..804a5ce
--- /dev/null
+++ b/plugins/repo.php
@@ -0,0 +1,18 @@
+<?php
+$URL_HANDLERS["*"] = "GLCASRepo";
+
+class GLCASRepo {
+	function __construct($config)
+	{
+		$this->config = $config;
+	}
+	
+	function go($url)
+	{
+		echo "i am the repo man, i repo the repo";
+	}
+	
+	private $config;
+}
+
+?>
\ No newline at end of file
diff --git a/plugins/webbase.php b/plugins/webbase.php
new file mode 100644
index 0000000..13dbcc3
--- /dev/null
+++ b/plugins/webbase.php
@@ -0,0 +1,29 @@
+<?php 
+
+global $URL_HANDLERS;
+$URL_HANDLERS["/"] = "GLCASWebBase";
+
+
+class GLCASWebBase {
+	function __construct($config)
+	{
+		$this->config = $config;
+		error_log("construct GLCASWebBase");
+	}
+	
+	function go($url)
+	{
+		error_log("go GLCASWebBase");
+		GLCASpageBuilder($this, "body");
+	}
+	
+	function body($url)
+	{
+		echo "i am disturbing";
+	}
+	
+	private $config;
+}
+
+
+?>
\ No newline at end of file
diff --git a/www/.htaccess b/www/.htaccess
new file mode 100644
index 0000000..e1f7b2e
--- /dev/null
+++ b/www/.htaccess
@@ -0,0 +1,8 @@
+RewriteEngine on
+RewriteBase /src/eclipse-workspace/glcas/www/ 
+RewriteRule ^index\.php.* - [L]
+RewriteRule ^soap\.php.* - [L]
+RewriteCond %{REQUEST_FILENAME} !-f
+RewriteCond %{REQUEST_FILENAME} !-d
+RewriteRule ^(.*)$ index.php?q=$1 [L,QSA]
+
diff --git a/www/index.php b/www/index.php
new file mode 100644
index 0000000..4657e52
--- /dev/null
+++ b/www/index.php
@@ -0,0 +1,58 @@
+<?php
+
+$WEB_ROOT_FS = realpath(dirname(__FILE__));
+
+global $WEB_ROOT_FS, $URL_HANDLERS;
+
+// add libglcas as if it were a path in ../libglcas
+if(file_exists("../libglcas")) {
+	$path = realpath($WEB_ROOT_FS."/../");
+	error_log("added glcas path as $path");
+	set_include_path(get_include_path().PATH_SEPARATOR.$path);
+}
+
+// include the based library
+require_once("libglcas/lib.php");
+
+// load plugins
+glcas_pluginLoader();
+
+// find our config
+$configpath = "";
+
+// TODO: do this better
+if(file_exists($WEB_ROOT_FS."/../var")) {
+	
+	// is it there?
+	if(file_exists($WEB_ROOT_FS."/../var/glcas/webconfig")) {
+		$configpath = realpath("$WEB_ROOT_FS/../var/glcas/webconfig");
+	} else {	
+		// if not, attempt to create
+		if(!file_exists($WEB_ROOT_FS."/../var/glcas")) {
+			mkdir($WEB_ROOT_FS."/../var/glcas");
+		}
+		// success!
+		touch("$WEB_ROOT_FS/../var/glcas/webconfig");
+		$configpath = realpath("$WEB_ROOT_FS/../var/glcas/webconfig");
+	}
+}
+
+
+$glconfig = new GLCASConfig();
+$glconfig->loadConfig($configpath);
+$webResponder = new GLCASWeb($glconfig);
+$webResponder->go($URL_HANDLERS);
+/*
+
+echo "<pre>";
+$vars = get_defined_vars();
+foreach($vars as $var => $vkey) {
+	echo "VAR $var is:\n";
+	var_dump($$var);
+	echo "\n\n";
+}
+
+echo "</pre>";
+/**/
+
+?>
\ No newline at end of file
-- 
1.7.0.4