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"""App view decorators.""" |
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2
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3
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from functools import wraps |
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4
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5
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from flask import request |
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6
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7
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8
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View Code Duplication |
def require_headers(headers=[]): |
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9
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"""Check for required headers in a view. |
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10
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11
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@require_headers(['X-Foo']) |
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@def view(): |
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pass |
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""" |
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15
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def outer(func, *args, **kwargs): |
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@wraps(func) |
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def inner(*args, **kwargs): |
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if headers: |
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s1, s2 = set(headers), set([h[0] for h in request.headers]) |
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matches = s1.intersection(s2) |
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diff = s1.difference(s2) |
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if len(s1) != len(matches): |
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raise ValueError( |
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'Missing required header(s): {}'.format(list(diff))) |
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return func(*args, **kwargs) |
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return inner |
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return outer |
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28
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29
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30
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View Code Duplication |
def require_cookies(cookies=[]): |
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31
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"""Check for required cookies in a view. |
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32
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33
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@require_cookies(['csrftoken', 'session']) |
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@def view(): |
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pass |
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""" |
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def outer(func, *args, **kwargs): |
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38
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@wraps(func) |
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def inner(*args, **kwargs): |
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if cookies: |
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s1 = set(cookies) |
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s2 = set([k for k, v in request.cookies.items()]) |
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matches = s1.intersection(s2) |
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diff = s1.difference(s2) |
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if len(s1) != len(matches): |
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raise ValueError( |
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'Missing required cookie(s): {}'.format(diff)) |
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48
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return func(*args, **kwargs) |
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49
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return inner |
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50
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return outer |
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51
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52
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53
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View Code Duplication |
def require_args(args={}, use_values=True): |
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54
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"""Check for required args (and values) in a view. |
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55
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56
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@require_args({'paginate': True}) |
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@def view(): |
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pass |
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""" |
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def outer(func, *args, **kwargs): |
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@wraps(func) |
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def inner(*args, **kwargs): |
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63
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if args: |
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s1 = set(args.values()) |
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s2 = set([k for k, v in request.args.items()]) |
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matches = s1.intersection(s2) |
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diff = s1.difference(s2) |
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68
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if len(s1) != len(matches): |
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raise ValueError( |
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'Missing required arg(s): {}'.format(diff)) |
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return func(*args, **kwargs) |
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return inner |
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return outer |
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74
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christabor /
flask_extras
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