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发送到ImageShack的HTTP邮件

imageshack cocoa-touch iphone

Brandon Schlenker · 技术社区 · 17 年前

我目前正在通过HTTP Post将图像上载到我的服务器。使用下面的代码,一切正常。

NSString *UDID = md5([UIDevice currentDevice].uniqueIdentifier);
NSString *filename = [NSString stringWithFormat:@"%@-%@", UDID, [NSDate date]];
NSString *urlString = @"http://taptation.com/stationary_data/index.php";
request= [[[NSMutableURLRequest alloc] init] autorelease];
[request setURL:[NSURL URLWithString:urlString]];
[request setHTTPMethod:@"POST"];
NSString *boundary = @"---------------------------14737809831466499882746641449";
NSString *contentType = [NSString stringWithFormat:@"multipart/form-data; boundary=%@",boundary];
[request addValue:contentType forHTTPHeaderField: @"Content-Type"];
NSMutableData *postbody = [NSMutableData data];
[postbody appendData:[[NSString stringWithFormat:@"\r\n--%@\r\n",boundary] dataUsingEncoding:NSUTF8StringEncoding]];
[postbody appendData:[[NSString stringWithFormat:@"Content-Disposition: form-data; name=\"userfile\"; filename=\"%@.jpg\"\r\n", filename] dataUsingEncoding:NSUTF8StringEncoding]];
[postbody appendData:[[NSString stringWithString:@"Content-Type: application/octet-stream\r\n\r\n"] dataUsingEncoding:NSUTF8StringEncoding]];
[postbody appendData:[NSData dataWithData:imageData]];
[postbody appendData:[[NSString stringWithFormat:@"\r\n--%@--\r\n",boundary] dataUsingEncoding:NSUTF8StringEncoding]];
[request setHTTPBody:postbody];

NSData *returnData = [NSURLConnection sendSynchronousRequest:request returningResponse:nil error:nil];
returnString = [[NSString alloc] initWithData:returnData encoding:NSUTF8StringEncoding];
NSLog(returnString);

但是,当我尝试将其转换为使用Image Shacks XML API时,它不会返回任何内容。来自Imageshack的方向如下。

通过post将以下变量发送到imageshack。U/DIXX.PHP

文件上传;(图片) xml=“yes”;(指定XML的返回) cookie;(注册码,可选)

有人知道我该从这里去哪里吗?

2 回复 | 直到 17 年前

pokeb 17 年前

你可能想考虑使用 ASIHTTPRequest ,因为它可以为您构建一个简单的表单数据发布主体,并且可以从磁盘流式传输请求主体,所以在上载大型图像时可以节省内存。

找到一个快速的谷歌 this ,这似乎表明您应该发布到/upload_api.php,而不是/index.php。

像这样的事情可能是一个好的开始:

ASIFormDataRequest *request = [[[ASIFormDataRequest alloc] initWithUrl:[NSURL URLWithString:@"http://www.imageshack.us/upload_api.php"]] autorelease];
[request setFile:@"/path/to/file" forKey:@"fileupload"];
[request setPostValue:@"yes" forKey:@"xml"];
[request setPostValue:@"blahblah" forKey:@"cookie"];
//It looks as though you probably need these too
[request setPostValue:@"me@somewhere.com" forKey:@"email"];
[request setPostValue:@"blah" forKey:@"key"];
[request start];
if ([request error]) {
    NSLog(@"%@",[request error]);
} else {
Â  Â  NSLog([request responseString]); // The xml that got sent back
}

警告:未测试!

因为您使用了同步请求,所以我使用了同步请求,但您几乎可以肯定应该使用异步请求(带有asihttpRequest的队列)。

max_ 15 年前

花了我一段时间,但你需要使用asihttpRequest!

- (void)uploadToImageShack {
NSAutoreleasePool *paul = [[NSAutoreleasePool alloc] init];
UIImage *tempImage = self.selectedimage;
ASIFormDataRequest *request = [[[ASIFormDataRequest alloc] initWithURL:[NSURL URLWithString:@"http://www.imageshack.us/upload_api.php"]] autorelease];
NSData *imageData = UIImagePNGRepresentation(tempImage);
[request setFile:imageData withFileName:@"image" andContentType:@"image/png" forKey:@"fileupload"];
[request setPostValue:@"yes" forKey:@"xml"];
[request setPostValue:@"3ZQ7C09K708fce677d9cadee04811cfcbdf63361" forKey:@"key"];
[request setUseCookiePersistence:NO];
[request startSynchronous];
NSError *error = [request error];
if (error) {
    UIAlertView *alert = [[UIAlertView alloc] initWithTitle:@"Error" message:[error localizedDescription] delegate:nil cancelButtonTitle:@"Dismiss" otherButtonTitles:nil];
    [alert show];
    [alert release];
}
else if (!error) {
    if ([request responseString]) {
        parser = [[NSXMLParser alloc] initWithData:[[NSData alloc] initWithData:[request responseData]]];
        [parser setDelegate:self];
        [parser parse];
    }
}   
[paul drain];
}