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# -*- coding: utf-8 -*- |
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from six import string_types |
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import base64 |
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import errno |
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import json |
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import os |
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import re |
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import requests |
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import xmltodict |
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import toml |
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import yaml |
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try: |
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# python 3 |
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from urllib.parse import unquote |
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from urllib.parse import unquote_plus |
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from urllib.parse import urlencode |
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from urllib.parse import parse_qs |
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except ImportError: |
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# python 2 |
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from urllib import unquote |
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from urllib import unquote_plus |
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from urllib import urlencode |
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from urlparse import parse_qs |
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def decode_base64(s, **kwargs): |
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# fix urlencoded chars |
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s = unquote(s) |
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# fix padding |
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m = len(s) % 4 |
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if m != 0: |
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s += '=' * (4 - m) |
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b = base64.b64decode(s) |
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encoding = kwargs.pop('encoding', 'utf-8') |
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format = kwargs.pop('format', None) |
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if encoding: |
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data = decode_bytes(b, encoding=encoding, format=format) |
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else: |
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data = b |
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return data |
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def decode_bytes(b, encoding='utf-8', format=None, **kwargs): |
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s = b.decode(encoding) |
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# fix trailing null chars |
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s = s.strip().strip('\x00').strip() |
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if format: |
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decoders = { |
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'json': decode_json, |
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'toml': decode_toml, |
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'yaml': decode_yaml, |
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'xml': decode_xml, |
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} |
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decoder = decoders[format] |
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data = decoder(s, **kwargs) |
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else: |
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data = s |
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return data |
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def decode_json(s, **kwargs): |
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data = json.loads(s, **kwargs) |
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return data |
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def decode_query_string(s, **kwargs): |
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flat = kwargs.pop('flat', True) |
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qs_re = r'^(([\w\-\%\+]+\=[\w\-\%\+]*)+([\&]{1})?)+' |
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qs_pattern = re.compile(qs_re) |
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if qs_pattern.match(s): |
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data = parse_qs(s) |
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if flat: |
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data = { key:value[0] for key, value in data.items() } |
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return data |
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else: |
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raise ValueError('Invalid query string: {}'.format(s)) |
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def decode_xml(s, **kwargs): |
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kwargs.setdefault('dict_constructor', dict) |
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data = xmltodict.parse(s, **kwargs) |
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return data |
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def decode_toml(s, **kwargs): |
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data = toml.loads(s, **kwargs) |
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return data |
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def decode_yaml(s, **kwargs): |
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kwargs.setdefault('Loader', yaml.Loader) |
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data = yaml.load(s, **kwargs) |
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return data |
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def encode_base64(d, **kwargs): |
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encoding = kwargs.pop('encoding', 'utf-8') |
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encode_format = kwargs.pop('format', 'json') |
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if encode_format: |
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encoders = { |
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'json': encode_json, |
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'toml': encode_toml, |
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'yaml': encode_yaml, |
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'xml': encode_xml, |
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} |
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encode_func = encoders.get(encode_format.lower(), None) |
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if encode_func: |
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data = encode_func(d, **kwargs) |
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if isinstance(data, string_types): |
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data = data.encode(encoding) |
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data = base64.b64encode(data).decode(encoding) |
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return data |
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def encode_json(d, **kwargs): |
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data = json.dumps(d, **kwargs) |
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return data |
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def encode_query_string(d, **kwargs): |
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data = urlencode(d, **kwargs) |
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return data |
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def encode_toml(d, **kwargs): |
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data = toml.dumps(d, **kwargs) |
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return data |
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def encode_xml(d, **kwargs): |
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data = xmltodict.unparse(d, **kwargs) |
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return data |
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def encode_yaml(d, **kwargs): |
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data = yaml.dump(d, **kwargs) |
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return data |
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def read_content(s): |
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# s -> filepath or url or data |
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if s.startswith('http://') or s.startswith('https://'): |
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content = read_url(s) |
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elif os.path.isfile(s): |
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content = read_file(s) |
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else: |
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content = s |
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return content |
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def read_file(filepath): |
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handler = open(filepath, 'r') |
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content = handler.read() |
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handler.close() |
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return content |
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def read_url(url, *args, **kwargs): |
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response = requests.get(url, *args, **kwargs) |
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content = response.text |
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return content |
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def write_file(filepath, content): |
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# https://stackoverflow.com/questions/12517451/automatically-creating-directories-with-file-output |
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filedir = os.path.dirname(filepath) |
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if not os.path.exists(filedir): |
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try: |
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os.makedirs(filedir) |
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except OSError as e: |
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# Guard against race condition |
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if e.errno != errno.EEXIST: |
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raise e |
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handler = open(filepath, 'w+') |
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handler.write(content) |
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handler.close() |
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return True |
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fabiocaccamo /
python-benedict
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