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@@ -1,157 +1,157 b'' | |||||
1 | """ |
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1 | """ | |
2 | This module contains helper functions and helper classes. |
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2 | This module contains helper functions and helper classes. | |
3 | """ |
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3 | """ | |
4 | import hashlib |
|
4 | import hashlib | |
5 | import uuid |
|
5 | import uuid | |
6 |
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6 | |||
7 | from boards.abstracts.constants import FILE_DIRECTORY |
|
7 | from boards.abstracts.constants import FILE_DIRECTORY | |
8 | from random import random |
|
8 | from random import random | |
9 | import time |
|
9 | import time | |
10 | import hmac |
|
10 | import hmac | |
11 |
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11 | |||
12 | from django.core.cache import cache |
|
12 | from django.core.cache import cache | |
13 | from django.db.models import Model |
|
13 | from django.db.models import Model | |
14 | from django import forms |
|
14 | from django import forms | |
15 | from django.template.defaultfilters import filesizeformat |
|
15 | from django.template.defaultfilters import filesizeformat | |
16 | from django.utils import timezone |
|
16 | from django.utils import timezone | |
17 | from django.utils.translation import ugettext_lazy as _ |
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17 | from django.utils.translation import ugettext_lazy as _ | |
18 | import magic |
|
18 | import magic | |
19 | import os |
|
19 | import os | |
20 |
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20 | |||
21 | import boards |
|
21 | import boards | |
22 | from boards.settings import get_bool |
|
22 | from boards.settings import get_bool | |
23 | from neboard import settings |
|
23 | from neboard import settings | |
24 |
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24 | |||
25 | CACHE_KEY_DELIMITER = '_' |
|
25 | CACHE_KEY_DELIMITER = '_' | |
26 |
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26 | |||
27 | HTTP_FORWARDED = 'HTTP_X_FORWARDED_FOR' |
|
27 | HTTP_FORWARDED = 'HTTP_X_FORWARDED_FOR' | |
28 | META_REMOTE_ADDR = 'REMOTE_ADDR' |
|
28 | META_REMOTE_ADDR = 'REMOTE_ADDR' | |
29 |
|
29 | |||
30 | SETTING_MESSAGES = 'Messages' |
|
30 | SETTING_MESSAGES = 'Messages' | |
31 | SETTING_ANON_MODE = 'AnonymousMode' |
|
31 | SETTING_ANON_MODE = 'AnonymousMode' | |
32 |
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32 | |||
33 | ANON_IP = '127.0.0.1' |
|
33 | ANON_IP = '127.0.0.1' | |
34 |
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34 | |||
35 | FILE_EXTENSION_DELIMITER = '.' |
|
35 | FILE_EXTENSION_DELIMITER = '.' | |
36 |
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36 | |||
37 |
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37 | |||
38 | def is_anonymous_mode(): |
|
38 | def is_anonymous_mode(): | |
39 | return get_bool(SETTING_MESSAGES, SETTING_ANON_MODE) |
|
39 | return get_bool(SETTING_MESSAGES, SETTING_ANON_MODE) | |
40 |
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40 | |||
41 |
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41 | |||
42 | def get_client_ip(request): |
|
42 | def get_client_ip(request): | |
43 | if is_anonymous_mode(): |
|
43 | if is_anonymous_mode(): | |
44 | ip = ANON_IP |
|
44 | ip = ANON_IP | |
45 | else: |
|
45 | else: | |
46 | x_forwarded_for = request.META.get(HTTP_FORWARDED) |
|
46 | x_forwarded_for = request.META.get(HTTP_FORWARDED) | |
47 | if x_forwarded_for: |
|
47 | if x_forwarded_for: | |
48 | ip = x_forwarded_for.split(',')[-1].strip() |
|
48 | ip = x_forwarded_for.split(',')[-1].strip() | |
49 | else: |
|
49 | else: | |
50 | ip = request.META.get(META_REMOTE_ADDR) |
|
50 | ip = request.META.get(META_REMOTE_ADDR) | |
51 | return ip |
|
51 | return ip | |
52 |
|
52 | |||
53 |
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53 | |||
54 | # TODO The output format is not epoch because it includes microseconds |
|
54 | # TODO The output format is not epoch because it includes microseconds | |
55 | def datetime_to_epoch(datetime): |
|
55 | def datetime_to_epoch(datetime): | |
56 | return int(time.mktime(timezone.localtime( |
|
56 | return int(time.mktime(timezone.localtime( | |
57 | datetime,timezone.get_current_timezone()).timetuple()) |
|
57 | datetime,timezone.get_current_timezone()).timetuple()) | |
58 | * 1000000 + datetime.microsecond) |
|
58 | * 1000000 + datetime.microsecond) | |
59 |
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59 | |||
60 |
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60 | |||
61 | def get_websocket_token(user_id='', timestamp=''): |
|
61 | def get_websocket_token(user_id='', timestamp=''): | |
62 | """ |
|
62 | """ | |
63 | Create token to validate information provided by new connection. |
|
63 | Create token to validate information provided by new connection. | |
64 | """ |
|
64 | """ | |
65 |
|
65 | |||
66 | sign = hmac.new(settings.CENTRIFUGE_PROJECT_SECRET.encode()) |
|
66 | sign = hmac.new(settings.CENTRIFUGE_PROJECT_SECRET.encode()) | |
67 | sign.update(settings.CENTRIFUGE_PROJECT_ID.encode()) |
|
67 | sign.update(settings.CENTRIFUGE_PROJECT_ID.encode()) | |
68 | sign.update(user_id.encode()) |
|
68 | sign.update(user_id.encode()) | |
69 | sign.update(timestamp.encode()) |
|
69 | sign.update(timestamp.encode()) | |
70 | token = sign.hexdigest() |
|
70 | token = sign.hexdigest() | |
71 |
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71 | |||
72 | return token |
|
72 | return token | |
73 |
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73 | |||
74 |
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74 | |||
75 | # TODO Test this carefully |
|
75 | # TODO Test this carefully | |
76 | def cached_result(key_method=None): |
|
76 | def cached_result(key_method=None): | |
77 | """ |
|
77 | """ | |
78 | Caches method result in the Django's cache system, persisted by object name, |
|
78 | Caches method result in the Django's cache system, persisted by object name, | |
79 | object name, model id if object is a Django model, args and kwargs if any. |
|
79 | object name, model id if object is a Django model, args and kwargs if any. | |
80 | """ |
|
80 | """ | |
81 | def _cached_result(function): |
|
81 | def _cached_result(function): | |
82 | def inner_func(obj, *args, **kwargs): |
|
82 | def inner_func(obj, *args, **kwargs): | |
83 | cache_key_params = [obj.__class__.__name__, function.__name__] |
|
83 | cache_key_params = [obj.__class__.__name__, function.__name__] | |
84 |
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84 | |||
85 | cache_key_params += args |
|
85 | cache_key_params += args | |
86 | for key, value in kwargs: |
|
86 | for key, value in kwargs: | |
87 | cache_key_params.append(key + ':' + value) |
|
87 | cache_key_params.append(key + ':' + value) | |
88 |
|
88 | |||
89 | if isinstance(obj, Model): |
|
89 | if isinstance(obj, Model): | |
90 | cache_key_params.append(str(obj.id)) |
|
90 | cache_key_params.append(str(obj.id)) | |
91 |
|
91 | |||
92 | if key_method is not None: |
|
92 | if key_method is not None: | |
93 | cache_key_params += [str(arg) for arg in key_method(obj)] |
|
93 | cache_key_params += [str(arg) for arg in key_method(obj)] | |
94 |
|
94 | |||
95 | cache_key = CACHE_KEY_DELIMITER.join(cache_key_params) |
|
95 | cache_key = CACHE_KEY_DELIMITER.join(cache_key_params) | |
96 |
|
96 | |||
97 | persisted_result = cache.get(cache_key) |
|
97 | persisted_result = cache.get(cache_key) | |
98 | if persisted_result is not None: |
|
98 | if persisted_result is not None: | |
99 | result = persisted_result |
|
99 | result = persisted_result | |
100 | else: |
|
100 | else: | |
101 | result = function(obj, *args, **kwargs) |
|
101 | result = function(obj, *args, **kwargs) | |
102 | if result is not None: |
|
102 | if result is not None: | |
103 | cache.set(cache_key, result) |
|
103 | cache.set(cache_key, result) | |
104 |
|
104 | |||
105 | return result |
|
105 | return result | |
106 |
|
106 | |||
107 | return inner_func |
|
107 | return inner_func | |
108 | return _cached_result |
|
108 | return _cached_result | |
109 |
|
109 | |||
110 |
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110 | |||
111 | def get_file_hash(file) -> str: |
|
111 | def get_file_hash(file) -> str: | |
112 | md5 = hashlib.md5() |
|
112 | md5 = hashlib.md5() | |
113 | for chunk in file.chunks(): |
|
113 | for chunk in file.chunks(): | |
114 | md5.update(chunk) |
|
114 | md5.update(chunk) | |
115 | return md5.hexdigest() |
|
115 | return md5.hexdigest() | |
116 |
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116 | |||
117 |
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117 | |||
118 | def validate_file_size(size: int): |
|
118 | def validate_file_size(size: int): | |
119 | max_size = boards.settings.get_int('Forms', 'MaxFileSize') |
|
119 | max_size = boards.settings.get_int('Forms', 'MaxFileSize') | |
120 | if size > max_size: |
|
120 | if max_size > 0 and size > max_size: | |
121 | raise forms.ValidationError( |
|
121 | raise forms.ValidationError( | |
122 | _('File must be less than %s but is %s.') |
|
122 | _('File must be less than %s but is %s.') | |
123 | % (filesizeformat(max_size), filesizeformat(size))) |
|
123 | % (filesizeformat(max_size), filesizeformat(size))) | |
124 |
|
124 | |||
125 |
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125 | |||
126 | def get_extension(filename): |
|
126 | def get_extension(filename): | |
127 | return filename.split(FILE_EXTENSION_DELIMITER)[-1:][0] |
|
127 | return filename.split(FILE_EXTENSION_DELIMITER)[-1:][0] | |
128 |
|
128 | |||
129 |
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129 | |||
130 | def get_upload_filename(model_instance, old_filename): |
|
130 | def get_upload_filename(model_instance, old_filename): | |
131 | extension = get_extension(old_filename) |
|
131 | extension = get_extension(old_filename) | |
132 | new_name = '{}.{}'.format(uuid.uuid4(), extension) |
|
132 | new_name = '{}.{}'.format(uuid.uuid4(), extension) | |
133 |
|
133 | |||
134 | return os.path.join(FILE_DIRECTORY, new_name) |
|
134 | return os.path.join(FILE_DIRECTORY, new_name) | |
135 |
|
135 | |||
136 |
|
136 | |||
137 | def get_file_mimetype(file) -> str: |
|
137 | def get_file_mimetype(file) -> str: | |
138 | file_type = magic.from_buffer(file.chunks().__next__(), mime=True) |
|
138 | file_type = magic.from_buffer(file.chunks().__next__(), mime=True) | |
139 | if file_type is None: |
|
139 | if file_type is None: | |
140 | file_type = 'application/octet-stream' |
|
140 | file_type = 'application/octet-stream' | |
141 | elif type(file_type) == bytes: |
|
141 | elif type(file_type) == bytes: | |
142 | file_type = file_type.decode() |
|
142 | file_type = file_type.decode() | |
143 | return file_type |
|
143 | return file_type | |
144 |
|
144 | |||
145 |
|
145 | |||
146 | def get_domain(url: str) -> str: |
|
146 | def get_domain(url: str) -> str: | |
147 | """ |
|
147 | """ | |
148 | Gets domain from an URL with random number of domain levels. |
|
148 | Gets domain from an URL with random number of domain levels. | |
149 | """ |
|
149 | """ | |
150 | domain_parts = url.split('/') |
|
150 | domain_parts = url.split('/') | |
151 | if len(domain_parts) >= 2: |
|
151 | if len(domain_parts) >= 2: | |
152 | full_domain = domain_parts[2] |
|
152 | full_domain = domain_parts[2] | |
153 | else: |
|
153 | else: | |
154 | full_domain = '' |
|
154 | full_domain = '' | |
155 |
|
155 | |||
156 | return full_domain |
|
156 | return full_domain | |
157 |
|
157 |
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