404-intelligent-service/service.py

#!/usr/bin/env python3
# -*- encoding: utf-8 -*-
from urllib.parse import urlencode

from flask import Flask, request, render_template

#from url_titles import urls
from links_json import urls
from url_util import encode_url_without_last_slash

# set the project root directory as the static folder, you can set others.
application = Flask(__name__, static_url_path='/static')

# to find hyperlink title for the URL, and provide search link to Google/Baidu

@application.route("/favicon.ico")
def favicon():
    return "";


@application.route("/robot.txt")
def robot():
    return "";

#Catch-All function which serves every URL including / is to chain two route filters.
#One for the root path '/' and one including a path placeholder for the rest.
@application.route('/', defaults={'path': ''})
@application.route('/<path:path>')
def root(path):
    #print("base url: %s" % request.base_url)
    #print("relative path:%s" % request.path)
    print("url: %s" % request.url)

    if request.url in urls:
        title = urls[request.url]
        return render_template('find_in_search_engine.html', title=title, url_root=request.url_root)
    elif request.url.endswith('/') and request.url[0:-1] in urls:
        title = urls[request.url[0:-1]]
        return render_template('find_in_search_engine.html', title=title, url_root=request.url_root)
    else:
        lower_url, upper_url = encode_url_without_last_slash(request.url)
        url = lower_url if lower_url in urls else upper_url
        if url in urls:
            return render_template('find_in_search_engine.html', title=urls[url], url_root=request.url_root)

    return render_template('404.html')

if __name__ == "__main__":
    application.run()