|
448
|
1 /*
|
|
|
2 * Copyright (c) 2000, Red Hat, Inc.
|
|
|
3 *
|
|
|
4 * This program is free software; you can redistribute it and/or modify
|
|
|
5 * it under the terms of the GNU General Public License as published by
|
|
|
6 * the Free Software Foundation; either version 2 of the License, or
|
|
|
7 * (at your option) any later version.
|
|
|
8 *
|
|
|
9 * A copy of the GNU General Public License can be found at
|
|
|
10 * http://www.gnu.org/
|
|
|
11 *
|
|
|
12 * Written by DJ Delorie <dj@cygnus.com>
|
|
|
13 *
|
|
|
14 */
|
|
|
15
|
|
|
16 /* The purpose of this file is to manage internet downloads using the
|
|
|
17 Internet Explorer version 5 DLLs. To use this method, the user
|
|
|
18 must already have installed and configured IE5. This module is
|
|
|
19 called from netio.cc, which is called from geturl.cc */
|
|
|
20
|
|
468
|
21 static char *cvsid = "\n%%% $Id: nio-ie5.cc,v 1.3 2001/04/13 09:11:35 michaels Exp $\n";
|
|
448
|
22
|
|
|
23 #include "win32.h"
|
|
|
24
|
|
|
25 #include "resource.h"
|
|
|
26 #include "state.h"
|
|
|
27 #include "dialog.h"
|
|
|
28 #include "msg.h"
|
|
|
29 #include "netio.h"
|
|
|
30 #include "nio-ie5.h"
|
|
|
31
|
|
|
32 static HINTERNET internet = 0;
|
|
|
33
|
|
|
34 NetIO_IE5::NetIO_IE5 (char *_url)
|
|
|
35 : NetIO (_url)
|
|
|
36 {
|
|
|
37 int resend = 0;
|
|
|
38
|
|
|
39 if (internet == 0)
|
|
|
40 {
|
|
|
41 HINSTANCE h = LoadLibrary ("wininet.dll");
|
|
|
42 if (!h)
|
|
|
43 {
|
|
|
44 note (IDS_WININET);
|
|
|
45 connection = 0;
|
|
|
46 return;
|
|
|
47 }
|
|
|
48 InternetAttemptConnect (0);
|
|
|
49 internet = InternetOpen ("Cygwin Setup", INTERNET_OPEN_TYPE_PRECONFIG,
|
|
|
50 NULL, NULL, 0);
|
|
|
51 }
|
|
|
52
|
|
|
53 DWORD flags =
|
|
|
54 INTERNET_FLAG_DONT_CACHE |
|
|
|
55 INTERNET_FLAG_KEEP_CONNECTION |
|
|
|
56 INTERNET_FLAG_PRAGMA_NOCACHE |
|
|
|
57 INTERNET_FLAG_RELOAD |
|
|
|
58 INTERNET_FLAG_EXISTING_CONNECT |
|
|
|
59 INTERNET_FLAG_PASSIVE;
|
|
|
60
|
|
|
61 connection = InternetOpenUrl (internet, url, NULL, 0, flags, 0);
|
|
|
62
|
|
|
63 try_again:
|
|
|
64
|
|
|
65 if (net_user && net_passwd)
|
|
|
66 {
|
|
|
67 InternetSetOption (connection, INTERNET_OPTION_USERNAME,
|
|
|
68 net_user, strlen (net_user));
|
|
|
69 InternetSetOption (connection, INTERNET_OPTION_PASSWORD,
|
|
|
70 net_passwd, strlen (net_passwd));
|
|
|
71 }
|
|
|
72
|
|
|
73 if (net_proxy_user && net_proxy_passwd)
|
|
|
74 {
|
|
|
75 InternetSetOption (connection, INTERNET_OPTION_PROXY_USERNAME,
|
|
|
76 net_proxy_user, strlen (net_proxy_user));
|
|
|
77 InternetSetOption (connection, INTERNET_OPTION_PROXY_PASSWORD,
|
|
|
78 net_proxy_passwd, strlen (net_proxy_passwd));
|
|
|
79 }
|
|
|
80
|
|
|
81 if (resend)
|
|
|
82 if (!HttpSendRequest (connection, 0, 0, 0, 0))
|
|
|
83 connection = 0;
|
|
|
84
|
|
|
85 if (!connection)
|
|
|
86 {
|
|
|
87 if (GetLastError () == ERROR_INTERNET_EXTENDED_ERROR)
|
|
|
88 {
|
|
|
89 char buf[2000];
|
|
|
90 DWORD e, l=sizeof (buf);
|
|
|
91 InternetGetLastResponseInfo (&e, buf, &l);
|
|
|
92 MessageBox (0, buf, "Internet Error", 0);
|
|
|
93 }
|
|
|
94 }
|
|
|
95
|
|
|
96 DWORD type, type_s;
|
|
|
97 type_s = sizeof (type);
|
|
|
98 InternetQueryOption (connection, INTERNET_OPTION_HANDLE_TYPE,
|
|
|
99 &type, &type_s);
|
|
|
100
|
|
|
101 switch (type)
|
|
|
102 {
|
|
|
103 case INTERNET_HANDLE_TYPE_HTTP_REQUEST:
|
|
|
104 case INTERNET_HANDLE_TYPE_CONNECT_HTTP:
|
|
|
105 type_s = sizeof (DWORD);
|
|
|
106 if (HttpQueryInfo (connection,
|
|
|
107 HTTP_QUERY_STATUS_CODE | HTTP_QUERY_FLAG_NUMBER,
|
|
|
108 &type, &type_s, NULL))
|
|
|
109 {
|
|
|
110 if (type == 401) /* authorization required */
|
|
|
111 {
|
|
|
112 flush_io();
|
|
|
113 get_auth ();
|
|
|
114 resend = 1;
|
|
|
115 goto try_again;
|
|
|
116 }
|
|
|
117 else if (type == 407) /* proxy authorization required */
|
|
|
118 {
|
|
|
119 flush_io();
|
|
|
120 get_proxy_auth ();
|
|
|
121 resend = 1;
|
|
|
122 goto try_again;
|
|
|
123 }
|
|
|
124 else if (type >= 300)
|
|
|
125 {
|
|
|
126 connection = 0;
|
|
|
127 return;
|
|
|
128 }
|
|
|
129 }
|
|
|
130 }
|
|
|
131 }
|
|
|
132
|
|
|
133 void
|
|
|
134 NetIO_IE5::flush_io ()
|
|
|
135 {
|
|
|
136 DWORD actual = 0;
|
|
|
137 char buf[1024];
|
|
|
138 do {
|
|
|
139 InternetReadFile (connection, buf, 1024, &actual);
|
|
|
140 } while (actual > 0);
|
|
|
141 }
|
|
|
142
|
|
|
143 NetIO_IE5::~NetIO_IE5 ()
|
|
|
144 {
|
|
|
145 if (connection)
|
|
|
146 InternetCloseHandle (connection);
|
|
|
147 }
|
|
|
148
|
|
|
149 int
|
|
|
150 NetIO_IE5::ok ()
|
|
|
151 {
|
|
|
152 return (connection == NULL) ? 0 : 1;
|
|
|
153 }
|
|
|
154
|
|
|
155 int
|
|
|
156 NetIO_IE5::read (char *buf, int nbytes)
|
|
|
157 {
|
|
|
158 DWORD actual;
|
|
|
159 if (InternetReadFile (connection, buf, nbytes, &actual))
|
|
|
160 return actual;
|
|
|
161 return -1;
|
|
|
162 }
|
