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app.py
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app.py
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from PIL import Image
import random
import string
import flask
import os
import io
app = flask.Flask(__name__)
app.config["UPLOAD_FOLDER"] = "./"
app.config["ALLOWED_IMG_EXTENSIONS"] = ('.png', '.jpeg', '.jpg', '.svg', '.gif', '.bmp')
def get_filename(ext):
res = []
for i in range(5):
res.append(random.choice(string.ascii_letters))
return ''.join(res) + ext
@app.route("/view/<filename>")
@app.route("/<filename>")
def view(filename):
return flask.render_template("view.html", filename=filename, title=filename)
@app.route("/about")
def about():
return flask.render_template("about.html", title="About plzimg")
@app.route('/', methods=["POST"])
def post_img():
request = flask.request
file = request.files['file']
if not file.filename:
return flask.render_template("error.html", message="Please provide a file", title="Error")
name, ext = os.path.splitext(file.filename)
ext = ext.lower()
if ext not in app.config['ALLOWED_IMG_EXTENSIONS']:
return flask.render_template("error.html", message="Forbidden file extension: %s" % (ext,), title="Error")
filename = get_filename(ext)
data = file.read()
with open(os.path.join(app.config['UPLOAD_FOLDER'], 'o', filename), "wb") as fd:
fd.write(data)
data = io.BytesIO(data)
image = Image.open(data)
max_width, max_height = (500, 500)
width, height = image.size
if width > max_width or height > max_height:
width_ratio = max_width / width
height_ratio = max_height / height
ratio = min(width_ratio, height_ratio)
height = height * ratio
width = width * ratio
try:
image = image.resize((int(width), int(height)))
except Exception as e:
pass
image.save(os.path.join(app.config['UPLOAD_FOLDER'], 's', filename))
return flask.redirect(flask.url_for("view", filename=filename))
@app.route('/', methods=['GET'])
def main():
img = flask.request.args.get("img")
if img:
return flask.redirect(flask.url_for("view", filename=img))
return flask.render_template("index.html", title="Index")
if __name__ == "__main__":
app.run(debug=False)