I am using PHP to get JSON from a remote server via file_get_contents command. Here is the piece of code I used:
$opts = array(
'https'=>array(
'method'=>'GET',
'header'=>'Accept-language: en\r\n' .
'Authorization: MAC ["3","ios2.5.0","123","123abc","123=","abc="]\r\n' .
'User-Agent: abc/1.1.1 iOS/10.0.2 iPhone/iPhone7,1\r\n'
)
);
$context = stream_context_create($opts);
$file = file_get_contents('https://www.google.com/v11/file?search=ios&with=users%2Cfiles%2Cquestions', false, $context);
echo $file;
I did a quick debugging:
Using Postman I was able to get the json file with the same header.
I tried a different json from a different url, it works.
I tried a local file, it works.
You have to understand what file_get_contents is. This command is a request to get the file on the server, in this case it is requesting to get https://www.google.com/v11/file/index.html on the server as in one single step. Since your url seems to use header to verify your origin, it might be an ajax request, meaning the server components didn't set up to allow an output from file_get_contents requests, instead they probably accept cURL requests.
So you can use:
curl_exec()
Related
How to make file_get_contents('php://input') to support for http and https, so that any request either from http or https can get processed without any trouble?
On server I have added redirection to redirect user from http to https. Currently our website apps are pointed to HTTP and the next version of app will be connected to HTTPS. I have to give back support for both version of web services.
I am using file_get_contents('php://input') to fetch variables from the requests from APPs, its working for all except JSON requests.
I googled alot and found the following solution but its not working as well.
$opts = array('http' =>
array(
'follow_location' => 1,
)
);
$context = stream_context_create($opts);
$result = file_get_contents('http://example.com/', false, $context);
also tried the same with
$result = file_get_contents('php://input', false, $context);
You're trying to read the request body of an incoming request, which means a POST or PUT request. However, you're also redirecting this request to another URL. You cannot redirect POST/PUT requests, they will always become GET requests upon redirection and the request body will not be forwarded.
client → server: POST /foo { lots of data }
client ← server: Thanks, look over here: 302 Found Location: /bar
client → server: GET /bar (look ma, no data!)
Your issue is not that PHP cannot read from php://input if the request is HTTPS, your issue is that there is no request body to read at all, because you have redirected the request and in the process discarded the body.
The client will have to make a request to the right URL (HTTP or HTTPS) by itself and you need to handle the request on the first try without redirection.
I understand, that you are redirecting selected requests from http to https, most probably by .htaccess rules. Either the http or the https protocol should be used througout, at a certain time.
This would mean that your script should issue a requests thru the file_get_contents() function with the same protocol as it itself has been called. So, there would be no need to "follow location".
The following code would take the protocol from its own request and use it for the secondary request:
<?php
// Find out the protocol we were called
$encrypted = ((isset($_SERVER["HTTPS"])) && (strtoupper($_SERVER["HTTPS"]) == 'ON'));
$proto = ($encrypted) ? "https://" : "http://";
$opts = array(
'http'=>array(
'method'=>"GET",
)
);
$context = stream_context_create($opts);
// Open a file with the headers defined.
// Use the same protocol as we were called
$file = file_get_contents($proto . 'www.example.com/path/test.php', false, $context);
echo "<pre>$file</pre>";
I am working on proxy with PHP. In my php code I am sending proper required headers and expected to get response body and headers. However I am getting response body correctly as I want but not getting headers properly (supposed to get Status 200 but getting 401). When i traced with firefox I found that SAP URL itsself making 2 request internally by using data which I send. so with my first request it is not authenticated so SAP url itslef managining to send same request again and 2nd time it gives both proper response body with headers. Howevber I php code when I get it i get response body from 2nd response and headers from 1st response.
here is code.
$opts = array(
'http'=>array(
'method'=>"POST",
'content' => $xml_request,
'header'=>array("Host:" . $sap_url,
"Content-Type: text/xml; charset=UTF-8",
$authstring,$xml_request)
)
);
$context = stream_context_create($opts);
$result = file_get_contents($sap_url, false, $context);
$http_res_array = get_headers($sap_url);
You should probably use curl functions instead and do BOTH requests yourself. file_get_contents, does the second request for you, but takes away the possibility to fetch the second headers.
Maybe a little old but anyways:
You're using the get_headers()-function to get the headers. It's documentation states that:
Fetches all the headers sent by the server in response to a [new] HTTP request
It doesn't empathize that this function will actually send a new request to the server and return the response-header for that request. Therefor, the headers can be slightly different.
Since you're using file_get_contents() to load the content, you can use the global $http_response_header-variable right after your request, which will contain the response-header from the last executed request.
I would like to get the resulting web page of a specific form submit. This form is using POST so my current goal is to be able to send POST data to an url, and to get the HTML content of the result in a variable.
My problem is that i cannot use cUrl (not enabled), that's why i ask for your knowledge to know if an other solution is possible.
Thanks in advance
See this, using fsockopen:
http://www.jonasjohn.de/snippets/php/post-request.htm
Fsockopen is in php standard library, so all php fron version 4 has it :)
try file_get_contents() and stream
$opts = array( 'http'=>array('method'=>"POST", 'content' => http_build_query(array('status' => $message)),));
$context = stream_context_create($opts);
// Open the file using the HTTP headers set above
$file = file_get_contents('http://www.example.com/', false, $context);
I'm trying to use a web service REST API for which I need to add a parameter for authorization (with the appropriate key, of course) to get a XML result. I'm developing in PHP. How can I add a parameter to the request header in such a situation?
Edit: The way I'm doing the request right now is $xml = simplexml_load_file($query_string);
Are you using curl? (recommended)
I assume that you are using curl to do these requests towards the REST API, if you aren't; use it.
When using curl you can add a custom header by calling curl_setopt with the appropriate parameters, such as in below.
curl_setopt (
$curl_handle, CURLOPT_HTTPHEADER,
array ('Authentication-Key: foobar')
); // make curl send a HTTP header named 'Authentication-key'
// with the value 'foobar'
Documentation:
PHP: cURL - Manual
PHP: curl_setopt - Manual
Are you using file_get_contents or similar?
This method is not recommended, though it is functional.
Note: allow_url_fopen needs to be enabled for file_get_contents to be able to access resources over HTTP.
If you'd like to add a custom header to such request you'll need to create yourself a valid stream context, as in the below snippet:
$context_options = array(
'http' =>array (
'method' => 'GET',
'header' => 'Authentication-Key'
)
);
$context = stream_context_create ($context_options);
$response = file_get_contents (
'http://www.stackoverflow.com', false, $context_options
);
Documentation:
PHP: file_get_contents - Manual
PHP: stream_context_create - Manual
PHP: Runtime Configuration, allow_url_fopen
I'm using neither of the above solutions, what should I do?
[Post OP EDIT]
My recommendation is to fetch the data using curl and then pass it off to the parser in question when all the data is received. Separate data fetching from the processing of the returned data.
[/Post OP EDIT]
When you use $xml = simplexml_load_file($query_string);, the PHP interpreter invokes it's wrapper over fopen to open the contents of a file located at $query_string. If $query_string is a remote file, the PHP interpreter opens a stream to that remote URL and retrieves the contents of the file there (if the HTTP response code 200 OK). It uses the default stream context to do that.
There is a way to alter the headers sent by altering that stream context, however, in most cases, this is a bad idea. You're relying on PHP to always open all files, local or remote, using a function that was meant to take a local file name only. Not only is it a security problem but it also could be the source of a bug that is very hard to track down.
Instead, consider splitting the loading of the remote content using cURL (checking the returned HTTP status code and other sanity checks) and then parsing that content into a SimpleXMLElement object to use. When you use cURL, you can set any headers you want to send with the request by invoking something similar to curl_setopt($ch, CURLOPT_HTTPHEADER, array('HeaderName' => 'value');
Hope this helps.
I am using PHP with the Amazon Payments web service. I'm having problems with some of my requests. Amazon is returning an error as it should, however the way it goes about it is giving me problems.
Amazon returns XML data with a message about the error, but it also throws an HTTP 400 (or even 404 sometimes). This makes file_get_contents() throw an error right away and I have no way to get the content. I've tried using cURL also, but never got it to give me back a response.
I really need a way to get the XML returned regardless of HTTP status code. It has an important "message" element that gives me clues as to why my billing requests are failing.
Does anyone have a cURL example or otherwise that will allow me to do this? All my requests currently use file_get_contents() but I am not opposed to changing them. Everyone else seems to think cURL is the "right" way.
You have to define custom stream context (3rd argument of function file_get_contents) with ignore_errors option on.
As a follow-up to DoubleThink's post, here is a working example:
$url = 'http://whatever.com';
//Set stream options
$opts = array(
'http' => array('ignore_errors' => true)
);
//Create the stream context
$context = stream_context_create($opts);
//Open the file using the defined context
$file = file_get_contents($url, false, $context);