Robohash/webfront.py
2011-07-06 01:41:06 -04:00

149 lines
4.8 KiB
Python
Executable File

#!/usr/bin/env python
#
# Copyright 2011 Pluric
import tornado.httpserver
import tornado.ioloop
import tornado.options
import tornado.web
import tornado.escape
import socket
import re
import robohash
import os
import pprint
import Image
import hashlib
import urllib
import random
try:
from hashlib import md5 as md5_func
except ImportError:
from md5 import new as md5_func
class Robohash(object):
def __init__(self,string):
hash = hashlib.sha512()
hash.update(string)
self.hexdigest = hash.hexdigest()
self.hasharray = []
self.iter = 1
def createHashes(self,count):
#Create and store a series of hash-values
#Basically, split up a hash (SHA/md5/etc) into X parts
for i in range(0,count):
#Get 1/numblocks of the hash
blocksize = (len(self.hexdigest) / count)
currentstart = (1 + i) * blocksize - blocksize
currentend = (1 +i) * blocksize
self.hasharray.append(int(self.hexdigest[currentstart:currentend],16))
def dirCount(self,path):
#return the count of just the directories beneath me.
return sum([len(dirs) for (root, dirs, files) in os.walk(path)])
def getHashList(self,path):
#Each iteration, if we hit a directory, recurse
#If not, choose the appropriate file, given the hashes, stored above
completelist = []
locallist = []
for ls in os.listdir(path):
if not ls.startswith("."):
if os.path.isdir(path + "/" + ls):
subfiles = self.getHashList(path + "/" + ls)
if subfiles is not None:
completelist = completelist + subfiles
else:
locallist.append( path + "/" + ls)
if len(locallist) > 0:
elementchoice = self.hasharray[self.iter] % len(locallist)
luckyelement = locallist[elementchoice]
locallist = []
locallist.append(luckyelement)
self.iter += 1
completelist = completelist + locallist
return completelist
class MainHandler(tornado.web.RequestHandler):
def get(self):
ip = self.request.remote_ip
self.write(self.render_string('templates/root.html',ip=ip))
class ImgHandler(tornado.web.RequestHandler):
def get(self,string=None):
colors = ['blue','brown','green','grey','orange','pink','purple','red','white','yellow']
sets = ['set1','set2','set3']
self.content_type = 'application/json'
#Create a hash for the string as given
if string is None:
string = self.request.remote_ip
string = urllib.quote_plus(string)
r = Robohash(string)
#Create 10 hashes. This should be long enough for the current crop of variables.
#This is probably not insecure, sicne we'd be modding anyway. This just spreads it out more.
r.createHashes(10)
#Now, customize the request if possible.
client_color = ""
if "color" in self.request.arguments:
if self.get_argument("color") in colors:
client_set = tornado.escape.xhtml_escape(self.get_argument("color"))
#If they don't specify a color, use hashvalue
if client_color == "":
client_set = colors[r.hasharray[0] % len(colors) ]
if "set" in self.request.arguments:
if self.get_argument("set") in sets:
client_set = tornado.escape.xhtml_escape(self.get_argument("set"))
#Set one is distributed
if client_set == 'set1':
client_set = colors[r.hasharray[0] % len(colors) ]
#Change to a usuable format
if string.endswith(('.png','.gif','.jpg','bmp','im','jpeg','pcx','ppm','tiff','xbm')):
ext = string[string.rfind('.') +1 :len(string)]
if ext == '.jpg':
ext = '.jpeg'
else:
ext = "png"
self.set_header("Content-Type", "image/" + ext)
hashlist = r.getHashList(client_set)
hashlist.sort()
robohash = Image.open(hashlist[0])
for png in hashlist:
img = Image.open(png)
robohash.paste(img,(0,0),img)
if ext == 'bmp':
#Flatten bmps
r, g, b, a = robohash.split()
robohash = Image.merge("RGB", (r, g, b))
robohash.save(self,format=ext)
application = tornado.web.Application([
(r"/static/(.*)", tornado.web.StaticFileHandler, {"path": os.path.join(os.path.dirname(__file__),
"static/")}),
(r"/", MainHandler),
(r"/(.*)", ImgHandler),
])
if __name__ == "__main__":
application.listen(8080)
tornado.ioloop.IOLoop.instance().start()