Question

我正在iPhone上做一个项目。在这里，我必须向Web服务发送POST请求。我使用NSMutableURLRequest和NSURLConnection发送数据，服务器使用PHP。我发现检查if ($_SERVER['REQUEST_METHOD'] != "POST")总是失败，就像返回'GET'一样，即使我在localhost上尝试它。

我的POST请求如下（通过Wireshark嗅探）：

POST tester.php HTTP/1.1
Host: localhost
User-Agent: Mozilla/5.0 (Macintosh; Intel Mac OS X 10.7; rv:10.0.2) Gecko/20100101 Firefox/10.0.2
Accept: text/html,application/xhtml+xml,application/xml;q=0.9,*/*;q=0.8
Accept-Language: en-us,en;q=0.5
Accept-Encoding: gzip, deflate
Connection: keep-alive
Referer: http://localhost/tester.php
Content-Type: application/x-www-form-urlencoded
Content-Length: 422

protocol=4&msgtype=authorize&merchant=86189919&language=da&ordernumber=1274168351&amount=100&currency=DKK&continueurl=http%3A%2F%2Fquickpay.net%2Ffeatures%2Fpayment-window%2Fok.php&cancelurl=http%3A%2F%2Fquickpay.net%2Ffeatures%2Fpayment-window%2Ferror.php&callbackurl=http%3A%2F%2Fquickpay.net%2Ffeatures%2Fpayment-window%2Fcallback.php&autocapture=0&cardtypelock=&splitpayment=1&md5check=d2259d9db077e0f5a41b4bf271c3c549

当然，那里有很多虚拟文本，通常不会出现在iPhone上，但我试图通过html表单进行相同的调用，这很有效。因此，我已经复制了所有信息，看看这是否有所作为，但无济于事。

我比较了两个请求（一个来自iPhone，另一个来自我的php页面），它们看起来完全一样。

我大吃一惊 - 有没有人对如何做有很好的建议？

修改

你的测试不测试post或post vs get，它专门测试POST，你可能有一个案例问题......你试过在php中检查请求本身吗？ - 格雷迪球员

是的，这可能是真的，但该行总是返回GET，因此案例问题已经涵盖，如果这就是你的意思。

另外，当iPhone发送请求时，请从服务器发布print_r（$ _ SERVER）的结果 - Aleks G

数组（HTTP_HOST =＆gt; 10.11.105.254 HTTP_USER_AGENT =＆gt; Mozilla / 5.0（iPhone模拟器; CPU iPhone OS 5_1，如Mac OS X）AppleWebKit / 534.46（KHTML，类似Gecko）Mobile / 9B176 HTTP_ACCEPT =＆gt; text / html，application / xhtml + xml，application / xml; q = 0.9， / ; q = 0.8 HTTP_ACCEPT_LANGUAGE =＆gt; en-us HTTP_ACCEPT_ENCODING =＆gt; gzip，deflate HTTP_CONNECTION =＆gt; keep-alive PATH =＆gt; / usr / bin：/ bin：/ usr / sbin：/ sbin SERVER_SIGNATURE =＆gt; Apache / 2.2.21（Unix）DAV / 2 PHP / 5.3.8 with Suhosin-Patch Server at 10.11.105.254 Port 80 SERVER_SOFTWARE =＆gt; Apache / 2.2.21（Unix）DAV / 2 PHP / 5.3.8与Suhosin-Patch SERVER_NAME =＆gt; 10.11.105.254 SERVER_ADDR =＆gt; 10.11.105.254 SERVER_PORT =＆gt; 80 REMOTE_ADDR =＆gt; 10.11.105.254 DOCUMENT_ROOT =＆gt; / Library / WebServer / Documents SERVER_ADMIN =＆gt; you@example.com SCRIPT_FILENAME =＆gt; /Users/tester.php REMOTE_PORT =＆gt; 51492 GATEWAY_INTERFACE =＆gt; CGI / 1.1 SERVER_PROTOCOL =＆gt; HTTP / 1.1 REQUEST_METHOD =＆gt; GET QUERY_STRING =＆gt; REQUEST_URI =＆gt; /tester.php SCRIPT_NAME =＆gt; /tester.php PHP_SELF =＆gt; /tester.php REQUEST_TIME =＆gt; 1334211212 argv =＆gt; Array argc =＆gt; 0）

您是否尝试检查是否有已知变量，例如是否设置了$ _POST ['known_to_be_set_by_client']？如果请求是POST或GET，那不是PHP，它是Web服务器。 - Tim Post

当我尝试从iPhone请求中回显已知变量时，它当然是空的。这是有道理的。当我从表格中回应同样的东西时，它就在那里。

发布您使用的iOS代码以发出实际请求。 - Cliff Ribaudo

以下是创建请求并发送请求的代码：

//variables
NSString *protocol = @"4";
NSString *msgtype = @"authorize";
NSString *merchant = @"86189919";
NSString *language = @"da";
NSString *orderNo = @"1274168351";
NSString *amount = @"100";
NSString *currency = @"DKK";
NSString *continueURL = @"http://quickpay.net/features/payment-window/ok.php";
NSString *cancelURL = @"http://quickpay.net/features/payment-window/error.php";
NSString *callbackURL = @"http://quickpay.net/features/payment-window/callback.php";
NSString *autoCapture = @"0";
NSString *cardtypeLock =@"";
NSString *splitText = @"1";
NSString *md5check = @"d2259d9db077e0f5a41b4bf271c3c549";

//setting up the request
NSMutableString *post = [[NSMutableString alloc] initWithString:@"protocol="];
[post appendString:protocol];

[post appendString:@"&msgtype="];
[post appendString:msgtype];

[post appendString:@"&merchant="];
[post appendString:merchant];

[post appendString:@"&language="];
[post appendString:language];

[post appendString:@"&ordernumber="];
[post appendString:orderNo];

[post appendString:@"&amount="];
[post appendString:amount];

[post appendString:@"&currency="];
[post appendString:currency];

[post appendString:@"&continueurl="];
[post appendString:continueURL];

[post appendString:@"&cancelurl="];
[post appendString:cancelURL];

[post appendString:@"&callbackurl="];
[post appendString:callbackURL];

[post appendString:@"&autocapture="];
[post appendString:autoCapture];

[post appendString:@"&cardtypelock="];
[post appendString:cardtypeLock];

[post appendString:@"&splitpayment="];
[post appendString:splitText];

[post appendString:@"&md5check="];
[post appendString:md5check];


//escape characters
NSString *tmp = (__bridge NSString *)CFURLCreateStringByAddingPercentEscapes(
                                        NULL, 
                                        (__bridge CFStringRef)post, 
                                        NULL, 
                                        (CFStringRef)@";/:@+$,~", 
                                        kCFStringEncodingUTF8
                                        );


NSData *body = [tmp dataUsingEncoding:NSUTF8StringEncoding];
//setup url
NSString *urlString =@"http://10.10.225.255/tester.php";
NSURL *quickUrl = [NSURL URLWithString:urlString];

//setup URL request
NSMutableURLRequest *request = [[NSMutableURLRequest alloc]init];
//method
[request setHTTPMethod:@"POST"];
//url
[request setURL:url];

//body data to string
NSString *strData = [[NSString alloc]initWithData:body encoding:NSUTF8StringEncoding];

//content length
NSString *postLenght = [NSString stringWithFormat:@"%d", [body length]];

//set body
[request setHTTPBody:body];

//Dummy data to make the request look like the same from the HTML form.
[request setValue:@"localhost" forHTTPHeaderField:@"Host"];
[request setValue:@"Mozilla/5.0 (Macintosh; Intel Mac OS X 10.7; rv:10.0.2) Gecko/20100101 Firefox/10.0.2" forHTTPHeaderField:@"User-Agent"];
[request setValue:@"text/html,application/xhtml+xml,application/xml;q=0.9,*/*;q=0.8" forHTTPHeaderField:@"Accept"];
[request setValue:@"en-us,en;q=0.5" forHTTPHeaderField:@"Accept-Language"];
[request setValue:@"gzip, deflate" forHTTPHeaderField:@"Accept-Encoding"];
[request setValue:@"http://localhost/tester.php" forHTTPHeaderField:@"Referer"];
[request setValue:@"application/x-www-form-urlencoded" forHTTPHeaderField:@"content-type"];
[request setValue:postLenght forHTTPHeaderField:@"content-length"];

//send the request to server
if([[NSURLConnection alloc] initWithRequest:request delegate:self]){
    NSLog(@"sending data to quickpay"); 
}

Answer 1

（这是评论而不是答案）如果

if ($_SERVER['REQUEST_METHOD'] != "POST")

总是失败（正如你在问题中写的那样），这必须意味着：

$_SERVER['REQUEST_METHOD'] == "POST"

因此，您要么提出了错误的问题，要么您没有正确验证输入值。请将var_dump($_SERVER)的输出添加到您的问题中。

Answer 2

我明白了。正如所料，这是我自己的疏忽！当我将url加载到UIWebView中时，在委托中，我使用了loadRequest方法，该方法当然使用GET请求来返回内容。相反，我应该使用loadHTMLString：baseURL：方法来加载返回的数据。此错误意味着应用程序在我的初始POST后发出了另一个GET请求，从而导致错误。很明显，我没有注意到这个额外的时间请求。

在PHP中，iPhone POST请求始终被$ _SERVER ['REQUEST_METHOD']视为GET

2 个答案: