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Asked By | Karen S. |
In out Godot 3.1 project, we are trying to use the HTTPClient class to upload a file to a server. (A self-hosted Seafile instance, in this case).
As an initial test, we just send a string (“test test test test”) as a text file.
The parent_dir and relative_path form fields are expected by Seafile.
The code is largely copied from this tutorial.
extends Node2D
# HTTPClient demo
# This simple class can do HTTP requests; it will not block, but it needs to be polled.
func _init():
var err = 0
var http = HTTPClient.new() # Create the Client.
err = http.connect_to_host(SEAFILE_URL, 443, true) # Connect to host/port.
assert(err == OK) # Make sure connection was OK.
# Wait until resolved and connected.
while http.get_status() == HTTPClient.STATUS_CONNECTING or http.get_status() == HTTPClient.STATUS_RESOLVING:
http.poll()
print("Connecting...")
OS.delay_msec(500)
assert(http.get_status() == HTTPClient.STATUS_CONNECTED) # Could not connect
var r = PoolByteArray()
r.append("------WebKitFormBoundary7MA4YWxkTrZu0gW\r\n")
r.append("Content-Disposition: form-data; name=\"file\"; filename=\"test123.txt\"\r\n")
r.append("Content-Type: text/plain\r\n\r\n")
r.append("test test test test")
r.append("------WebKitFormBoundary7MA4YWxkTrZu0gW\r\n")
r.append("Content-Disposition: form-data; name=\"relative_path\"\r\n\r\n")
r.append("SaveFiles")
r.append("------WebKitFormBoundary7MA4YWxkTrZu0gW\r\n")
r.append("Content-Disposition: form-data; name=\"parent_dir\"\r\n\r\n")
r.append("/")
r.append("------WebKitFormBoundary7MA4YWxkTrZu0gW--")
# Some headers
var headers = [
"Content-Type: multipart/form-data; boundary=----WebKitFormBoundary7MA4YWxkTrZu0gW; charset=utf-8",
"Content-Length: " + str(r.size())
]
print("sending: " + r.get_string_from_utf8())
err = http.request_raw(HTTPClient.METHOD_POST, "/seafhttp/upload-aj/TOKEN", headers, r) # Request a page from the site (this one was chunked..)
assert(err == OK) # Make sure all is OK.
while http.get_status() == HTTPClient.STATUS_REQUESTING:
# Keep polling for as long as the request is being processed.
http.poll()
print("Requesting...")
if not OS.has_feature("web"):
OS.delay_msec(500)
else:
# Synchronous HTTP requests are not supported on the web,
# so wait for the next main loop iteration.
yield(Engine.get_main_loop(), "idle_frame")
assert(http.get_status() == HTTPClient.STATUS_BODY or http.get_status() == HTTPClient.STATUS_CONNECTED) # Make sure request finished well.
print("response? ", http.has_response()) # Site might not have a response.
if http.has_response():
# If there is a response...
headers = http.get_response_headers_as_dictionary() # Get response headers.
print("code: ", http.get_response_code()) # Show response code.
print("**headers:\\n", headers) # Show headers.
# Getting the HTTP Body
if http.is_response_chunked():
# Does it use chunks?
print("Response is Chunked!")
else:
# Or just plain Content-Length
var bl = http.get_response_body_length()
print("Response Length: ",bl)
# This method works for both anyway
var rb = PoolByteArray() # Array that will hold the data.
while http.get_status() == HTTPClient.STATUS_BODY:
# While there is body left to be read
http.poll()
var chunk = http.read_response_body_chunk() # Get a chunk.
if chunk.size() == 0:
# Got nothing, wait for buffers to fill a bit.
OS.delay_usec(1000)
else:
rb = rb + chunk # Append to read buffer.
# Done!
print("bytes got: ", rb.size())
var text = rb.get_string_from_ascii()
print("Text: ", text)
Apparently, the file is not send correctly to the server, because the server always responds: {“error”: “No file.”}
Conversely, this Java/OkHttp code here does essentially the same thing, and the request succeeds, the file is uploaded to the server successfully:
public static void main(String[] args) throws IOException {
HttpLoggingInterceptor logging = new HttpLoggingInterceptor();
logging.setLevel(HttpLoggingInterceptor.Level.BODY);
OkHttpClient client = new OkHttpClient.Builder()
.addInterceptor(logging)
.build();
MediaType mediaType = MediaType.parse("multipart/form-data; boundary=----WebKitFormBoundary7MA4YWxkTrZu0gW");
RequestBody body = RequestBody.create(mediaType,
"------WebKitFormBoundary7MA4YWxkTrZu0gW" +
"\r\nContent-Disposition: form-data; name=\"file\"; fileName=\"test123.txt\"" +
"\r\nContent-Type: text/plain" +
"\r\n\r\ntest test test test\r\n" +
"------WebKitFormBoundary7MA4YWxkTrZu0gW" +
"\r\nContent-Disposition: form-data; name=\"relative_path\"" +
"\r\n\r\nSaveFiles\r\n" +
"------WebKitFormBoundary7MA4YWxkTrZu0gW" +
"\r\nContent-Disposition: form-data; name=\"parent_dir\"" +
"\r\n\r\n/\r\n" +
"------WebKitFormBoundary7MA4YWxkTrZu0gW--");
okhttp3.Request request = new Request.Builder()
.url("SEAFILE_URL/seafhttp/upload-aj/TOKEN")
.post(body)
.addHeader("content-type", "multipart/form-data; boundary=----WebKitFormBoundary7MA4YWxkTrZu0gW")
.build();
Response response = client.newCall(request).execute();
System.out.println(response.toString());
}
Does anybody know what we’re doing wrong?
I’m currently facing the same issue, did you manage to solve this?
chris.brkt | 2022-03-17 00:33
Hi Chris, no, I’m afraid not.
Karen S. | 2022-03-17 08:18