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from faker.providers import BaseProvider |
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from random import randint, sample |
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import urllib.request |
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import urllib.parse |
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import tempfile |
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import os |
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import string |
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class RandImgProvider(BaseProvider): |
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""" |
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The class RandImgProvider contains all the logic for generate random |
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image urls and also for download it. |
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""" |
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base_url = 'http://www.rand-img.com' |
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def image_url(self, width=720, height=480, category='', **kwargs): |
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""" |
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Generate a random image url. |
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:param width: int |
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:param height: int |
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:param category: string |
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:param kwargs: Optional list of parameters for the image. |
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:return: a string containing the full url |
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""" |
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started_query = False |
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url = self.base_url |
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url += "/%d/%d" % (width, height, ) |
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if len(category) > 0: |
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url += "/%s" % category |
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if len(kwargs) > 0: |
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if kwargs.get('rand', False): |
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kwargs['rand'] = randint(1, 1000000) |
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return url + '?' + urllib.parse.urlencode(kwargs) |
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return url |
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def squared_image_url(self, width=720, category='', **kwargs): |
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""" |
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Helper method that generate a squared image url. |
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:param width: the width (and height) of the image |
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:param category: string |
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:param kwargs: Optional list of parameters for the image. |
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:return: a string containing the full url |
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""" |
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return self.image_url(width, width, category, **kwargs) |
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def gif_url(self, rand=False): |
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""" |
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Generate a random gif url. It can attach |
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a random number to avoid that multiple gifs loaded |
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in the page will be all the same gif. |
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:param rand: bool if True then a random number will be attached to the URL. |
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:return: |
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""" |
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url = '%s/gif' % self.base_url |
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if rand: |
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url += '?rand=%d' % randint(1, 1000000) |
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return url |
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def image(self, dir=None, filename=None, width=720, height=480, category='', **kwargs): |
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""" |
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Downloads an image to the specified directory. |
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:param filename: the file name with the extension ('example.png'). If None |
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random name will be generated |
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:param dir: the directory where to be placed the image |
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:param width: the width of the image |
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:param height: the height of the image |
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:param category: string with the category name |
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:param kwargs: |
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:return: |
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""" |
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url = self.image_url(width, height, category, **kwargs) |
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if dir is None: |
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dir = tempfile.gettempdir() |
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if filename is None: |
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base62_chars = string.ascii_letters + string.digits |
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filename = ''.join(sample(base62_chars, len(base62_chars))) + '.jpg' |
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full_path = os.path.join(dir, filename) |
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file = open(full_path, 'wb') |
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req = urllib.request.Request(url) |
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req_handler = urllib.request.urlopen(req) |
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file.write(req_handler.read()) |
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file.close() |
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return full_path |
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def gif(self, dir=None, filename=None): |
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""" |
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Downloads a gif to the specified directory. |
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:param dir: the directory to store the gif. Default to None means |
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that takes the default OS temporary directory. |
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:param filename: the name to store the gif. Default to None means |
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that takes a random name. |
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:return: string with the full path name |
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""" |
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url = self.gif_url() |
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if dir is None: |
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dir = tempfile.gettempdir() |
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if filename is None: |
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base62_chars = string.ascii_letters + string.digits |
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filename = ''.join(sample(base62_chars, len(base62_chars))) + '.gif' |
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full_path = os.path.join(dir, filename) |
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file = open(full_path, 'wb') |
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req = urllib.request.Request(url) |
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req_handler = urllib.request.urlopen(req) |
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file.write(req_handler.read()) |
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file.close() |
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return full_path |
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SiroDiaz /
pyrandimg
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The coding style of this project requires that you add a docstring to this code element. Below, you find an example for methods:
If you would like to know more about docstrings, we recommend to read PEP-257: Docstring Conventions.