我想制作一个在Google阅读器API上使用的应用。但是我发现它没有正式的API - 在App Store指南/批准方面使用非官方API是否存在问题?其他应用程序(Reeder等)会使用它吗?
登录的最佳方法是什么? OAuth是优先方法吗?使用Janrain是个好主意吗?
答案 0 :(得分:7)
坦率地说,Apple并不关心您是否使用Google的非官方API。
我在使用Google阅读器进行同步的RSS阅读器应用程序上为客户工作。我们没有使用OAuth,而是使用标准的HTTP登录信息,它会返回一个cookie,您必须从中提取令牌,以便连续调用各种读者URL。
我可以从我的(旧)概念验证应用程序发布登录代码。 它使用ASIHTTP和一些自定义字符串类别。我们的想法是发送登录请求,获取响应并从响应的cookie头中提取会话ID /身份验证代码。然后,您可以将该会话ID /身份验证代码用于连续呼叫。
#pragma mark -
#pragma mark login
//this is your sessionID token you get from the login
//use this in consecutive calls to google reader
//this method returns you the header string you have to add to your request
//[request addRequestHeader: @"Cookie" value: [self sidHeader]];
- (NSString *) sidHeader
{
return [NSString stringWithFormat: @"SID=%@", [self sid]];
}
- (NSString *) authHeader
{
return [NSString stringWithFormat: @"GoogleLogin auth=%@",[self auth]];
}
//login to your google account and get the session ID
- (void) login
{
NSString *username = @"my.googlelogin@gmail.com";
NSString *password = @"mypassword123";
NSString *loginUrl = @"https://www.google.com/accounts/ClientLogin?client=NNW-Mac";
NSString *source = @"NNW-Mac"; //let's fake NetNewsWire
NSString *continueUrl = @"http://www.google.com";
ASIFormDataRequest *request = [ASIFormDataRequest requestWithURL:[NSURL URLWithString: loginUrl]]; // log in & get cookies
[request addRequestHeader: @"User-Agent" value: @"NetNewsWire/3.2b25 (Mac OS X; http://www.newsgator.com/Individuals/NetNewsWire/)"];
[request setPostValue: username forKey: @"Email"];
[request setPostValue: password forKey: @"Passwd"];
[request setPostValue: @"reader" forKey: @"service"];
[request setPostValue: source forKey: @"source"];
[request setPostValue: continueUrl forKey: @"continue"];
[request setDelegate: self];
[request setDidFailSelector: @selector(loginRequestFailed:)];
[request setDidFinishSelector: @selector(loginRequestFinished:)];
[request start];
}
-(void)loginRequestFinished:(ASIHTTPRequest *)request
{
NSString *responseString = [request responseString];
//login failed
if ([responseString containsString: @"Error=BadAuthentication" ignoringCase: YES])
{
[self setLastError: [self errorWithDescription: @"Bad Username/Passsword" code: 0x001 andErrorLevel: 0x00]];
if ([delegate respondsToSelector: @selector(gReaderLoginDidFail:)])
{
[delegate gReaderLoginDidFail: self];
}
return NO;
}
//captcha required
if ([responseString containsString: @"CaptchaRequired" ignoringCase: YES])
{
[self setLastError: [self errorWithDescription: @"Captcha Required" code: 0x001 andErrorLevel: 0x00]];
if ([delegate respondsToSelector: @selector(gReaderLoginDidFail:)])
{
[delegate gReaderLoginDidFail: self];
}
return NO;
}
//extract SID + auth
NSArray *respArray = [responseString componentsSeparatedByCharactersInSet: [NSCharacterSet newlineCharacterSet]];
NSString *sidString = [respArray objectAtIndex: 0];
sidString = [sidString stringByReplacingOccurrencesOfString: @"SID=" withString: @""];
[self setSid: sidString];
NSString *authString = [respArray objectAtIndex: 2];
authString = [authString stringByReplacingOccurrencesOfString: @"Auth=" withString: @""];
[self setAuth: authString];
//mesage delegate of success
if ([delegate respondsToSelector: @selector(gReaderLoginDidSucceed:)])
{
[delegate gReaderLoginDidSucceed: self];
}
return YES;
}
- (void)loginRequestFailed:(ASIHTTPRequest *)request
{
NSError *error = [request error];
//NSLog(@"login request failed with error: %@", [error localizedDescription]);
[self setLastError: error];
if ([delegate respondsToSelector: @selector(gReaderLoginDidFail:)])
{
[delegate gReaderLoginDidFail: self];
}
}
登录后,您可以使用sid和auth伪造对Reader的API端点的请求。
示例:
- (ASIHTTPRequest *) requestForAPIEndpoint: (NSString *) apiEndpoint
{
ASIHTTPRequest *request = [ASIHTTPRequest requestWithURL:[NSURL URLWithString: apiEndpoint]];
[request addRequestHeader: @"User-Agent" value: @"NetNewsWire/3.2b25 (Mac OS X; http://www.newsgator.com/Individuals/NetNewsWire/)"];
[request addRequestHeader: @"Cookie" value: [self sidHeader]];
[request addRequestHeader: @"Authorization" value: [self authHeader]];
return request;
}
关于Google阅读器及其私有API的有趣读物是http://timbroder.com/2007/08/google-reader-api-functions.html
请务必阅读最新评论:)
/ edit:我更新了代码以使用auth标头(google今年6月推出)。如果您使用OAuth,我想这将是您放置OAuth令牌的地方。 猜测
答案 1 :(得分:6)
我发现这一点:“Google Data API Objective-C Client Library提供了一个iPhone静态库,一个Mac OS X框架和源代码,可以通过Google Data API轻松访问数据。”{{3} } - 太棒了! 但它不包括Reader API(因为它尚未发布)。
我可以通过更改(在OAuthSampleTouch示例中)
来访问APINSString *scope = @"http://www.google.com/m8/feeds/";
在OAuthSampleRootViewControllerTouch.m中
NSString *scope = @"http://www.google.com/reader/api/*";
和
urlStr = @"http://www.google.com/m8/feeds/contacts/default/thin";
到
urlStr = @"http://www.google.com/reader/atom/user/-/label/Design";
其中Design是文件夹名称 - 请查看code.google.com/p/gdata-objectivec-client这是一个很好的帮助。
<强>更新强>
我发现这种技术是最好的/最轻的/不那么复杂的: http://code.google.com/p/pyrfeed/wiki/GoogleReaderAPI