Через некоторое время борьбы, наконец, удалось запустить его. Оказывается, сначала мне нужно сгенерировать подписанный URL, эквивалентный
gsutil signurl -c 'Content-Type' \
-m RESUMABLE /path/to/your/json_cert_file.json \
gs://your_bucket/file.txt
Затем, используя этот подписанный URL, отправьте пустой запрос POST с заголовками Content-Type и x-goog-resumable:start, что эквивалентно
curl -v -X 'POST' \
-H 'content-type: text/plain' \
-H 'x-goog-resumable:start' \
-d '' '<signedURL>'
Успешный POST вернет статус 201 с заголовком Location с фактическим местоположением, куда вы можете загрузить файл, используя HTTP PUT.
Ниже приведен класс Java, который я написал, чтобы закончить это, с помощью этой статьи
import com.google.api.client.util.Base64;
import com.google.auth.oauth2.ServiceAccountCredentials;
import java.io.DataOutputStream;
import java.io.File;
import java.io.FileInputStream;
import java.io.IOException;
import java.io.InputStream;
import java.net.HttpURLConnection;
import java.net.URL;
import java.net.URLEncoder;
import javax.ws.rs.client.Client;
import javax.ws.rs.client.ClientBuilder;
import javax.ws.rs.client.Entity;
import javax.ws.rs.client.ResponseProcessingException;
import javax.ws.rs.core.Response;
import uploader.Utilities;
public class Uploader {
private ServiceAccountCredentials creds; // Service Account Credentials
private String saEmail; // Service Account email
public Uploader() {
/* Initialize credentials and service account email*/
try (InputStream inputStream = new FileInputStream("C:/cred/Key.json")) {
this.creds = ServiceAccountCredentials.fromStream(
inputStream);
} catch (IOException e) {
e.printStackTrace();
}
this.saEmail = "service account email";
}
/* Sign and return the URL for POST, using credentials from above*/
private String getSignedUrl(String bucketName, String objectName, String mimeType) {
String signed_url = null;
try {
String verb = "POST";
long expiration = System.currentTimeMillis() / 1000 + 60;
String Canonicalized_Extension_Headers = "x-goog-resumable:start";
String content_type = mimeType;
byte[] sr = creds.sign(
(verb + "\n\n" + content_type + "\n" + expiration + "\n" + Canonicalized_Extension_Headers
+
"\n" + "/" + bucketName + "/" + objectName).getBytes());
String url_signature = new String(Base64.encodeBase64(sr));
signed_url = "https://storage.googleapis.com/" + bucketName + "/" + objectName +
"?GoogleAccessId=" + saEmail +
"&Expires=" + expiration +
"&Signature=" + URLEncoder.encode(url_signature, "UTF-8");
} catch (Exception ex) {
ex.printStackTrace();
}
return signed_url;
}
/* Send POST request to the signed URL using custom headers and an empty body, which returns the actual upload location */
public String getLocation(String bucketName, String objectName, String mimeType)
throws IOException {
URL myURL = new URL(getSignedUrl(bucketName, objectName, mimeType));
HttpURLConnection myURLConnection = (HttpURLConnection) myURL.openConnection();
myURLConnection.setRequestMethod("POST");
myURLConnection.setRequestProperty("Content-Type", mimeType);
myURLConnection.setRequestProperty("x-goog-resumable", "start");
// Send post request
myURLConnection.setDoOutput(true);
DataOutputStream wr = new DataOutputStream(myURLConnection.getOutputStream());
wr.flush();
wr.close();
int responseCode = myURLConnection.getResponseCode();
if (responseCode != 201) {
System.out.println("Request Failed");
}
return myURLConnection.getHeaderField("Location");
}
/* Do the actual upload and return the PUT Response*/
public Response doUpload(String url, InputStream inputStream, String mimeType) {
Response response = null;
Client client = ClientBuilder.newClient();
try {
response = client.target(url)
.request()
.put(Entity.entity(inputStream, mimeType));
if (response.getStatus() != 200) {
System.out.println("Request failed with " + response.getStatus());
}
} catch (ResponseProcessingException e) {
e.printStackTrace();
}
return response;
}
}
Теперь просто вызовите его в main методе
public static void main(String[] args) throws Exception {
Uploader uploader = new Uploader();
String filePath = "file/path";
File file = new File(filePath);
byte[] bytes = Utilities.fileToByteArray(file); // convert file to bytes
String mimeType = Utilities.getMimeType(bytes); // bytes from above used with tika
String url = uploader.getLocation("bucket", file.getName(), mimeType);
Response r = uploader.doUpload(url, new FileInputStream(file), mimeType);
System.out.println("Response : " + r.getStatus());
System.out.println(r.getHeaders());
}
Надеюсь, это кому-нибудь поможет! Этот метод не требует отправки POST запроса с Jwt в Authorization Bearer.