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Blame examples/simple-httpd.c

c8 c8s master
  1.   696627bbbda3bd3780257f77652a324543efb8ee
  2.   examples
  3.   simple-httpd.c
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/* -*- Mode: C; tab-width: 8; indent-tabs-mode: t; c-basic-offset: 8 -*- */
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/*
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 * Copyright (C) 2001-2003, Ximian, Inc.
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 */
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#include <errno.h>
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#include <stdio.h>
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#include <stdlib.h>
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#include <string.h>
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#include <sys/stat.h>
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#include <libsoup/soup.h>
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#include <glib/gstdio.h>
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static int
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compare_strings (gconstpointer a, gconstpointer b)
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{
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	const char **sa = (const char **)a;
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	const char **sb = (const char **)b;
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	return strcmp (*sa, *sb);
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}
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static GString *
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get_directory_listing (const char *path)
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{
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	GPtrArray *entries;
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	GString *listing;
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	char *escaped;
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	GDir *dir;
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	const gchar *d_name;
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	int i;
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	entries = g_ptr_array_new ();
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	dir = g_dir_open (path, 0, NULL);
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	if (dir) {
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		while ((d_name = g_dir_read_name (dir))) {
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			if (!strcmp (d_name, ".") ||
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			    (!strcmp (d_name, "..") &&
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			     !strcmp (path, "./")))
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				continue;
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			escaped = g_markup_escape_text (d_name, -1);
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			g_ptr_array_add (entries, escaped);
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		}
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		g_dir_close (dir);
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	}
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	g_ptr_array_sort (entries, (GCompareFunc)compare_strings);
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	listing = g_string_new ("<html>\r\n");
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	escaped = g_markup_escape_text (strchr (path, '/'), -1);
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	g_string_append_printf (listing, "<head><title>Index of %s</title></head>\r\n", escaped);
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	g_string_append_printf (listing, "<body>
Index of %s
\r\n
\r\n", escaped);
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	g_free (escaped);
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	for (i = 0; i < entries->len; i++) {
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		g_string_append_printf (listing, "%s
\r\n",
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					(char *)entries->pdata[i],
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					(char *)entries->pdata[i]);
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		g_free (entries->pdata[i]);
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	}
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	g_string_append (listing, "</body>\r\n</html>\r\n");
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	g_ptr_array_free (entries, TRUE);
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	return listing;
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}
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static void
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do_get (SoupServer *server, SoupMessage *msg, const char *path)
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{
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	char *slash;
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	GStatBuf st;
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	if (g_stat (path, &st) == -1) {
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		if (errno == EPERM)
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			soup_message_set_status (msg, SOUP_STATUS_FORBIDDEN);
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		else if (errno == ENOENT)
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			soup_message_set_status (msg, SOUP_STATUS_NOT_FOUND);
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		else
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			soup_message_set_status (msg, SOUP_STATUS_INTERNAL_SERVER_ERROR);
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		return;
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	}
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	if (g_file_test (path, G_FILE_TEST_IS_DIR)) {
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		GString *listing;
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		char *index_path;
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		slash = strrchr (path, '/');
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		if (!slash || slash[1]) {
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			char *redir_uri;
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			redir_uri = g_strdup_printf ("%s/", soup_message_get_uri (msg)->path);
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			soup_message_set_redirect (msg, SOUP_STATUS_MOVED_PERMANENTLY,
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						   redir_uri);
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			g_free (redir_uri);
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			return;
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		}
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		index_path = g_strdup_printf ("%s/index.html", path);
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		if (g_stat (path, &st) != -1) {
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			do_get (server, msg, index_path);
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			g_free (index_path);
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			return;
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		}
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		g_free (index_path);
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		listing = get_directory_listing (path);
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		soup_message_set_response (msg, "text/html",
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					   SOUP_MEMORY_TAKE,
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					   listing->str, listing->len);
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		soup_message_set_status (msg, SOUP_STATUS_OK);
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		g_string_free (listing, FALSE);
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		return;
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	}
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	if (msg->method == SOUP_METHOD_GET) {
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		GMappedFile *mapping;
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		SoupBuffer *buffer;
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		mapping = g_mapped_file_new (path, FALSE, NULL);
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		if (!mapping) {
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			soup_message_set_status (msg, SOUP_STATUS_INTERNAL_SERVER_ERROR);
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			return;
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		}
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		buffer = soup_buffer_new_with_owner (g_mapped_file_get_contents (mapping),
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						     g_mapped_file_get_length (mapping),
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						     mapping, (GDestroyNotify)g_mapped_file_unref);
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		soup_message_body_append_buffer (msg->response_body, buffer);
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		soup_buffer_free (buffer);
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	} else /* msg->method == SOUP_METHOD_HEAD */ {
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		char *length;
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		/* We could just use the same code for both GET and
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		 * HEAD (soup-message-server-io.c will fix things up).
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		 * But we'll optimize and avoid the extra I/O.
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		 */
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		length = g_strdup_printf ("%lu", (gulong)st.st_size);
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		soup_message_headers_append (msg->response_headers,
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					     "Content-Length", length);
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		g_free (length);
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	}
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	soup_message_set_status (msg, SOUP_STATUS_OK);
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}
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static void
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do_put (SoupServer *server, SoupMessage *msg, const char *path)
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{
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	GStatBuf st;
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	FILE *f;
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	gboolean created = TRUE;
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	if (g_stat (path, &st) != -1) {
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		const char *match = soup_message_headers_get_one (msg->request_headers, "If-None-Match");
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		if (match && !strcmp (match, "*")) {
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			soup_message_set_status (msg, SOUP_STATUS_CONFLICT);
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			return;
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		}
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		if (!g_file_test (path, G_FILE_TEST_IS_REGULAR)) {
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			soup_message_set_status (msg, SOUP_STATUS_FORBIDDEN);
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			return;
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		}
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		created = FALSE;
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	}
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	f = fopen (path, "w");
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	if (!f) {
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		soup_message_set_status (msg, SOUP_STATUS_INTERNAL_SERVER_ERROR);
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		return;
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	}
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	fwrite (msg->request_body->data, 1, msg->request_body->length, f);
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	fclose (f);
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	soup_message_set_status (msg, created ? SOUP_STATUS_CREATED : SOUP_STATUS_OK);
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}
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static void
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server_callback (SoupServer *server, SoupMessage *msg,
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		 const char *path, GHashTable *query,
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		 SoupClientContext *context, gpointer data)
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{
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	char *file_path;
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	SoupMessageHeadersIter iter;
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	const char *name, *value;
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	g_print ("%s %s HTTP/1.%d\n", msg->method, path,
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		 soup_message_get_http_version (msg));
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	soup_message_headers_iter_init (&iter, msg->request_headers);
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	while (soup_message_headers_iter_next (&iter, &name, &value))
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		g_print ("%s: %s\n", name, value);
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	if (msg->request_body->length)
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		g_print ("%s\n", msg->request_body->data);
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	file_path = g_strdup_printf (".%s", path);
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	if (msg->method == SOUP_METHOD_GET || msg->method == SOUP_METHOD_HEAD)
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		do_get (server, msg, file_path);
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	else if (msg->method == SOUP_METHOD_PUT)
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		do_put (server, msg, file_path);
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	else
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		soup_message_set_status (msg, SOUP_STATUS_NOT_IMPLEMENTED);
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	g_free (file_path);
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	g_print ("  -> %d %s\n\n", msg->status_code, msg->reason_phrase);
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}
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static void
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quit (int sig)
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{
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	/* Exit cleanly on ^C in case we're valgrinding. */
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	exit (0);
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}
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static int port;
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static const char *tls_cert_file, *tls_key_file;
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static GOptionEntry entries[] = {
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	{ "cert-file", 'c', 0,
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	  G_OPTION_ARG_STRING, &tls_cert_file,
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	  "Use FILE as the TLS certificate file", "FILE" },
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	{ "key-file", 'k', 0,
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	  G_OPTION_ARG_STRING, &tls_key_file,
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	  "Use FILE as the TLS private key file", "FILE" },
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	{ "port", 'p', 0,
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	  G_OPTION_ARG_INT, &port,
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	  "Port to listen on", NULL },
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	{ NULL }
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};
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int
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main (int argc, char **argv)
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{
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	GOptionContext *opts;
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	GMainLoop *loop;
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	SoupServer *server;
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	GSList *uris, *u;
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	char *str;
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	GTlsCertificate *cert;
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	GError *error = NULL;
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	opts = g_option_context_new (NULL);
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	g_option_context_add_main_entries (opts, entries, NULL);
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	if (!g_option_context_parse (opts, &argc, &argv, &error)) {
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		g_printerr ("Could not parse arguments: %s\n",
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			    error->message);
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		g_printerr ("%s",
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			    g_option_context_get_help (opts, TRUE, NULL));
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		exit (1);
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	}
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	if (argc != 1) {
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		g_printerr ("%s",
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			    g_option_context_get_help (opts, TRUE, NULL));
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		exit (1);
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	}
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	g_option_context_free (opts);
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	signal (SIGINT, quit);
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	if (tls_cert_file && tls_key_file) {
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		cert = g_tls_certificate_new_from_files (tls_cert_file, tls_key_file, &error);
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		if (error) {
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			g_printerr ("Unable to create server: %s\n", error->message);
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			exit (1);
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		}
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		server = soup_server_new (SOUP_SERVER_SERVER_HEADER, "simple-httpd ",
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					  SOUP_SERVER_TLS_CERTIFICATE, cert,
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					  NULL);
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		g_object_unref (cert);
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		soup_server_listen_all (server, port, SOUP_SERVER_LISTEN_HTTPS, &error);
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	} else {
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		server = soup_server_new (SOUP_SERVER_SERVER_HEADER, "simple-httpd ",
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					  NULL);
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		soup_server_listen_all (server, port, 0, &error);
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	}
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	soup_server_add_handler (server, NULL,
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				 server_callback, NULL, NULL);
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	uris = soup_server_get_uris (server);
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	for (u = uris; u; u = u->next) {
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		str = soup_uri_to_string (u->data, FALSE);
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		g_print ("Listening on %s\n", str);
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		g_free (str);
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		soup_uri_free (u->data);
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	}
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	g_slist_free (uris);
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	g_print ("\nWaiting for requests...\n");
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	loop = g_main_loop_new (NULL, TRUE);
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	g_main_loop_run (loop);
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	return 0;
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}

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