iPhone SDK - Google TTS和编码

Question

我正在开发一个支持多语言的文本到语音的iPhone应用程序.

这是我的请求网址

requestUrlStr = @"http://www.translate.google.com/translate_tts?tl=en&q=hello";

对于英语,上面的网址没有问题

但对中国人来说

requestUrlStr = @"http://www.translate.google.com/translate_tts?tl=zh-TW&q=??";

我知道上面的url会给出'Bad URL',所以我用follow方法将字符串编码成 UTF-8

requestUrlStr = [requestUrlStr stringByAddingPercentEscapesUsingEncoding:NSUTF8StringEncoding];

它会变成

http://www.translate.google.com/translate_tts?tl=zh-CN&q=%E4%BD%A0%E5%A5%BD

然后Google TTS无法识别此中文文本.

Answer 1

你必须伪装成NSURLRequest中默认(appName等)以外的用户代理.试试这个(我用希腊语)...

NSString* userAgent = @"Mozilla/5.0";

NSURL *url = [NSURL URLWithString:[@"http://www.translate.google.com/translate_tts?tl=el&q=????????" 
                                   stringByAddingPercentEscapesUsingEncoding:NSUTF8StringEncoding]];


NSMutableURLRequest* request = [[[NSMutableURLRequest alloc] initWithURL:url] autorelease];

[request setValue:userAgent forHTTPHeaderField:@"User-Agent"];


NSURLResponse* response = nil;
NSError* error = nil;
NSData* data = [NSURLConnection sendSynchronousRequest:request
                                     returningResponse:&response
                                                 error:&error];



[data writeToFile:@"/var/tmp/tts.mp3" atomically:YES];

2017年更新

由于我们最喜欢的公司喜欢更新和弃用的东西,这里是上面的例子,因为它应该是现在...

NSString* text = @"????????";
NSString* lang = @"el";

NSString* sUrl = [NSString stringWithFormat:@"https://translate.google.com/translate_tts?q=%@&tl=%@&client=tw-ob", text, lang];
sUrl = [sUrl stringByAddingPercentEncodingWithAllowedCharacters:[NSCharacterSet URLFragmentAllowedCharacterSet]];
NSURL* url = [NSURL URLWithString:sUrl];

NSMutableURLRequest *request = [NSMutableURLRequest requestWithURL:url];
[request setHTTPMethod:@"GET"];
[request setValue:@"Mozilla/5.0" forHTTPHeaderField:@"User-Agent"];

NSURLSession *session = [NSURLSession sessionWithConfiguration:[NSURLSessionConfiguration defaultSessionConfiguration]
                                                      delegate:nil
                                                 delegateQueue:[NSOperationQueue mainQueue]];

[[session dataTaskWithRequest:request
            completionHandler:^(NSData *data, NSURLResponse *response, NSError *error) {
                [data writeToFile:@"/var/tmp/tts.mp3" atomically:YES];
            }
  ] resume];

的...delegate:nil delegateQueue:[NSOperationQueue mainQueue]可被省略.