OAuth For Tumblr

testViewController.h

#import <UIKit/UIKit.h>

#import "OAConsumer.h"
#import "OADataFetcher.h"
#import "OAMutableURLRequest.h"

@interface testViewController : UIViewController {
    IBOutlet UIButton *btnLogin;
    IBOutlet UIWebView *oauthWebView;
    IBOutlet UILabel *lblUser;
    IBOutlet UILabel *lblAccessToken;
    IBOutlet UILabel *lblAccessTokenSecret;
    IBOutlet UITextField *fieldPostContent;
    IBOutlet UIButton *btnPost;
}
@property (strong, nonatomic) IBOutlet UIButton *btnLogin;
@property (strong, nonatomic) IBOutlet UIWebView *oauthWebView;
@property (strong, nonatomic) IBOutlet UILabel *lblUser;
@property (strong, nonatomic) IBOutlet UILabel *lblAccessToken;
@property (strong, nonatomic) IBOutlet UILabel *lblAccessTokenSecret;
@property (strong, nonatomic) IBOutlet UITextField *fieldPostContent;
@property (strong, nonatomic) IBOutlet UIButton *btnPost;

@property (retain, nonatomic) OAConsumer *consumer;
@property (retain, nonatomic) OAToken *accessToken;

- (IBAction)btnLoginClicked:(id)sender;
- (IBAction)btnPostClicked:(id)sender;

@end

testViewController.m

#import "testViewController.h"

@interface testViewController ()

@end

@implementation testViewController
@synthesize btnLogin;
@synthesize oauthWebView;
@synthesize lblUser;
@synthesize lblAccessToken;
@synthesize lblAccessTokenSecret;
@synthesize fieldPostContent;
@synthesize btnPost;
@synthesize consumer, accessToken;

- (void)viewDidLoad
{
    [super viewDidLoad];
    lblUser.text = @"";
	lblAccessToken.text = @"";
	lblAccessTokenSecret.text = @"";
	
	//最初は認証用のブラウザを表示しない
	oauthWebView.hidden = YES;    
}

- (void)viewDidUnload
{
    btnLogin = nil;
    oauthWebView = nil;
    lblUser = nil;
    lblAccessToken = nil;
    lblAccessTokenSecret = nil;
    [self setBtnLogin:nil];
    [self setOauthWebView:nil];
    [self setLblUser:nil];
    [self setLblAccessToken:nil];
    [self setLblAccessTokenSecret:nil];
    [self setBtnPost:nil];
    [self setFieldPostContent:nil];
    fieldPostContent = nil;
    btnPost = nil;
    [super viewDidUnload];
    // Release any retained subviews of the main view.
}

//認証開始　1.Request token(D)
-(void)startRequestToken {
	//CONSUMER_KEYとCONSUMER_SECRETの設定。Twitterのアプリケーション登録時に取得したものをセットしてください。
	NSString *CONSUMER_KEY = [NSString stringWithString:@"consumer_key"];
	NSString *CONSUMER_SECRET = [NSString stringWithString:@"consumer_secret"];
	
	self.consumer = [[OAConsumer alloc] initWithKey:CONSUMER_KEY
											 secret:CONSUMER_SECRET];
    
	OADataFetcher *fetcher = [[[OADataFetcher alloc] init]autorelease];
    
	NSURL *url = [NSURL URLWithString:@"http://www.tumblr.com/oauth/request_token"];
	OAMutableURLRequest *request = [[[OAMutableURLRequest alloc] initWithURL:url
																	consumer:consumer
																	   token:nil
																	   realm:nil
														   signatureProvider:nil]autorelease];
	[request setHTTPMethod:@"POST"];
	[fetcher fetchDataWithRequest:request 
						 delegate:self
				didFinishSelector:@selector(requestTokenTicket:didFinishGetRequestToken:)
				  didFailSelector:@selector(requestTokenTicket:didFailSubmitterWithError:)];
}

// 1.Request token(D) 正常時 2.Authorize(F)
- (void) requestTokenTicket:(OAServiceTicket *)ticket didFinishGetRequestToken:(NSData *)data {
    if (ticket.didSucceed){
        NSString *responseBody = [[[NSString alloc] initWithData:data 
														encoding:NSUTF8StringEncoding]autorelease];
		
        self.accessToken = [[OAToken alloc] initWithHTTPResponseBody:responseBody];
		
        NSString *address = [NSString stringWithFormat:
							 @"http://www.tumblr.com/oauth/authorize?oauth_token=%@",
                             accessToken.key];
		
        NSURL *url = [NSURL URLWithString:address];
		//ブラウザ表示
		oauthWebView.hidden = NO;
		[oauthWebView loadRequest:[NSURLRequest requestWithURL:url]];
    } else {
		//エラー処理	
	}
}
//エラー時
- (void) requestTokenTicket:(OAServiceTicket *)ticket didFailSubmitterWithError:(NSError *)error {
	//エラー処理	
}

// ブラウザから認証された場合 3.Access token(E)
- (void) backFromBrowser:(NSURL *)responseURL {
	//クエリからaccess tokenを取得
    
    NSDictionary *query = [self queryAsDictionary:[responseURL query]];
    self.accessToken.verifier = [query objectForKey:@"oauth_verifier"];
    
	OADataFetcher *fetcher = [[[OADataFetcher alloc] init]autorelease];
    NSLog(@"secret: %@", accessToken.secret);
	NSURL *url = [NSURL URLWithString:@"http://www.tumblr.com/oauth/access_token"];
	OAMutableURLRequest *request = [[[OAMutableURLRequest alloc] initWithURL:url
																	consumer:consumer
																	   token:accessToken
                                                                       realm:nil
														   signatureProvider:nil]autorelease];
    [request setHTTPMethod:@"POST"];
	[fetcher fetchDataWithRequest:request 
						 delegate:self
				didFinishSelector:@selector(requestTokenTicket:didFinishfetchAccessToken:)
				  didFailSelector:@selector(requestTokenTicket:didFailSubmitterWithError:)];
}

- (void) requestTokenTicket:(OAServiceTicket *)ticket didFinishfetchAccessToken:(NSData *)data {
    NSLog(@"didSucceed: %d", ticket.didSucceed);
    if (ticket.didSucceed){
        NSString *responseBody = [[[NSString alloc] initWithData:data
														encoding:NSUTF8StringEncoding]autorelease];
        self.accessToken = [self.accessToken initWithHTTPResponseBody:responseBody];
        
		//取得できた値を画面に表示する
		NSLog(@"accessToken: %@", self.accessToken);
        // lblUser.text = self.accessToken.screen_name;
		lblAccessToken.text = self.accessToken.key;
		lblAccessTokenSecret.text = self.accessToken.secret;
    } else {
		//エラー処理	
	}
}


// UIWebViewの内容がロード完了した時
- (void)webViewDidFinishLoad:(UIWebView *)webView {
	
	NSURL* url = [NSURL URLWithString:[webView stringByEvaluatingJavaScriptFromString:@"document.URL"]];
	
	//認証了の場合にコールバックされるURL　Twitterのアプリ登録時に設定したURLです。
	NSURL *kanryoURL = [NSURL URLWithString:@"http://team-takoyaki.com/"];
	
	//ロードされたURLと、コールバックされるURLのhostが同じなら、承認されたと見なす
	if ([[url host] isEqualToString:[kanryoURL host]]) {
		//次の処理へ
		[self performSelector:@selector(backFromBrowser:) withObject:url];
		
		//webViewを隠す
		oauthWebView.hidden = YES;
	}	
}

- (BOOL)shouldAutorotateToInterfaceOrientation:(UIInterfaceOrientation)interfaceOrientation
{
    return (interfaceOrientation != UIInterfaceOrientationPortraitUpsideDown);
}

- (IBAction)btnLoginClicked:(id)sender {
    [self performSelector:@selector(startRequestToken)];
}

- (IBAction)btnPostClicked:(id)sender {
    self.accessToken = [[[OAToken alloc] initWithKey:lblAccessToken.text
                                              secret:lblAccessTokenSecret.text] autorelease];
	NSURL *url = [NSURL URLWithString:@"http://api.tumblr.com/v2/blog/t-kashima.tumblr.com/post"];
	OAMutableURLRequest* request = [[[OAMutableURLRequest alloc] initWithURL:url
																	consumer:consumer
																	   token:accessToken
																	   realm:nil
														   signatureProvider:nil] autorelease];
    [request setHTTPMethod:@"POST"];
    OARequestParameter *x1 = [[OARequestParameter alloc] initWithName:@"type" value:@"text"];
	OARequestParameter *x2 = [[OARequestParameter alloc] initWithName:@"body" value:fieldPostContent.text];
	NSArray *params = [NSArray arrayWithObjects:x1, x2, nil];
    
    [request setParameters:params];
    OADataFetcher *fetcher = [[[OADataFetcher alloc] init] autorelease];
	[fetcher fetchDataWithRequest:request
						 delegate:self
				didFinishSelector:@selector(ticket:didFinishWithPost:)
				  didFailSelector:@selector(ticket:didFailWithPostError:)];
	[x1 release];
    [x2 release];
}

- (void)ticket:(OAServiceTicket *)ticket didFinishWithPost:(NSData *)data {
	fieldPostContent.text=@"";
	//ツイート完了を知らせる
}

- (void)ticket:(OAServiceTicket *)ticket didFailWithPostError:(NSError *)error {
	//エラー処理	
}

- (NSDictionary *)queryAsDictionary: (NSString *)query{
    NSArray *components = [query componentsSeparatedByString:@"&"];
    NSMutableDictionary *parameters = [NSMutableDictionary dictionary];
    for (NSString *component in components) {
        NSArray *keyAndValues = [component componentsSeparatedByString:@"="];
        [parameters setObject:[keyAndValues objectAtIndex:1] forKey:[keyAndValues objectAtIndex:0]];
    }
    return parameters;
}
@end