来自 FBVideoUpload 请求的“签名不正确”答案

【问题标题】："Incorrect signature" from FBVideoUpload request来自 FBVideoUpload 请求的“签名不正确”
【发布时间】：2011-08-12 19:44:51
【问题描述】：

通过 FBConnect（版本为 https://github.com/zoul/facebook-ios-sdk/）上传视频时出现“签名错误”错误。见下文。

任何想法如何调试这个？

是否有通过 FBConnect 上传视频的工作示例？

任何建议将不胜感激。

代码：

NSArray *permissions = [NSArray arrayWithObjects:@"publish_stream", @"offline_access",nil];
_facebook.forceOldStyleAuth = TRUE;
[_facebook authorize:APP_ID permissions:permissions delegate:_facebookDelegate];

...

NSString *path = [[NSBundle mainBundle] pathForResource:@"dreamall" ofType:@"m4v" inDirectory:@"/"];
NSURL *url = [NSURL fileURLWithPath:path];
FBVideoUpload *upload = [[FBVideoUpload alloc] init];
upload.accessToken = _facebook.accessToken;
upload.apiKey = API_KEY;
upload.appSecret = SECRET;
NSMutableDictionary *params = [NSMutableDictionary dictionaryWithObjectsAndKeys:
                               @"test", @"title",
                               @"upload testing", @"description",
                               nil];
[upload startUploadWithURL:url params:params delegate:self];

回应：

<error_response xmlns="http://api.facebook.com/1.0/" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://api.facebook.com/1.0/ http://api.facebook.com/1.0/facebook.xsd">
  <error_code>104</error_code>
  <error_msg>Incorrect signature</error_msg>
  <request_args list="true">
    <arg>
      <key>description</key>
      <value>upload testing</value>
    </arg>
    <arg>
      <key>v</key>
      <value>1.0</value>
    </arg>
    <arg>
      <key>api_key</key>
      <value>...</value>
    </arg>
    <arg>
      <key>method</key>
      <value>facebook.video.upload</value>
    </arg>
    <arg>
      <key>session_key</key>
      <value>41ab9717c61b70a34a8e48d4.3-100000419172530</value>
    </arg>
    <arg>
      <key>sig</key>
      <value>bca612d495400136f1847f2bc6907525</value>
    </arg>
    <arg>
      <key>title</key>
      <value>test</value>
    </arg>
  </request_args>
</error_response>
í£|<€_Y†gÊˇ¯ZÓzì&Àle4:∫Ù6V-Fn#vÂΩ'‚¥gƒ˙Y†ˇOáeyœn,≠ˇŒX≤Ÿ˘¡¬6G˛éÊ]÷FùC¯7˘JêÁW˙∫nÂﬁ${(;∑.L‰¯õßÏAüˆ—6Û{ˆhu|ûﬁ± •ìn£hﬁÇç£÷¥GÃ…˛Ü·B:up

【问题讨论】：

标签： iphone objective-c ios facebook fbconnect

【解决方案1】：

对我来说 FBVideoUpload 工作正常，所以我把我的代码放在这里：

m_Facebook = [[Facebook alloc] init];
m_FacebookUploader = [[FBVideoUpload alloc]init]; 
NSArray *permissions =  [NSArray arrayWithObjects:@"publish_stream", @"offline_access",nil];
m_Facebook.forceOldStyleAuth = YES;
[m_Facebook authorize:APP_ID permissions:permissions delegate:self];

在 Facebook 委托方法中

- (void)fbDidLogin
{
    NSURL *movieURL = [NSURL fileURLWithPath:m_MoviePath];

    NSDictionary *params = [NSDictionary dictionaryWithObjectsAndKeys:
                            @"Look at my funny video !", @"title",
                            [@"A message" objectForKey:@"message"], @"description",
                            nil];

    [m_FacebookUploader setApiKey:APP_ID];
    [m_FacebookUploader setAccessToken:m_Facebook.accessToken];
    [m_FacebookUploader setAppSecret:APP_SECRET];
    [m_FacebookUploader startUploadWithURL:movieURL params:params delegate:self];

}

【讨论】：

非常感谢您提供的示例。实际上，问题在于我的 Facebook 应用程序未设置为“桌面”模式。我应该更新这篇文章。

【解决方案2】：

我的 Facebook 应用程序未设置为“桌面”模式。这就是身份验证不起作用的原因。见：

http://code.google.com/p/facebook-java-api/wiki/DesktopMode

不幸的是，他们从 Facebook 的开发者网站中删除了此选项，因此当前版本的 FBVideoUpload 无法与新应用一起使用。

我已修改 FBVideoUpload 以使用新的 Graph API 而不是旧的 REST API。见下文。我会联系 FBVideoUpload 的开发者。

//static NSString *const kAPIURL = @"http://api-video.facebook.com/restserver.php";
static NSString *const kAPIURL = @"https://graph-video.facebook.com/me/videos";

...

/*
NSMutableDictionary *params = [NSMutableDictionary dictionaryWithDictionary:userParams];
[params setObject:@"1.0" forKey:@"v"];
[params setObject:@"facebook.video.upload" forKey:@"method"];
[params setObject:[self sessionID] forKey:@"session_key"];
[params setObject:apiKey forKey:@"api_key"];
[params setObject:[self signatureForParams:params] forKey:@"sig"];
[params setObject:[NSData dataWithContentsOfURL:movieURL] forKey:[movieURL lastPathComponent]];
[[FBRequest getRequestWithParams:params httpMethod:@"POST" delegate:delegate requestURL:kAPIURL] connect];
*/

NSMutableDictionary *params = [NSMutableDictionary dictionaryWithDictionary:userParams];
[params setObject:accessToken forKey:@"access_token"];
[params setObject:[NSData dataWithContentsOfURL:movieURL] forKey:[movieURL lastPathComponent]];
[FBRequest getRequestWithParams:params httpMethod:@"POST" delegate:delegate requestURL:kAPIURL];

【讨论】：