dz1984/gae_main.py

## gae_main.py
#coding: utf8
import wsgiref.handlers;

from sgmllib import SGMLParser;
from google.appengine.ext import db;
from google.appengine.ext import webapp;
from google.appengine.api import users;
from google.appengine.api import urlfetch;

class Files(db.Model):
   name     = db.StringProperty();
   content = db.BlobProperty();
   encode     = db.BooleanProperty();
   pass;

class MainPage(webapp.RequestHandler):
   def post(self):
       urls = self.request.get('urls');
       encode = self.request.get('encode');
       if urls:
           response = urlfetch.fetch(urls,method=urlfetch.GET);
           if response.status_code == 200:
               files = Files();
               files.name = urls.split('/').pop() or 'None';
               if encode:
                   exchange = (lambda x: chr((lambda h:(ord(h)%16)*16)(x)+(lambda l:(ord(l)/16))(x)));
                   files.content = db.Blob(''.join([exchange(i) for i in response.content]));
                   files.encode = True;
               else:
                   files.content = db.Blob(response.content);
                   files.encode = False;
               files.put();
               pass;
           self.redirect('/');
           pass;

   def get(self):
       results = db.GqlQuery("SELECT * FROM Files");
       context = [];
       filesize =0;
       strencode = (lambda b:(b) and '<font color="red">-Encode</font>' or '');
       for result in results:
           filesize += len(result.content);
           context.append("""
           <li><a href="/down?id=%s">%s</a>%s
           <font size="2">(%d bytes) <a href="/clear?id=%s">Clear</a></font></li>

       """ % (result.key(),result.name,strencode(result.encode),len(result.content),result.key()));
       self.response.headers['Content-Type'] = 'text/html;charset=utf-8';
       self.response.out.write(u"""
           <html>
               <head>
                   <title>跳板下載</title>
                   <style type=text/css>
                       #per {
                           text-indent: 2em;
                       }
                   </style>
               </head>
               <body>
                   <h1>為什麼會想寫跳板下載呢？那跳板下載又是什麼東西呢？</h1>
                   <p id='per'>主要原因是有次我想為Firefox找個好擴充套件，找了很久後，終於讓我物色到功能強大的套件，正興高采烈地下載，就到緊要關頭時，<b>公司的防火牆</b>跳出來擋了下來，沒轍~~~~</p>
                   <p>所以，決定利用Byte的高低位元互換，來躲過<b>公司的防火牆</b>嚴密地監控，最後，還是<b><i>Google</i></b>大顯神通，救了在下…<sub>Ending</sub></p>
                   <h3>輸入下載檔案的URL:</h3>
                   <form method='post' action='/'>
                       <input type='text' name='urls' size='100'>
                       <input type='checkbox' name='encode'>Encode
                       <input type='submit' value='Catch'>
                   </form>
                   <h3>已抓取檔案：</h3>
                   <ul>%s</ul>
                   <h2>Download files : %d</h2>
                   <b>Total files size: %d bytes</b>

                   <a href='/clear'>Clear All Data</a>
               </body>
           </html>
       """ %("".join(context),results.count(),filesize));
       pass;
   pass;

class ClearData(webapp.RequestHandler):
   def get(self):
       user = users.get_current_user();
       if user:
           if users.is_current_user_admin():
               fid = self.request.get('id');
               if fid:
                   db.delete(db.get(fid));
               else:
                   results = db.GqlQuery("SELECT * FROM Files");
                   for result in results:
                       db.delete(result);
                       pass;
                   pass;
               self.redirect('/');
           else:
               self.response.headers['Content-Type'] = 'text/html';
               self.response.out.write("""
                   <html>
                       <head><title>Error</title></head>
                       <body>
                           <h2>%s</h2>
                           <font color='red'>You aren\'t Administrator.</font><a href="/">Back</a>
                           <p><a href='%s'>Logout</a></p>
               """% (user.nickname(),users.create_logout_url('/')));
       else:
           self.redirect(users.create_login_url(self.request.uri));
           pass;
   pass;

class DownloadData(webapp.RequestHandler):
   def get(self):
       fid = self.request.get('id');
       if fid:
           files = db.get(fid);
           mine = 'application/'+ files.name.split('.').pop();
           disposition = 'filename=%s' % files.name;
           self.response.headers['Content-Type'] = str(mine);
           self.response.headers['Content-Disposition'] = str(disposition);
           self.response.out.write(files.content);
           pass;
       else:
           self.response.out.write('No file');
       pass;

def main():
   application = webapp.WSGIApplication([('/',MainPage),('/down',DownloadData),('/clear',ClearData)],debug=True);
   wsgiref.handlers.CGIHandler().run(application);
   pass;

if __name__ == '__main__':
   main();
	#coding: utf8
	import wsgiref.handlers;

	from sgmllib import SGMLParser;
	from google.appengine.ext import db;
	from google.appengine.ext import webapp;
	from google.appengine.api import users;
	from google.appengine.api import urlfetch;

	class Files(db.Model):
	name = db.StringProperty();
	content = db.BlobProperty();
	encode = db.BooleanProperty();
	pass;

	class MainPage(webapp.RequestHandler):
	def post(self):
	urls = self.request.get('urls');
	encode = self.request.get('encode');
	if urls:
	response = urlfetch.fetch(urls,method=urlfetch.GET);
	if response.status_code == 200:
	files = Files();
	files.name = urls.split('/').pop() or 'None';
	if encode:
	exchange = (lambda x: chr((lambda h:(ord(h)%16)*16)(x)+(lambda l:(ord(l)/16))(x)));
	files.content = db.Blob(''.join([exchange(i) for i in response.content]));
	files.encode = True;
	else:
	files.content = db.Blob(response.content);
	files.encode = False;
	files.put();
	pass;
	self.redirect('/');
	pass;

	def get(self):
	results = db.GqlQuery("SELECT * FROM Files");
	context = [];
	filesize =0;
	strencode = (lambda b:(b) and '<font color="red">-Encode</font>' or '');
	for result in results:
	filesize += len(result.content);
	context.append("""
	<li><a href="/down?id=%s">%s</a>%s
	<font size="2">(%d bytes) <a href="/clear?id=%s">Clear</a></font></li>

	""" % (result.key(),result.name,strencode(result.encode),len(result.content),result.key()));
	self.response.headers['Content-Type'] = 'text/html;charset=utf-8';
	self.response.out.write(u"""
	<html>
	<head>
	<title>跳板下載</title>
	<style type=text/css>
	#per {
	text-indent: 2em;
	}
	</style>
	</head>
	<body>
	<h1>為什麼會想寫跳板下載呢？那跳板下載又是什麼東西呢？</h1>
	<p id='per'>主要原因是有次我想為Firefox找個好擴充套件，找了很久後，終於讓我物色到功能強大的套件，正興高采烈地下載，就到緊要關頭時，<b>公司的防火牆</b>跳出來擋了下來，沒轍~~~~</p>
	<p>所以，決定利用Byte的高低位元互換，來躲過<b>公司的防火牆</b>嚴密地監控，最後，還是<b><i>Google</i></b>大顯神通，救了在下…<sub>Ending</sub></p>
	<h3>輸入下載檔案的URL:</h3>
	<form method='post' action='/'>
	<input type='text' name='urls' size='100'>
	<input type='checkbox' name='encode'>Encode
	<input type='submit' value='Catch'>
	</form>
	<h3>已抓取檔案：</h3>
	<ul>%s</ul>
	<h2>Download files : %d</h2>
	<b>Total files size: %d bytes</b>

	<a href='/clear'>Clear All Data</a>
	</body>
	</html>
	""" %("".join(context),results.count(),filesize));
	pass;
	pass;

	class ClearData(webapp.RequestHandler):
	def get(self):
	user = users.get_current_user();
	if user:
	if users.is_current_user_admin():
	fid = self.request.get('id');
	if fid:
	db.delete(db.get(fid));
	else:
	results = db.GqlQuery("SELECT * FROM Files");
	for result in results:
	db.delete(result);
	pass;
	pass;
	self.redirect('/');
	else:
	self.response.headers['Content-Type'] = 'text/html';
	self.response.out.write("""
	<html>
	<head><title>Error</title></head>
	<body>
	<h2>%s</h2>
	<font color='red'>You aren\'t Administrator.</font><a href="/">Back</a>
	<p><a href='%s'>Logout</a></p>
	"""% (user.nickname(),users.create_logout_url('/')));
	else:
	self.redirect(users.create_login_url(self.request.uri));
	pass;
	pass;

	class DownloadData(webapp.RequestHandler):
	def get(self):
	fid = self.request.get('id');
	if fid:
	files = db.get(fid);
	mine = 'application/'+ files.name.split('.').pop();
	disposition = 'filename=%s' % files.name;
	self.response.headers['Content-Type'] = str(mine);
	self.response.headers['Content-Disposition'] = str(disposition);
	self.response.out.write(files.content);
	pass;
	else:
	self.response.out.write('No file');
	pass;

	def main():
	application = webapp.WSGIApplication([('/',MainPage),('/down',DownloadData),('/clear',ClearData)],debug=True);
	wsgiref.handlers.CGIHandler().run(application);
	pass;

	if __name__ == '__main__':
	main();