2010 Jan 8, 2:08Flickr dev talks image metadata the various forms which to prefer and how to guess at their character encodings.
unicode charset flickr photo image exif programming reference xmp technical 2010 Jan 5, 7:42
I've made a WPAD server Fiddler extension and in a fit of creativity I've named it: WPAD Server Fiddler
Extension.
Of course you know about Fiddler, Eric's awesome HTTP debugger tool, the HTTP proxy that lets you inspect, visualize and modify the
HTTP traffic that flows through it. And on the subject you've probably definitely heard of WPAD, the Web Proxy Auto Discovery protocol
that allows web browsers like IE to use DHCP or DNS to automatically discover HTTP proxies on their network. While working on a particularly nasty WPAD bug towards the end of IE8 I really wished I
had a way to see the WPAD requests and responses and modify PAC responses in Fiddler. Well the wishes of me of the past are now fulfilled by present day me as this Fiddler extension will respond to
WPAD DHCP requests telling those clients (by default) that Fiddler is their proxy.
When I started working on this project I didn't really understand how DHCP worked especially with respect to WPAD. I won't bore you with my misconceptions: it works by having your one DHCP server
on your network respond to regular DHCP requests as well as WPAD DHCP requests. And Windows I've found runs a DHCP client service (you can start/stop it via Start|Run|'services.msc', scroll to DHCP
Client or via the command line with "net start/stop 'DHCP Client'") that caches DHCP server responses making it just slightly more difficult to test and debug my extension. If a Windows app uses
the DHCP client APIs to ask for the WPAD option, this service will send out a DHCP request and take the first DHCP server response it gets. That means that if you're on a network with a DHCP
server, my extension will be racing to respond to the client. If the DHCP server wins then the client ignores the WPAD response from my extension.
Various documents and tools I found useful while working on this:
proxy fiddler http technical debug wpad pac tool dhcp 2009 Dec 28, 9:27"This class represents a sensor event and holds informations such as the sensor type (eg: accelerometer, orientation, etc...), the time-stamp, accuracy and of course the sensor's data."
sensor android technical programming development reference accelerometer java 2009 Dec 28, 8:04"Just as I was finishing my first look at the accelerometer and magnetic field sensors a couple of threads cropped up on the Android Developer's group..."
android cellphone programming development java sensor technical 3d orientation 2009 Dec 26, 7:11Wow, that was easy to setup. After installing the driver Eclipse just asks me if I want to debug on my phone or my virtual device.
technical reference android programming development cellphone g1 documentation google 2009 Dec 25, 6:15"The GL10 interface contains the Java(TM) programming language bindings for OpenGL(R) ES 1.0 core functionality."
programming java opengl android cellphone technical reference 3d 2009 Dec 23, 9:58Results of a set of black box tests on various characters in various parts of URLs in various popular browsers.
via:mnot url uri iri idn dns browser web technical 2009 Dec 22, 9:39"The Wii Remote API also allows the Web page to detect all Wii Remotes that are connected to the Wii; up to four at a time. This makes it possible to make Web pages interact with up to four users at
the same time..."
wii wiimote remote web javascript opera programming development reference technical 2009 Dec 18, 9:48"Several applications extending the Hypertext Transfer Protocol (HTTP) require a feature to do partial resource modification. The existing HTTP PUT method only allows a complete replacement of a
document. This proposal adds a new HTTP method, PATCH, to modify an existing HTTP resource."
http patch ietf reference via:warren technical 2009 Dec 18, 2:27"...this week we launched an improvement to Google Maps India that describes routes in terms of easy-to-follow landmarks and businesses that are visible along the way. We gathered feedback from users
around the world to spark this improvement to our technology, and we thought we'd give you a glimpse at our thinking behind this launch."
google map geography geo india 2009 Dec 15, 2:01"Jeff Atwood (Coding Horror fame) was in for a horror when he realized that his server crashed and his data was gone and due to some reason, the backup mechanism was not working. ... So what should
Jeff do now? Since Coding horror is a high traffic blog, I think there is a way to get back at least some of the images." Reconstruct the HTML from Google's cache, change the HTTP server to tell the
client it has the correct cached image for all the images, add script to the HTML to grab the images and send them back. Awesome idea. Of course now I want to setup Fiddler to swap in random
images...
via:ericlaw jeff-atwood backup web http cache image javascript technical 2009 Dec 14, 9:36Find all references to a function, type, etc.
ctags faq vim cscope code development technical programming 2009 Dec 14, 2:25Recommendations on writing HTML for email clients... Ugh.
via:mattb html email css web reference technical 2009 Dec 12, 1:08WinSock uses a WPAD like protocol for... something?
technical reference proxy wpad winsock windows 2009 Dec 12, 2:42"The Dynamic Host Configuration Protocol (DHCP) [1] provides a framework for passing configuration information to hosts on a TCP/IP network. Configuration parameters and other control information are
carried in tagged data items that are stored in the 'options' field of the DHCP message. The data items themselves are also called "options.""
technical reference rfc dhcp ietf ipv4 ip 2009 Dec 9, 1:32"We're not always aware of it here in the USA, but there are many ISPs out there in the world who do things quite differently than what we're used to. Some of these ISPs ideas are even really good.
Ars surveys the global ISP landscape and paints a picture of what a dream ISP might look like."
technical internet isp web article 2009 Dec 4, 10:29The Chrome blog documents what you do to your anchor tag to get it to open in a new process.
html google chrome web browser technical 2009 Dec 4, 10:24Flickr dev. blog on the accept-language HTTP header: "It’s true that the Accept-Language header has a troubled history. Because of this, many developers regard it the way medieval villagers might
have regarded a woman with a warty nose and a pet cat – it should be shunned, avoided and possibly burned at the stake." And this great anecdote: "In two and a half years of running as an
international site, we’ve only ever had one case where it didn’t work. Helio, a cellphone company, had a browser was custom-built for them in Korea, and had its “Accept-Language” header hard-coded to
always request Korean, something which led to much confusion for the Flickr users amongst their American customers."
flickr internationalization language accept-language http http-header development technical web
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