Added files (v0.1)
Added the Python files so now the repository actually has something. This will probably become v0.1 without any changes.
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139
configtest.py
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139
configtest.py
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import os
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import settings as settings
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# Default settings
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defaults = {
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"UPLOAD_FOLDER": "/var/www/img",
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"ALLOWED_EXTENSIONS": [".png", ".jpg", ".jpeg", ".svg", ".bmp", ".gif", ".ico", ".webp"],
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"ROOTURL": "https://img.bbaovanc.com/",
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"SAVELOG": "savelog.log",
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"SAVELOG_CHMOD": "0o644",
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"UPLOADKEYS_CHMOD": "0o400",
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"SAVELOG_KEYPREFIX": 4,
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}
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deftypes = {
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"UPLOAD_FOLDER": str,
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"ALLOWED_EXTENSIONS": list,
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"ROOTURL": str,
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"SAVELOG": str,
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"SAVELOG_CHMOD": int,
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"UPLOADKEYS_CHMOD": int,
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"SAVELOG_KEYPREFIX": int,
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}
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# Check for unset settings
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checksettings = list(defaults.keys())
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unset_settings = [i for i in defaults.keys() if i not in dir(settings)]
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if len(unset_settings) > 0:
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for unset in unset_settings:
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checksettings.remove(unset)
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print("[!] {0} is unset. The default value is type {1} with value {2}".format(unset, deftypes[unset].__name__, defaults[unset]))
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else:
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print("[" + u"\u2713" + "] Found all required settings!")
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# Check if types of settings are correct
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typesgood = True
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typeswrong = []
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for testtype in checksettings:
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if type(getattr(settings, testtype)) is not deftypes[testtype]:
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print("[!] {0} requires {1}, but is {2}".format(testtype, deftypes[testtype].__name__, type(getattr(settings, testtype)).__name__))
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typeswrong.append(testtype)
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typesgood = False
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if typesgood:
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print("[" + u"\u2713" + "] Types are good!")
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# Check if allowed extensions all start with a .
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invalid_exts = []
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if "ALLOWED_EXTENSIONS" in checksettings:
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for e in settings.ALLOWED_EXTENSIONS:
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if not e.startswith("."):
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invalid_exts.append(e)
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if len(invalid_exts) > 0:
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print("[!] The following extensions listed in ALLOWED_EXTENSIONS are invalid:")
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for e in invalid_exts:
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print(" {0} is listed in ALLOWED_EXTENSIONS, but doesn't start with a .".format(e))
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else:
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print("[" + u"\u2713" + "] ALLOWED_EXTENSIONS is good!")
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# Check if UPLOAD_FOLDER exists
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uploadfolder_exists = True
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if "UPLOAD_FOLDER" in checksettings:
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if not os.path.isdir(settings.UPLOAD_FOLDER):
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uploadfolder_exists = False
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print("[!] The directory set in UPLOAD_FOLDER ('{0}') doesn't exist!".format(settings.UPLOAD_FOLDER))
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else:
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print("[" + u"\u2713" + "] UPLOAD_FOLDER exists!")
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# Check if ROOTURL starts with http(s):// and ends with /
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rooturl_good = True
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if "ROOTURL" in checksettings:
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if settings.ROOTURL.startswith("http://") or settings.ROOTURL.startswith("https://"):
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pass
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else:
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rooturl_good = False
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print(settings.ROOTURL)
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print(settings.ROOTURL.startswith("https://"))
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print("[!] ROOTURL does not start with `http://` or `https://`! This may cause issues!")
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if not settings.ROOTURL.endswith("/"):
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rooturl_good = False
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print("[!] ROOTURL does not end with a `/`. This WILL cause issues!")
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if not rooturl_good:
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print(" With your current settings, this is what a generated url would look like:")
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print(" {0}example.png".format(settings.ROOTURL))
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else:
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print("[" + u"\u2713" + "] ROOTURL is good!")
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# Ask the user if SAVELOG is the intended filename
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if "SAVELOG" in checksettings:
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print("[*] SAVELOG was interpreted to be {0}".format(settings.SAVELOG))
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print("[*] If this is not the intended filename, please fix it.")
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# Show summary
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print()
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print("----- SUMMARY -----")
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summarygood = True
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if len(unset_settings) > 0:
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summarygood = False
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print("Unset settings:")
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for unset in unset_settings:
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print(" {0}".format(unset))
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if len(typeswrong) > 0:
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summarygood = False
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print("Incorrect types:")
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for wtype in typeswrong:
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print(" {0}".format(wtype))
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if len(invalid_exts) > 0:
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summarygood = False
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print("Invalid extensions:")
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for wext in invalid_exts:
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print(" '{0}'".format(wext))
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if not uploadfolder_exists:
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summarygood = False
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print("UPLOAD_FOLDER ({0}) does not exist!".format(settings.UPLOAD_FOLDER))
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if not rooturl_good:
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summarygood = False
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print("ROOTURL may cause issues!")
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print("With current settings, this is what a generated URL would look like:")
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print("{0}example.png".format(settings.ROOTURL))
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if "SAVELOG" in checksettings:
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print("[*] SAVELOG is {0}".format(settings.SAVELOG))
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if summarygood:
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print("[" + u"\u2713" + "] This configuration passes all tests!")
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114
imgupload.py
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imgupload.py
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from flask import Flask, request, jsonify, abort, Response
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from flask_api import status
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from pathlib import Path
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import string
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import random
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import os
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import datetime
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import settings # app settings (such as allowed extensions)
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ALPHANUMERIC = string.ascii_letters + string.digits # uppercase, lowercase, and numbers
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app = Flask(__name__) # app is the app
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def allowed_extension(testext):
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if testext in settings.ALLOWED_EXTENSIONS:
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return True
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else:
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return False
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def generate_name(extension):
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namefound = False
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while not namefound:
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fname = ''.join((random.choice(ALPHANUMERIC) for i in range(8))) + str(extension)
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if not Path(fname).is_file():
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namefound = True
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return fname
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def log_savelog(key, ip, savedname):
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if settings.SAVELOG_KEYPREFIX > 0:
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with open(settings.SAVELOG, "a+") as slogf:
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slogf.write("[{0}] {1}: {2} - {3}\n".format(datetime.datetime.now(), key[:settings.SAVELOG_KEYPREFIX], ip, savedname))
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os.chmod(settings.SAVELOG, settings.SAVELOG_CHMOD)
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else:
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with open(settings.SAVELOG, "a+") as slogf:
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slogf.write("[{0}] {1} - {2}\n".format(datetime.datetime.now(), ip, savedname))
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os.chmod(settings.SAVELOG, settings.SAVELOG_CHMOD)
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@app.route("/upload", methods = ["POST"])
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def upload():
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if request.method == "POST": # sanity check: make sure it's a POST request
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print("Request method was POST!")
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os.chmod("uploadkeys", settings.UPLOADKEYS_CHMOD)
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print("Changed permissions of `uploadkeys`")
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with open("uploadkeys", "r") as keyfile: # load valid keys
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validkeys = keyfile.readlines()
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validkeys = [x.strip("\n") for x in validkeys]
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while "" in validkeys:
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validkeys.remove("")
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print("removed blank key")
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print("Valid keys: {0}".format(validkeys))
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print("Loaded validkeys")
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if "uploadKey" in request.form: # if an uploadKey was provided
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if request.form["uploadKey"] in validkeys: # check if uploadKey is valid
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print("Key is valid!")
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if "imageUpload" in request.files: # check if image to upload was provided
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f = request.files["imageUpload"] # f is the image to upload
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print("Found uploaded image")
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else:
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print("No image upload was found!")
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return jsonify({'status': 'error', 'error': 'NO_IMAGE_UPLOADED'}), status.HTTP_400_BAD_REQUEST
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if f.filename == "": # make sure the filename isn't blank
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print("Filename is blank")
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return jsonify({'status': 'error', 'error': 'FILENAME_BLANK'}), status.HTTP_400_BAD_REQUEST
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fext = Path(f.filename).suffix # get the uploaded extension
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print("Uploaded file extensions is {0}".format(fext))
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if allowed_extension(fext): # if the extension is allowed
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fname = generate_name(fext) # generate file name
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print("Generated name: {0}".format(fname))
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if f: # if the uploaded image exists
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print("Uploaded image exists, obviously.")
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f.save(os.path.join(settings.UPLOAD_FOLDER, fname)) # save the image
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print("Saved to {0}".format(fname))
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url = settings.ROOTURL + fname # construct the url to the image
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if settings.SAVELOG != "/dev/null":
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log_savelog(request.form["uploadKey"], request.remote_addr, fname)
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print("Logged message to savelog")
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print("Returning json response")
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return jsonify({'status': 'success', 'url': url, 'name': fname, 'uploadedName': f.filename}), status.HTTP_201_CREATED
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else: # this shouldn't happen
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print("Um... uploaded image is nonexistent..? Please report this error!")
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return jsonify({'status': 'error', 'error': 'UPLOADED_IMAGE_FAILED_SANITY_CHECK_1'}), status.HTTP_400_BAD_REQUEST
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else: # if the extension was invalid
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print("Uploaded extension is invalid!")
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abort(415)
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else: # if the key was not valid
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print("Key is invalid!")
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print("Request key: {0}".format(request.form["uploadKey"]))
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abort(401)
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else: # if uploadKey was not found in request body
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print("No uploadKey found in request!")
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abort(401)
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else: # if the request method wasn't post
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print("Request method was not POST!")
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abort(405)
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if __name__ == "__main__":
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print("Run with `flask` or a WSGI server!")
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7
settings.py
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7
settings.py
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UPLOAD_FOLDER = "/var/www/img"
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ALLOWED_EXTENSIONS = [".png", ".jpg", ".jpeg", ".svg", ".bmp", ".gif", ".ico", ".webp"]
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ROOTURL = "https://img.bbaovanc.com/"
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SAVELOG = "savelog.log"
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SAVELOG_CHMOD = 0o644
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UPLOADKEYS_CHMOD = 0o600
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SAVELOG_KEYPREFIX = 4
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