使用AFNetworking和HTTP基本身份验证 [英] Using AFNetworking and HTTP Basic Authentication

问题描述

以下代码成功连接到我的Ruby on Rails API并使用AFNetworking返回JSON。我需要做什么来编辑它以传递用户名和密码，以便我的API可以使用HTTP基本身份验证？

The following code successfully connects to my Ruby on Rails API and returns JSON using AFNetworking. What do I need to do to edit this to pass in a username and password so my API can use HTTP Basic Authentication?

我已经阅读了他们的文档，但我是Objective-C和AFNetworking都是新手，目前还没有意义。

I've read their documentation, but I am new to both Objective-C and AFNetworking and it isn't currently making sense.

NSURL *url = [[NSURL alloc] initWithString:@"http://localhost:3000/tasks.json"];

NSURLRequest *request = [[NSURLRequest alloc] initWithURL:url];

AFJSONRequestOperation *operation = [AFJSONRequestOperation
                                     JSONRequestOperationWithRequest:request
                                     success:^(NSURLRequest *request
                                     , NSHTTPURLResponse *response
                                     , id JSON) {

    self.tasks = [JSON objectForKey:@"results"];
    [self.activityIndicatorView stopAnimating];
    [self.tableView setHidden:NO];
    [self.tableView reloadData];

    NSLog(@"JSON");

} failure:^(NSURLRequest *request
                , NSHTTPURLResponse *response
                , NSError *error
                , id JSON) {
    NSLog(@"Request Failed with Error: %@, %@", error, error.userInfo);
}];

[operation start];

推荐答案

为AFNetworking 2.x更新了答案

在2.x中，他们取消了AFHTTPClient，因此，您需要使用自己的类扩展AFHTTPRequestOperationManager。然后，您可以从其他代码中调用该类。例如，这是一个扩展AFHTTPRequestOperationManager的示例类：

In 2.x, they did away with AFHTTPClient, so you'll need to extend AFHTTPRequestOperationManager with your own class. Then, you can call that class from other code. For example, here's a sample class that extends the AFHTTPRequestOperationManager:

SBAPIManager.h：

SBAPIManager.h:

#import "AFHTTPRequestOperationManager.h"

@interface SBAPIManager : AFHTTPRequestOperationManager

- (void)setUsername:(NSString *)username andPassword:(NSString *)password;

+ (SBAPIManager *)sharedManager;

@end

SBAPIManager.m：

SBAPIManager.m:

#import "SBAPIManager.h"
#import "AFNetworkActivityIndicatorManager.h"

@implementation SBAPIManager

#pragma mark - Methods

- (void)setUsername:(NSString *)username andPassword:(NSString *)password
{
    [self.requestSerializer clearAuthorizationHeader];
    [self.requestSerializer setAuthorizationHeaderFieldWithUsername:username password:password];
}

#pragma mark - Initialization

- (id)initWithBaseURL:(NSURL *)url
{
    self = [super initWithBaseURL:url];
    if(!self)
        return nil;

    self.requestSerializer = [AFJSONRequestSerializer serializer];

    [[AFNetworkActivityIndicatorManager sharedManager] setEnabled:YES];

    return self;
}

#pragma mark - Singleton Methods

+ (SBAPIManager *)sharedManager
{
    static dispatch_once_t pred;
    static SBAPIManager *_sharedManager = nil;

    dispatch_once(&pred, ^{ _sharedManager = [[self alloc] initWithBaseURL:[NSURL URLWithString:@"http://localhost:3000"]]; }); // You should probably make this a constant somewhere
    return _sharedManager;
}

@end

然后，在你的代码中，你可以这样称呼：

Then, in your code, you can call it like this:

[[SBAPIManager sharedManager] setUsername:yourUsernameVariableHere andPassword:yourPasswordVariableHere];

[[SBAPIManager sharedManager] GET:@"/tasks.json" parameters:nil success:^(AFHTTPRequestOperation *operation, id responseObject) {
    self.tasks = [responseObject objectForKey:@"results"];
    [self.activityIndicatorView stopAnimating];
    [self.tableView setHidden:NO];
    [self.tableView reloadData];

    NSLog(@"JSON");
} failure:^(AFHTTPRequestOperation *operation, NSError *error) {
    // error stuff here
}];

---

对于AFNetworking 1.x：

AFNetworking中的最佳做法是使用您自己的类扩展AFHTTPClient。然后，您可以从其他代码中调用该类。例如，这是一个扩展AFHTTPClient的示例类：

---

For AFNetworking 1.x:

The best practice for this in AFNetworking is to extend the AFHTTPClient with your own class. Then, you can call that class from other code. For example, here's a sample class that extends the AFHTTPClient:

SBAPIManager.h：

SBAPIManager.h:

#import "AFNetworking/AFHTTPClient.h"

@interface SBAPIManager : AFHTTPClient

- (void)setUsername:(NSString *)username andPassword:(NSString *)password;

+ (SBAPIManager *)sharedManager;

@end

SBAPIManager.m：

SBAPIManager.m:

#import "SBAPIManager.h"
#import "AFJSONRequestOperation.h"
#import "AFNetworkActivityIndicatorManager.h"

@implementation SBAPIManager

#pragma mark - Methods

- (void)setUsername:(NSString *)username andPassword:(NSString *)password
{
    [self clearAuthorizationHeader];    
    [self setAuthorizationHeaderWithUsername:username password:password];
}

#pragma mark - Initialization

- (id)initWithBaseURL:(NSURL *)url
{
    self = [super initWithBaseURL:url];
    if(!self)
        return nil;

    [self registerHTTPOperationClass:[AFJSONRequestOperation class]];
    [self setDefaultHeader:@"Accept" value:@"application/json"];
    [self setParameterEncoding:AFJSONParameterEncoding];

    [[AFNetworkActivityIndicatorManager sharedManager] setEnabled:YES];

    return self;
}

#pragma mark - Singleton Methods

+ (SBAPIManager *)sharedManager
{
    static dispatch_once_t pred;
    static SBAPIManager *_sharedManager = nil;

    dispatch_once(&pred, ^{ _sharedManager = [[self alloc] initWithBaseURL:[NSURL URLWithString:@"http://localhost:3000"]]; }); // You should probably make this a constant somewhere
    return _sharedManager;
}

@end

然后，在你的代码中，你可以这样称呼：

Then, in your code, you can call it like this:

[[SBAPIManager sharedManager] setUsername:yourUsernameVariableHere andPassword:yourPasswordVariableHere];

[[SBAPIManager sharedManager] getPath:@"/tasks.json" parameters:nil success:^(AFHTTPRequestOperation *operation, id responseObject) {
    self.tasks = [responseObject objectForKey:@"results"];
    [self.activityIndicatorView stopAnimating];
    [self.tableView setHidden:NO];
    [self.tableView reloadData];

    NSLog(@"JSON");
} failure:^(AFHTTPRequestOperation *operation, NSError *error) {
    // error stuff here
}];

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