问题
Looking over the documentation of NSURLSession
and NSURLSessionConfiguration
, I was under the impression I should configure it with a dictionary like the following:
// Create a dictionary to describe the proxy
NSDictionary *proxyDict = @{
(NSString *)kCFProxyHostNameKey : @"myProxyHost.com",
(NSString *)kCFProxyPortNumberKey : @"12345",
(NSString *)kCFProxyTypeKey : (NSString*)kCFProxyTypeHTTP
};
// Create a configuration that uses the dictionary
NSURLSessionConfiguration *configuration = [NSURLSessionConfiguration defaultSessionConfiguration];
[configuration setConnectionProxyDictionary:proxyDict];
However, the requests from NSURLSession
created with this configuration connect directly.
回答1:
It turns out, the dictionary keys you want are the Stream variants, they are the ones that resolve down to "HTTPProxy" and such:
NSString* proxyHost = @"myProxyHost.com";
NSNumber* proxyPort = [NSNumber numberWithInt: 12345];
// Create an NSURLSessionConfiguration that uses the proxy
NSDictionary *proxyDict = @{
@"HTTPEnable" : [NSNumber numberWithInt:1],
(NSString *)kCFStreamPropertyHTTPProxyHost : proxyHost,
(NSString *)kCFStreamPropertyHTTPProxyPort : proxyPort,
@"HTTPSEnable" : [NSNumber numberWithInt:1],
(NSString *)kCFStreamPropertyHTTPSProxyHost : proxyHost,
(NSString *)kCFStreamPropertyHTTPSProxyPort : proxyPort,
};
NSURLSessionConfiguration *configuration = [NSURLSessionConfiguration ephemeralSessionConfiguration];
configuration.connectionProxyDictionary = proxyDict;
// Create a NSURLSession with our proxy aware configuration
NSURLSession *session = [NSURLSession sessionWithConfiguration:configuration delegate:self delegateQueue:[NSOperationQueue mainQueue]];
// Form the request
NSURLRequest *request = [NSURLRequest requestWithURL:[NSURL URLWithString:@"https://www.google.com?2"]];
// Dispatch the request on our custom configured session
NSURLSessionDataTask *task = [session dataTaskWithRequest:request completionHandler:
^(NSData *data, NSURLResponse *response, NSError *error) {
NSLog(@"NSURLSession got the response [%@]", response);
NSLog(@"NSURLSession got the data [%@]", data);
}];
NSLog(@"Lets fire up the task!");
[task resume];
回答2:
If anyone needs the swift version of this:
Swift 3
let sessionConfiguration = URLSessionConfiguration.default
sessionConfiguration.connectionProxyDictionary = [
kCFNetworkProxiesHTTPEnable as AnyHashable: true,
kCFNetworkProxiesHTTPPort as AnyHashable: 999, //myPortInt
kCFNetworkProxiesHTTPProxy as AnyHashable: "myProxyUrlString"
]
let session = URLSession(configuration: sessionConfiguration)
回答3:
Since several of Jeff's answer keys were deprecated I use this ones
NSMutableDictionary *proxy=[NSMutableDictionary dictionaryWithDictionary:@{(__bridge NSString *)kCFNetworkProxiesHTTPEnable : @1, (__bridge NSString *)kCFNetworkProxiesHTTPSEnable : @1}];
proxy[(__bridge NSString *)kCFNetworkProxiesHTTPProxy] =host;
proxy[(__bridge NSString *)kCFNetworkProxiesHTTPSProxy]=host;
proxy[(__bridge NSString *)kCFNetworkProxiesHTTPPort] =port;
proxy[(__bridge NSString *)kCFNetworkProxiesHTTPSPort] =port;
proxy[(__bridge NSString *)kCFProxyUsernameKey]=user;
proxy[(__bridge NSString *)kCFProxyPasswordKey]=password;
configuration.connectionProxyDictionary=proxy;
回答4:
kCFProxyPortNumberKey
value should be Int
not String
回答5:
Swift 3 extension
extension URLSession {
func withProxy(proxyURL: String, proxyPort: Int) -> URLSession {
var configuration = self.configuration
configuration.connectionProxyDictionary = [
kCFNetworkProxiesHTTPEnable as AnyHashable : true,
kCFNetworkProxiesHTTPPort as AnyHashable : proxyPort,
kCFNetworkProxiesHTTPProxy as AnyHashable : proxyURL
]
return URLSession(configuration: configuration, delegate: self.delegate, delegateQueue: self.delegateQueue)
}
}
Usage:
let session = URLSession().withProxy(proxyURL: "xxxxxx", proxyPort: 8321)
回答6:
Based on all previous responses, this works for Swift 4, both HTTP and HTTPS:
let proxyHost = "127.0.0.1"
let proxyPort = 8888
let configuration = URLSessionConfiguration.default
configuration.connectionProxyDictionary = [
kCFNetworkProxiesHTTPEnable: true,
kCFNetworkProxiesHTTPProxy: proxyHost,
kCFNetworkProxiesHTTPPort: proxyPort,
kCFNetworkProxiesHTTPSEnable: true,
kCFNetworkProxiesHTTPSProxy: proxyHost,
kCFNetworkProxiesHTTPSPort: proxyPort
]
proxyHost
should be a hostname and not contain any URL scheme.
来源:https://stackoverflow.com/questions/28101582/how-to-programmatically-add-a-proxy-to-an-nsurlsession