How to create an image uploader in Bottle (Python)

Bottle To Uploader By.Python

It is for memos, so it is the minimum content.

Various Ver.

• Bottle - Ver.0.13-dev
• Python - Ver.2.7.10

myapp.py

from bottle import route, run, template, request, static_file, url, get, post, response, error, abort, redirect, os
import sys, codecs
import bottle.ext.sqlalchemy
import sqlalchemy
import sqlalchemy.ext.declarative

sys.stdout = codecs.getwriter("utf-8")(sys.stdout)

@route("/")
def html_index():
    return template("index", url=url)

@route("/static/<filepath:path>", name="static_file")
def static(filepath):
    return static_file(filepath, root="./static")

@route("/static/img/<img_filepath:path>", name="static_img")
def static_img(img_filepath):
    return static_img(img_filepath, root="./static/img/")

#File Upload
@get('/upload')
def upload():
    return '''
        <form action="/upload" method="post" enctype="multipart/form-data">
            <input type="submit" value="Upload"></br>
            <input type="file" name="upload"></br>
        </form>
    '''

@route('/upload', method='POST')
def do_upload():
    upload = request.files.get('upload', '')
    if not upload.filename.lower().endswith(('.png', '.jpg', '.jpeg')):
        return 'File extension not allowed!'
    save_path = get_save_path()
    upload.save(save_path)
    return 'Upload OK. FilePath: %s%s' % (save_path, upload.filename)

def get_save_path():
    path_dir = "./static/img/"
    return path_dir

run(host="0.0.0.0", port=8000, debug=True, reloader=True)

...Omitted because the code is not relevant below

Other

I also wanted to allow external connections, so the run host is not "localhost" Described as "0.0.0.0".

It also adds an image file path for the template.

@ Addition (when uploading multiple files)

myapp.py

#No change

#File Upload
@get('/upload')
def upload():
    return '''
        <form action="/upload" method="post" enctype="multipart/form-data">
            <input type="submit" value="Upload"></br>
-           <input type="file" name="upload"></br>
+           <input multiple="multiple" name="upload[image_file_name][]" type="file" accept="image/*" id="upload">
        </form>
    '''

@route('/upload', method='POST')
def do_upload():
-   upload = request.files.get('upload', '')
+   pload_files = request.files.getall('upload[image_file_name][]')

-   if not upload.filename.lower().endswith(('.png', '.jpg', '.jpeg')):
-       return 'File extension not allowed!'
-   save_path = get_save_path()
-   upload.save(save_path)
-   return 'Upload OK. FilePath: %s%s' % (save_path, upload.filename)
+   save_path = get_save_path()
+   for count, uplad_file in enumerate(upload_files):
+       upload_img = uplad_file
+       if not upload_img.filename.lower().endswith(('.png', '.jpg', '.jpeg')):
+           return template("no {{uplad_file}}", uplad_file=uplad_file)
+       upload_img.save(save_path)
+   return 'Upload OK. FilePath: %s ImageFiles:%s' % (save_path, pload_files)

#No change below

The key to the update is the use of ʻenumerate`. By using this, you can add indexed elements and store data.

• The contents of this description do not consider files with the same name. In the actual code, the file with the same name is processed.

Reference

Template reference URL

-Generating static file links with Python's Bottle framework

Image upload reference URL

-Python learned from Bottle

URL that served as a reference for uploading multiple files

-Convenient zip, enumerate function in for loop -enumerate (iterable, start = 0) (official)

The above is a summary of Bottle that I recently referred to. .. ..