sina微博oauth第三方 登陸

SDK:https://github.com/JimLiu/WeiboSDK

這篇文章具體談談在iOS上如何經過新浪微博帳戶登陸應用。

在討論這個以前，不得不說到OAuth。這是個什麼玩意呢？按照官方的說法，OAuth是：An open protocol to allow secure API authorization in a simple and standard method from desktop and web applications.

大概意思是說OAUTH是一種開放的協議，爲桌面程序或者基於BS的web應用提供了一種簡單的，標準的方式去訪問須要用戶受權的API服務。

也就是說，經過OAuth，應用或者網站服務能夠獲取用戶的受權，但又不會獲取到用戶的帳戶信息（好比登陸名和密碼）。這裏的受權包括：容許向用戶發送某些信息，容許向用戶提供訪問網站的權限等等。

其實，對於大部分應用來講，只須要驗證用戶是否屬於新浪微博用戶，若是屬於，那也自動是個人用戶，若是不屬於，那麼請用戶就地註冊一個帳戶。換句話說，你將新浪微博的幾億用戶自動認可成爲你的網站用戶，而不須要這幾億用戶經過註冊才能使用你的應用。因此，這是典型的一種YY思想，YY你瞬間得到了幾億用戶！！

既然OAuth是一個協議，那麼就須要用編程語言去實現它。目前，各類版本的OAuth基本均可以在google code下載到，包括C，C++，C#，JS，PHP等等。固然，確定會有objective-C，不然，我也不會寫這篇文章了。

OK，假設已經有了一個版本的Objective-C的OAuth的實現。下面就利用它來實現微博帳戶在iOS上的登陸。

第一步：註冊應用。

能夠經過新浪微博的開放平臺去註冊一個應用。以後你會獲得一個App Key和一個App Secret。擁有它們，你才能夠申請權限。

假設你的App Key是「1234567890」，App Secret是「abcdefghijklmnopqrstuvwxyz"

第二步：寫代碼。

將獲取到的OAuth的objective-C版本加入你的project中。將你申請到的Key和Secret作爲兩個變量定義並賦值。

對於OAuth來講，不少細節不須要咱們去關注的，只要知道幾個重要的步驟便可：

1. 建立一個request，這個request包含key和secret的信息，用於向新浪微博申請得到對應用戶的權限。

2. 經過request向新浪微博發出請求，告訴新浪微博說：我是一個合法的註冊過的應用，如今準備向大人您申請得到用戶的權限，請您高擡貴手。

3. 得到未受權的 Request Key。這個得到未受權的 Request Key就至關於放行條，也就是新浪微博容許你開始獲取用戶的權限。

4. 根據這個Request Key的內容，得到一個url地址，這個地址頁面就是想登陸你應用的用戶輸入用戶名和密碼的地方。注意的是，這個url是屬於新浪微博爲你的這個應用建立的，是屬於新浪微博的。調用iOS的接口，從瀏覽器打開這個url界面。

5. 用戶在上述登陸界面輸入本身的用戶名和密碼，成功登陸以後（實際上是新浪微博認證此用戶是註冊了新浪微博的用戶），你能夠得到已受權的 Access KEY。這個Access Key就包含了用戶多登陸信息（包括暱稱、用戶ID等等，這裏的暱稱是指用戶顯示在新浪微博上的名字，而不是用戶的登陸名）。

6. 到目前爲止，你已經肯定用戶是新浪微博的用戶了，天然也是你的應用的用戶（繼續YY），因此接下去，你就趕忙容許用戶登陸成功，進入你的應用主界面，享受你的應用程序了。還愣着幹嗎，翠花，上酸菜！！

    找到一個objective-c實現的OAuth，而且對着每一步（第六步除外，第六步是在你本身的project中實現。你總不能讓OAuth給你上酸菜吧），找到實現每一步功能的函數，而後加入你本身的project中。

代碼:

#import <Foundation/Foundation.h>

@interface SinaCodePathAndDic : NSObject
+(NSString *)writeToFilePath;

+(NSMutableDictionary *)code;
@end

#import "SinaCodePathAndDic.h"

@implementation SinaCodePathAndDic
+(NSString *)writeToFilePath
{
    NSString *fileName=[NSHomeDirectory() stringByAppendingPathComponent:@"tmp/sinacode.plist"];
    return fileName;
}

+(NSMutableDictionary *)code
{
    NSString *fileName=[NSHomeDirectory() stringByAppendingPathComponent:@"tmp/sinacode.plist"];
   
    NSMutableDictionary * codeDic = [NSMutableDictionary dictionaryWithContentsOfFile:fileName];
   
    return codeDic;
}

@end

#import <Foundation/Foundation.h>

#define SinaAppkey @"309949296"
#define SinaAppSecret @"a86376995071dc71a8616035c3d89176"
#define SinaCOMEBACK_URL @"http://www.m-bao.com"

#define URL_Authorize    @"https://api.weibo.com/oauth2/authorize"        ////使用瀏覽器受權request token (這個url加上參數在瀏覽器執行)
#define URL_Access        @"https://api.weibo.com/oauth2/access_token"  //獲取access token
#define URL_SHARE_TEXT @"http://api.t.sina.com.cn/statuses/update.json"
#define URL_SHARE_PIC @"https://api.weibo.com/2/statuses/upload.json"



#define TOKEN_USER_ID    @"token_userId"
#define TOKEN_PREFIX    @"token_weibo"
#define TOKEN_PROVIDER    @"token_sina"

#import <Foundation/Foundation.h>
#import <CommonCrypto/CommonDigest.h>



@interface SinaShareURL : NSObject{
   
 
}

-(id)initWithText:(NSString *)text_;
-(id)initWithText:(NSString *)text_ andPic:(UIImage *)pic_;
+(BOOL)isDic;


@end
#import "SinaShareURL.h"
#import "SinaKey.h"
#import "SinaToken.h"
#import "URLEncode.h"
#import "JSON.h"
#define SHAREURL @"https://api.weibo.com/2/statuses/repost.json"


@implementation SinaShareURL




+(BOOL)isDic
{
    NSDictionary * DIC=[NSDictionary dictionaryWithDictionary:[SinaToken userDataAndToken]];
    if (![DIC valueForKey:@"access_token"])
    {
        return NO;
    }
    return YES;
}

-(id)initWithText:(NSString *)text_
{
    NSDictionary * DIC=[NSDictionary dictionaryWithDictionary:[SinaToken userDataAndToken]];
    NSURL * url_ = [NSURL URLWithString:[NSString stringWithFormat:@"https://api.weibo.com/2/statuses/update.json?access_token=%@",[DIC valueForKey:@"access_token"]]];
   
    NSString * str_ = [NSString stringWithFormat:@"status=%@",[URLEncode encodeUrlStr:text_]];
    NSData * data = [str_ dataUsingEncoding:NSUTF8StringEncoding];
   
    NSMutableURLRequest * request = [NSMutableURLRequest requestWithURL:url_];
   
    [request setHTTPMethod:@"POST"];
    [request setHTTPBody:data];
   
   
    [NSURLConnection connectionWithRequest:request delegate:self];
   
    return self;
}

-(id)initWithText:(NSString *)text_ andPic:(UIImage *)pic_
{
    NSDictionary * DIC=[NSDictionary dictionaryWithDictionary:[SinaToken userDataAndToken]];
   
    NSURL * url_ = [NSURL URLWithString:[NSString stringWithFormat:@"https://api.weibo.com/2/statuses/upload.json?access_token=%@",[DIC valueForKey:@"access_token"]]];
    NSMutableURLRequest * request = [NSMutableURLRequest requestWithURL:url_];
    UIImage * image_ = pic_;
   
    NSData * imgData_ = UIImageJPEGRepresentation(image_, 0);
   
    NSString *boundary = @"AAAVVVAAA";
    NSString *boundaryEnd = [NSString stringWithFormat:@"\r\n--%@--\r\n",boundary];
    NSString *Content_Type = [NSString stringWithFormat:@"multipart/form-data; boundary=%@",boundary];
   
    NSMutableString *bodyString = [NSMutableString stringWithCapacity:100];
    [bodyString appendFormat:@"--%@",boundary];
    [bodyString appendString:@"\r\nContent-Disposition: form-data; name="status"\r\n\r\n"];
    if (text_) {
        [bodyString appendString:[URLEncode encodeUrlStr:text_]];
    }
    else{
        [bodyString appendString:[URLEncode encodeUrlStr:@"  "]];
       
    }
    [bodyString appendFormat:@"\r\n--%@",boundary];
    [bodyString appendString:@"\r\nContent-Disposition: form-data; name="pic"; filename="image.jpg"\r\nContent-Type: image/jpeg\r\n\r\n"];
   
    //data
    NSMutableData *bodyDataWithPic = [NSMutableData dataWithData:[bodyString dataUsingEncoding:NSUTF8StringEncoding]];
    [bodyDataWithPic appendData:imgData_];
    [bodyDataWithPic appendData:[boundaryEnd dataUsingEncoding:NSUTF8StringEncoding]];
   
    //set header
    [request setValue:Content_Type forHTTPHeaderField:@"Content-Type"];
    [request setValue:[NSString stringWithFormat:@"%d",[bodyDataWithPic length]] forHTTPHeaderField:@"Content-Length"];
   
    [request setHTTPBody:bodyDataWithPic];
    [request setHTTPMethod:@"POST"];
   
    [NSURLConnection connectionWithRequest:request delegate:self];
    return self;
   
}
-(void)connection:(NSURLConnection *)connection didReceiveData:(NSData *)data
{
    NSString * str = [[NSString alloc] initWithData:data encoding:NSUTF8StringEncoding];
    NSLog(@"asd=%@",[str JSONValue]);
    //    NSLog(@"111%@",data);
}
-(void)connectionDidFinishLoading:(NSURLConnection *)connection
{
    //    NSString * str = [[NSString alloc] initWithData:data_ encoding:NSUTF8StringEncoding];
    //    NSLog(@"asd=%@",[str JSONValue]);
    [UIApplication sharedApplication].networkActivityIndicatorVisible = NO;
}

@end
#import <Foundation/Foundation.h>
@protocol SinaTokenDeletage <NSObject>

- (void)tokenSaveOkayForSina;

@end
@interface SinaToken : NSObject{
    NSMutableData * data;
    id<SinaTokenDeletage>deletage;
}

@property (nonatomic,assign) id<SinaTokenDeletage>deletage;

- (void)getToken;
-(void)removeToken;

+(NSString *)writeToFilePath;

+(NSMutableDictionary *)userDataAndToken;

@end
#import "SinaToken.h"
#import "SinaUrl.h"
#import "JSON.h"
@implementation SinaToken
@synthesize deletage;
- (void)dealloc
{
    if (data) {
        [data release];
    }
    [super dealloc];
}
+(NSString *)writeToFilePath
{
    NSString *fileName=[NSHomeDirectory() stringByAppendingPathComponent:@"tmp/sinauser.data"];
    return fileName;
}

+(NSMutableDictionary *)userDataAndToken
{
    NSString *fileName=[NSHomeDirectory() stringByAppendingPathComponent:@"tmp/sinauser.data"];
   
    NSData * data = [NSData dataWithContentsOfFile:fileName];
   
    NSString * dataStr = [[NSString alloc] initWithData:data encoding:NSUTF8StringEncoding];
   
    NSMutableDictionary * userDic = [dataStr JSONValue];
    NSLog(@"%@",userDic);
   
    return userDic;
}

- (void)getToken
{
    data = [[NSMutableData alloc] init];
   
    NSURL * url_ = [NSURL URLWithString:[SinaUrl SinaGetToKenURLString]];
   
    NSLog(@"cc=%@",[SinaUrl SinaGetToKenURLString]);
   
    NSMutableURLRequest * request = [NSMutableURLRequest requestWithURL:url_];
    [request setHTTPMethod:@"POST"];
    [NSURLConnection connectionWithRequest:request delegate:self];
}

-(void)connection:(NSURLConnection *)connection didReceiveData:(NSData *)_data
{
//    NSLog(@"22222%@",data);
    [data appendData:_data];
}

-(void)connectionDidFinishLoading:(NSURLConnection *)connection
{
     NSLog(@"!!!!!!!!!!!%@,",data);
    NSString *fileName=[NSHomeDirectory() stringByAppendingPathComponent:@"tmp/sinauser.data"];
   
    NSLog(@"%@,",data);
    [data writeToFile:fileName atomically:YES];
   
    if (deletage) {
        [deletage tokenSaveOkayForSina];
    }
}
-(void)removeToken
{
    NSFileManager* fileManager = [NSFileManager defaultManager];
    NSString *fileName=[NSHomeDirectory() stringByAppendingPathComponent:@"tmp/sinauser.data"];
    [fileManager removeItemAtPath:fileName error:nil];
   
    NSLog(@"%@",fileName);
   
}
@end
#import <Foundation/Foundation.h>
#import "SinaKey.h"
@interface SinaUrl : NSObject{}


+(NSString *)SinaUrlString;
+(NSString *)SinaGetToKenURLString;
//+(NSString *)SinaShareUrlString;

@end
#import "SinaUrl.h"
#import "SinaCodePathAndDic.h"
@implementation SinaUrl
+(NSString *)SinaUrlString{
    NSString * parameter = @"";
   
    NSMutableArray * urlArray = [[NSMutableArray alloc] init];
    [urlArray addObject:[NSString stringWithFormat:@"client_id=%@",SinaAppkey]];
    [urlArray addObject:[NSString stringWithFormat:@"redirect_uri=%@",SinaCOMEBACK_URL]];
    [urlArray addObject:[NSString stringWithFormat:@"display=%@",@"mobile"]];
    for (int i=0; i<[urlArray count]; i++) {
       
        if (i==0) {
            parameter = [[parameter stringByAppendingString:@"?"] stringByAppendingString:[urlArray objectAtIndex:i]];
        }else{
            parameter = [[parameter stringByAppendingString:@"&"] stringByAppendingString:[urlArray objectAtIndex:i]];
        }
    }
   
    NSString * urlString = [URL_Authorize copy];
   
    urlString = [urlString stringByAppendingString:parameter];
   
    [urlArray release];
   
    return urlString;

}
+(NSString *)SinaGetToKenURLString
{
    NSString * parameter = @"";
   
    NSMutableArray * urlArray = [[NSMutableArray alloc] init];
    [urlArray addObject:@"grant_type=authorization_code"];
    [urlArray addObject:[NSString stringWithFormat:@"code=%@",[[SinaCodePathAndDic code] objectForKey:@"code"]]];
    [urlArray addObject:[NSString stringWithFormat:@"client_id=%@",SinaAppkey]];
    [urlArray addObject:[NSString stringWithFormat:@"redirect_uri=%@",SinaCOMEBACK_URL]];
    [urlArray addObject:[NSString stringWithFormat:@"client_secret=%@",SinaAppSecret]];
   
    for (int i=0; i<[urlArray count]; i++) {
       
        if (i==0) {
            parameter = [[parameter stringByAppendingString:@"?"] stringByAppendingString:[urlArray objectAtIndex:i]];
        }else{
            parameter = [[parameter stringByAppendingString:@"&"] stringByAppendingString:[urlArray objectAtIndex:i]];
        }
    }
   
    NSString * urlString = [URL_Access copy];
   
    urlString = [urlString stringByAppendingString:parameter];
   
    return urlString;

   
}
@end
#import <UIKit/UIKit.h>
#import "MainViewController.h"
@protocol SinaWebViewControllerDeletage <NSObject>

- (void)hasCodeForSina;

@end

@interface SinaWebViewController : MainViewController<UIWebViewDelegate>{
    UIWebView * web;
    NSMutableData * data;
    id<SinaWebViewControllerDeletage>deletage;
}
@property (nonatomic,assign) id<SinaWebViewControllerDeletage>deletage;
@end
#import "SinaWebViewController.h"
#import "SinaUrl.h"
#import "SinaCodePathAndDic.h"
@implementation SinaWebViewController
@synthesize deletage;
- (id)initWithNibName:(NSString *)nibNameOrNil bundle:(NSBundle *)nibBundleOrNil
{
    self = [super initWithNibName:nibNameOrNil bundle:nibBundleOrNil];
    if (self) {
        // Custom initialization
    }
    return self;
}
-(void)dealloc
{
    [web release];
    [data release];
    [super dealloc];

}
- (void)didReceiveMemoryWarning
{
    // Releases the view if it doesn't have a superview.
    [super didReceiveMemoryWarning];
   
    // Release any cached data, images, etc that aren't in use.
}

#pragma mark - View lifecycle
-(void)popModeVC
{
    [self dismissModalViewControllerAnimated:YES];
}



// Implement viewDidLoad to do additional setup after loading the view, typically from a nib.
- (void)viewDidLoad
{
    [super viewDidLoad];
   
   
    UINavigationBar * myBar_ = [[UINavigationBar alloc] initWithFrame:CGRectMake(0, 0, 320, 44)];
    [myBar_ setTintColor:[UIColor orangeColor]];
   
    UINavigationItem * item_ = [[UINavigationItem alloc] initWithTitle:NSLocalizedString(@"新浪認證", nil)];
   
    UIBarButtonItem * buttonItem_ = [[UIBarButtonItem alloc] initWithTitle:NSLocalizedString(@"返回", nil)
                                                              style:UIBarButtonItemStyleBordered
                                                             target:self
                                                             action:@selector(popModeVC)];
   
    item_.leftBarButtonItem = buttonItem_;
    [buttonItem_ release];
   
    [myBar_ pushNavigationItem:item_ animated:NO];
    [item_ release];
   
    [self.view addSubview:myBar_];   
    web = [[UIWebView alloc] initWithFrame:CGRectMake(0, 44, 320, 480)];
    [web setDelegate:self];
    NSURL * url = [NSURL URLWithString:[SinaUrl SinaUrlString]];
    NSLog(@"URL=%@",url);
    NSURLRequest * re = [NSURLRequest requestWithURL:url];
    [web loadRequest:re];
   
    data = [[NSMutableData alloc] init];
   
    [self.view addSubview:web];
}
- (BOOL)webView:(UIWebView *)webView shouldStartLoadWithRequest:(NSURLRequest *)request navigationType:(UIWebViewNavigationType)navigationType
{
   
    NSString * urlStr=[[request URL] relativeString];     
    NSString * str=[[urlStr componentsSeparatedByString:@"?"] objectAtIndex:0];
    if ([str isEqualToString:@"http://www.m-bao.com/"]) {
       

        NSString * codeStr=[[[[urlStr componentsSeparatedByString:@"code="] objectAtIndex:1] componentsSeparatedByString:@"&"]objectAtIndex:0];
       
        NSMutableDictionary * codeDic = [NSMutableDictionary dictionary];
        [codeDic setValue:codeStr forKey:@"code"];
        NSLog(@"%@",codeStr);
        [codeDic writeToFile:[SinaCodePathAndDic writeToFilePath] atomically:YES];
       
        if (deletage) {
            [deletage hasCodeForSina];
        }
       
        [self dismissModalViewControllerAnimated:YES];
       
    }else
    {
    }
    return YES;
}

- (void)webViewDidStartLoad:(UIWebView *)webView
{
    [self webStartLoad];
}
- (void)webViewDidFinishLoad:(UIWebView *)webView
{
    [self webFinishLoad];
}



- (void)viewDidUnload
{
    [super viewDidUnload];
    // Release any retained subviews of the main view.
    // e.g. self.myOutlet = nil;
}

- (BOOL)shouldAutorotateToInterfaceOrientation:(UIInterfaceOrientation)interfaceOrientation
{
    // Return YES for supported orientations
    return (interfaceOrientation == UIInterfaceOrientationPortrait);
}

@end