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307 lines
10 KiB
307 lines
10 KiB
# -*- coding: utf-8 -*-
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#
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# Copyright (C) 2019 Chris Caron <lead2gold@gmail.com>
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# All rights reserved.
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#
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# This code is licensed under the MIT License.
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#
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# Permission is hereby granted, free of charge, to any person obtaining a copy
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# of this software and associated documentation files(the "Software"), to deal
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# in the Software without restriction, including without limitation the rights
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# to use, copy, modify, merge, publish, distribute, sublicense, and / or sell
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# copies of the Software, and to permit persons to whom the Software is
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# furnished to do so, subject to the following conditions :
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#
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# The above copyright notice and this permission notice shall be included in
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# all copies or substantial portions of the Software.
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#
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# THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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# IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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# FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.IN NO EVENT SHALL THE
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# AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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# LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
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# OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
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# THE SOFTWARE.
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import six
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import requests
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import base64
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from json import dumps
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from .NotifyBase import NotifyBase
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from ..URLBase import PrivacyMode
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from ..common import NotifyImageSize
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from ..common import NotifyType
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from ..AppriseLocale import gettext_lazy as _
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class NotifyJSON(NotifyBase):
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"""
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A wrapper for JSON Notifications
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"""
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# The default descriptive name associated with the Notification
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service_name = 'JSON'
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# The default protocol
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protocol = 'json'
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# The default secure protocol
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secure_protocol = 'jsons'
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# A URL that takes you to the setup/help of the specific protocol
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setup_url = 'https://github.com/caronc/apprise/wiki/Notify_Custom_JSON'
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# Allows the user to specify the NotifyImageSize object
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image_size = NotifyImageSize.XY_128
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# Disable throttle rate for JSON requests since they are normally
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# local anyway
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request_rate_per_sec = 0
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# Define object templates
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templates = (
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'{schema}://{host}',
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'{schema}://{host}:{port}',
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'{schema}://{user}@{host}',
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'{schema}://{user}@{host}:{port}',
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'{schema}://{user}:{password}@{host}',
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'{schema}://{user}:{password}@{host}:{port}',
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)
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# Define our tokens; these are the minimum tokens required required to
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# be passed into this function (as arguments). The syntax appends any
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# previously defined in the base package and builds onto them
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template_tokens = dict(NotifyBase.template_tokens, **{
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'host': {
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'name': _('Hostname'),
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'type': 'string',
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'required': True,
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},
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'port': {
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'name': _('Port'),
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'type': 'int',
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'min': 1,
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'max': 65535,
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},
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'user': {
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'name': _('Username'),
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'type': 'string',
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},
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'password': {
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'name': _('Password'),
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'type': 'string',
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'private': True,
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},
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})
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# Define any kwargs we're using
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template_kwargs = {
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'headers': {
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'name': _('HTTP Header'),
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'prefix': '+',
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},
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}
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def __init__(self, headers=None, **kwargs):
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"""
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Initialize JSON Object
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headers can be a dictionary of key/value pairs that you want to
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additionally include as part of the server headers to post with
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"""
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super(NotifyJSON, self).__init__(**kwargs)
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self.fullpath = kwargs.get('fullpath')
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if not isinstance(self.fullpath, six.string_types):
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self.fullpath = '/'
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self.headers = {}
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if headers:
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# Store our extra headers
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self.headers.update(headers)
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return
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def url(self, privacy=False, *args, **kwargs):
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"""
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Returns the URL built dynamically based on specified arguments.
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"""
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# Our URL parameters
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params = self.url_parameters(privacy=privacy, *args, **kwargs)
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# Append our headers into our parameters
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params.update({'+{}'.format(k): v for k, v in self.headers.items()})
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# Determine Authentication
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auth = ''
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if self.user and self.password:
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auth = '{user}:{password}@'.format(
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user=NotifyJSON.quote(self.user, safe=''),
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password=self.pprint(
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self.password, privacy, mode=PrivacyMode.Secret, safe=''),
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)
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elif self.user:
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auth = '{user}@'.format(
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user=NotifyJSON.quote(self.user, safe=''),
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)
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default_port = 443 if self.secure else 80
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return '{schema}://{auth}{hostname}{port}{fullpath}/?{params}'.format(
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schema=self.secure_protocol if self.secure else self.protocol,
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auth=auth,
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# never encode hostname since we're expecting it to be a valid one
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hostname=self.host,
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port='' if self.port is None or self.port == default_port
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else ':{}'.format(self.port),
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fullpath=NotifyJSON.quote(self.fullpath, safe='/'),
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params=NotifyJSON.urlencode(params),
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)
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def send(self, body, title='', notify_type=NotifyType.INFO, attach=None,
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**kwargs):
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"""
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Perform JSON Notification
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"""
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headers = {
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'User-Agent': self.app_id,
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'Content-Type': 'application/json'
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}
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# Apply any/all header over-rides defined
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headers.update(self.headers)
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# Track our potential attachments
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attachments = []
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if attach:
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for attachment in attach:
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# Perform some simple error checking
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if not attachment:
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# We could not access the attachment
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self.logger.error(
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'Could not access attachment {}.'.format(
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attachment.url(privacy=True)))
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return False
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try:
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with open(attachment.path, 'rb') as f:
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# Output must be in a DataURL format (that's what
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# PushSafer calls it):
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attachments.append({
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'filename': attachment.name,
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'base64': base64.b64encode(f.read())
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.decode('utf-8'),
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'mimetype': attachment.mimetype,
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})
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except (OSError, IOError) as e:
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self.logger.warning(
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'An I/O error occurred while reading {}.'.format(
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attachment.name if attachment else 'attachment'))
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self.logger.debug('I/O Exception: %s' % str(e))
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return False
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# prepare JSON Object
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payload = {
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# Version: Major.Minor, Major is only updated if the entire
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# schema is changed. If just adding new items (or removing
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# old ones, only increment the Minor!
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'version': '1.0',
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'title': title,
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'message': body,
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'attachments': attachments,
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'type': notify_type,
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}
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auth = None
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if self.user:
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auth = (self.user, self.password)
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# Set our schema
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schema = 'https' if self.secure else 'http'
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url = '%s://%s' % (schema, self.host)
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if isinstance(self.port, int):
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url += ':%d' % self.port
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url += self.fullpath
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self.logger.debug('JSON POST URL: %s (cert_verify=%r)' % (
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url, self.verify_certificate,
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))
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self.logger.debug('JSON Payload: %s' % str(payload))
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# Always call throttle before any remote server i/o is made
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self.throttle()
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try:
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r = requests.post(
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url,
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data=dumps(payload),
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headers=headers,
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auth=auth,
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verify=self.verify_certificate,
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timeout=self.request_timeout,
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)
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if r.status_code != requests.codes.ok:
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# We had a problem
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status_str = \
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NotifyJSON.http_response_code_lookup(r.status_code)
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self.logger.warning(
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'Failed to send JSON notification: '
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'{}{}error={}.'.format(
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status_str,
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', ' if status_str else '',
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r.status_code))
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self.logger.debug('Response Details:\r\n{}'.format(r.content))
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# Return; we're done
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return False
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else:
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self.logger.info('Sent JSON notification.')
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except requests.RequestException as e:
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self.logger.warning(
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'A Connection error occurred sending JSON '
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'notification to %s.' % self.host)
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self.logger.debug('Socket Exception: %s' % str(e))
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# Return; we're done
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return False
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return True
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@staticmethod
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def parse_url(url):
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"""
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Parses the URL and returns enough arguments that can allow
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us to re-instantiate this object.
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"""
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results = NotifyBase.parse_url(url)
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if not results:
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# We're done early as we couldn't load the results
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return results
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# Add our headers that the user can potentially over-ride if they wish
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# to to our returned result set
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results['headers'] = results['qsd+']
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if results['qsd-']:
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results['headers'].update(results['qsd-'])
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NotifyBase.logger.deprecate(
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"minus (-) based JSON header tokens are being "
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" removed; use the plus (+) symbol instead.")
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# Tidy our header entries by unquoting them
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results['headers'] = {NotifyJSON.unquote(x): NotifyJSON.unquote(y)
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for x, y in results['headers'].items()}
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return results
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