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code.delx.au - pulseaudio/blob - src/polypcore/protocol-http.c
86ea3b155a1267f4804af05e7729e2a00c899096
4 This file is part of polypaudio.
6 polypaudio is free software; you can redistribute it and/or modify
7 it under the terms of the GNU Lesser General Public License as published
8 by the Free Software Foundation; either version 2 of the License,
9 or (at your option) any later version.
11 polypaudio is distributed in the hope that it will be useful, but
12 WITHOUT ANY WARRANTY; without even the implied warranty of
13 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
14 General Public License for more details.
16 You should have received a copy of the GNU Lesser General Public License
17 along with polypaudio; if not, write to the Free Software
18 Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307
31 #include <polyp/util.h>
32 #include <polyp/xmalloc.h>
34 #include <polypcore/ioline.h>
35 #include <polypcore/log.h>
36 #include <polypcore/namereg.h>
37 #include <polypcore/cli-text.h>
39 #include "protocol-http.h"
41 /* Don't allow more than this many concurrent connections */
42 #define MAX_CONNECTIONS 10
44 #define internal_server_error(c) http_message((c), 500, "Internal Server Error", NULL)
47 #define URL_CSS "/style"
48 #define URL_STATUS "/status"
51 pa_protocol_http
*protocol
;
53 enum { REQUEST_LINE
, MIME_HEADER
, DATA
} state
;
57 struct pa_protocol_http
{
60 pa_socket_server
*server
;
61 pa_idxset
*connections
;
64 static void http_response(struct connection
*c
, int code
, const char *msg
, const char *mime
) {
70 snprintf(s
, sizeof(s
),
74 "Cache-Control: no-cache\n"
76 "Server: "PACKAGE_NAME
"/"PACKAGE_VERSION
"\n"
77 "\n", code
, msg
, mime
);
79 pa_ioline_puts(c
->line
, s
);
82 static void http_message(struct connection
*c
, int code
, const char *msg
, const char *text
) {
86 http_response(c
, code
, msg
, "text/html");
91 snprintf(s
, sizeof(s
),
92 "<?xml version=\"1.0\"?>\n"
93 "<!DOCTYPE html PUBLIC \"-//W3C//DTD XHTML 1.0 Strict//EN\" \"http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd\">\n"
94 "<html xmlns=\"http://www.w3.org/1999/xhtml\"><head><title>%s</title></head>\n"
95 "<body>%s</body></html>\n",
98 pa_ioline_puts(c
->line
, s
);
99 pa_ioline_defer_close(c
->line
);
103 static void connection_free(struct connection
*c
, int del
) {
110 pa_idxset_remove_by_data(c
->protocol
->connections
, c
, NULL
);
111 pa_ioline_unref(c
->line
);
115 static void line_callback(pa_ioline
*line
, const char *s
, void *userdata
) {
116 struct connection
*c
= userdata
;
122 connection_free(c
, 1);
128 if (memcmp(s
, "GET ", 4))
133 c
->url
= pa_xstrndup(s
, strcspn(s
, " \r\n\t?"));
134 c
->state
= MIME_HEADER
;
141 /* Ignore MIME headers */
142 if (strcspn(s
, " \r\n") != 0)
148 pa_log_info(__FILE__
": request for %s", c
->url
);
150 if (!strcmp(c
->url
, URL_ROOT
)) {
152 http_response(c
, 200, "OK", "text/html");
154 pa_ioline_puts(c
->line
,
155 "<?xml version=\"1.0\"?>\n"
156 "<!DOCTYPE html PUBLIC \"-//W3C//DTD XHTML 1.0 Strict//EN\" \"http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd\">\n"
157 "<html xmlns=\"http://www.w3.org/1999/xhtml\"><title>"PACKAGE_NAME
" "PACKAGE_VERSION
"</title>\n"
158 "<link rel=\"stylesheet\" type=\"text/css\" href=\"style\"/></head><body>\n");
160 pa_ioline_puts(c
->line
,
161 "<h1>"PACKAGE_NAME
" "PACKAGE_VERSION
"</h1>\n"
164 #define PRINTF_FIELD(a,b) pa_ioline_printf(c->line, "<tr><td><b>%s</b></td><td>%s</td></tr>\n",(a),(b))
166 PRINTF_FIELD("User Name:", pa_get_user_name(txt
, sizeof(txt
)));
167 PRINTF_FIELD("Fully Qualified Domain Name:", pa_get_fqdn(txt
, sizeof(txt
)));
168 PRINTF_FIELD("Default Sample Specification:", pa_sample_spec_snprint(txt
, sizeof(txt
), &c
->protocol
->core
->default_sample_spec
));
169 PRINTF_FIELD("Default Sink:", pa_namereg_get_default_sink_name(c
->protocol
->core
));
170 PRINTF_FIELD("Default Source:", pa_namereg_get_default_source_name(c
->protocol
->core
));
172 pa_ioline_puts(c
->line
, "</table>");
174 pa_ioline_puts(c
->line
, "<p><a href=\"/status\">Click here</a> for an extensive server status report.</p>");
176 pa_ioline_puts(c
->line
, "</body></html>\n");
178 pa_ioline_defer_close(c
->line
);
179 } else if (!strcmp(c
->url
, URL_CSS
)) {
180 http_response(c
, 200, "OK", "text/css");
182 pa_ioline_puts(c
->line
,
183 "body { color: black; background-color: white; margin: 0.5cm; }\n"
184 "a:link, a:visited { color: #900000; }\n"
185 "p { margin-left: 0.5cm; margin-right: 0.5cm; }\n"
186 "h1 { color: #00009F; }\n"
187 "h2 { color: #00009F; }\n"
188 "ul { margin-left: .5cm; }\n"
189 "ol { margin-left: .5cm; }\n"
190 "pre { margin-left: .5cm; background-color: #f0f0f0; padding: 0.4cm;}\n"
191 ".grey { color: #afafaf; }\n"
192 "table { margin-left: 1cm; border:1px solid lightgrey; padding: 0.2cm; }\n"
193 "td { padding-left:10px; padding-right:10px; }\n");
195 pa_ioline_defer_close(c
->line
);
196 } else if (!strcmp(c
->url
, URL_STATUS
)) {
199 http_response(c
, 200, "OK", "text/plain");
200 r
= pa_full_status_string(c
->protocol
->core
);
201 pa_ioline_puts(c
->line
, r
);
204 pa_ioline_defer_close(c
->line
);
206 http_message(c
, 404, "Not Found", NULL
);
218 internal_server_error(c
);
221 static void on_connection(pa_socket_server
*s
, pa_iochannel
*io
, void *userdata
) {
222 pa_protocol_http
*p
= userdata
;
223 struct connection
*c
;
224 assert(s
&& io
&& p
);
226 if (pa_idxset_size(p
->connections
)+1 > MAX_CONNECTIONS
) {
227 pa_log_warn(__FILE__
": Warning! Too many connections (%u), dropping incoming connection.", MAX_CONNECTIONS
);
228 pa_iochannel_free(io
);
232 c
= pa_xmalloc(sizeof(struct connection
));
234 c
->line
= pa_ioline_new(io
);
235 c
->state
= REQUEST_LINE
;
238 pa_ioline_set_callback(c
->line
, line_callback
, c
);
239 pa_idxset_put(p
->connections
, c
, NULL
);
242 pa_protocol_http
* pa_protocol_http_new(pa_core
*core
, pa_socket_server
*server
, pa_module
*m
, PA_GCC_UNUSED pa_modargs
*ma
) {
244 assert(core
&& server
);
246 p
= pa_xmalloc(sizeof(pa_protocol_http
));
250 p
->connections
= pa_idxset_new(NULL
, NULL
);
252 pa_socket_server_set_callback(p
->server
, on_connection
, p
);
257 static void free_connection(void *p
, PA_GCC_UNUSED
void *userdata
) {
259 connection_free(p
, 0);
262 void pa_protocol_http_free(pa_protocol_http
*p
) {
265 pa_idxset_free(p
->connections
, free_connection
, NULL
);
266 pa_socket_server_unref(p
->server
);