I have been searching for a way to proxy a mjpeg stream from the AXIS M1114 Network Camera.
using the following url setup
http://host:port/axis-cgi/mjpg/video.cgi?resolution=320x240&camera=1
i try to capture the output and make them available to users with a php script running an apache server on ubuntu.
having browsed the web looking for an answer to no avail i come to you.
my ultimate goal is to have users able to link to the proxy like this:
<img src='proxy.php'>
and have the details of all the things in proxy.php.
I have tried using the way of cURL (advised in similar thread here) but i can't get it to work, probably due to lack of knowledge on the inner workings.
currently my very simple proxy.php looks like this
<?php
$camurl = "http://ip:port";
$campath = "axis-cgi/mjpg/video.cgi";
$userpass = "user:pw";
$ch = curl_init();
curl_setopt ($ch, CURLOPT_FOLLOWLOCATION, true);
curl_setopt($ch, CURLOPT_URL, $camurl + $campath);
curl_setopt($ch, CURLOPT_POSTFIELDS, 'resolution=320x240&camera=1');
curl_setopt($ch, CURLOPT_HTTPAUTH, CURLAUTH_ANY);
curl_setopt($ch, CURLOPT_USERPWD, $userpass);
$result = curl_exec($ch);
header('Content-type: image/jpeg');
echo $result;
curl_close($ch);
?>
My understanding is that this would produce an acceptable output for my plan. But alas.
My question would be if there is a blatant error i do not see. Any simpler option/way of getting the result i aim for is welcome too.
Please point me in the right direction. I happily provide any relevant information i might have missed to provide. Thank you in advance.
solved edit:
After commenting out:
curl_setopt ($ch, CURLOPT_FOLLOWLOCATION, true);
changing
curl_setopt($ch, CURLOPT_URL, $camurl + $campath);
to
curl_setopt($ch, CURLOPT_URL, $camurl . $campath); (mixing up some languages)
and most importantly removing a space in the .php file so that the header is actually the header it sort of does what i wanted.
Adding a
curl_setopt($ch,CURLOPT_RETURNTRANSFER,true);
seems to be needed to get the image displayed as image and not as raw data.
Related
This is my first question on here and I wouldn't ask if I haven't tried nearly everything in my might already. My problem is as follows:
I got tasked to maintain an old webapp in our company and part of it was to change an old date in a html file to the current year. I did that and when I access the file with the required parameters directly it works. Now the app itself doesn't access this file directly but loads it in through something they called "proxy.php" - it defines allowed hosts and some other stuff but the thing it mostly does is get data via cURL. If I access the file that I changed through the "proxy.php" it returns a file that shouldn't exist anywhere on the server (with old content in it).
I replicated proxy.php's function down below with the same result (an old file is served):
<?php
//phpinfo();
//Proxy.php test because weird things are happening...
$url = $_GET["url"]; //The url that it gets is escaped already.
$ch = curl_init();
curl_setopt($ch, CURLOPT_HTTPGET,1);
curl_setopt($ch, CURLOPT_URL,$url);
curl_setopt($ch, CURLOPT_SSL_VERIFYHOST, 2);
curl_setopt($ch, CURLOPT_SSL_VERIFYPEER, FALSE);
curl_setopt($ch, CURLOPT_RETURNTRANSFER,TRUE);
curl_setopt($ch, CURLOPT_CONNECTTIMEOUT, 5);
curl_setopt($ch, CURLOPT_TIMEOUT, 15);
$xml = curl_exec ($ch);
echo $xml;
?>
I also got told by a colleague that they always only altered they date in the html file and it worked until now. I hope I provided enough information about my problem. Thank you in advance.
Just wanted to give a quick update as I have resolved the issue thankfully.
Deep in the configuration was an old proxy server that seemed to be serving cached files.
I changed the "proxy.php" to use a new proxy server:
$proxy = "your.proxy.server:port";
curl_setopt($ch, CURLOPT_PROXY, $proxy);
Thanks everyone for your advice :)
I'm trying to use PHP cURL to send a GET request to Apache Solr to receive search results, and I'm running into some trouble. This is more to do with PHP cURL I think than Solr...but i digress...here's what I have so far.
$ch = curl_init();
curl_setopt($ch, CURLOPT_URL, "http://example.com/solr/example/select?".$this->query);
curl_setopt($ch, CURLOPT_PORT, 8983);
curl_setopt($ch, CURLOPT_SSL_VERIFYPEER, FALSE);
curl_setopt($ch, CURLOPT_CUSTOMREQUEST, 'GET');
curl_setopt($ch, CURLOPT_TIMEOUT, '4');
curl_setopt($ch, CURLOPT_RETURNTRANSFER, TRUE);
$data = json_decode(curl_exec($ch), TRUE);
curl_close($ch);
Currently, the request times out at 4 seconds...so I'm wondering if maybe the port# isn't being set properly...I also tried to include it in the URL itself with no luck. The weird part is that I can echo the constructed URL, add the port# manually, copy/paste into the browser and it works! But, for some reason it doesn't with the code above.
Any help would be greatly appreciated! Thanks in advance!
The above code actually works as intended...my issue was local firewall rules blocking remote connection to certain port #'s (as opposed to remote server firewall rules as skrilled suspected)
I'm currently using this plugin http://wordpress.org/extend/plugins/repress/ which basically makes my website a proxy so that users can access censored websites like this
www.mywebsite.com/proxy/www.cnn.com
The plugin works well enough but when it comes to absolute links the plugin doesn't parse it properly and the link is still blocked. That plugin development has stopped. So I need to write my own script. I've been searching everywhere and reading up on the tutorials I can find but none specifically helps me in regards to this.
I know how to use php curl to fetch a website and echo it on a blank page. What I don't know is how to set a proxy script to work like the above example where users can type
www.mywebsite.com
followed by
/proxy.php
then their target website
/www.cnn.com
Currently I have this set up:
<?php
$url = 'http://www.cnn.com';
$proxy_port = 80;
$proxy = '92.105.140.115';
$timeout = 0;
$referer = 'http://www.mydomain.com'
$ch = curl_init();
curl_setopt($ch, CURLOPT_URL, $url);
curl_setopt($ch, CURLOPT_HEADER, 1);
curl_setopt($ch, CURLOPT_RETURNTRANSFER, 0);
curl_setopt($ch, CURLOPT_PROXYPORT, $proxy_port);
curl_setopt($ch, CURLOPT_PROXY, $proxy);
curl_setopt($ch, CURLOPT_PROXYTYPE, 'HTTP');
curl_setopt($ch, CURLOPT_HTTPPROXYTUNNEL, 0);
curl_setopt($ch, CURLOPT_CONNECTTIMEOUT, $timeout);*/
curl_setopt($ch, CURLOPT_FOLLOWLOCATION, 1);
curl_setopt($ch, CURLOPT_REFERER, $referer);
$data = curl_exec($ch);
curl_close($ch);
echo $data;
?>
This pulls the home page but no css or images are retrieved. Likewise all relative links are broken. I have no idea how to apply the proxy_port and proxy variables. I tried
92.105.140.115:80/www.cnn.com
but that doesn't work. I don't quite fully understand this code either since I found it on an example site.
Any answer or links for tutorials is greatly welcome.
Thank You!
To have a completely functioning proxy isn't that simple. There are many such projects already available. Give any a shot:
http://www.surrogafier.info/
https://github.com/Alexxz/Simple-php-proxy-script
http://www.glype.com/
Have fun!
you can not just echo in a page the result of a curl's fetch website because the browsers will interpret the Uris bad, you need that when the user click on a link he goes to your proxy site not to the original site, so you can't just print with echo, you need to edit manual every link in that fetched page before print it to the users, i have a full functional proxy made by php en p.listascuba.com you cant try it.
contact me for more info
Can you help me get this content spinning API working? It was wrote to work with C# but is there a way I can get it to work using PHP? I've been trying to post to the URL stated on that page using cURL, but all I'm getting back is a blank page. Here's the code I'm using:
$url = "http://api.spinnerchief.com/apikey=YourAPIKey&username=YourUsername&password=YourPassword";
// Some content to POST
$post_fields = "SpinnerChief is totally free. Not a 'lite' or 'trial' version, but a 100% full version and totally free. SpinnerChief may be free, but it is also one of the most powerful content creation software tools available. It's huge user-defined thesaurus means that its sysnonyms are words that YOU would normally use in real life, not some stuffy dictionary definition. And there's more...SpinnerChief can only get better, because we listen to our users, We take onboard your ideas and suggestions, and we update SpinnerChief so that it becomes the software YOU want!";
$ch = curl_init();
curl_setopt($ch, CURLOPT_URL, $url);
curl_setopt($ch, CURLOPT_PORT, 9001);
curl_setopt($ch, CURLOPT_POST, 1);
curl_setopt($ch, CURLOPT_POSTFIELDS, $post_fields);
curl_setopt($ch, CURLOPT_RETURNTRANSFER, 1);
$result = curl_exec($ch);
curl_close($ch);
echo $result;
Can anyone see something wrong I'm doing? Thanks a lot for the help.
The value for CURLOPT_POST should be 1, and the posted data should be set with CURLOPT_POSTFIELDS.
I am still fairly new at playing with PHP. I wanted to poke at a small project. I have the ability to access an xml feed from our calendar system at work. The feed requires authentication with a username and password. I am trying to automate pulling this feed. My hope is to one day use it to automate the scheduling of another system but for now I'm just trying to get this side working.
I have read through some of the cURL documentation on php.net. I have also searched through stackoverflow for a few examples. They were helpful in getting me started but not much further. Below is what I have so far. But all I get back is:
UNAUTHORIZED The request requires
authorization
So I'm racking my head to figure out what might be the issue. Part of my problem I'm sure is my ignorance with the actual process behind what is going on between the client and server. When I interact with it normally I just go to the feed URL, the browser prompts me for a username and password, and then after putting that in it gives me an xml page.
I've checked for most of the formatting errors and syntax errors I knew to look for. That may still be it but at this point I think it's more my lack of understanding how it all fits together. Thanks for any help.
Similar issues:
Parsing XML data with Namespaces in PHP
CURL HTTP Authentication at server side
<?php
$ch = curl_init();
curl_setopt($ch, CURLOPT_URL, "http://somesight.someplace.edu/r25ws/servlet/wrd/run/events.xml");
curl_setopt($ch, CURLOPT_RETURNTRANSFER, 1);
curl_setopt($ch, CURLOPT_USERPWD, "username:password");
curl_setopt($ch, CURLOPT_HTTPAUTH, CURLAUTH_ANY);
curl_setopt($ch, CURLOPT_SSL_VERIFYPEER, false);
curl_setopt($ch, CURLOPT_FOLLOWLOCATION, true);
curl_setopt($ch, CURLOPT_HTTPHEADER, Array("Content-Type: text/xml"));
curl_setopt($ch, CURLOPT_UNRESTRICTED_AUTH, 1);
$output = curl_exec($ch);
curl_close($ch);
echo $output;
?>
I figured it out on my own after looking at a similar tutorial for Twitter. I tried a different approach to formatting the options and it worked fine. I also cut down on the number of options I was sending because it seemed like overkill. Code that works below.
<?php
$username = 'myusername';
$password = 'mypassword';
$datecall = curl_init("http://somesite.someplace.edu/r25ws/servlet/wrd/run/events.xml");
curl_setopt($datecall, CURLOPT_USERPWD, $username.":".$password);
curl_setopt($datecall, CURLOPT_RETURNTRANSFER, 1);
$result = curl_exec($datecall);
echo $result;
?>