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authorLennart Poettering <lennart@poettering.net>2005-01-12 17:37:31 +0000
committerLennart Poettering <lennart@poettering.net>2005-01-12 17:37:31 +0000
commit4590f09d0b44aeb7cef3eed72b419444ea36d8e0 (patch)
tree1bdf89c241e1eb1e49906fdb8d163a26927764f0 /polyp/protocol-http.c
parent32bf3a106a946303f2175f01f3124354edd95a3e (diff)
* make pa_sample_spec_snprint return point to written string
* first try of a http module git-svn-id: file:///home/lennart/svn/public/pulseaudio/trunk@339 fefdeb5f-60dc-0310-8127-8f9354f1896f
Diffstat (limited to 'polyp/protocol-http.c')
-rw-r--r--polyp/protocol-http.c244
1 files changed, 244 insertions, 0 deletions
diff --git a/polyp/protocol-http.c b/polyp/protocol-http.c
new file mode 100644
index 00000000..768b7588
--- /dev/null
+++ b/polyp/protocol-http.c
@@ -0,0 +1,244 @@
+/* $Id$ */
+
+/***
+ This file is part of polypaudio.
+
+ polypaudio is free software; you can redistribute it and/or modify
+ it under the terms of the GNU Lesser General Public License as published
+ by the Free Software Foundation; either version 2 of the License,
+ or (at your option) any later version.
+
+ polypaudio is distributed in the hope that it will be useful, but
+ WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ General Public License for more details.
+
+ You should have received a copy of the GNU Lesser General Public License
+ along with polypaudio; if not, write to the Free Software
+ Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307
+ USA.
+***/
+
+#ifdef HAVE_CONFIG_H
+#include <config.h>
+#endif
+
+#include <assert.h>
+#include <stdlib.h>
+#include <stdio.h>
+#include <string.h>
+
+#include "protocol-http.h"
+#include "ioline.h"
+#include "xmalloc.h"
+#include "log.h"
+#include "namereg.h"
+
+/* Don't allow more than this many concurrent connections */
+#define MAX_CONNECTIONS 10
+
+#define internal_server_error(c) http_message((c), 500, "Internal Server Error", NULL)
+
+#define URL_ROOT "/"
+#define URL_CSS "/style.css"
+
+struct connection {
+ struct pa_protocol_http *protocol;
+ struct pa_ioline *line;
+ enum { REQUEST_LINE, MIME_HEADER, DATA } state;
+ char *url;
+};
+
+struct pa_protocol_http {
+ struct pa_module *module;
+ struct pa_core *core;
+ struct pa_socket_server*server;
+ struct pa_idxset *connections;
+};
+
+static void http_response(struct connection *c, int code, const char *msg, const char *mime) {
+ char s[256];
+ assert(c);
+ assert(msg);
+ assert(mime);
+
+ snprintf(s, sizeof(s),
+ "HTTP/1.0 %i %s\n"
+ "Connection: close\n"
+ "Content-Type: %s\n"
+ "\n", code, msg, mime);
+
+ pa_ioline_puts(c->line, s);
+}
+
+static void http_message(struct connection *c, int code, const char *msg, const char *text) {
+ char s[256];
+ assert(c);
+
+ http_response(c, code, msg, "text/html");
+
+ if (!text)
+ text = msg;
+
+ snprintf(s, sizeof(s),
+ "<html><head><title>%s</title></head>\n"
+ "<body>%s</body></html>\n",
+ text, text);
+
+ pa_ioline_puts(c->line, s);
+ pa_ioline_defer_close(c->line);
+}
+
+
+static void connection_free(struct connection *c, int del) {
+ assert(c);
+
+ if (c->url)
+ pa_xfree(c->url);
+
+ if (del)
+ pa_idxset_remove_by_data(c->protocol->connections, c, NULL);
+ pa_ioline_unref(c->line);
+ pa_xfree(c);
+}
+
+static void line_callback(struct pa_ioline *line, const char *s, void *userdata) {
+ struct connection *c = userdata;
+ assert(line);
+ assert(c);
+
+ if (!s) {
+ /* EOF */
+ connection_free(c, 1);
+ return;
+ }
+
+ switch (c->state) {
+ case REQUEST_LINE: {
+ if (memcmp(s, "GET ", 4))
+ goto fail;
+
+ s +=4;
+
+ c->url = pa_xstrndup(s, strcspn(s, " \r\n\t"));
+ c->state = MIME_HEADER;
+ break;
+
+ }
+
+ case MIME_HEADER: {
+
+ /* Ignore MIME headers */
+ if (strcspn(s, " \r\n") != 0)
+ break;
+
+ /* We're done */
+ c->state = DATA;
+
+ pa_log("req for %s\n", c->url);
+
+ if (!strcmp(c->url, URL_ROOT)) {
+ char txt[256];
+ http_response(c, 200, "OK", "text/html");
+
+ pa_ioline_puts(c->line,
+ "<html><head><title>"PACKAGE_NAME" "PACKAGE_VERSION"</title>\n"
+ "<link rel=\"stylesheet\" type=\"text/css\" href=\"style.css\"/></head><body>\n");
+
+ pa_ioline_puts(c->line,
+ "<h1>"PACKAGE_NAME" "PACKAGE_VERSION"</h1>\n"
+ "<h2>Server Information</h2>\n"
+ "<table>");
+
+#define PRINTF_FIELD(a,b) pa_ioline_printf(c->line, "<tr><td><b>%s</b></td><td>%s</td></tr>\n",(a),(b))
+
+ PRINTF_FIELD("User Name:", pa_get_user_name(txt, sizeof(txt)));
+ PRINTF_FIELD("Fully Qualified Domain Name:", pa_get_fqdn(txt, sizeof(txt)));
+ PRINTF_FIELD("Default Sample Specification:", pa_sample_spec_snprint(txt, sizeof(txt), &c->protocol->core->default_sample_spec));
+ PRINTF_FIELD("Default Sink:", pa_namereg_get_default_sink_name(c->protocol->core));
+ PRINTF_FIELD("Default Source:", pa_namereg_get_default_source_name(c->protocol->core));
+ pa_ioline_puts(c->line, "</table>");
+ pa_ioline_puts(c->line, "</body></html>\n");
+
+ pa_ioline_defer_close(c->line);
+ } else if (!strcmp(c->url, URL_CSS)) {
+ http_response(c, 200, "OK", "text/css");
+
+ pa_ioline_puts(c->line,
+ "body { color: black; background-color: white; margin: 0.5cm; }\n"
+ "a:link, a:visited { color: #900000; }\n"
+ "p { margin-left: 0.5cm; margin-right: 0.5cm; }\n"
+ "h1 { color: #00009F; }\n"
+ "h2 { color: #00009F; }\n"
+ "ul { margin-left: .5cm; }\n"
+ "ol { margin-left: .5cm; }\n"
+ "pre { margin-left: .5cm; background-color: #f0f0f0; padding: 0.4cm;}\n"
+ ".grey { color: #afafaf; }\n"
+ "table { margin-left: 1cm; border:1px solid lightgrey; padding: 0.2cm; }\n"
+ "td { padding-left:10px; padding-right:10px; }\n");
+
+ pa_ioline_defer_close(c->line);
+ } else
+ http_message(c, 404, "Not Found", NULL);
+
+ break;
+ }
+
+ default:
+ ;
+ }
+
+ return;
+
+fail:
+ internal_server_error(c);
+}
+
+static void on_connection(struct pa_socket_server*s, struct pa_iochannel *io, void *userdata) {
+ struct pa_protocol_http *p = userdata;
+ struct connection *c;
+ assert(s && io && p);
+
+ if (pa_idxset_ncontents(p->connections)+1 > MAX_CONNECTIONS) {
+ pa_log(__FILE__": Warning! Too many connections (%u), dropping incoming connection.\n", MAX_CONNECTIONS);
+ pa_iochannel_free(io);
+ return;
+ }
+
+ c = pa_xmalloc(sizeof(struct connection));
+ c->protocol = p;
+ c->line = pa_ioline_new(io);
+ c->state = REQUEST_LINE;
+ c->url = NULL;
+
+ pa_ioline_set_callback(c->line, line_callback, c);
+ pa_idxset_put(p->connections, c, NULL);
+}
+
+struct pa_protocol_http* pa_protocol_http_new(struct pa_core *core, struct pa_socket_server *server, struct pa_module *m, struct pa_modargs *ma) {
+ struct pa_protocol_http* p;
+ assert(core && server);
+
+ p = pa_xmalloc(sizeof(struct pa_protocol_http));
+ p->module = m;
+ p->core = core;
+ p->server = server;
+ p->connections = pa_idxset_new(NULL, NULL);
+
+ pa_socket_server_set_callback(p->server, on_connection, p);
+
+ return p;
+}
+
+static void free_connection(void *p, void *userdata) {
+ assert(p);
+ connection_free(p, 0);
+}
+
+void pa_protocol_http_free(struct pa_protocol_http *p) {
+ assert(p);
+
+ pa_idxset_free(p->connections, free_connection, NULL);
+ pa_socket_server_unref(p->server);
+ pa_xfree(p);
+}
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