102 lines
4.6 KiB
Python
102 lines
4.6 KiB
Python
#!/usr/bin/env python3
|
|
"""
|
|
imgupload.py
|
|
|
|
Flask application for processing images uploaded through POST requests.
|
|
"""
|
|
from flask import Flask, request, jsonify, Response
|
|
from flask_api import status
|
|
from pathlib import Path
|
|
import os
|
|
import datetime
|
|
|
|
import settings # app settings (such as allowed extensions)
|
|
import functions # custom functions
|
|
|
|
app = Flask(__name__) # app is the app
|
|
|
|
|
|
def allowed_extension(testext):
|
|
if testext in settings.ALLOWED_EXTENSIONS:
|
|
return True
|
|
else:
|
|
return False
|
|
|
|
|
|
def log_savelog(key, ip, savedname):
|
|
if settings.SAVELOG_KEYPREFIX > 0:
|
|
with open(settings.SAVELOG, "a+") as slogf:
|
|
slogf.write("[{0}] {1}: {2} - {3}\n".format(datetime.datetime.now(), key[:settings.SAVELOG_KEYPREFIX], ip, savedname))
|
|
os.chmod(settings.SAVELOG, settings.SAVELOG_CHMOD)
|
|
else:
|
|
with open(settings.SAVELOG, "a+") as slogf:
|
|
slogf.write("[{0}] {1} - {2}\n".format(datetime.datetime.now(), ip, savedname))
|
|
os.chmod(settings.SAVELOG, settings.SAVELOG_CHMOD)
|
|
|
|
@app.route("/upload", methods = ["POST"])
|
|
def upload():
|
|
if request.method == "POST": # sanity check: make sure it's a POST request
|
|
print("Request method was POST!")
|
|
|
|
with open("uploadkeys", "r") as keyfile: # load valid keys
|
|
validkeys = keyfile.readlines()
|
|
validkeys = [x.strip("\n") for x in validkeys]
|
|
while "" in validkeys:
|
|
validkeys.remove("")
|
|
print("Loaded validkeys")
|
|
|
|
if "uploadKey" in request.form: # if an uploadKey was provided
|
|
if request.form["uploadKey"] in validkeys: # check if uploadKey is valid
|
|
print("Key is valid!")
|
|
|
|
if "imageUpload" in request.files: # check if image to upload was provided
|
|
f = request.files["imageUpload"] # f is the image to upload
|
|
else:
|
|
print("No image upload was found!")
|
|
return jsonify({'status': 'error', 'error': 'NO_IMAGE_UPLOADED'}), status.HTTP_400_BAD_REQUEST
|
|
|
|
if f.filename == "": # make sure the filename isn't blank
|
|
print("Filename is blank")
|
|
return jsonify({'status': 'error', 'error': 'FILENAME_BLANK'}), status.HTTP_400_BAD_REQUEST
|
|
|
|
fext = Path(f.filename).suffix # get the uploaded extension
|
|
if allowed_extension(fext): # if the extension is allowed
|
|
print("Generating file with extension {0}".format(fext))
|
|
fname = functions.generate_name() + fext # generate file name
|
|
print("Generated name: {0}".format(fname))
|
|
|
|
if f: # if the uploaded image exists
|
|
print("Uploaded image exists")
|
|
f.save(os.path.join(settings.UPLOAD_FOLDER, fname)) # save the image
|
|
print("Saved to {0}".format(fname))
|
|
url = settings.ROOTURL + fname # construct the url to the image
|
|
if settings.SAVELOG != "/dev/null":
|
|
print("Saving to savelog")
|
|
log_savelog(request.form["uploadKey"], request.remote_addr, fname)
|
|
print("Returning json response")
|
|
return jsonify({'status': 'success', 'url': url, 'name': fname, 'uploadedName': f.filename}), status.HTTP_201_CREATED
|
|
else: # this shouldn't happen
|
|
print("Um... uploaded image... is nonexistent? Please report this error!")
|
|
return jsonify({'status': 'error', 'error': 'UPLOADED_IMAGE_FAILED_SANITY_CHECK_1'}), status.HTTP_400_BAD_REQUEST
|
|
|
|
else: # if the extension was invalid
|
|
print("Uploaded extension is invalid!")
|
|
return jsonify({'status': 'error', 'error': 'INVALID_EXTENSION'}), status.HTTP_415_UNSUPPORTED_MEDIA_TYPE
|
|
|
|
else: # if the key was not valid
|
|
print("Key is invalid!")
|
|
print("Request key: {0}".format(request.form["uploadKey"]))
|
|
return jsonify({'status': 'error', 'error': 'UNAUTHORIZED'}), status.HTTP_401_UNAUTHORIZED
|
|
|
|
else: # if uploadKey was not found in request body
|
|
print("No uploadKey found in request!")
|
|
return jsonify({'status': 'error', 'error': 'UNAUTHORIZED'}), status.HTTP_401_UNAUTHORIZED
|
|
|
|
|
|
else: # if the request method wasn't post
|
|
print("Request method was not POST!")
|
|
return jsonify({'status': 'error', 'error': 'METHOD_NOT_ALLOWED'}), status.HTTP_405_METHOD_NOT_ALLOWED
|
|
|
|
if __name__ == "__main__":
|
|
print("Run with `flask` or a WSGI server!")
|