MD5登陆

MD5登陆

导入第三方框架

#import "ViewController.h"
#import "NSString+Hash.h"
#import "SSKeychain.h"

@interface ViewController ()
@property (weak, nonatomic) IBOutlet UITextField *usernameText;
@property (weak, nonatomic) IBOutlet UITextField *pwdText;
@end

@implementation ViewController

#define kLoginUserNameKey @"LoginUsernameKey"
#define kLoginPwdKey @"LoginPasswordKey"
#define kLoginKeyServiceName @"LoginKeyService"
/**
1. 对用户密码进行base64编码
2. 将编码后的信息保存在用户偏好
3. 介绍base64实现原理
4. md5介绍 & 使用技巧

问题：

无法记住有效的密码

解决办法

SSKeychain
*/
- (void)viewDidLoad {
[super viewDidLoad];

// 读取用户偏好信息
self.usernameText.text = [[NSUserDefaults standardUserDefaults] objectForKey:kLoginUserNameKey];

// 读取账户信息
NSLog(@"%@", [SSKeychain allAccounts]);

NSString *pwd = [SSKeychain passwordForService:kLoginKeyServiceName account:self.usernameText.text];
self.pwdText.text = pwd;

// 删除钥匙串
[SSKeychain deletePasswordForService:kLoginKeyServiceName account:@"zhangsan"];
}

- (IBAction)login {
NSString *username = self.usernameText.text;
NSString *pwd = [self.pwdText.text md5String];

NSLog(@"%@", pwd);

NSString *urlString = @"http://10.0.1.7/login.php";
urlString = [urlString stringByAddingPercentEscapesUsingEncoding:NSUTF8StringEncoding];
NSURL *url = [NSURL URLWithString:urlString];
NSMutableURLRequest *request = [NSMutableURLRequest requestWithURL:url];
request.HTTPMethod = @"POST";

NSString *bodyString = [NSString stringWithFormat:@"username=%@&password=%@", username, pwd];
request.HTTPBody = [bodyString dataUsingEncoding:NSUTF8StringEncoding];

[NSURLConnection sendAsynchronousRequest:request queue:[NSOperationQueue mainQueue] completionHandler:^(NSURLResponse *response, NSData *data, NSError *connectionError) {

NSDictionary *result = [NSJSONSerialization JSONObjectWithData:data options:0 error:NULL];

// 数据处理代码...
NSLog(@"%@", result);
if ([result[@"userId"] intValue] > 0) {
[[NSUserDefaults standardUserDefaults] setObject:username forKey:kLoginUserNameKey];
[[NSUserDefaults standardUserDefaults] synchronize];

// 设置密码
[SSKeychain setPassword:self.pwdText.text forService:kLoginKeyServiceName account:self.usernameText.text];
}
}];
}

@end