- My PHP Inside talk for ConFoo

phpinside-confoo11.xml

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+<?xml version="1.0" encoding="utf-8"?>
+<presentation 
+	template="css" 
+	navmode="html"
+	navbarbackground="#4373b4"
+	navbartopiclinks="0"
+	navColor="#f1fbff"
+	logo1=""
+	stylesheet="presentations/slides/ezc/ez.css"
+	backgroundfixed="1" >
+<topic>PHP-GTK</topic>
+<title>PHP Inside</title>
+<event>ConFoo</event>
+<location>Montréal, Canada</location>
+<date>March 10th, 2011</date>
+<speaker>Derick Rethans</speaker>
+<email>derick@php.net</email>
+<url>http://derickrethans.nl/talks.html</url>
+<joindin>http://joind.in/2823</joindin>
+<twitter>derickr</twitter>
+
+<slide>slides/dbus/title.xml</slide>
+<slide>slides/toolbox/me.xml</slide>
+
+<slide>slides/inside/phone.xml</slide>
+<slide>slides/inside/mad.xml</slide>
+<slide>slides/inside/twitter.xml</slide>
+<slide>slides/inside/gtk.xml</slide>
+
+<slide>slides/inside/compile.xml</slide>
+<slide>slides/inside/storage.xml</slide>
+<slide>slides/inside/twitter-experience.xml</slide>
+<slide>slides/inside/twitter-result.xml</slide>
+<!-- INTRODUCTION -->
+<!--
+Photo of phone
+Am I mad?
+First thing: twitter
+So I needed a gui thing
+GTK
+compiling PHP and GTK
+sqlite - slower,indexes are *vital* — say something about keeping track what you've downloaded
+twitter API is rather... unstable
+- you don't have to mock for failures
+- expect to request the same data more often
+- very convoluted JSON returns
+GUI finger design
+5.2 vs 5.3 with GC
+-->
+<slide>slides/inside/tube1.xml</slide>
+<slide>slides/inside/tube2.xml</slide>
+<slide>slides/inside/tube3-scraping.xml</slide>
+<slide>slides/inside/tube4-json-api.xml</slide>
+<slide>slides/inside/tube5-demo.xml</slide>
+<!--
+tube status app
+needs scraping
+really large files
+designed a caching API as a webservice
+- app pulls 1k from that API
+If website structure changes, just adjust the service — all installed apps will continue working
+-->
+<slide>slides/inside/talking-to-hardware.xml</slide>
+<!--<slide>slides/dbus/what-is-dbus.xml</slide>
+<slide>slides/dbus/design-overview.xml</slide>
+<slide>slides/dbus/identifying-objects.xml</slide>-->
+
+<!-- PHP -->
+<slide>slides/dbus/php-dbus-ext.xml</slide>
+<slide>slides/dbus/php-as-client.xml</slide>
+
+<slide>slides/inside/kindle.xml</slide>
+<slide>slides/inside/kindle-warning.xml</slide>
+<slide>slides/inside/kindle-hacking.xml</slide>
+<slide>slides/inside/php-on-kindle.xml</slide>
+<slide>slides/inside/php-on-kindle-cross.xml</slide>
+<slide>slides/inside/kindle-hard-software.xml</slide>
+<slide>slides/inside/kindle-screen.xml</slide>
+<slide>slides/inside/kindle-download-file.xml</slide>
+<slide>slides/inside/kindle-left.xml</slide>
+
+<slide>slides/inside/conclusion.xml</slide>
+
+<slide>slides/dbus/end.xml</slide>
+
+<!--
+SMS, phone, addressbook sucked
+in order to talk to hardware -> dbus
+adding GPS to twitter client
+
+-->
+
+</presentation>

slides/inside/conclusion.xml

@@ -6,6 +6,7 @@
 		<bullet>Bandwidth is a real issue</bullet>
 		<bullet>Lack of APIs</bullet>
 		<bullet>PHP *can* run on them, but whether it's smart is to be seen</bullet>
+		<bullet>Issues with proprietary systems</bullet>
 		<bullet>Next experiment: PHP on Android/WebOS/Meego?</bullet>
 	</list>
 

slides/inside/kindle-download-file.xml

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+<slide>
+<title>Kindle Hacking</title>
+<subtitle>Downloading files from PHP</subtitle>
+
+<image align="center" filename="caution2.jpg"/>
+<div effect="fade-out">
+<list>
+	<bullet>You need to use Amazon's proxy</bullet>
+	<bullet>Each request with the proxy needs to be authenticated, otherwise:
+        <example>HTTP/1.1 403 Forbidden+for+Client%3A+amz%5F2020
+Date: Thu, 03 Mar 2011 20:54:10 GMT
+Content-Type: text/html
+Transfer-Encoding: chunked
+x-kn-retry: 300
+
+a0
+There is a problem with your Kindle account. Please call Customer Service at 1-866-321-8851 or 1-206-266-0927. For UK customers, please call +44(0)800 496 2449.
+0</example>
+    </bullet>
+</list>
+</div>
+
+<div effect="fade-in">
+<example><![CDATA[<?php
+$url = "tcp://87.238.83.84:80";
+
+$fp = stream_socket_client($url, $errno, $errstr, 1);
+if (!$fp) {
+    echo "$errstr ($errno)<br />\n";
+} else {
+    fwrite($fp, <<<ENDREQ
+GET http://derickrethans.nl/ws/tubestatus.ws.php HTTP/1.1\r
+Host: derickrethans.nl\r
+User-Agent: Mozilla/5.0 (Linux; U; en-US) AppleWebKit/528.5+ (KHTML, like Gecko, Safari/528.5+) Version/4.0 Kindle/3.0 (screen 600x800; rotate)\r
+Referer: http://mobile.twitter.com/\r
+Cache-Control: max-age=0\r
+Accept-Encoding: gzip\r
+Accept-Language: en-US\r
+x-fsn: R0pdR...personal-key...qpxX1J\r
+x-kn-appId: BBookletV3\r
+\r
+\r
+ENDREQ
+    );
+    while (!feof($fp)) {
+        echo fgets($fp, 1024);
+    }
+    fclose($fp);
+}?>]]>
+</example>
+</div>
+</slide>

slides/inside/kindle-hacking.xml

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+<slide>
+<title>Kindle Hacking</title>
+
+<image align="center" filename="caution2.jpg"/>
+<break lines="2"/>
+<blurb>In order to get shell, you have to do the following:</blurb>
+<list>
+	<bullet>Install a jailbreak</bullet>
+	<bullet>Install USB networking</bullet>
+	<bullet>Install Launchpad</bullet>
+	<bullet>http://www.mobileread.com/forums/showthread.php?t=88004</bullet>
+</list>
+<break lines="2"/>
+<image align="center" filename="ssh-kindle.jpg"/>
+</slide>

slides/inside/kindle-hard-software.xml

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+<slide>
+<title>Kindle Hacking</title>
+
+<blurb>The Kindle:</blurb>
+<list>
+	<bullet>Runs Linux</bullet>
+	<bullet>Does not run X, but a framebuffer</bullet>
+	<bullet>Has WiFi (and 3G), but requires a proxy to work</bullet>
+</list>
+<break/>
+
+<blurb>Getting GTK to run on framebuffer is a pain, and so far I have
+not managed to get PHP-GTK running on it.</blurb>
+
+<div effect="fade-in">
+<break lines="2"/>
+	<image filename="sad-cat.jpg" attr="http://www.flickr.com/photos/emptysound/3768519920"/>
+</div>
+</slide>

slides/inside/kindle-left.xml

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+<slide>
+<title>Kindle Hacking</title>
+
+<blurb>What is left?</blurb>
+
+<list>
+    <bullet>A PHP extension to talk to the screen</bullet>
+    <bullet>Figure out how to stop the Kindle's main application from running when our own app is going</bullet>
+    <bullet>How to write an interface, and or interface with the keyboard just like the Kindle does</bullet>
+</list>
+</slide>

slides/inside/kindle-screen.xml

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+<slide>
+<title>Kindle Hacking</title>
+<subtitle>Accessing the screen</subtitle>
+
+<div effect="fade-out">
+<list>
+	<bullet>Open framebuffer %/dev/fb0%</bullet>
+	<bullet>mmap the open file</bullet>
+	<bullet>Screen data is stored with every two pixels stored in one byte, in total 800 rows, with 300 bytes per row (600 pixels)</bullet>
+</list>
+<example>
+(40 more)
+66 55 55 65 66 54 45 68 CF FF (290 more)
+77 77 66 78 77 65 65 55 7B FF (290 more)
+(858 more)
+
+7B =  0111 1011
+      `--´ `--´
+       |     `---- 2nd nibble: 11/15
+       `----------1st nibble:   7/15
+</example>
+</div>
+
+<div effect="fade-in">
+<image filename="kindle-read-screen.jpg"/>
+</div>
+</slide>

slides/inside/kindle-warning.xml

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+<slide>
+<title>Kindle Hacking</title>
+<break/>
+<image align="center" attr="" filename="caution.jpg"/>
+<break/>
+<blurb align="center">Playing around with your Kindle can make Amazon angry</blurb>
+</slide>

slides/inside/kindle.xml

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+<slide>
+<title>Kindle</title>
+
+<image filename="kindle.png"/>
+</slide>

slides/inside/phone.xml

@@ -3,6 +3,6 @@
 	<title>PHP Inside</title>
 
 <break lines="2"/>
-	<image filename="freerunner.jpg" align="center" pdf-scale="0.8"/>
+	<image filename="freerunner.png" align="center" pdf-scale="0.8"/>
 
 </slide>

slides/inside/php-on-kindle-cross.xml

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+<slide>
+<title>Kindle Hacking</title>
+<subtitle>Cross-compiling</subtitle>
+
+<list>
+	<bullet>Install the cross compilers from Emdebian:
+		<example>echo "deb http://www.emdebian.org/debian/ testing main" >> /etc/apt/sources.list
+apt-get update
+apt-get install gcc-4.3-arm-linux-gnueabi</example>
+	</bullet>
+	<bullet>Configure "like normal":
+		<example>CC='arm-linux-gnueabi-gcc' \
+'/home/derick/dev/php/php-src/branches/PHP_5_3/configure' \
+'--disable-all' \
+'--prefix=/home/derick/install/kindle/cross/target' \
+'--enable-sockets' \
+'--enable-pcntl' \
+'--with-pcre-regex'</example>
+	</bullet>
+	<bullet>make</bullet>
+	<bullet>Edit the last line, remove everything until %arm-linux-gnueabi-gcc%</bullet>
+	<bullet>Add %-static% after %-fvisibility=hidden%</bullet>
+	<bullet>Replace every %.lo% with %.o%</bullet>
+	<bullet>Run %arm-linux-gnueabi-gcc -export-dynamic -g -O2 -fvisibility=hidden -static    ext/date/php_date.o% .... %-lcrypt  -o sapi/cli/php%</bullet>
+</list>
+</slide>

slides/inside/php-on-kindle.xml

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+<slide>
+<title>Kindle Hacking</title>
+<subtitle>Getting PHP on the Kindle</subtitle>
+
+<image align="center" filename="caution2.jpg"/>
+<break lines="2"/>
+<list>
+	<bullet>Install the cross compilers from Emdebian:
+		<example>echo "deb http://www.emdebian.org/debian/ testing main" >> /etc/apt/sources.list
+apt-get update
+apt-get install gcc-4.3-arm-linux-gnueabi</example>
+	</bullet>
+	<bullet>Cross compile PHP</bullet>
+	<bullet>Copy it over and run:
+		<example>scp sapi/cli/php root@kindle:/tmp
+ssh root@kindle
+/tmp/php -v</example>
+		<example>[root@kindle root]# /tmp/php -v
+PHP 5.3.6-dev (cli) (built: Mar  7 2011 13:42:56) 
+Copyright (c) 1997-2011 The PHP Group
+Zend Engine v2.3.0, Copyright (c) 1998-2011 Zend Technologies</example>
+	</bullet>
+</list>
+</slide>