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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 | ||
b24c88b3 RC |
21 | #if 0 |
22 | static const char *cvsid = | |
23 | "\n%%% $Id$\n"; | |
24 | #endif | |
8507f105 | 25 | |
23c9e63c DD |
26 | #include "win32.h" |
27 | ||
28 | #include "resource.h" | |
29 | #include "state.h" | |
30 | #include "dialog.h" | |
31 | #include "msg.h" | |
32 | #include "netio.h" | |
33 | #include "nio-ie5.h" | |
34 | ||
35 | static HINTERNET internet = 0; | |
36 | ||
341988b9 | 37 | NetIO_IE5::NetIO_IE5 (char const *_url): |
b24c88b3 | 38 | NetIO (_url) |
23c9e63c | 39 | { |
348860fa DD |
40 | int resend = 0; |
41 | ||
23c9e63c | 42 | if (internet == 0) |
4a83b7b0 DD |
43 | { |
44 | HINSTANCE h = LoadLibrary ("wininet.dll"); | |
45 | if (!h) | |
46 | { | |
ab57ceaa | 47 | note (NULL, IDS_WININET); |
4a83b7b0 DD |
48 | connection = 0; |
49 | return; | |
50 | } | |
51 | InternetAttemptConnect (0); | |
52 | internet = InternetOpen ("Cygwin Setup", INTERNET_OPEN_TYPE_PRECONFIG, | |
53 | NULL, NULL, 0); | |
54 | } | |
23c9e63c DD |
55 | |
56 | DWORD flags = | |
2a994e0b | 57 | // INTERNET_FLAG_DONT_CACHE | |
23c9e63c | 58 | INTERNET_FLAG_KEEP_CONNECTION | |
2a994e0b RC |
59 | // INTERNET_FLAG_PRAGMA_NOCACHE | |
60 | // INTERNET_FLAG_RELOAD | | |
b24c88b3 | 61 | INTERNET_FLAG_EXISTING_CONNECT | INTERNET_FLAG_PASSIVE; |
23c9e63c | 62 | |
348860fa DD |
63 | connection = InternetOpenUrl (internet, url, NULL, 0, flags, 0); |
64 | ||
b24c88b3 | 65 | try_again: |
4e8ff53f DD |
66 | |
67 | if (net_user && net_passwd) | |
68 | { | |
348860fa | 69 | InternetSetOption (connection, INTERNET_OPTION_USERNAME, |
4e8ff53f | 70 | net_user, strlen (net_user)); |
348860fa | 71 | InternetSetOption (connection, INTERNET_OPTION_PASSWORD, |
4e8ff53f DD |
72 | net_passwd, strlen (net_passwd)); |
73 | } | |
74 | ||
23c9e63c DD |
75 | if (net_proxy_user && net_proxy_passwd) |
76 | { | |
348860fa | 77 | InternetSetOption (connection, INTERNET_OPTION_PROXY_USERNAME, |
23c9e63c | 78 | net_proxy_user, strlen (net_proxy_user)); |
348860fa | 79 | InternetSetOption (connection, INTERNET_OPTION_PROXY_PASSWORD, |
23c9e63c DD |
80 | net_proxy_passwd, strlen (net_proxy_passwd)); |
81 | } | |
82 | ||
348860fa DD |
83 | if (resend) |
84 | if (!HttpSendRequest (connection, 0, 0, 0, 0)) | |
85 | connection = 0; | |
23c9e63c DD |
86 | |
87 | if (!connection) | |
88 | { | |
89 | if (GetLastError () == ERROR_INTERNET_EXTENDED_ERROR) | |
90 | { | |
91 | char buf[2000]; | |
b24c88b3 | 92 | DWORD e, l = sizeof (buf); |
23c9e63c DD |
93 | InternetGetLastResponseInfo (&e, buf, &l); |
94 | MessageBox (0, buf, "Internet Error", 0); | |
95 | } | |
23c9e63c | 96 | } |
4e8ff53f DD |
97 | |
98 | DWORD type, type_s; | |
99 | type_s = sizeof (type); | |
100 | InternetQueryOption (connection, INTERNET_OPTION_HANDLE_TYPE, | |
101 | &type, &type_s); | |
102 | ||
103 | switch (type) | |
104 | { | |
105 | case INTERNET_HANDLE_TYPE_HTTP_REQUEST: | |
106 | case INTERNET_HANDLE_TYPE_CONNECT_HTTP: | |
107 | type_s = sizeof (DWORD); | |
108 | if (HttpQueryInfo (connection, | |
109 | HTTP_QUERY_STATUS_CODE | HTTP_QUERY_FLAG_NUMBER, | |
110 | &type, &type_s, NULL)) | |
111 | { | |
b24c88b3 | 112 | if (type == 401) /* authorization required */ |
4e8ff53f | 113 | { |
b24c88b3 | 114 | flush_io (); |
ab57ceaa | 115 | get_auth (NULL); |
348860fa | 116 | resend = 1; |
4e8ff53f DD |
117 | goto try_again; |
118 | } | |
b24c88b3 | 119 | else if (type == 407) /* proxy authorization required */ |
4e8ff53f | 120 | { |
b24c88b3 | 121 | flush_io (); |
ab57ceaa | 122 | get_proxy_auth (NULL); |
348860fa | 123 | resend = 1; |
4e8ff53f DD |
124 | goto try_again; |
125 | } | |
126 | else if (type >= 300) | |
127 | { | |
128 | connection = 0; | |
129 | return; | |
130 | } | |
131 | } | |
132 | } | |
23c9e63c DD |
133 | } |
134 | ||
348860fa DD |
135 | void |
136 | NetIO_IE5::flush_io () | |
137 | { | |
138 | DWORD actual = 0; | |
139 | char buf[1024]; | |
b24c88b3 RC |
140 | do |
141 | { | |
142 | InternetReadFile (connection, buf, 1024, &actual); | |
143 | } | |
144 | while (actual > 0); | |
348860fa DD |
145 | } |
146 | ||
23c9e63c DD |
147 | NetIO_IE5::~NetIO_IE5 () |
148 | { | |
149 | if (connection) | |
150 | InternetCloseHandle (connection); | |
151 | } | |
152 | ||
153 | int | |
154 | NetIO_IE5::ok () | |
155 | { | |
156 | return (connection == NULL) ? 0 : 1; | |
157 | } | |
158 | ||
159 | int | |
160 | NetIO_IE5::read (char *buf, int nbytes) | |
161 | { | |
162 | DWORD actual; | |
163 | if (InternetReadFile (connection, buf, nbytes, &actual)) | |
164 | return actual; | |
165 | return -1; | |
166 | } |