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23c9e63c DD |
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 | ||
8507f105 DD |
21 | static char *cvsid = "\n%%% $Id$\n"; |
22 | ||
23c9e63c DD |
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 | { | |
348860fa DD |
37 | int resend = 0; |
38 | ||
23c9e63c | 39 | if (internet == 0) |
4a83b7b0 DD |
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 | } | |
23c9e63c DD |
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 | ||
348860fa DD |
61 | connection = InternetOpenUrl (internet, url, NULL, 0, flags, 0); |
62 | ||
4e8ff53f DD |
63 | try_again: |
64 | ||
65 | if (net_user && net_passwd) | |
66 | { | |
348860fa | 67 | InternetSetOption (connection, INTERNET_OPTION_USERNAME, |
4e8ff53f | 68 | net_user, strlen (net_user)); |
348860fa | 69 | InternetSetOption (connection, INTERNET_OPTION_PASSWORD, |
4e8ff53f DD |
70 | net_passwd, strlen (net_passwd)); |
71 | } | |
72 | ||
23c9e63c DD |
73 | if (net_proxy_user && net_proxy_passwd) |
74 | { | |
348860fa | 75 | InternetSetOption (connection, INTERNET_OPTION_PROXY_USERNAME, |
23c9e63c | 76 | net_proxy_user, strlen (net_proxy_user)); |
348860fa | 77 | InternetSetOption (connection, INTERNET_OPTION_PROXY_PASSWORD, |
23c9e63c DD |
78 | net_proxy_passwd, strlen (net_proxy_passwd)); |
79 | } | |
80 | ||
348860fa DD |
81 | if (resend) |
82 | if (!HttpSendRequest (connection, 0, 0, 0, 0)) | |
83 | connection = 0; | |
23c9e63c DD |
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 | } | |
23c9e63c | 94 | } |
4e8ff53f DD |
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 | { | |
348860fa | 112 | flush_io(); |
4e8ff53f | 113 | get_auth (); |
348860fa | 114 | resend = 1; |
4e8ff53f DD |
115 | goto try_again; |
116 | } | |
117 | else if (type == 407) /* proxy authorization required */ | |
118 | { | |
348860fa | 119 | flush_io(); |
4e8ff53f | 120 | get_proxy_auth (); |
348860fa | 121 | resend = 1; |
4e8ff53f DD |
122 | goto try_again; |
123 | } | |
124 | else if (type >= 300) | |
125 | { | |
126 | connection = 0; | |
127 | return; | |
128 | } | |
129 | } | |
130 | } | |
23c9e63c DD |
131 | } |
132 | ||
348860fa DD |
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 | ||
23c9e63c DD |
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 | } |