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author | lv-426 <oxcafebaby@yahoo.com> | 2008-05-24 13:59:21 +0000 |
---|---|---|
committer | lv-426 <oxcafebaby@yahoo.com> | 2008-05-24 13:59:21 +0000 |
commit | c51d65ffce7b0542a15afa4d7bb252df6a970b5c (patch) | |
tree | 82dcb0f2fb0f3e9b115e77bae74c42a1186b39f5 /src/examples | |
parent | a0cc83b7c2325dfceec0851c2046148059c84619 (diff) | |
download | libmicrohttpd-c51d65ffce7b0542a15afa4d7bb252df6a970b5c.tar.gz libmicrohttpd-c51d65ffce7b0542a15afa4d7bb252df6a970b5c.zip |
added :
* configure.ac support for --with-gnutls=PFX
* TLS connection handler in daemon.c
* simple TLS echo client server example
Diffstat (limited to 'src/examples')
-rw-r--r-- | src/examples/Makefile.am | 32 | ||||
-rw-r--r-- | src/examples/https_echo_client_example.c | 153 | ||||
-rw-r--r-- | src/examples/https_server_example.c | 182 |
3 files changed, 364 insertions, 3 deletions
diff --git a/src/examples/Makefile.am b/src/examples/Makefile.am index 3d693b23..340f7824 100644 --- a/src/examples/Makefile.am +++ b/src/examples/Makefile.am | |||
@@ -1,10 +1,16 @@ | |||
1 | SUBDIRS = . | 1 | SUBDIRS = . |
2 | 2 | ||
3 | INCLUDES = -I$(top_srcdir)/src/include | 3 | AM_CPPFLAGS = -I$(top_srcdir)/src/include |
4 | 4 | ||
5 | # example programs | 5 | # example programs |
6 | 6 | ||
7 | noinst_PROGRAMS = minimal_example querystring_example fileserver_example fileserver_example_external_select | 7 | noinst_PROGRAMS = \ |
8 | https_server_example \ | ||
9 | https_echo_client_example \ | ||
10 | minimal_example \ | ||
11 | querystring_example \ | ||
12 | fileserver_example \ | ||
13 | fileserver_example_external_select | ||
8 | 14 | ||
9 | minimal_example_SOURCES = \ | 15 | minimal_example_SOURCES = \ |
10 | minimal_example.c | 16 | minimal_example.c |
@@ -21,9 +27,29 @@ fileserver_example_SOURCES = \ | |||
21 | fileserver_example_LDADD = \ | 27 | fileserver_example_LDADD = \ |
22 | $(top_builddir)/src/daemon/libmicrohttpd.la | 28 | $(top_builddir)/src/daemon/libmicrohttpd.la |
23 | 29 | ||
24 | |||
25 | fileserver_example_external_select_SOURCES = \ | 30 | fileserver_example_external_select_SOURCES = \ |
26 | fileserver_example_external_select.c | 31 | fileserver_example_external_select.c |
27 | fileserver_example_external_select_LDADD = \ | 32 | fileserver_example_external_select_LDADD = \ |
28 | $(top_builddir)/src/daemon/libmicrohttpd.la | 33 | $(top_builddir)/src/daemon/libmicrohttpd.la |
29 | 34 | ||
35 | https_server_example_CPPFLAGS = \ | ||
36 | $(GNUTLS_CPPFLAGS) \ | ||
37 | -I$(top_srcdir)/src/daemon | ||
38 | https_server_example_SOURCES = \ | ||
39 | https_server_example.c | ||
40 | https_server_example_LDADD = \ | ||
41 | $(top_builddir)/src/daemon/libmicrohttpd.la | ||
42 | https_server_example_LDFLAGS = \ | ||
43 | -L$(GNUTLS_LIB_PATH) \ | ||
44 | -lgnutls | ||
45 | |||
46 | https_echo_client_example_CPPFLAGS = \ | ||
47 | $(GNUTLS_CPPFLAGS) \ | ||
48 | -I$(top_srcdir)/src/daemon | ||
49 | https_echo_client_example_SOURCES = \ | ||
50 | https_echo_client_example.c | ||
51 | https_echo_client_example_LDADD = \ | ||
52 | $(top_builddir)/src/daemon/libmicrohttpd.la | ||
53 | https_echo_client_example_LDFLAGS = \ | ||
54 | -L$(GNUTLS_LIB_PATH) \ | ||
55 | -lgnutls | ||
diff --git a/src/examples/https_echo_client_example.c b/src/examples/https_echo_client_example.c new file mode 100644 index 00000000..04e26c74 --- /dev/null +++ b/src/examples/https_echo_client_example.c | |||
@@ -0,0 +1,153 @@ | |||
1 | /* | ||
2 | This file is part of libmicrohttpd | ||
3 | (C) 2007 Christian Grothoff | ||
4 | |||
5 | libmicrohttpd is free software; you can redistribute it and/or modify | ||
6 | it under the terms of the GNU General Public License as published | ||
7 | by the Free Software Foundation; either version 2, or (at your | ||
8 | option) any later version. | ||
9 | |||
10 | libmicrohttpd is distributed in the hope that it will be useful, but | ||
11 | WITHOUT ANY WARRANTY; without even the implied warranty of | ||
12 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU | ||
13 | General Public License for more details. | ||
14 | |||
15 | You should have received a copy of the GNU General Public License | ||
16 | along with libmicrohttpd; see the file COPYING. If not, write to the | ||
17 | Free Software Foundation, Inc., 59 Temple Place - Suite 330, | ||
18 | Boston, MA 02111-1307, USA. | ||
19 | */ | ||
20 | |||
21 | /** | ||
22 | * @file https_echo_client.c | ||
23 | * @brief a simple echo client to use in conjuction with the echo TLS server. | ||
24 | * @author LV-426 | ||
25 | */ | ||
26 | |||
27 | #if HAVE_CONFIG_H | ||
28 | # include <config.h> | ||
29 | #endif | ||
30 | |||
31 | #include <stdio.h> | ||
32 | #include <stdlib.h> | ||
33 | #include <string.h> | ||
34 | #include <sys/types.h> | ||
35 | #include <sys/socket.h> | ||
36 | #include <arpa/inet.h> | ||
37 | #include <unistd.h> | ||
38 | #include <gnutls/gnutls.h> | ||
39 | |||
40 | #define MAX_BUF 1024 | ||
41 | #define SA struct sockaddr | ||
42 | #define MSG "GET / HTTP/1.0\r\n\r\n" | ||
43 | |||
44 | extern int tcp_connect (void); | ||
45 | extern void tcp_close (int sd); | ||
46 | |||
47 | int | ||
48 | main (int argc, char **argv) | ||
49 | { | ||
50 | int ret, sd, ii, err; | ||
51 | gnutls_session_t session; | ||
52 | char buffer[MAX_BUF + 1]; | ||
53 | gnutls_anon_client_credentials_t anoncred; | ||
54 | |||
55 | struct sockaddr_in servaddr4; | ||
56 | const struct sockaddr *servaddr; | ||
57 | struct sockaddr_in sa; | ||
58 | socklen_t addrlen; | ||
59 | |||
60 | if (argc < 2) | ||
61 | { | ||
62 | printf ("Usage : %s SERVER-PORT\n", argv[0]); | ||
63 | return 1; | ||
64 | } | ||
65 | |||
66 | gnutls_global_init (); | ||
67 | |||
68 | gnutls_anon_allocate_client_credentials (&anoncred); | ||
69 | |||
70 | /* Initialize TLS session */ | ||
71 | gnutls_init (&session, GNUTLS_CLIENT); | ||
72 | |||
73 | /* Use default priorities */ | ||
74 | gnutls_priority_set_direct (session, "PERFORMANCE:+ANON-DH:!ARCFOUR-128", | ||
75 | NULL); | ||
76 | |||
77 | /* put the anonymous credentials to the current session */ | ||
78 | gnutls_credentials_set (session, GNUTLS_CRD_ANON, anoncred); | ||
79 | |||
80 | sd = socket (AF_INET, SOCK_STREAM, 0); | ||
81 | memset (&sa, '\0', sizeof (sa)); | ||
82 | sa.sin_family = AF_INET; | ||
83 | sa.sin_port = htons (atoi (argv[1])); | ||
84 | inet_pton (AF_INET, "127.0.0.1", &sa.sin_addr); | ||
85 | |||
86 | /* connect to the peer */ | ||
87 | err = connect (sd, (struct sockaddr *) &sa, sizeof (sa)); | ||
88 | if (err < 0) | ||
89 | { | ||
90 | fprintf (stderr, "Connect error\n"); | ||
91 | exit (1); | ||
92 | } | ||
93 | |||
94 | gnutls_transport_set_ptr (session, (gnutls_transport_ptr_t) sd); | ||
95 | |||
96 | /* Perform the TLS handshake */ | ||
97 | ret = gnutls_handshake (session); | ||
98 | |||
99 | if (ret < 0) | ||
100 | { | ||
101 | fprintf (stderr, "*** Handshake failed\n"); | ||
102 | gnutls_perror (ret); | ||
103 | goto end; | ||
104 | } | ||
105 | else | ||
106 | { | ||
107 | printf ("- Handshake was completed\n"); | ||
108 | } | ||
109 | |||
110 | for (;;) | ||
111 | { | ||
112 | /**/ scanf ("%s", buffer); | ||
113 | |||
114 | if (strcmp (buffer, "exit") == 0) | ||
115 | { | ||
116 | gnutls_record_send (session, buffer, strlen (MSG)); | ||
117 | break; | ||
118 | } | ||
119 | gnutls_record_send (session, buffer, strlen (MSG)); | ||
120 | |||
121 | ret = gnutls_record_recv (session, buffer, MAX_BUF); | ||
122 | if (ret == 0) | ||
123 | { | ||
124 | printf ("- Peer has closed the TLS connection\n"); | ||
125 | goto end; | ||
126 | } | ||
127 | else if (ret < 0) | ||
128 | { | ||
129 | fprintf (stderr, "*** Error: %s\n", gnutls_strerror (ret)); | ||
130 | break; | ||
131 | } | ||
132 | |||
133 | printf ("- Received %d bytes: ", ret); | ||
134 | for (ii = 0; ii < ret; ii++) | ||
135 | { | ||
136 | fputc (buffer[ii], stdout); | ||
137 | } | ||
138 | fputs ("\n", stdout); | ||
139 | } | ||
140 | |||
141 | end: | ||
142 | |||
143 | shutdown (sd, SHUT_RDWR); | ||
144 | close (sd); | ||
145 | |||
146 | gnutls_deinit (session); | ||
147 | |||
148 | gnutls_anon_free_client_credentials (anoncred); | ||
149 | |||
150 | gnutls_global_deinit (); | ||
151 | |||
152 | return 0; | ||
153 | } | ||
diff --git a/src/examples/https_server_example.c b/src/examples/https_server_example.c new file mode 100644 index 00000000..709f8502 --- /dev/null +++ b/src/examples/https_server_example.c | |||
@@ -0,0 +1,182 @@ | |||
1 | /* | ||
2 | This file is part of libmicrohttpd | ||
3 | (C) 2007 Christian Grothoff | ||
4 | |||
5 | libmicrohttpd is free software; you can redistribute it and/or modify | ||
6 | it under the terms of the GNU General Public License as published | ||
7 | by the Free Software Foundation; either version 2, or (at your | ||
8 | option) any later version. | ||
9 | |||
10 | libmicrohttpd is distributed in the hope that it will be useful, but | ||
11 | WITHOUT ANY WARRANTY; without even the implied warranty of | ||
12 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU | ||
13 | General Public License for more details. | ||
14 | |||
15 | You should have received a copy of the GNU General Public License | ||
16 | along with libmicrohttpd; see the file COPYING. If not, write to the | ||
17 | Free Software Foundation, Inc., 59 Temple Place - Suite 330, | ||
18 | Boston, MA 02111-1307, USA. | ||
19 | */ | ||
20 | |||
21 | /** | ||
22 | * @file https_server_example.c | ||
23 | * @brief a simple echo server using TLS. echo input from client until 'exit' message is received. | ||
24 | * @author LV-426 | ||
25 | */ | ||
26 | |||
27 | #include "config.h" | ||
28 | #include <microhttpd.h> | ||
29 | #include "internal.h" | ||
30 | |||
31 | #include <stdlib.h> | ||
32 | #ifndef MINGW | ||
33 | #include <unistd.h> | ||
34 | #endif | ||
35 | #include <string.h> | ||
36 | #include <stdio.h> | ||
37 | #include <gnutls/gnutls.h> | ||
38 | |||
39 | #define DH_BITS 1024 | ||
40 | #define MAX_BUF 1024 | ||
41 | /* server credintials */ | ||
42 | gnutls_anon_server_credentials_t anoncred; | ||
43 | |||
44 | /* server Diffie-Hellman parameters */ | ||
45 | static gnutls_dh_params_t dh_params; | ||
46 | |||
47 | |||
48 | /* Generate Diffie Hellman parameters - for use with DHE kx algorithms. */ | ||
49 | static int | ||
50 | generate_dh_params (void) | ||
51 | { | ||
52 | |||
53 | gnutls_dh_params_init (&dh_params); | ||
54 | gnutls_dh_params_generate2 (dh_params, DH_BITS); | ||
55 | return 0; | ||
56 | } | ||
57 | |||
58 | gnutls_session_t | ||
59 | initialize_tls_session (void) | ||
60 | { | ||
61 | gnutls_session_t session; | ||
62 | |||
63 | gnutls_init (&session, GNUTLS_SERVER); | ||
64 | |||
65 | gnutls_priority_set_direct (session, "NORMAL:+ANON-DH", NULL); | ||
66 | |||
67 | gnutls_credentials_set (session, GNUTLS_CRD_ANON, anoncred); | ||
68 | |||
69 | gnutls_dh_set_prime_bits (session, DH_BITS); | ||
70 | |||
71 | return session; | ||
72 | } | ||
73 | |||
74 | /* Accept Policy Callback */ | ||
75 | static int | ||
76 | TLS_echo (void *cls, | ||
77 | struct MHD_Connection *connection, | ||
78 | const char *url, | ||
79 | const char *method, | ||
80 | const char *upload_data, | ||
81 | const char *version, unsigned int *upload_data_size, void **ptr) | ||
82 | { | ||
83 | gnutls_session_t session; | ||
84 | static int aptr; | ||
85 | struct MHD_Response *response; | ||
86 | char buffer[MAX_BUF + 1]; | ||
87 | int ret; | ||
88 | |||
89 | printf ("accepted connection from %d\n", connection->addr->sin_addr); | ||
90 | |||
91 | session = initialize_tls_session (); | ||
92 | |||
93 | gnutls_transport_set_ptr (session, connection->socket_fd); | ||
94 | |||
95 | ret = gnutls_handshake (session); | ||
96 | if (ret < 0) | ||
97 | { | ||
98 | /* set connection as closed */ | ||
99 | connection->socket_fd = 1; | ||
100 | gnutls_deinit (session); | ||
101 | fprintf (stderr, "*** Handshake has failed (%s)\n\n", | ||
102 | gnutls_strerror (ret)); | ||
103 | return MHD_NO; | ||
104 | } | ||
105 | |||
106 | printf ("TLS Handshake completed\n"); | ||
107 | connection->state = MHDS_HANDSHAKE_COMPLETE; | ||
108 | |||
109 | /* simple echo loop. message encryption/decryption is acheived through 'gnutls_record_send' | ||
110 | * & gnutls_record_recv calls. */ | ||
111 | for (;;) | ||
112 | { | ||
113 | memset (buffer, 0, MAX_BUF + 1); | ||
114 | ret = gnutls_record_recv (session, buffer, MAX_BUF); | ||
115 | |||
116 | if (ret < 0) | ||
117 | { | ||
118 | fprintf (stderr, "\n*** Received corrupted " | ||
119 | "data(%d). Closing the connection.\n\n", ret); | ||
120 | break; | ||
121 | } | ||
122 | else if (ret >= 0) | ||
123 | { | ||
124 | if (strcmp (buffer, "exit") == 0) | ||
125 | { | ||
126 | printf ("\n- Peer has closed the GNUTLS connection\n"); | ||
127 | break; | ||
128 | } | ||
129 | else | ||
130 | { | ||
131 | /* echo data back to the client */ | ||
132 | gnutls_record_send (session, buffer, strlen (buffer)); | ||
133 | } | ||
134 | } | ||
135 | } | ||
136 | printf ("\n"); | ||
137 | |||
138 | /* mark connection as closed */ | ||
139 | connection->socket_fd = -1; | ||
140 | |||
141 | gnutls_deinit (session); | ||
142 | |||
143 | return ret; | ||
144 | } | ||
145 | |||
146 | int | ||
147 | main (int argc, char *const *argv) | ||
148 | { | ||
149 | struct MHD_Daemon *daemon; | ||
150 | struct MHD_Daemon *TLS_daemon; | ||
151 | |||
152 | /* look for HTTPS port argument */ | ||
153 | if (argc < 4) | ||
154 | { | ||
155 | printf ("Usage : %s HTTP-PORT SECONDS-TO-RUN HTTPS-PORT\n", argv[0]); | ||
156 | return 1; | ||
157 | } | ||
158 | |||
159 | gnutls_global_init (); | ||
160 | |||
161 | gnutls_anon_allocate_server_credentials (&anoncred); | ||
162 | |||
163 | generate_dh_params (); | ||
164 | |||
165 | gnutls_anon_set_server_dh_params (anoncred, dh_params); | ||
166 | |||
167 | TLS_daemon = MHD_start_daemon (MHD_USE_THREAD_PER_CONNECTION | ||
168 | | MHD_USE_DEBUG | MHD_USE_SSL, | ||
169 | atoi (argv[3]), NULL, NULL, &TLS_echo, NULL, | ||
170 | MHD_OPTION_END); | ||
171 | |||
172 | if (TLS_daemon == NULL) | ||
173 | return 1; | ||
174 | sleep (atoi (argv[2])); | ||
175 | |||
176 | MHD_stop_daemon (daemon); | ||
177 | |||
178 | gnutls_anon_free_server_credentials (anoncred); | ||
179 | |||
180 | gnutls_global_deinit (); | ||
181 | return 0; | ||
182 | } | ||