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#!/usr/bin/python2.7
import sys
import os
from pb.config import *
import pb.lib.utils as utils
#FIXME these guys can do stuff wider than 1000
LIKE_A_BOSS = "ryz pepper seamonkey JAMES".split(" ")
DEFAULT_FINALFORMAT = "gif"
DEFAULT_TAG = "im";
GRAVITY_PARAMS = ["NorthWest","North","NorthEast","West","Center","East","SouthWest","South","SouthEast"]
GRAVITY_DEFAULT = "Center"
FORMAT_PARAMS = ["jpg", "gif", "png"]
COMPOSE_PARAMS = [ "Over", "ATop", "Dst_Over", "Dst_In", "Dst_Out", "Multiply",
"Screen", "Divide", "Plus", "Difference", "Exclusion",
"Lighten", "Darken", "Overlay", "Hard_Light", "Soft_Light",
"Linear_Dodge", "Linear_Burn", "Color_Dodge", "Color_Burn" ]
DISPOSE_PARAMS = ["None","Previous","Background"]
DISPOSE_DEFAULT = "None"
def debuglog(s):
sys.stderr.write(str(s) + "\n");
class Generate():
def __init__(self, **kwargs):
self.params = {}
self.now = utils.now()
self.files_created = []
self.commands = [];
self._required_keys = [
#{{{ required_keys
#IMAGES
"url",
"background",
#BOOLS
"coalesce",
"dispose",
"nearest",
"merge_early",
"flip",
"flop",
"tile",
"transparent",
#COLORS
"black",
"white",
"subtract",
#INTS
"fuzz",
"width",
"height",
"brightness",
"contrast",
"saturation",
"rotate",
"hue",
#ENUMS
"compose",
"gravity",
"format",
#STRINGS
"username",
"callback",
#}}}
]
for k in self._required_keys:
if k in kwargs:
if k in [ 'url', 'background' ] and kwargs[k] != "" and kwargs[k] != None:
self.params[k] = {
'url' : kwargs[k],
'filename' : self._make_tempname(k),
'path' : os.path.join(WORKING_DIR, self._make_tempname(k)) ,
}
try:
utils.download(self.params[k]['url'], self.params[k]['path'])
self.files_created.append(self.params[k]['path'])
self.params[k]['mimetype'] = utils.get_mimetype(self.params[k]['path'])
except Exception as e:
sys.stderr.write(str(e))
raise Exception ("BAD PARAMS");
elif k in [ 'black', 'white', 'subtract' ]:
try:
self.params[k] = utils.is_color(kwargs[k])
except Exception:
raise Exception("Unable to process color for:\n{}".format(k))
elif k in [
"coalesce", "dispose", "nearest", "merge_early",
"flip", "flop", "tile", "transparent",
]:
self.params[k] = utils.bool_correct(utils.sanitize(kwargs[k]))
elif k == 'gravity' and self._test_enum(kwargs[k], GRAVITY_PARAMS):
self.params[k] = kwargs[k]
elif k == 'format' and self._test_enum(kwargs[k], FORMAT_PARAMS):
self.params[k] = kwargs[k]
elif k == 'compose' and self._test_enum(kwargs[k], COMPOSE_PARAMS):
self.params[k] = kwargs[k]
elif k == 'dispose' and self._test_enum(kwargs[k], DISPOSE_PARAMS):
self.params[k] = kwargs[k]
elif k in [ "fuzz", "width", "height", "brightness", "contrast", "saturation", "rotate", "hue" ]:
if kwargs[k] == '':
self.params[k] = None
else:
try:
self.params[k] = str(int(kwargs[k]))
except Exception as e:
raise Exception("Problem with param {}:\n".format(k) + str(e))
else:
self.params[k] = utils.sanitize(kwargs[k])
if self.params.get('background'):
self.tag = self.params.get('compose')
else:
self.tag = self.params.get('transparent', DEFAULT_TAG)
self.basename = self._get_filename();
self.filename = "{}.{}".format(self.basename, self.params.get('format', DEFAULT_FINALFORMAT))
self.filepath = os.path.join(WORKING_DIR, self.filename)
def _make_tempname(self, s):
return "PBTMP{}{}".format(self.now, s);
def _test_enum(self, e, arr):
if e in arr: return True
raise Exception ("Bad value: {}".format(e))
def _get_filename(self):
return "{}_{}_{}".format(
self.tag,
self.now,
self.params.get('username',"")
);
def _call_cmd(self, cmd):
try:
utils.call_cmd(cmd)
self.commands.append(" ".join(cmd));
except Exception:
raise Exception("Unable to call cmd {}".format(str(cmd)))
def _cleanup(self):
if not len(self.files_created):
pass
cmd = ["rm", "-f"] + self.files_created
self._call_cmd(cmd)
def _composite (self):
cmd = [
BIN_CONVERT, self.params['background']['path'],
"null:", self.filepath, "-matte",
"-dispose", self.params.get('dispose', DISPOSE_DEFAULT),
"-gravity", self.params.get("gravity",GRAVITY_DEFAULT),
"-compose", self.params['compose'], "-layers", "composite",
self.filepath ]
self._call_cmd(cmd);
def _convert(self):
cmd = [BIN_CONVERT, self.params['url']['path'] ]
if self.params.get('rotate'): cmd += ["-rotate", self.params['rotate'] ]
if self.params.get('flip'): cmd += ["-flip"]
if self.params.get('flop'): cmd += ["-flop"]
if self.params.get('transparent'):
if self.params.get('fuzz'):
cmd += ["-fuzz", "{}%".format(self.params['fuzz']) ]
cmd += [ "-transparent", self.params.get('subtract', "white") ]
if self.params.get('width') or self.params.get('height'):
if self.params.get('nearest') and self.params.get('format') == "gif":
cmd += [ "-coalesce","+map","-interpolate","Nearest","-interpolative-resize" ]
else:
cmd.append("-resize")
cmd += [ "{}x{}".format(self.params.get('width',"") or "", self.params.get('height',"") or "") ]
if self.params.get('black') != "black" or self.params.get('white') != 'white':
cmd += [ "+level-colors" , "{},{}".format(self.params.get('black','black'), self.params.get('white', 'white')) ]
if self.params.get('contrast'): cmd += [ '-contrast-stretch', self.params['contrast'] ]
if any( e in self.params.keys() for e in ['brightness', 'saturation', 'hue' ]):
cmd += [
"-modulate", "{},{},{}".format(
(self.params.get('brightness', 100) or 100),
(self.params.get('contrast', 100) or 100),
(self.params.get('hue', 100) or 100)
)]
cmd.append("-coalesce"); #why? #FIXME
cmd += [ self.filepath ];
self._call_cmd(cmd);
def create(self):
self._convert()
if self.params.get('background'):
self._composite()
self._cleanup();
if __name__ == "__main__":
TEST_PARAMS = {
'nearest': 'true',
# 'height': None,
'compose': 'Soft_Light',
'coalesce': 'true',
'dispose': 'None',
'gravity': 'Center',
'width': '200',
'black': 'black',
'tile': 'true',
'white': 'white',
'contrast': '100',
'hue': '90',
'saturation': '100',
'merge_early': 'true',
'format': 'gif',
'background': 'http://i.asdf.us/im/bc/new_1430440747.gif',
'subtract': '#EE7AE9',
'transparent': 'true',
# 'rotate': None,
'name': 'yo',
# 'brightness': None,
'url': 'http://asdf.us/im/new.gif',
'flop': 'true',
'flip': 'false',
'callback': 'jsonp1430442384162',
'fuzz': '5'
}
g = Generate(**TEST_PARAMS);
g.create()
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