kopia lustrzana https://github.com/n1ywb/python-hamtools
152 wiersze
4.7 KiB
Python
Executable File
152 wiersze
4.7 KiB
Python
Executable File
#!/usr/bin/env python
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#
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# Copyright 2009, 2012, 2014 by Jeffrey M. Laughlin
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#
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# This program is free software: you can redistribute it and/or modify
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# it under the terms of the GNU Affero General Public License as
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# published by the Free Software Foundation, either version 3 of the
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# License, or (at your option) any later version.
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#
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# This program is distributed in the hope that it will be useful,
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# but WITHOUT ANY WARRANTY; without even the implied warranty of
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# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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# GNU Affero General Public License for more details.
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#
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# You should have received a copy of the GNU Affero General Public License
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# along with this program. If not, see <http://www.gnu.org/licenses/>.
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#
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import httplib, urllib
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from xml.dom import minidom
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import sys
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import os
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import sqlite3
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import logging
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log = logging.getLogger(__name__)
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CACHEPATH = os.path.join(os.environ.get('XDG_CACHE_HOME', os.environ['HOME']), '.qrz_cache')
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testSessionXML = """\
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<?xml version="1.0" ?>
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<QRZDatabase xmlns="http://xml.qrz.com">
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<Session>
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<Key>2331uf894c4bd29f3923f3bacf02c532d7bd9</Key>
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<GMTime>Sun Aug 16 03:51:47 2006</GMTime>
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</Session>
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</QRZDatabase>
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"""
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class QrzError(Exception):
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pass
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class NotFound(QrzError):
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pass
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class CallMismatch(QrzError):
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pass
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class QrzRequestError(QrzError):
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pass
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class Callsign(object):
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conversions = dict(
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lat=float,
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lon=float,
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)
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def __init__(self, node):
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self.node = node
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def __getitem__(self, key):
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try:
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value = self.node.getElementsByTagName(key)[0].firstChild.data
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except IndexError, e:
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return None
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if key in self.conversions.keys():
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value = self.conversions[key](value)
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return value
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class Session(object):
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def __init__(self, user=None, passwd=None, cachepath=CACHEPATH, key=None):
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# post http://xml.qrz.com/xml?username=user;password=passwdo
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# self.key = minidom parse key
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# check for alert or error
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if not key:
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xml = self.request(dict(username=user, password=passwd))
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log.debug(xml)
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dom = minidom.parseString(xml)
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session = dom.getElementsByTagName("Session")[0]
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self.checkErr(session)
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key = session.getElementsByTagName("Key")[0].firstChild.data
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self.key = key
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self.db = sqlite3.connect(cachepath)
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self.db.text_factory = str
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try:
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self.db.execute("""
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create table dict (
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key,
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val
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)
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""")
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self.db.commit();
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except sqlite3.OperationalError:
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log.warning("maybe cache table exists?")
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def request(self, params):
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hc = httplib.HTTPConnection("xml.qrz.com")
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headers = {"Content-type": "application/x-www-form-urlencoded",
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"Accept": "text/plain"}
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hc.request("POST", "/xml", urllib.urlencode(params), headers)
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resp = hc.getresponse()
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if resp.status != httplib.OK:
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raise QrzRequestError("Status %d" % resp.status)
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return resp.read()
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def qrz(self, callsign):
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# http://xml.qrz.com/xml?s=2331uf894c4bd29f3923f3bacf02c532d7bd9;callsign=aa7bq
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log.debug("qrz %s" % callsign)
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miss = True
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c = self.db.cursor()
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xml = c.execute('select val from dict where key == ?',
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(callsign,)).fetchone()
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if not xml:
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log.debug("miss %s" % callsign)
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xml = self.request(dict(s=self.key,callsign=callsign))
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else:
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log.debug("hit %s" % callsign)
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miss = False
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xml = xml[0]
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try:
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dom = minidom.parseString(xml)
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session = Callsign(dom.getElementsByTagName("Session")[0])
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e = session['Error']
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if e:
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if not e.startswith("Not found"):
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raise QrzError(e)
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if miss:
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self.db.execute("insert into dict values (?, ?)", (callsign, xml))
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self.db.commit();
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if e:
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raise NotFound(callsign)
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callnode = dom.getElementsByTagName("Callsign")[0]
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data = Callsign(callnode)
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if data['call'].lower() != callsign.lower():
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raise CallMismatch("Calls do not match", data['call'], callsign)
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return data
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except QrzError, e:
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log.warning("QRZ.com lookup failed: %s", repr(e))
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raise
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except Exception:
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log.debug(xml)
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raise
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def __enter__(self, *args, **kwargs):
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return self
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def __exit__(self, *args, **kwargs):
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self.db.close()
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