It's working now, after many hours. I even had to trace the HTTP request
with Wireshark, it helped me a lot!.
In my case the problem was at the last line of the request. After the image
data is written, I need to write a new empty line and finally the
"--END_OF_PART--".
My working code for Java:
public static String postImage(String url, String accessToken) {
HttpURLConnection conex = null;
OutputStream urlOut = null;
InputStream in = null;
URL serverUrl;
String picasaResponse = "";
String strBase =
"0123456789abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ";
String boundary = "";
/*Randomly generate the boundary string */
for (int i = 0; i < 16; i++) {
int numero = (int) (Math.random() * (strBase.length()));
char caracter = strBase.charAt(numero);
boundary = boundary + caracter;
}
System.out.println("BOUNDARY:" + boundary);
try {
String imagePath =
"C:\\Users\\Dendral\\Pictures\\medusaSmall.jpg";
File fileImage = new File(imagePath);
StringBuilder writeData = new StringBuilder();
writeData.append("--").append(boundary).append("\r\n");
writeData.append("Content-Type: application/atom+xml;\r\n\r\n");
writeData.append("<entry
xmlns='http://www.w3.org/2005/Atom'>\r\n");
writeData.append("<title>plz-to-love-realcat.jpg</title>\r\n");
writeData.append("<summary>Real cat wants attention
too.</summary>\r\n");
writeData.append("<category
scheme=\"http://schemas.google.com/g/2005#kind\"\r\n";);
writeData.append(
"term=\"http://schemas.google.com/photos/2007#photo\"/>\r\n");
writeData.append("</entry>\r\n");
writeData.append("--").append(boundary).append("\r\n");
writeData.append("Content-type: image/jpeg\r\n\r\n");
StringBuilder endOfPart = new StringBuilder();
endOfPart.append("\r\n--").append(boundary).append("--");
long totalLenght = writeData.length() + fileImage.length() +
endOfPart.length();
serverUrl = new URL(url);
conex = (HttpURLConnection) serverUrl.openConnection();
conex.setConnectTimeout(30000);
conex.setReadTimeout(60000);
conex.setRequestMethod("POST");
conex.setDoInput(true);
conex.setDoOutput(true);
conex.setUseCaches(false);
conex.setRequestProperty("Host", "picasaweb.google.com");
conex.setRequestProperty("GData-Version", "2");
conex.setRequestProperty("Content-Length", String.valueOf(
totalLenght));
conex.setRequestProperty("Content-Type", "multipart/related;
boundary=\"" + boundary + "\"");
conex.setRequestProperty("Authorization", "Bearer " +
accessToken);
conex.setRequestProperty("MIME-version", "1.0");
conex.connect();
urlOut = conex.getOutputStream();
DataOutputStream out = new DataOutputStream(urlOut);
out.write(writeData.toString().getBytes());
/*TODO: validate if file exists*/
FileInputStream fileStream = new FileInputStream(fileImage);
byte buf[] = new byte[1024];
int len = 0;
while (len >= 0) {
out.write(buf, 0, len);
len = fileStream.read(buf);
}
out.write(endOfPart.toString().getBytes());
out.flush();
in = conex.getInputStream();
picasaResponse = getResponse(in);
} catch (Exception ioe) {
System.out.println("ERROR:");
ioe.printStackTrace();
try {
picasaResponse = getResponse(conex.getErrorStream());
} catch (Exception e) {
/*Ignore*/
}
} finally {
close(urlOut);
close(in);
if (conex != null) {
conex.disconnect();
}
}
return picasaResponse;
}
postImage(
"https://picasaweb.google.com/data/feed/api/user/default/albumid/THE_ALBUM_ID";
, "YOUR_ACTIVE_ACCESS_TOKEN")
You can also play a little in the
https://developers.google.com/oauthplayground/, generate a "INSERT MEDIA"
request from the 'List of possible operations" and see the very details of
the request.
EOF
El martes, 2 de junio de 2015, 10:47:52 (UTC-5), Prerana Polekar escribió:
>
> Hi Francisco,
>
> Nope no progress on this issue :( I am also able to upload the image
> without metadata but badly stuck in upload with metadata! I think the issue
> is with the binary image data appened to the xml content. I am unable to
> figure out how to correctly append the image data along with xml
> information. Any help or pointers will be highly appreciated!!
>
>
>>
>>>
>>>
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