XF 2.1 File upload via API

developr

developr

Active member
I want to add avatars to users via the xenforo api.

PHP: 
function apiCall($action,$scope,$post,$upload=0) {
     $headers = array(
        'Content-type: application/x-www-form-urlencoded',
        'XF-Api-User: 1',
        'XF-Api-Key: '.APIKEY
     );
     if(!$upload) {
          $post = @http_build_query($post);
     }
     $url = 'https://127.0.0.1/api'.$scope;
     $ch = curl_init();
     if($upload) {
          $file = $post['avatar'];
          $mime = mime_content_type($file);
          $info = pathinfo($file);
          $name = $info['basename'];
          $output = new CURLFile($file, $mime, $name);
          $post['avatar'] = $output;
     }
     curl_setopt($ch, CURLOPT_HTTPHEADER, $headers);
     curl_setopt($ch, CURLOPT_URL, $url);
     curl_setopt($ch, CURLOPT_POSTFIELDS,$post);
     curl_setopt($ch, CURLOPT_CUSTOMREQUEST,$action);
     curl_setopt($ch, CURLOPT_RETURNTRANSFER, true);
     $json = curl_exec($ch);
     curl_close($ch);
     return json_decode($json);
}

The API will response with "success" but it doesn't work.

The API require "file" in postdata. But how? A link to the file doesn't work. A resource doesn't work. Without an error it's hard to find a solution.

xenforo.com

REST API endpoints (2.2)

This document assumes you have already created an API key and setup the necessary headers for your request. Learn more about using the API.
xenforo.com xenforo.com
 
Solution
developr
Try and error... now here is the solution.

PHP: 
function apiattach($action,$scope,$post) {
     $headers = array(
        'XF-Api-User: 1',
        'XF-Api-Key: '.APIKEY
     );
     $url = 'https://127.0.0.1/api'.$scope;
     $ch = curl_init();
     $headers = array(
        'Content-type: multipart/form-data',
        'XF-Api-User: 1',
        'XF-Api-Key: '.APIKEY
     );
     $file = $post['avatarurl'];
     $mime = mime_content_type($file);
     $info = pathinfo($file);
     $name = $info['basename'];
     $file = new CURLFile($file, $mime, $name);
     $post['avatar'] = $file;
     curl_setopt($ch, CURLOPT_HTTPHEADER, $headers);
     curl_setopt($ch, CURLOPT_URL, $url);
     curl_setopt($ch, CURLOPT_POSTFIELDS,$post)...
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Try and error... now here is the solution.

PHP: 
function apiattach($action,$scope,$post) {
     $headers = array(
        'XF-Api-User: 1',
        'XF-Api-Key: '.APIKEY
     );
     $url = 'https://127.0.0.1/api'.$scope;
     $ch = curl_init();
     $headers = array(
        'Content-type: multipart/form-data',
        'XF-Api-User: 1',
        'XF-Api-Key: '.APIKEY
     );
     $file = $post['avatarurl'];
     $mime = mime_content_type($file);
     $info = pathinfo($file);
     $name = $info['basename'];
     $file = new CURLFile($file, $mime, $name);
     $post['avatar'] = $file;
     curl_setopt($ch, CURLOPT_HTTPHEADER, $headers);
     curl_setopt($ch, CURLOPT_URL, $url);
     curl_setopt($ch, CURLOPT_POSTFIELDS,$post);
     curl_setopt($ch, CURLOPT_CUSTOMREQUEST,$action);
     curl_setopt($ch, CURLOPT_RETURNTRANSFER, true);
     $json = curl_exec($ch);
     curl_close($ch);
     return json_decode($json);
}
 
Upvote 2 Downvote
Solution
developr said:
Try and error... now here is the solution.

PHP: 
function apiattach($action,$scope,$post) {
     $headers = array(
        'XF-Api-User: 1',
        'XF-Api-Key: '.APIKEY
     );
     $url = 'https://127.0.0.1/api'.$scope;
     $ch = curl_init();
     $headers = array(
        'Content-type: multipart/form-data',
        'XF-Api-User: 1',
        'XF-Api-Key: '.APIKEY
     );
     $file = $post['avatarurl'];
     $mime = mime_content_type($file);
     $info = pathinfo($file);
     $name = $info['basename'];
     $file = new CURLFile($file, $mime, $name);
     $post['avatar'] = $file;
     curl_setopt($ch, CURLOPT_HTTPHEADER, $headers);
     curl_setopt($ch, CURLOPT_URL, $url);
     curl_setopt($ch, CURLOPT_POSTFIELDS,$post);
     curl_setopt($ch, CURLOPT_CUSTOMREQUEST,$action);
     curl_setopt($ch, CURLOPT_RETURNTRANSFER, true);
     $json = curl_exec($ch);
     curl_close($ch);
     return json_decode($json);
}
Click to expand...
Thank you!
 
Upvote 0 Downvote
Hi.

I am trying to call this function

xenforo.com

REST API endpoints (2.2)

This document assumes you have already created an API key and setup the necessary headers for your request. Learn more about using the API.
xenforo.com xenforo.com

from python code but apparently it does not work.

Here is my code:
Python: 
import os, requests
import json
import requests

MY_API_KEY = '...'
FORUM_URL = "https://forums.indiegala.com"

headers             = {     'Content-Type'     : 'multipart/form-data',
                            'XF-Api-User'      : '1',
                            'XF-Api-Key'       : MY_API_KEY }

avatar_url = 'https://www.indiegalacdn.com/imgs/users/1074019/avatar/1588699740.png'

def replace_user_avatar( user_id, avatar ):
    url_to_call             = FORUM_URL +  "/api/users/" + str(user_id) + "/avatar"

    #read raw file here
    response = requests.get(avatar, stream=True)

    data_to_send = {'avatar' : response.raw }
  
    print("calling url: %s, with headers: %s posting data = %s", url_to_call, headers, data_to_send )
    response = requests.post(url_to_call, headers=headers, data=data_to_send  ) 

    print("result = %s", response.text)
              
    if response.status_code == 200:
        response        = json.loads(response.content)
        if response['success']:
            print("replace_user_avatar avatar ok.")
    else:
        print("problem in replace_user_avatar: status code: %s", response.status_code)
        if response.content:
            response_json        = json.loads(response.content)
            print("response : %s", response_json)

test_user_id = 2020
replace_user_avatar(test_user_id, avatar_url )

The problem is that i always get success : true as reply but nothing happens.

Any help would be much much appreciated.
( i tested also with files instead of data in request post but no luck )
 
Last edited by a moderator:
Upvote 0 Downvote
Kruzya said:
On Python and requests library, you need pass uploadable files as additional arguments files. Example is provided here. You can combine data with files.
Click to expand...
Thank you for your reply.

As i said i tried also this 'file' approach:

Python: 
....

headers             = {     'Content-Type'     : 'multipart/form-data',
                            'XF-Api-User'      : '1',
                            'XF-Api-Key'       : MY_API_KEY }

avatar_url = 'https://www.indiegalacdn.com/imgs/users/1074019/avatar/1588699740.png'

def replace_user_avatar( user_id, avatar ):
   
    url_to_call             = FORUM_URL +  "/api/users/" + str(user_id) + "/avatar"

    #read raw file here
    response = requests.get(avatar, stream=True)
    #guess mime type
    mime = MimeTypes()
    mime_type = mime.guess_type(avatar)
    #this does not work
    #data_to_send = {'avatar' : response.raw }
    #this neither
    files = {'avatar': ('avatar_name', response.raw, mime_type ) }
             
    print("calling url: %s, with headers: %s posting data = %s", url_to_call, headers, files )
    response = requests.post(url_to_call, headers=headers, files=files  )  

    print("result = %s", response.text)
                 
    if response.status_code == 200:
        response        = json.loads(response.content)
        if response['success']:
            print("replace_user_avatar avatar ok.")
    else:
        print("problem in replace_user_avatar: status code: %s", response.status_code)
        if response.content:
            response_json        = json.loads(response.content)
            print("response : %s", response_json)

test_user_id = 2020

replace_user_avatar(test_user_id, avatar_url )

But the result is the same.
Success = "true"
But no change in user avatar...
 
Upvote 0 Downvote
Note: in documentation example developers used result of executing open() function. In extended documentation, developers noticed on requirement pass "file-like" object to this array. You just pass already fully read content.
Try something like this. I don't write code on Python, but judging by the documentation and requests internal code, this can work:
Python: 
headers             = {     'Content-Type'     : 'multipart/form-data',
                            'XF-Api-User'      : '1',
                            'XF-Api-Key'       : MY_API_KEY }

avatar_url = 'https://www.indiegalacdn.com/imgs/users/1074019/avatar/1588699740.png'

def replace_user_avatar( user_id, avatar ):
  
    url_to_call             = FORUM_URL +  "/api/users/" + str(user_id) + "/avatar"

    #read raw file here
    response = requests.get(avatar, stream=True)
    #guess mime type
    mime = MimeTypes()
    mime_type = mime.guess_type(avatar)
    #this does not work
    #data_to_send = {'avatar' : response.raw }
    #this neither
    files = {'avatar': ('avatar_name', response.raw.fileno(), mime_type ) }
            
    print("calling url: %s, with headers: %s posting data = %s", url_to_call, headers, files )
    response = requests.post(url_to_call, headers=headers, files=files  ) 

    print("result = %s", response.text)
                
    if response.status_code == 200:
        response        = json.loads(response.content)
        if response['success']:
            print("replace_user_avatar avatar ok.")
    else:
        print("problem in replace_user_avatar: status code: %s", response.status_code)
        if response.content:
            response_json        = json.loads(response.content)
            print("response : %s", response_json)

test_user_id = 2020

replace_user_avatar(test_user_id, avatar_url )

Or you can just downloaded avatar write somewhere (in /tmp directory, for example), open file in "read-binary" mode and received file handle give to requests as "file content".
 
Upvote 0 Downvote
Kruzya said:
Note: in documentation example developers used result of executing open() function. In extended documentation, developers noticed on requirement pass "file-like" object to this array. You just pass already fully read content.
Try something like this. I don't write code on Python, but judging by the documentation and requests internal code, this can work:
Python: 
headers             = {     'Content-Type'     : 'multipart/form-data',
                            'XF-Api-User'      : '1',
                            'XF-Api-Key'       : MY_API_KEY }

avatar_url = 'https://www.indiegalacdn.com/imgs/users/1074019/avatar/1588699740.png'

def replace_user_avatar( user_id, avatar ):
 
    url_to_call             = FORUM_URL +  "/api/users/" + str(user_id) + "/avatar"

    #read raw file here
    response = requests.get(avatar, stream=True)
    #guess mime type
    mime = MimeTypes()
    mime_type = mime.guess_type(avatar)
    #this does not work
    #data_to_send = {'avatar' : response.raw }
    #this neither
    files = {'avatar': ('avatar_name', response.raw.fileno(), mime_type ) }
           
    print("calling url: %s, with headers: %s posting data = %s", url_to_call, headers, files )
    response = requests.post(url_to_call, headers=headers, files=files  )

    print("result = %s", response.text)
               
    if response.status_code == 200:
        response        = json.loads(response.content)
        if response['success']:
            print("replace_user_avatar avatar ok.")
    else:
        print("problem in replace_user_avatar: status code: %s", response.status_code)
        if response.content:
            response_json        = json.loads(response.content)
            print("response : %s", response_json)

test_user_id = 2020

replace_user_avatar(test_user_id, avatar_url )

Or you can just downloaded avatar write somewhere (in /tmp directory, for example), open file in "read-binary" mode and received file handle give to requests as "file content".
Click to expand...

Unfortunately it does not work that way, either
(if i put files in data request parameter i get success but not working, if i put files in 'files' param i get an error - 'long' does not have buffer interface ).


Also, following explicitly requests documentation and sending a file this way, from disk:

Python: 
files = {'avatar': open(FILE_ON_DISK, 'rb')}

response = requests.post(url_to_call, headers=headers, files=files )

lends to success, but no change in avatar.


I think the API is bugged at this point, or at least is impossible to make that REST api call with python.
But i could not make it neither with reqbin or other online tools.
I mean, i got "success" : "True" reply, yes, but nothing happened.

IF someone of the xenforo dev team is reading this, you may want to look into that api call:
 
Upvote 0 Downvote
developr said:
Try and error... now here is the solution.

PHP: 
function apiattach($action,$scope,$post) {
     $headers = array(
        'XF-Api-User: 1',
        'XF-Api-Key: '.APIKEY
     );
     $url = 'https://127.0.0.1/api'.$scope;
     $ch = curl_init();
     $headers = array(
        'Content-type: multipart/form-data',
        'XF-Api-User: 1',
        'XF-Api-Key: '.APIKEY
     );
     $file = $post['avatarurl'];
     $mime = mime_content_type($file);
     $info = pathinfo($file);
     $name = $info['basename'];
     $file = new CURLFile($file, $mime, $name);
     $post['avatar'] = $file;
     curl_setopt($ch, CURLOPT_HTTPHEADER, $headers);
     curl_setopt($ch, CURLOPT_URL, $url);
     curl_setopt($ch, CURLOPT_POSTFIELDS,$post);
     curl_setopt($ch, CURLOPT_CUSTOMREQUEST,$action);
     curl_setopt($ch, CURLOPT_RETURNTRANSFER, true);
     $json = curl_exec($ch);
     curl_close($ch);
     return json_decode($json);
}
Click to expand...

Hi @developr

Can you just briefly summarize how this script works.

I mean, Is this meant for more than one user at a time? Does it read a file with the user info first? Are the Avatars in a separate folder?

I'm not that fluent in php yet.

Thanks.
 
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