我正在尝试改进API连接，我想我会给Flickr一个去。我收到错误＆＃34; oauth_problem = signature_invalid＆＃34;我不完全确定错误是什么。我认为错误可能是什么; Flickr需要UTF-8编码，而我正在使用Base64，如果问题是，我不完全确定如何进行UTF-8编码。另一种可能性是我的＆＃34; oauth_callback＆＃34;我只是添加他们的例子，因为我没有网站。如果您可以查看一下，并就可能导致的问题给我一些反馈＆＃34; signature_invalid＆＃34;。
https://www.flickr.com/services/api/
Flickr API期望所有数据都是UTF-8编码。
结果
Flickr示例：将具有如下所示的基本字符串：
GET&https%3A%2F%2Fwww.flickr.com%2Fservices%2Foauth%2Frequest_token&oauth_callback%3Dhttp%253A%252F%252Fwww.example.com%26oauth_consumer_key%3D653e7a6ecc1d528c516cc8f92cf98611%26oauth_nonce%3D95613465%26oauth_signature_method%3DHMAC-SHA1%26oauth_timestamp%3D1305586162%26oauth_version%3D1.0
我得到的是什么：
GET&https%3A%2F%2Fwww.flickr.com%2Fservices%2Foauth%2Frequest_token&oauth_callback%3Dhttp%253A%252F%252Fwww.example.com%26oauth_consumer_key%3D3eec949a9a557a25fdea939f765f49d4%26oauth_nonce%3D112111102120104%26oauth_signature_method%3DHMAC-SHA1%26oauth_timestamp%3D1437587991%26oauth_version%3D1.0
浏览器中显示的是什么：
oauth_problem=signature_invalid&debug_sbs=GET&https%3A%2F%2Fwww.flickr.com%2Fservices%2Foauth%2Frequest_token&oauth_callback%3Dhttp%253A%252F%252Fwww.example.com%26oauth_consumer_key%3D3eec949a9a557a25fdea939f765f49d4%26oauth_nonce%3D98115%26oauth_signature_method%3DHMAC-SHA1%26oauth_timestamp%3D1437587180%26oauth_version%3D1.0
实施
public class SigningRequests {
public static void getSigningRequests() {
List<String> params = new ArrayList<>(Arrays.asList(generateOauthParams()));
String[] template = new String[0];
params.add("oauth_signature=" + sign(Constants.METHOD_GET, Constants.METHOD_REQUEST_TOKEN, params.toArray(template)));
try {
URL url = new URL(Constants.METHOD_REQUEST_TOKEN + "?" + paramify(params.toArray(template)));
URLConnection api = url.openConnection();
String line;
StringBuilder builder = new StringBuilder();
BufferedReader reader = new BufferedReader(new InputStreamReader(api.getInputStream()));
while ((line = reader.readLine()) != null) builder.append(line);
Log.e("Respinse", line.toString());
} catch (Exception e) {
Log.e("ERROR", e.toString());
e.printStackTrace();
}
}
private static String[] generateOauthParams() {
return new String[]{
"oauth_nonce=" + nonce(),
"oauth_timestamp=" + time_stamp,
"oauth_consumer_key=" + Constants.METHOD_KEY,
"oauth_signature_method=HMAC-SHA1",
"oauth_version=1.0",
"oauth_callback=http%3A%2F%2Fwww.example.com"};
}
private static String sign(String method, String uri, String[] params) {
String[] p = {method, Uri.encode(uri), Uri.encode(paramify(params))};
String s = join(p, "&");
SecretKey sk = new SecretKeySpec(Constants.METHOD_SECRET.getBytes(), "HmacSHA1");
try {
Mac m = Mac.getInstance("HmacSHA1");
m.init(sk);
return Uri.encode(new String(Base64.encode(m.doFinal(s.getBytes()), Base64.DEFAULT)).trim());
} catch (java.security.NoSuchAlgorithmException e) {
Log.w("FAIL_ALG", e.getMessage());
return null;
} catch (java.security.InvalidKeyException e) {
Log.w("FAIL_INVALID_KEY", e.getMessage());
return null;
}
}
private static int time_stamp = (int) (new Date().getTime() / 1000);
private static String nonce() {
Random r = new Random();
StringBuilder n = new StringBuilder();
for (int i = 0; i < r.nextInt(8) + 2; i++)
n.append(r.nextInt(26) + 'a');
return n.toString();
}
private static String paramify(String[] params) {
String[] p = Arrays.copyOf(params, params.length);
Arrays.sort(p);
return join(p, "&");
}
private static String join(String[] array, String separator) {
StringBuilder b = new StringBuilder();
for (int i = 0; i < array.length; i++) {
if (i > 0)
b.append(separator);
b.append(array[i]);
}
return b.toString();
}
}