Redmine

Hello.
I need to create new issue at some server, but file attachment isnt realized in rest api yet, so I am using pure java and httpclient. I havent access to redmine logs and dont know ruby. :)

HttpClient httpClient = new HttpClient();

PostMethod postMethod = new PostMethod(server + "logout");
httpClient.executeMethod(postMethod);
System.out.println(httpClient.executeMethod(postMethod)); // 302
System.out.println(postMethod.getResponseBodyAsString()); // You are being redirected.
postMethod.releaseConnection();

Parser parser = new Parser(server + "login");
HasAttributeFilter attrFilter = new HasAttributeFilter("name", "authenticity_token");
NodeList nodeList = parser.parse(attrFilter);
SimpleNodeIterator iter = nodeList.elements();
String authToken = null;
while (iter.hasMoreNodes()) {
    Node node = iter.nextNode();
    System.out.println(node.getText()); // input with token
    String[] nodeContent = node.getText().split(" ");
    for (String s : nodeContent) {
        if (s.contains("value"))
            authToken = s.substring(s.indexOf("\"") + 1, s.length() - 1);
    }
}
if (authToken != null)
    System.out.println(authToken); // token
postMethod = new PostMethod(server + "login");
Part[] parts = new Part[5];
parts[0] = new StringPart("authenticity_token", authToken);
parts[1] = new StringPart("back_url", server);
parts[2] = new StringPart("username", username);
parts[3] = new StringPart("password", password);
parts[4] = new StringPart("autologin", "1");
postMethod.setRequestEntity(new MultipartRequestEntity(parts, postMethod.getParams()));
System.out.println(httpClient.executeMethod(postMethod)); // 500
System.out.println(postMethod.getResponseBodyAsString()); // Invalid form authenticity token.
postMethod.releaseConnection();

Invalid form authenticity token. - wtf? why?

I have only one idea - ruby not correct handle encoding. But all experiments were unsuccessful. :(

Excuse me for broken english. :)