SSLチャネルを使用してWebサービスを使用するのは初めてです。かなり良い検索を行った後、NSURLConnection デリゲート API を使用して SSL/HTTPS 認証を実行する方法を見つけました。以下は、実際の認証を行うコード スニペットです。
- (void)connection:(NSURLConnection *)connection willSendRequestForAuthenticationChallenge:(NSURLAuthenticationChallenge *)challenge {
[self printLogToConsole:@"Authenticating...."];
[self printLogToConsole:[NSString stringWithFormat:@"\n%@\n", [challenge description]]];
NSLog(@"\n\nserverTrust: %@\n", [[challenge protectionSpace] serverTrust]);
/* Extract the server certificate for trust validation
*/
NSURLProtectionSpace *protectionSpace = [challenge protectionSpace];
assert(protectionSpace);
SecTrustRef trust = [protectionSpace serverTrust];
assert(trust);
CFRetain(trust); // Make sure this thing stays around until we're done with it
NSURLCredential *credential = [NSURLCredential credentialForTrust:trust];
/* On iOS
* we need to convert it to 'der' certificate. It can be done easily through Terminal as follows:
* $ openssl x509 -in certificate.pem -outform der -out rootcert.der
*/
NSString *path = [[NSBundle mainBundle] pathForResource:@"rootcert" ofType:@"der"];
assert(path);
NSData *data = [NSData dataWithContentsOfFile:path];
assert(data);
/* Set up the array of certificates, we will authenticate against and create credentials */
SecCertificateRef rtCertificate = SecCertificateCreateWithData(NULL, CFBridgingRetain(data));
const void *array[1] = { rtCertificate };
trustedCerts = CFArrayCreate(NULL, array, 1, &kCFTypeArrayCallBacks);
CFRelease(rtCertificate); // for completeness, really does not matter
/* Build up the trust anchor using our root cert */
int err;
SecTrustResultType trustResult = 0;
err = SecTrustSetAnchorCertificates(trust, trustedCerts);
if (err == noErr) {
err = SecTrustEvaluate(trust, &trustResult);
}
CFRelease(trust); // OK, now we're done with it
[self printLogToConsole:[NSString stringWithFormat:@"trustResult: %d\n", trustResult]];
/* http://developer.apple.com/library/mac/#qa/qa1360/_index.html
*/
BOOL trusted = (err == noErr) && ((trustResult == kSecTrustResultProceed) || (trustResult == kSecTrustResultConfirm) || (trustResult == kSecTrustResultUnspecified));
// Return based on whether we decided to trust or not
if (trusted) {
[[challenge sender] useCredential:credential forAuthenticationChallenge:challenge];
[self printLogToConsole:@"Success! Trust validation successful."];
} else {
[self printLogToConsole:@"Failed! Trust evaluation failed for service root certificate.\n"];
[[challenge sender] cancelAuthenticationChallenge:challenge];
}
}
しかし、次のエラーが発生します。
2012-06-11 17:10:12.541 SecureLogin[3424:f803] Error during connection: Error Domain=NSURLErrorDomain Code=-1012 "The operation couldn’t be completed. (NSURLErrorDomain error -1012.)" UserInfo=0x682c790 {NSErrorFailingURLKey=https://staging.esecure.url/authentication/signin/merchants, NSErrorFailingURLStringKey=https://staging.esecure.url/authentication/signin/merchants}
サーバーから取得して「der」形式に変換したものと同じ証明書を使用しています。iOS 5.x 用のアプリを作成しています。何かを見逃しているかどうかはわかりません。あなたの提案を教えてください。
ありがとう。
編集 ここで証明書を調べた後、出力は次のようになります。
何か問題がある場合はお知らせください。
ありがとう。