/[svn.andrew.net.au]/asterisk/c2c.py
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Contents of /asterisk/c2c.py

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Revision 48 - (show annotations)
Mon Sep 7 00:51:17 2009 UTC (12 years ago) by apollock
File MIME type: text/x-python
File size: 4238 byte(s)
Initial commit of home-grown click to call interface

1 #!/usr/bin/python
2
3 import cgi, Cookie
4 import cgitb; cgitb.enable()
5 import Asterisk.Manager
6 import time
7 import os
8
9 _header_printed = False
10
11 def print_header(headers=None, cookies=None):
12 """Spit out the required headers for a CGI script. Optionally set cookies"""
13
14 global _header_printed
15 if not _header_printed:
16 print "Content-type: text/html"
17 if cookies:
18 print cookies
19 if headers:
20 for header in headers.keys():
21 print "%s: %s" % (header, headers.get(header))
22 print "\n"
23 _header_printed = True
24
25
26 def make_options(options={}, default=""):
27 html = ""
28 individual_options = []
29 for optionvalue in options.keys():
30 if optionvalue == default:
31 individual_options.append("""<option value="%s"%s>%s</option>""" % (optionvalue, " selected", options.get(optionvalue)))
32 else:
33 individual_options.append("""<option value="%s"%s>%s</option>""" % (optionvalue, "", options.get(optionvalue)))
34 html = "".join(individual_options)
35 return html
36
37
38 def display_form(default_source="", default_destination="", default_transport="", remember=False):
39 """Display the form HTML, optionally set default values"""
40
41 print_header()
42 if remember:
43 remember = " checked"
44 print """<html>
45 <head>
46 <title>Click to call</title>
47 </head>
48 <body>
49 <h1>Asterisk click to call gateway</h1>
50 <form method="post">
51 <table>
52 <tr>
53 <td>Your number</td><td><input type="text" name="source" value="%(default_source)s"></td><td>via <select name="transport">%(options)s</select> (as dialled via the transport)</td>
54 </tr>
55 <tr>
56 <td>Number to call</td><td><input type="text" name="destination" value="%(default_destination)s"></td><td>(as dialled internally)</td>
57 </tr>
58 <tr>
59 <td colspan=3><input type="checkbox" name="save_source"%(remember)s> Remember my number and transport</td>
60 </tr>
61 <tr>
62 <td colspan=3><input type="submit" name="submit" value="Place call"><input type="reset" value="Clear"></td>
63 </tr>
64 </table>
65 </form>
66 </body>
67 </html>
68 """ % { 'default_source': default_source,
69 'default_destination': default_destination,
70 'options': make_options({"Zap/g3": "US Landline", "SIP/engin": "Australian SIP", "SIP": "Internal SIP extension"}, default_transport),
71 'remember': remember
72 }
73
74
75 def process_form(form):
76 """Process a submitted form"""
77
78 if "source" not in form.keys():
79 display_form()
80 elif "destination" not in form.keys():
81 display_form(default_source=form.getfirst("source"))
82 else:
83 cookie = Cookie.SimpleCookie()
84 if "save_source" in form.keys():
85 cookie["source"] = form.getfirst("source")
86 cookie["source"]["expires"] = time.asctime(tuple([time.gmtime()[0]+1] + list(time.gmtime()[1:])))
87 cookie["transport"] = form.getfirst("transport")
88 cookie["transport"]["expires"] = cookie["source"]["expires"]
89 else:
90 cookie.load(os.environ.get("HTTP_COOKIE", ""))
91 if "source" in cookie:
92 cookie["source"] = ""
93 cookie["source"]["expires"] = time.asctime(time.gmtime())
94 if "transport" in cookie:
95 cookie["transport"] = ""
96 cookie["transport"]["expires"] = time.asctime(time.gmtime())
97 print_header(cookies=cookie)
98 print "<h1>Asterisk click to call gateway</h1>"
99 manager = None
100 try:
101 manager = Asterisk.Manager.Manager(("localhost", 5038), "apache", "letmein")
102 except Exception, e:
103 print "Sorry, got an exception (%s) when trying to connect to Asterisk" % e
104 #result = { "Message": "Simulating", "Response": "Success" }
105 if manager:
106 try:
107 result = manager.Originate(channel="%s/%s" % (form.getfirst("transport"), form.getfirst("source")), context="internal-ctc", extension="%s" % form.getfirst("destination"), priority=1)
108 if result:
109 print "%(Response)s: %(Message)s" % result
110 except Exception, e:
111 print "Got an exception: %s" % e
112
113
114 if __name__ == "__main__":
115 form = cgi.FieldStorage()
116 if not(form.has_key("submit")):
117 print_header()
118 cookies = Cookie.SimpleCookie()
119 cookies.load(os.environ.get("HTTP_COOKIE", ""))
120 default_source=cookies.get("source", "")
121 default_transport=cookies.get("transport", "")
122 if default_source:
123 default_source = default_source.value
124 if default_transport:
125 default_transport = default_transport.value
126 display_form(default_source=default_source, default_transport=default_transport, remember="source" in cookies)
127 else:
128 process_form(form)

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