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| import random
import os
import random
import typing as t
import requests
from PIL.Image import new as createImage, Image, QUAD, BILINEAR
from PIL.ImageDraw import Draw, ImageDraw
from PIL.ImageFilter import SMOOTH
from PIL.ImageFont import FreeTypeFont, truetype
from io import BytesIO
import time
ColorTuple = t.Union[t.Tuple[int, int, int], t.Tuple[int, int, int, int]]
DATA_DIR = os.path.join(os.path.abspath(os.path.dirname(__file__)), 'data')
DEFAULT_FONTS = [os.path.join(DATA_DIR, 'DroidSansMono.ttf')]
class Captcha:
lookup_table: t.List[int] = [int(i * 1.97) for i in range(256)]
def __init__(self, width: int = 160, height: int = 60, key: int = None, length: int = 4,
fonts: t.Optional[t.List[str]] = None, font_sizes: t.Optional[t.Tuple[int]] = None):
self._width = width
self._height = height
self._length = length
tkey=int(time.time())
self._key = (key or tkey) + random.randint(1,100)
self._fonts = fonts or DEFAULT_FONTS
self._font_sizes = font_sizes or (42, 50, 56)
self._truefonts: t.List[FreeTypeFont] = []
random.seed(key)
@property
def truefonts(self) -> t.List[FreeTypeFont]:
if self._truefonts:
return self._truefonts
self._truefonts = [
truetype(n, s)
for n in self._fonts
for s in self._font_sizes
]
return self._truefonts
@staticmethod
def create_noise_curve(image: Image, color: ColorTuple) -> Image:
w, h = image.size
x1 = random.randint(0, int(w / 5))
x2 = random.randint(w - int(w / 5), w)
y1 = random.randint(int(h / 5), h - int(h / 5))
y2 = random.randint(y1, h - int(h / 5))
points = [x1, y1, x2, y2]
end = random.randint(160, 200)
start = random.randint(0, 20)
Draw(image).arc(points, start, end, fill=color)
return image
@staticmethod
def create_noise_dots(image: Image, color: ColorTuple, width: int = 3, number: int = 30) -> Image:
draw = Draw(image)
w, h = image.size
while number:
x1 = random.randint(0, w)
y1 = random.randint(0, h)
draw.line(((x1, y1), (x1 - 1, y1 - 1)), fill=color, width=width)
number -= 1
return image
def _draw_character(self, c: str, draw: ImageDraw, color: ColorTuple) -> Image:
font = random.choice(self.truefonts)
left, top, right, bottom = draw.textbbox((0, 0), c, font=font)
w = int((right - left)*1.7) or 1
h = int((bottom - top)*1.7) or 1
dx1 = random.randint(0, 4)
dy1 = random.randint(0, 6)
im = createImage('RGBA', (w + dx1, h + dy1))
Draw(im).text((dx1, dy1), c, font=font, fill=color)
im = im.crop(im.getbbox())
im = im.rotate(random.uniform(-30, 30), BILINEAR, expand=True)
dx2 = w * random.uniform(0.1, 0.3)
dy2 = h * random.uniform(0.2, 0.3)
x1 = int(random.uniform(-dx2, dx2))
y1 = int(random.uniform(-dy2, dy2))
x2 = int(random.uniform(-dx2, dx2))
y2 = int(random.uniform(-dy2, dy2))
w2 = w + abs(x1) + abs(x2)
h2 = h + abs(y1) + abs(y2)
data = (
x1, y1,
-x1, h2 - y2,
w2 + x2, h2 + y2,
w2 - x2, -y1,
)
im = im.resize((w2, h2))
im = im.transform((w, h), QUAD, data)
return im
def create_captcha_image(self, chars: str, color: ColorTuple, background: ColorTuple) -> Image:
image = createImage('RGB', (self._width, self._height), background)
draw = Draw(image)
images: t.List[Image] = []
for c in chars:
if random.random() > 0.5:
images.append(self._draw_character(" ", draw, color))
images.append(self._draw_character(c, draw, color))
text_width = sum([im.size[0] for im in images])
width = max(text_width, self._width)
image = image.resize((width, self._height))
average = int(text_width / len(chars))
rand = int(0.25 * average)
offset = int(average * 0.1)
for im in images:
w, h = im.size
mask = im.convert('L').point(self.lookup_table)
image.paste(im, (offset, int((self._height - h) / 2)), mask)
offset = offset + w + random.randint(-rand, 0)
if width > self._width:
image = image.resize((self._width, self._height))
return image
def generate_image(self, chars: str) -> Image:
background = random_color(238, 255)
color = random_color(10, 200, random.randint(220, 255))
im = self.create_captcha_image(chars, color, background)
self.create_noise_dots(im, color)
self.create_noise_curve(im, color)
im = im.filter(SMOOTH)
return im
def generate(self, format: str = 'png') -> (BytesIO,str):
code = generate_code(self._length)
im = self.generate_image(code)
out = BytesIO()
im.save(out, format=format)
out.seek(0)
return out, code
def write(self, output: str, format: str = 'png') -> (Image, str):
code = generate_code(self._length)
im = self.generate_image(code)
im.save(output, format=format)
return im, code
def random_color(start: int, end: int, opacity: t.Optional[int] = None) -> ColorTuple:
red = random.randint(start, end)
green = random.randint(start, end)
blue = random.randint(start, end)
if opacity is None:
return (red, green, blue)
return (red, green, blue, opacity)
def generate_code(length: int = 4):
characters = '0123456789ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz'
return ''.join(random.choice(characters) for _ in range(length))
tkey=int(time.time())
print(tkey)
open("1.jpg","wb").write(requests.get("http://124.70.33.170:23001/captcha").content)
trueKey=input()
Cookie="eyJjYXB0Y2hhIjoiVjhTUyIsInVzZXJuYW1lIjoiYWRtaW4ifQ.ZT3VKQ.b53eteLdneEgpLYTiDNTBwka7Cc"
for i in range(0,101):
gen = Captcha(200, 80,tkey+i)
out,captcha_text = gen.generate()
if(trueKey.lower()==captcha_text.lower()):
print(captcha_text)
captcha = generate_code()
print(captcha)
print(requests.post("http://124.70.33.170:23001/vip",json={"captcha":captcha},headers={"Cookie":Cookie}).headers["Set-Cookie"])
|
