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# Copyright 2017 Starbot Discord Project |
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# |
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# Licensed under the Apache License, Version 2.0 (the "License"); |
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# you may not use this file except in compliance with the License. |
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# You may obtain a copy of the License at |
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# |
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# http://www.apache.org/licenses/LICENSE-2.0 |
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# |
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# Unless required by applicable law or agreed to in writing, software |
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# distributed under the License is distributed on an "AS IS" BASIS, |
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# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
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# See the License for the specific language governing permissions and |
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# limitations under the License. |
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import inspect |
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import os |
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import urllib.request |
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import urllib.error |
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import urllib |
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import ssl |
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from api import database |
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from api.database.table import Table, TableTypes |
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def caller_get(): |
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'''Get the caller of the parent function.''' |
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frm = inspect.stack()[2] |
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mod = inspect.getmodule(frm[0]) |
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temp = mod.__name__ |
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return temp.split('.')[-1] |
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#============================= |
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def json_store(string, plugin, filename): |
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'''Store a json in the database.''' |
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database.init() |
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table_strcache = Table('strcache', TableTypes.pGlobal) |
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filename = '{}_{}'.format(plugin, filename) |
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try: |
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entry_strcache = Table.search(table_strcache, 'filename', filename) |
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except: |
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# Table must be empty. |
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entry_strcache = None |
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if entry_strcache: |
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entry_strcache.edit(dict(filename=filename, text=string)) |
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else: |
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Table.insert(table_strcache, dict(filename=filename, text=string)) |
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def json_get(url, caller='', name_custom='', save=True): |
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'''Retrieve and cache a JSON.''' |
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if caller == '': |
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caller_get() |
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if name_custom == '': |
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name_custom = url.split('/')[-1] |
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filename = '{}_{}'.format(caller, name_custom) |
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# Get cached String |
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database.init() |
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table_strcache = Table('strcache', TableTypes.pGlobal) |
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try: |
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entry_strcache = Table.search(table_strcache, 'filename', filename) |
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json_string = entry_strcache.data[2] |
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except: |
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json_string = urllib.request.urlopen(urllib.request.Request(url)).read().decode("utf-8") |
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if save: |
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json_store(json_string, caller, name_custom) |
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return json_string |
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def cache_download(url, filename, caller='', ssl_enabled=True): |
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'''Download a file to the cache''' |
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if caller == '': |
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caller_get() |
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filename_full = 'cache/{}_{}'.format(caller, filename) |
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if os.path.isfile(filename_full): |
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return 1 |
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else: |
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try: |
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if ssl_enabled: |
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urllib.request.urlretrieve(url, filename_full) |
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else: |
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ssl._create_default_https_context = ssl._create_unverified_context |
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urllib.request.urlretrieve(url, filename_full) |
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return 1 |
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except urllib.error.HTTPError: |
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return -1 |
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except urllib.error.URLError: |
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return -2 |
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