ansaurus

Question

How to access url that requires http authenticate in c/c++/command line?

Answer 1

+1 A:

It can be educational to use Wireshark, or some other LAN sniffer, to watch what a browser and server do when you access a URL with embedded credentials such as your http://admin:[email protected]/videostream.cgi

RedGrittyBrick 2010-10-28 13:15:33

Is it possible to save the video stream into a file by command line?

ollydbg 2010-10-28 13:30:43

As Wyatt Anderson says, there are tools like curl that are useful for this sort of thing. I mostly use `wget` which is similar to `curl`. For example `wget http://admin:[email protected]/videostream.cgi` or `wget --http-user admin --http-password 123456 http://192.168.1.178/videostream.cgi`.

RedGrittyBrick 2010-10-28 15:25:23

Answer 2

A:

For basic authentication, you specify the username and password as username:password, then Base64-encode it and use it as an argument to the Authentication header:

Authorization: Basic YXNkZjoxMjM0

YXNkZjoxMjM0 decodes to asdf:1234; I used curl -u adsf:1234 (specifying the username "asdf" and password "1234") to produce this result.

Wyatt Anderson 2010-10-28 13:18:01

Is it possible to save the video stream into a file by command line?

ollydbg 2010-10-28 13:30:50

You might try just using `curl`: `curl -O -u USERNAME:PASSWORD url` would save the output to a file. Check out the manpage for `curl` for the complete list of options.

Wyatt Anderson 2010-10-28 13:37:37

No curl,only telnet is allowed.BTW,I tried to use curl to deal with stream before,but seems not working,it can only deal with simple resources but not continuous streams.

ollydbg 2010-10-28 13:41:22

Hmm. Tricky. So you can *only* use `telnet` to do this? Are you on Linux or Windows? You could try redirecting the output of `telnet` to a file. It looks like [this guy](http://www.commandlinefu.com/commands/view/4412/use-curl-to-save-an-mp3-stream) has some advice for saving MP3 streams with `curl`... but if you're really only restricted to using `telnet` you might have a harder time.

Wyatt Anderson 2010-10-28 15:27:37

From a firewall point of view, using curl (or wget) is indistinguishable from using telnet to port 80. I would use Wireshark to see how the service at your URL is streaming data. Perhaps it serves up HTML with some embedded links to other object URLs that do the streaming?

RedGrittyBrick 2010-10-28 15:32:46

ansaurus

tags:

views:

answers:

How to access url that requires http authenticate in c/c++/command line?

related questions