2012-08-17 99 views
2

我正尝试在远程服务器上传图像。如果我从谷歌的手机上下载图片并上传,例如http://www.mangauk.com/gallery/albums/album-11/lg/scooby.jpeg,它就可以上传。但是,如果我尝试上载使用相机拍摄的图像,则不起作用。服务器挂起。从iOS设备上传图像到服务器

(IBAction)uploadImage { 
    /* 
    turning the image into a NSData object 
    getting the image back out of the UIImageView 
    setting the quality to 90 
    */ 
    NSData *imageData = UIImageJPEGRepresentation(image.image, 90); 
    // setting up the URL to post to 
    NSString *urlString = @"http://iphone.zcentric.com/test-upload.php"; 

    // setting up the request object now 
    NSMutableURLRequest *request = [[[NSMutableURLRequest alloc] init] autorelease]; 
    [request setURL:[NSURL URLWithString:urlString]]; 
    [request setHTTPMethod:@"POST"]; 

    /* 
    add some header info now 
    we always need a boundary when we post a file 
    also we need to set the content type 

    You might want to generate a random boundary.. this is just the same 
    as my output from wireshark on a valid html post 
    */ 
    NSString *boundary = [NSString stringWithString:@"---------------------------14737809831466499882746641449"]; 
    NSString *contentType = [NSString stringWithFormat:@"multipart/form-data; boundary=%@",boundary]; 
    [request addValue:contentType forHTTPHeaderField: @"Content-Type"]; 

    /* 
    now lets create the body of the post 
    */ 
    NSMutableData *body = [NSMutableData data]; 
    [body appendData:[[NSString stringWithFormat:@"rn--%@rn",boundary] dataUsingEncoding:NSUTF8StringEncoding]];  
    [body appendData:[[NSString stringWithString:@"Content-Disposition: form-data; name="userfile"; filename="ipodfile.jpg"rn"] dataUsingEncoding:NSUTF8StringEncoding]]; 
    [body appendData:[[NSString stringWithString:@"Content-Type: application/octet-streamrnrn"] dataUsingEncoding:NSUTF8StringEncoding]]; 
    [body appendData:[NSData dataWithData:imageData]]; 
    [body appendData:[[NSString stringWithFormat:@"rn--%@--rn",boundary] dataUsingEncoding:NSUTF8StringEncoding]]; 
    // setting the body of the post to the reqeust 
    [request setHTTPBody:body]; 

    // now lets make the connection to the web 
    NSData *returnData = [NSURLConnection sendSynchronousRequest:request returningResponse:nil error:nil]; 
    NSString *returnString = [[NSString alloc] initWithData:returnData encoding:NSUTF8StringEncoding]; 

    NSLog(returnString); 
} 

和PHP脚本

$uploaddir = './uploads/'; 
$file = basename($_FILES['userfile']['name']); 
$uploadfile = $uploaddir . $file; 

if (move_uploaded_file($_FILES['userfile']['tmp_name'], $uploadfile)) { 
     echo "http://iphone.zcentric.com/uploads/{$file}"; 
} 
+3

如果有人能够帮助您而无法查看您的代码,该如何处理? – vikingosegundo 2012-08-17 10:34:28

+0

你可以把代码放在这里吗? – 2012-08-17 10:34:33

+0

使用你的感官,@vikingosegundo,使用你的额外感官...)))没有人阅读常见问题前张贴问题... – 2012-08-17 10:38:33

回答

3

的问题必须在你的PHP脚本,因为该文件必须得到发送给它。

你应该在你的php中定义文件的名字,而不是相信原始文件名。

否则有人可能会上传一个恶意的.php文件,并且您的脚本会很高兴地上传它并将其命名为.php,并且它们可以接管您的服务器。

你应该做这样的事情:

$uploaddir = './uploads/'; 
$file = $uploaddir . 'filename_chosen_by_you.jpg'; 

这很可能也解决了JPEG/JPG问题becasue你正在做的命名。

另一件事 - 你也在做一个同步请求 - 这意味着你的应用程序只会在请求时等待并冻结(如果它是一个大文件,这可能是几秒钟),看看做一个异步请求。这意味着它会在后台上传图片,然后在完成后调用一个函数,以便您可以告诉用户所有上传的确定。