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import re
from Config import *
import time
import urllib
import urllib2
import sys
import os
import random
from subprocess import Popen,PIPE,call
from Pb.Params import Params
Request = urllib2.Request
urlencode = urllib.urlencode
urlopen = urllib2.urlopen
class Pb(object):
def __init__(self):
self.params = Params();
self._working_dir = WORKING_DIR
def _call_cmd(self, cmd):
try:
call(cmd)
except Exception as e:
self.err_warn("Could not call cmd: {}".format(str(cmd)))
self.err_warn(str(e))
@staticmethod
def is_color(s):
if s == "":
return "transparent"
if re.match('(rgba?\([0-9]+,[0-9]+,[0-9]+\))|([a-zA-Z]+)|(\#[A-Ha-h0-9]+)', s):
return s.replace(' ', '');
else:
sys.stderr.write("Not a color: {}\n".format(s))
raise ValueError
@staticmethod
def dimensions (filepath):
#works in lieu of a mimetype check (it reads the header as well)
ident = (Popen([BIN_IDENTIFY, filepath], stdout=PIPE).communicate()[0]).split(" ")
return ident[2].split("x")
@staticmethod
def is_number(s):
try:
return int(s)
except (ValueError, TypeError):
return False
def bool_correct(self, s):
try:
if re.match(r'^false$', str(s), re.IGNORECASE):
return False
elif re.match(r'^true$', str(s), re.IGNORECASE):
return True
else:
return s
except Exception as e:
sys.stderr.write("WHAT THE FUCK")
@staticmethod
def get_mimetype(f):
try:
mimetype = Popen(
[BIN_IDENTIFY, f], stdout=PIPE
).communicate()[0].split(" ")[1].lower()
return mimetype
except Exception as e:
sys.stderr.write("couldn't determine mimetype")
sys.stderr.write(str(e))
raise;
def sanitize (self, s):
return re.sub(r'\W+', '', s)
@staticmethod
def now():
return int(time.time())
@staticmethod
def browser_request (url, data=None):
headers = {
'User-Agent': 'Mozilla/4.0 (compatible; MSIE 5.5; Windows NT)',
'Accept': '*/*',
}
try:
req = Request(url, data, headers)
response = urlopen(req)
except IOError, e:
if hasattr(e, 'code'):
sys.stderr.write( '%s - ERROR %s' % (url, e.code) )
raise;
return None
else:
return response
def download(self, url, destination, max_size=MAX_SIZE):
response = self.browser_request(url, None)
rawimg = response.read()
if len(rawimg) == 0:
sys.stderr.write("got zero-length file")
raise;
if len(rawimg) > max_size:
sys.stderr.write("file too big: max size {} KB / {} is {} KB".format(
str(MAX_SIZE/1024),
destination,
str(len(rawimg)/1024)
))
raise;
f = open(destination, "w")
f.write(rawimg)
f.close()
@staticmethod
def file_size (filepath):
try:
return os.stat(filepath)[6]
except Exception as e:
sys.stderr.write("Couldn't determine filesize\n")
sys.stderr.write(str(e)+"\n")
raise;
def gif_frames(self, filepath):
try:
info = Popen([BIN_IDENTIFY,filepath], stdout=PIPE).communicate()[0]
frames = filter((lambda x: x), map(
(lambda x: x.split(" ")[0]),
(info).split('\n')
))
return frames
except Exception as e:
sys.stderr.write("{} couldn't get gif frames".format(self.__class__.__name__))
sys.stderr.write(str(e))
raise;
def tempname_create(self, basename=None, fmt="png"):
if not basename: basename = self.random_string_create()
return os.path.join(self._working_dir, "{}{}.{}".format(self.__class__.__name__, basename, fmt)) # this
def _get_filename_and_type_from_url (self, url):
name = re.sub(r'(?:\s|\?.*|.*/)', '', urllib.unquote(url));
try:
basename, ext = map(lambda s: self.sanitize(s), re.search(r'(^.*)\.(.*$)', name).groups());
except Exception as e:
self.err_warn("Incompatible input file type")
if (len(basename) > 20):
basename = basename[:-20]
return "{}{}_{}_{}".format(self.tag, basename, self._now, self.params.username or ""), ext
def random_string_create(self):
return "{}".format(random.uniform(0, 100000));
def _file_read(self, filepath):
f = open(filepath, 'r');
data = f.read()
f.close()
return data
def err_warn(self, s):
sys.stderr.write("ERROR:{} - {}\n".format(self.__class__.__name__, s))
def err_fatal(self, s):
sys.stderr.write("ERROR[FATAL]:{} - {}\n".format(self.__class__.__name__, s))
sys.exit(1);
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