git-svn-id: https://origsvn.digium.com/svn/asterisk/trunk@112426 65c4cc65-6c06-0410-ace0-fbb531ad65f3
972 lines
25 KiB
C
972 lines
25 KiB
C
/*
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* Asterisk -- An open source telephony toolkit.
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*
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* Copyright (C) 1999 - 2006, Digium, Inc.
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*
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* Mark Spencer <markster@digium.com>
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*
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* See http://www.asterisk.org for more information about
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* the Asterisk project. Please do not directly contact
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* any of the maintainers of this project for assistance;
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* the project provides a web site, mailing lists and IRC
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* channels for your use.
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*
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* This program is free software, distributed under the terms of
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* the GNU General Public License Version 2. See the LICENSE file
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* at the top of the source tree.
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*/
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/*!
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* \file
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* \brief http server for AMI access
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*
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* \author Mark Spencer <markster@digium.com>
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*
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* This program implements a tiny http server
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* and was inspired by micro-httpd by Jef Poskanzer
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*
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* \ref AstHTTP - AMI over the http protocol
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*/
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#include "asterisk.h"
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ASTERISK_FILE_VERSION(__FILE__, "$Revision$")
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#include <time.h>
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#include <sys/time.h>
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#include <sys/stat.h>
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#include <sys/signal.h>
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#include <fcntl.h>
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#include "asterisk/paths.h" /* use ast_config_AST_DATA_DIR */
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#include "asterisk/network.h"
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#include "asterisk/cli.h"
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#include "asterisk/tcptls.h"
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#include "asterisk/http.h"
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#include "asterisk/utils.h"
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#include "asterisk/strings.h"
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#include "asterisk/config.h"
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#include "asterisk/stringfields.h"
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#include "asterisk/ast_version.h"
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#include "asterisk/manager.h"
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#include "asterisk/_private.h"
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#define MAX_PREFIX 80
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/* See http.h for more information about the SSL implementation */
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#if defined(HAVE_OPENSSL) && (defined(HAVE_FUNOPEN) || defined(HAVE_FOPENCOOKIE))
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#define DO_SSL /* comment in/out if you want to support ssl */
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#endif
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static struct ast_tls_config http_tls_cfg;
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static void *httpd_helper_thread(void *arg);
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/*!
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* we have up to two accepting threads, one for http, one for https
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*/
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static struct server_args http_desc = {
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.accept_fd = -1,
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.master = AST_PTHREADT_NULL,
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.tls_cfg = NULL,
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.poll_timeout = -1,
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.name = "http server",
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.accept_fn = ast_tcptls_server_root,
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.worker_fn = httpd_helper_thread,
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};
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static struct server_args https_desc = {
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.accept_fd = -1,
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.master = AST_PTHREADT_NULL,
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.tls_cfg = &http_tls_cfg,
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.poll_timeout = -1,
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.name = "https server",
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.accept_fn = ast_tcptls_server_root,
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.worker_fn = httpd_helper_thread,
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};
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static AST_RWLIST_HEAD_STATIC(uris, ast_http_uri); /*!< list of supported handlers */
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/* all valid URIs must be prepended by the string in prefix. */
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static char prefix[MAX_PREFIX];
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static int enablestatic;
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/*! \brief Limit the kinds of files we're willing to serve up */
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static struct {
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const char *ext;
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const char *mtype;
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} mimetypes[] = {
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{ "png", "image/png" },
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{ "jpg", "image/jpeg" },
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{ "js", "application/x-javascript" },
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{ "wav", "audio/x-wav" },
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{ "mp3", "audio/mpeg" },
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{ "svg", "image/svg+xml" },
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{ "svgz", "image/svg+xml" },
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{ "gif", "image/gif" },
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};
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struct http_uri_redirect {
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AST_LIST_ENTRY(http_uri_redirect) entry;
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char *dest;
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char target[0];
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};
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static AST_RWLIST_HEAD_STATIC(uri_redirects, http_uri_redirect);
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static const char *ftype2mtype(const char *ftype, char *wkspace, int wkspacelen)
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{
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int x;
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if (ftype) {
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for (x = 0; x < ARRAY_LEN(mimetypes); x++) {
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if (!strcasecmp(ftype, mimetypes[x].ext)) {
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return mimetypes[x].mtype;
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}
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}
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}
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snprintf(wkspace, wkspacelen, "text/%s", S_OR(ftype, "plain"));
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return wkspace;
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}
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static struct ast_str *static_callback(struct ast_tcptls_session_instance *ser, const struct ast_http_uri *urih, const char *uri, enum ast_http_method method, struct ast_variable *vars, struct ast_variable *headers, int *status, char **title, int *contentlength)
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{
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char *path;
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char *ftype;
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const char *mtype;
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char wkspace[80];
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struct stat st;
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int len;
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int fd;
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struct timeval tv = ast_tvnow();
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char buf[256];
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struct ast_tm tm;
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/* Yuck. I'm not really sold on this, but if you don't deliver static content it makes your configuration
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substantially more challenging, but this seems like a rather irritating feature creep on Asterisk. */
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if (!enablestatic || ast_strlen_zero(uri)) {
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goto out403;
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}
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/* Disallow any funny filenames at all */
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if ((uri[0] < 33) || strchr("./|~@#$%^&*() \t", uri[0])) {
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goto out403;
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}
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if (strstr(uri, "/..")) {
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goto out403;
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}
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if ((ftype = strrchr(uri, '.'))) {
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ftype++;
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}
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mtype = ftype2mtype(ftype, wkspace, sizeof(wkspace));
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/* Cap maximum length */
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if ((len = strlen(uri) + strlen(ast_config_AST_DATA_DIR) + strlen("/static-http/") + 5) > 1024) {
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goto out403;
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}
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path = alloca(len);
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sprintf(path, "%s/static-http/%s", ast_config_AST_DATA_DIR, uri);
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if (stat(path, &st)) {
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goto out404;
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}
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if (S_ISDIR(st.st_mode)) {
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goto out404;
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}
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if ((fd = open(path, O_RDONLY)) < 0) {
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goto out403;
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}
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ast_strftime(buf, sizeof(buf), "%a, %d %b %Y %H:%M:%S %Z", ast_localtime(&tv, &tm, "GMT"));
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fprintf(ser->f, "HTTP/1.1 200 OK\r\n"
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"Server: Asterisk/%s\r\n"
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"Date: %s\r\n"
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"Connection: close\r\n"
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"Cache-Control: no-cache, no-store\r\n"
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"Content-Length: %d\r\n"
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"Content-type: %s\r\n\r\n",
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ast_get_version(), buf, (int) st.st_size, mtype);
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while ((len = read(fd, buf, sizeof(buf))) > 0) {
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fwrite(buf, 1, len, ser->f);
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}
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close(fd);
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return NULL;
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out404:
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return ast_http_error((*status = 404),
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(*title = ast_strdup("Not Found")),
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NULL, "Nothing to see here. Move along.");
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out403:
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return ast_http_error((*status = 403),
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(*title = ast_strdup("Access Denied")),
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NULL, "Sorry, I cannot let you do that, Dave.");
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}
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static struct ast_str *httpstatus_callback(struct ast_tcptls_session_instance *ser, const struct ast_http_uri *urih, const char *uri, enum ast_http_method method, struct ast_variable *vars, struct ast_variable *headers, int *status, char **title, int *contentlength)
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{
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struct ast_str *out = ast_str_create(512);
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struct ast_variable *v;
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if (out == NULL) {
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return out;
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}
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ast_str_append(&out, 0,
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"\r\n"
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"<title>Asterisk HTTP Status</title>\r\n"
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"<body bgcolor=\"#ffffff\">\r\n"
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"<table bgcolor=\"#f1f1f1\" align=\"center\"><tr><td bgcolor=\"#e0e0ff\" colspan=\"2\" width=\"500\">\r\n"
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"<h2> Asterisk™ HTTP Status</h2></td></tr>\r\n");
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ast_str_append(&out, 0, "<tr><td><i>Prefix</i></td><td><b>%s</b></td></tr>\r\n", prefix);
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ast_str_append(&out, 0, "<tr><td><i>Bind Address</i></td><td><b>%s</b></td></tr>\r\n",
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ast_inet_ntoa(http_desc.oldsin.sin_addr));
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ast_str_append(&out, 0, "<tr><td><i>Bind Port</i></td><td><b>%d</b></td></tr>\r\n",
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ntohs(http_desc.oldsin.sin_port));
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if (http_tls_cfg.enabled) {
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ast_str_append(&out, 0, "<tr><td><i>SSL Bind Port</i></td><td><b>%d</b></td></tr>\r\n",
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ntohs(https_desc.oldsin.sin_port));
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}
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ast_str_append(&out, 0, "<tr><td colspan=\"2\"><hr></td></tr>\r\n");
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for (v = vars; v; v = v->next) {
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if (strncasecmp(v->name, "cookie_", 7)) {
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ast_str_append(&out, 0, "<tr><td><i>Submitted Variable '%s'</i></td><td>%s</td></tr>\r\n", v->name, v->value);
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}
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}
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ast_str_append(&out, 0, "<tr><td colspan=\"2\"><hr></td></tr>\r\n");
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for (v = vars; v; v = v->next) {
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if (!strncasecmp(v->name, "cookie_", 7)) {
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ast_str_append(&out, 0, "<tr><td><i>Cookie '%s'</i></td><td>%s</td></tr>\r\n", v->name, v->value);
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}
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}
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ast_str_append(&out, 0, "</table><center><font size=\"-1\"><i>Asterisk and Digium are registered trademarks of Digium, Inc.</i></font></center></body>\r\n");
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return out;
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}
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static struct ast_http_uri statusuri = {
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.callback = httpstatus_callback,
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.description = "Asterisk HTTP General Status",
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.uri = "httpstatus",
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.supports_get = 1,
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.data = NULL,
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.key = __FILE__,
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};
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static struct ast_http_uri staticuri = {
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.callback = static_callback,
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.description = "Asterisk HTTP Static Delivery",
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.uri = "static",
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.has_subtree = 1,
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.static_content = 1,
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.supports_get = 1,
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.data = NULL,
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.key= __FILE__,
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};
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struct ast_str *ast_http_error(int status, const char *title, const char *extra_header, const char *text)
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{
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struct ast_str *out = ast_str_create(512);
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if (out == NULL) {
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return out;
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}
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ast_str_set(&out, 0,
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"Content-type: text/html\r\n"
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"%s"
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"\r\n"
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"<!DOCTYPE HTML PUBLIC \"-//IETF//DTD HTML 2.0//EN\">\r\n"
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"<html><head>\r\n"
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"<title>%d %s</title>\r\n"
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"</head><body>\r\n"
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"<h1>%s</h1>\r\n"
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"<p>%s</p>\r\n"
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"<hr />\r\n"
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"<address>Asterisk Server</address>\r\n"
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"</body></html>\r\n",
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(extra_header ? extra_header : ""), status, title, title, text);
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return out;
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}
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/*! \brief
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* Link the new uri into the list.
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*
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* They are sorted by length of
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* the string, not alphabetically. Duplicate entries are not replaced,
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* but the insertion order (using <= and not just <) makes sure that
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* more recent insertions hide older ones.
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* On a lookup, we just scan the list and stop at the first matching entry.
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*/
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int ast_http_uri_link(struct ast_http_uri *urih)
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{
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struct ast_http_uri *uri;
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int len = strlen(urih->uri);
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if (!(urih->supports_get || urih->supports_post)) {
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ast_log(LOG_WARNING, "URI handler does not provide either GET or POST method: %s (%s)\n", urih->uri, urih->description);
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return -1;
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}
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AST_RWLIST_WRLOCK(&uris);
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if (AST_RWLIST_EMPTY(&uris) || strlen(AST_RWLIST_FIRST(&uris)->uri) <= len) {
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AST_RWLIST_INSERT_HEAD(&uris, urih, entry);
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AST_RWLIST_UNLOCK(&uris);
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return 0;
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}
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AST_RWLIST_TRAVERSE(&uris, uri, entry) {
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if (AST_RWLIST_NEXT(uri, entry) &&
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strlen(AST_RWLIST_NEXT(uri, entry)->uri) <= len) {
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AST_RWLIST_INSERT_AFTER(&uris, uri, urih, entry);
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AST_RWLIST_UNLOCK(&uris);
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return 0;
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}
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}
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AST_RWLIST_INSERT_TAIL(&uris, urih, entry);
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AST_RWLIST_UNLOCK(&uris);
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return 0;
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}
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|
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void ast_http_uri_unlink(struct ast_http_uri *urih)
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{
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AST_RWLIST_WRLOCK(&uris);
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AST_RWLIST_REMOVE(&uris, urih, entry);
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AST_RWLIST_UNLOCK(&uris);
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}
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void ast_http_uri_unlink_all_with_key(const char *key)
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{
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struct ast_http_uri *urih;
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AST_RWLIST_WRLOCK(&uris);
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AST_RWLIST_TRAVERSE_SAFE_BEGIN(&uris, urih, entry) {
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if (!strcmp(urih->key, key)) {
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AST_RWLIST_REMOVE_CURRENT(entry);
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}
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}
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AST_RWLIST_TRAVERSE_SAFE_END
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}
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|
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static struct ast_str *handle_uri(struct ast_tcptls_session_instance *ser, char *uri, enum ast_http_method method,
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int *status, char **title, int *contentlength, struct ast_variable **cookies, struct ast_variable *headers,
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unsigned int *static_content)
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{
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char *c;
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struct ast_str *out = NULL;
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char *params = uri;
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struct ast_http_uri *urih = NULL;
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int l;
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struct ast_variable *vars = NULL, *v, *prev = NULL;
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struct http_uri_redirect *redirect;
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int saw_method = 0;
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|
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/* preserve previous behavior of only support URI parameters on GET requests */
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if (method == AST_HTTP_GET) {
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strsep(¶ms, "?");
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|
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/* Extract arguments from the request and store them in variables. */
|
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if (params) {
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char *var, *val;
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|
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while ((val = strsep(¶ms, "&"))) {
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var = strsep(&val, "=");
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if (val) {
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ast_uri_decode(val);
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} else {
|
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val = "";
|
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}
|
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ast_uri_decode(var);
|
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if ((v = ast_variable_new(var, val, ""))) {
|
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if (vars) {
|
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prev->next = v;
|
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} else {
|
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vars = v;
|
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}
|
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prev = v;
|
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}
|
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}
|
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}
|
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}
|
|
|
|
/*
|
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* Append the cookies to the variables (the only reason to have them
|
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* at the end is to avoid another pass of the cookies list to find
|
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* the tail).
|
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*/
|
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if (prev) {
|
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prev->next = *cookies;
|
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} else {
|
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vars = *cookies;
|
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}
|
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*cookies = NULL;
|
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|
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ast_uri_decode(uri);
|
|
|
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AST_RWLIST_RDLOCK(&uri_redirects);
|
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AST_RWLIST_TRAVERSE(&uri_redirects, redirect, entry) {
|
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if (!strcasecmp(uri, redirect->target)) {
|
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char buf[512];
|
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|
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snprintf(buf, sizeof(buf), "Location: %s\r\n", redirect->dest);
|
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out = ast_http_error((*status = 302),
|
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(*title = ast_strdup("Moved Temporarily")),
|
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buf, "There is no spoon...");
|
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|
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break;
|
|
}
|
|
}
|
|
AST_RWLIST_UNLOCK(&uri_redirects);
|
|
|
|
if (redirect) {
|
|
goto cleanup;
|
|
}
|
|
|
|
/* We want requests to start with the (optional) prefix and '/' */
|
|
l = strlen(prefix);
|
|
if (!strncasecmp(uri, prefix, l) && uri[l] == '/') {
|
|
uri += l + 1;
|
|
/* scan registered uris to see if we match one. */
|
|
AST_RWLIST_RDLOCK(&uris);
|
|
AST_RWLIST_TRAVERSE(&uris, urih, entry) {
|
|
if (!saw_method) {
|
|
switch (method) {
|
|
case AST_HTTP_GET:
|
|
if (urih->supports_get) {
|
|
saw_method = 1;
|
|
}
|
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break;
|
|
case AST_HTTP_POST:
|
|
if (urih->supports_post) {
|
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saw_method = 1;
|
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}
|
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break;
|
|
}
|
|
}
|
|
|
|
l = strlen(urih->uri);
|
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c = uri + l; /* candidate */
|
|
|
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if (strncasecmp(urih->uri, uri, l) || /* no match */
|
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(*c && *c != '/')) { /* substring */
|
|
continue;
|
|
}
|
|
|
|
if (*c == '/') {
|
|
c++;
|
|
}
|
|
|
|
if (!*c || urih->has_subtree) {
|
|
if (((method == AST_HTTP_GET) && urih->supports_get) ||
|
|
((method == AST_HTTP_POST) && urih->supports_post)) {
|
|
uri = c;
|
|
|
|
break;
|
|
}
|
|
}
|
|
}
|
|
|
|
if (!urih) {
|
|
AST_RWLIST_UNLOCK(&uris);
|
|
}
|
|
}
|
|
|
|
if (urih) {
|
|
*static_content = urih->static_content;
|
|
out = urih->callback(ser, urih, uri, method, vars, headers, status, title, contentlength);
|
|
AST_RWLIST_UNLOCK(&uris);
|
|
} else if (saw_method) {
|
|
out = ast_http_error((*status = 404),
|
|
(*title = ast_strdup("Not Found")), NULL,
|
|
"The requested URL was not found on this server.");
|
|
} else {
|
|
out = ast_http_error((*status = 501),
|
|
(*title = ast_strdup("Not Implemented")), NULL,
|
|
"Attempt to use unimplemented / unsupported method");
|
|
}
|
|
|
|
cleanup:
|
|
ast_variables_destroy(vars);
|
|
|
|
return out;
|
|
}
|
|
|
|
#ifdef DO_SSL
|
|
#if defined(HAVE_FUNOPEN)
|
|
#define HOOK_T int
|
|
#define LEN_T int
|
|
#else
|
|
#define HOOK_T ssize_t
|
|
#define LEN_T size_t
|
|
#endif
|
|
|
|
/*!
|
|
* replacement read/write functions for SSL support.
|
|
* We use wrappers rather than SSL_read/SSL_write directly so
|
|
* we can put in some debugging.
|
|
*/
|
|
/*static HOOK_T ssl_read(void *cookie, char *buf, LEN_T len)
|
|
{
|
|
int i = SSL_read(cookie, buf, len-1);
|
|
#if 0
|
|
if (i >= 0)
|
|
buf[i] = '\0';
|
|
ast_verbose("ssl read size %d returns %d <%s>\n", (int)len, i, buf);
|
|
#endif
|
|
return i;
|
|
}
|
|
|
|
static HOOK_T ssl_write(void *cookie, const char *buf, LEN_T len)
|
|
{
|
|
#if 0
|
|
char *s = alloca(len+1);
|
|
strncpy(s, buf, len);
|
|
s[len] = '\0';
|
|
ast_verbose("ssl write size %d <%s>\n", (int)len, s);
|
|
#endif
|
|
return SSL_write(cookie, buf, len);
|
|
}
|
|
|
|
static int ssl_close(void *cookie)
|
|
{
|
|
close(SSL_get_fd(cookie));
|
|
SSL_shutdown(cookie);
|
|
SSL_free(cookie);
|
|
return 0;
|
|
}*/
|
|
#endif /* DO_SSL */
|
|
|
|
static void *httpd_helper_thread(void *data)
|
|
{
|
|
char buf[4096];
|
|
char cookie[4096];
|
|
struct ast_tcptls_session_instance *ser = data;
|
|
struct ast_variable *var, *prev=NULL, *vars=NULL, *headers = NULL;
|
|
char *uri, *title=NULL;
|
|
int status = 200, contentlength = 0;
|
|
struct ast_str *out = NULL;
|
|
unsigned int static_content = 0;
|
|
|
|
if (!fgets(buf, sizeof(buf), ser->f)) {
|
|
goto done;
|
|
}
|
|
|
|
uri = ast_skip_nonblanks(buf); /* Skip method */
|
|
if (*uri) {
|
|
*uri++ = '\0';
|
|
}
|
|
|
|
uri = ast_skip_blanks(uri); /* Skip white space */
|
|
|
|
if (*uri) { /* terminate at the first blank */
|
|
char *c = ast_skip_nonblanks(uri);
|
|
|
|
if (*c) {
|
|
*c = '\0';
|
|
}
|
|
}
|
|
|
|
/* process "Cookie: " lines */
|
|
while (fgets(cookie, sizeof(cookie), ser->f)) {
|
|
char *vname, *vval;
|
|
int l;
|
|
|
|
/* Trim trailing characters */
|
|
ast_trim_blanks(cookie);
|
|
if (ast_strlen_zero(cookie)) {
|
|
break;
|
|
}
|
|
if (strncasecmp(cookie, "Cookie: ", 8)) {
|
|
char *name, *value;
|
|
|
|
value = ast_strdupa(cookie);
|
|
name = strsep(&value, ":");
|
|
if (!value) {
|
|
continue;
|
|
}
|
|
value = ast_skip_blanks(value);
|
|
if (ast_strlen_zero(value)) {
|
|
continue;
|
|
}
|
|
var = ast_variable_new(name, value, "");
|
|
if (!var) {
|
|
continue;
|
|
}
|
|
var->next = headers;
|
|
headers = var;
|
|
|
|
continue;
|
|
}
|
|
|
|
/* TODO - The cookie parsing code below seems to work
|
|
in IE6 and FireFox 1.5. However, it is not entirely
|
|
correct, and therefore may not work in all
|
|
circumstances.
|
|
For more details see RFC 2109 and RFC 2965 */
|
|
|
|
/* FireFox cookie strings look like:
|
|
Cookie: mansession_id="********"
|
|
InternetExplorer's look like:
|
|
Cookie: $Version="1"; mansession_id="********" */
|
|
|
|
/* If we got a FireFox cookie string, the name's right
|
|
after "Cookie: " */
|
|
vname = ast_skip_blanks(cookie + 8);
|
|
|
|
/* If we got an IE cookie string, we need to skip to
|
|
past the version to get to the name */
|
|
if (*vname == '$') {
|
|
strsep(&vname, ";");
|
|
if (!vname) { /* no name ? */
|
|
continue;
|
|
}
|
|
vname = ast_skip_blanks(vname);
|
|
}
|
|
if (!(vval = strchr(vname, '='))) {
|
|
continue;
|
|
}
|
|
/* Ditch the = and the quotes */
|
|
*vval++ = '\0';
|
|
if (*vval) {
|
|
vval++;
|
|
}
|
|
if ((l = strlen(vval))) {
|
|
vval[l - 1] = '\0'; /* trim trailing quote */
|
|
}
|
|
if ((var = ast_variable_new(vname, vval, ""))) {
|
|
if (prev)
|
|
prev->next = var;
|
|
else
|
|
vars = var;
|
|
prev = var;
|
|
}
|
|
}
|
|
|
|
if (!*uri) {
|
|
out = ast_http_error(400, "Bad Request", NULL, "Invalid Request");
|
|
} else if (strcasecmp(buf, "post") && strcasecmp(buf, "get")) {
|
|
out = ast_http_error(501, "Not Implemented", NULL,
|
|
"Attempt to use unimplemented / unsupported method");
|
|
} else { /* try to serve it */
|
|
out = handle_uri(ser, uri, (!strcasecmp(buf, "get")) ? AST_HTTP_GET : AST_HTTP_POST,
|
|
&status, &title, &contentlength, &vars, headers, &static_content);
|
|
}
|
|
|
|
/* If they aren't mopped up already, clean up the cookies */
|
|
if (vars) {
|
|
ast_variables_destroy(vars);
|
|
}
|
|
/* Clean up all the header information pulled as well */
|
|
if (headers) {
|
|
ast_variables_destroy(headers);
|
|
}
|
|
|
|
if (out) {
|
|
struct timeval tv = ast_tvnow();
|
|
char timebuf[256];
|
|
struct ast_tm tm;
|
|
|
|
ast_strftime(timebuf, sizeof(timebuf), "%a, %d %b %Y %H:%M:%S %Z", ast_localtime(&tv, &tm, "GMT"));
|
|
fprintf(ser->f,
|
|
"HTTP/1.1 %d %s\r\n"
|
|
"Server: Asterisk/%s\r\n"
|
|
"Date: %s\r\n"
|
|
"Connection: close\r\n"
|
|
"%s",
|
|
status, title ? title : "OK", ast_get_version(), timebuf,
|
|
static_content ? "" : "Cache-Control: no-cache, no-store\r\n");
|
|
/* We set the no-cache headers only for dynamic content.
|
|
* If you want to make sure the static file you requested is not from cache,
|
|
* append a random variable to your GET request. Ex: 'something.html?r=109987734'
|
|
*/
|
|
if (!contentlength) { /* opaque body ? just dump it hoping it is properly formatted */
|
|
fprintf(ser->f, "%s", out->str);
|
|
} else {
|
|
char *tmp = strstr(out->str, "\r\n\r\n");
|
|
|
|
if (tmp) {
|
|
fprintf(ser->f, "Content-length: %d\r\n", contentlength);
|
|
/* first write the header, then the body */
|
|
fwrite(out->str, 1, (tmp + 4 - out->str), ser->f);
|
|
fwrite(tmp + 4, 1, contentlength, ser->f);
|
|
}
|
|
}
|
|
ast_free(out);
|
|
}
|
|
|
|
if (title) {
|
|
ast_free(title);
|
|
}
|
|
|
|
done:
|
|
fclose(ser->f);
|
|
ser = ast_tcptls_session_instance_destroy(ser);
|
|
|
|
return NULL;
|
|
}
|
|
|
|
/*!
|
|
* \brief Add a new URI redirect
|
|
* The entries in the redirect list are sorted by length, just like the list
|
|
* of URI handlers.
|
|
*/
|
|
static void add_redirect(const char *value)
|
|
{
|
|
char *target, *dest;
|
|
struct http_uri_redirect *redirect, *cur;
|
|
unsigned int target_len;
|
|
unsigned int total_len;
|
|
|
|
dest = ast_strdupa(value);
|
|
dest = ast_skip_blanks(dest);
|
|
target = strsep(&dest, " ");
|
|
target = ast_skip_blanks(target);
|
|
target = strsep(&target, " "); /* trim trailing whitespace */
|
|
|
|
if (!dest) {
|
|
ast_log(LOG_WARNING, "Invalid redirect '%s'\n", value);
|
|
return;
|
|
}
|
|
|
|
target_len = strlen(target) + 1;
|
|
total_len = sizeof(*redirect) + target_len + strlen(dest) + 1;
|
|
|
|
if (!(redirect = ast_calloc(1, total_len))) {
|
|
return;
|
|
}
|
|
|
|
redirect->dest = redirect->target + target_len;
|
|
strcpy(redirect->target, target);
|
|
strcpy(redirect->dest, dest);
|
|
|
|
AST_RWLIST_WRLOCK(&uri_redirects);
|
|
|
|
target_len--; /* So we can compare directly with strlen() */
|
|
if (AST_RWLIST_EMPTY(&uri_redirects)
|
|
|| strlen(AST_RWLIST_FIRST(&uri_redirects)->target) <= target_len) {
|
|
AST_RWLIST_INSERT_HEAD(&uri_redirects, redirect, entry);
|
|
AST_RWLIST_UNLOCK(&uri_redirects);
|
|
|
|
return;
|
|
}
|
|
|
|
AST_RWLIST_TRAVERSE(&uri_redirects, cur, entry) {
|
|
if (AST_RWLIST_NEXT(cur, entry)
|
|
&& strlen(AST_RWLIST_NEXT(cur, entry)->target) <= target_len) {
|
|
AST_RWLIST_INSERT_AFTER(&uri_redirects, cur, redirect, entry);
|
|
AST_RWLIST_UNLOCK(&uri_redirects);
|
|
|
|
return;
|
|
}
|
|
}
|
|
|
|
AST_RWLIST_INSERT_TAIL(&uri_redirects, redirect, entry);
|
|
|
|
AST_RWLIST_UNLOCK(&uri_redirects);
|
|
}
|
|
|
|
static int __ast_http_load(int reload)
|
|
{
|
|
struct ast_config *cfg;
|
|
struct ast_variable *v;
|
|
int enabled=0;
|
|
int newenablestatic=0;
|
|
struct hostent *hp;
|
|
struct ast_hostent ahp;
|
|
char newprefix[MAX_PREFIX] = "";
|
|
int have_sslbindaddr = 0;
|
|
struct http_uri_redirect *redirect;
|
|
struct ast_flags config_flags = { reload ? CONFIG_FLAG_FILEUNCHANGED : 0 };
|
|
|
|
if ((cfg = ast_config_load2("http.conf", "http", config_flags)) == CONFIG_STATUS_FILEUNCHANGED) {
|
|
return 0;
|
|
}
|
|
|
|
/* default values */
|
|
memset(&http_desc.sin, 0, sizeof(http_desc.sin));
|
|
http_desc.sin.sin_port = htons(8088);
|
|
|
|
memset(&https_desc.sin, 0, sizeof(https_desc.sin));
|
|
https_desc.sin.sin_port = htons(8089);
|
|
|
|
http_tls_cfg.enabled = 0;
|
|
if (http_tls_cfg.certfile) {
|
|
ast_free(http_tls_cfg.certfile);
|
|
}
|
|
http_tls_cfg.certfile = ast_strdup(AST_CERTFILE);
|
|
if (http_tls_cfg.cipher) {
|
|
ast_free(http_tls_cfg.cipher);
|
|
}
|
|
http_tls_cfg.cipher = ast_strdup("");
|
|
|
|
AST_RWLIST_WRLOCK(&uri_redirects);
|
|
while ((redirect = AST_RWLIST_REMOVE_HEAD(&uri_redirects, entry))) {
|
|
ast_free(redirect);
|
|
}
|
|
AST_RWLIST_UNLOCK(&uri_redirects);
|
|
|
|
if (cfg) {
|
|
v = ast_variable_browse(cfg, "general");
|
|
for (; v; v = v->next) {
|
|
if (!strcasecmp(v->name, "enabled")) {
|
|
enabled = ast_true(v->value);
|
|
} else if (!strcasecmp(v->name, "sslenable")) {
|
|
http_tls_cfg.enabled = ast_true(v->value);
|
|
} else if (!strcasecmp(v->name, "sslbindport")) {
|
|
https_desc.sin.sin_port = htons(atoi(v->value));
|
|
} else if (!strcasecmp(v->name, "sslcert")) {
|
|
ast_free(http_tls_cfg.certfile);
|
|
http_tls_cfg.certfile = ast_strdup(v->value);
|
|
} else if (!strcasecmp(v->name, "sslcipher")) {
|
|
ast_free(http_tls_cfg.cipher);
|
|
http_tls_cfg.cipher = ast_strdup(v->value);
|
|
} else if (!strcasecmp(v->name, "enablestatic")) {
|
|
newenablestatic = ast_true(v->value);
|
|
} else if (!strcasecmp(v->name, "bindport")) {
|
|
http_desc.sin.sin_port = htons(atoi(v->value));
|
|
} else if (!strcasecmp(v->name, "sslbindaddr")) {
|
|
if ((hp = ast_gethostbyname(v->value, &ahp))) {
|
|
memcpy(&https_desc.sin.sin_addr, hp->h_addr, sizeof(https_desc.sin.sin_addr));
|
|
have_sslbindaddr = 1;
|
|
} else {
|
|
ast_log(LOG_WARNING, "Invalid bind address '%s'\n", v->value);
|
|
}
|
|
} else if (!strcasecmp(v->name, "bindaddr")) {
|
|
if ((hp = ast_gethostbyname(v->value, &ahp))) {
|
|
memcpy(&http_desc.sin.sin_addr, hp->h_addr, sizeof(http_desc.sin.sin_addr));
|
|
} else {
|
|
ast_log(LOG_WARNING, "Invalid bind address '%s'\n", v->value);
|
|
}
|
|
} else if (!strcasecmp(v->name, "prefix")) {
|
|
if (!ast_strlen_zero(v->value)) {
|
|
newprefix[0] = '/';
|
|
ast_copy_string(newprefix + 1, v->value, sizeof(newprefix) - 1);
|
|
} else {
|
|
newprefix[0] = '\0';
|
|
}
|
|
} else if (!strcasecmp(v->name, "redirect")) {
|
|
add_redirect(v->value);
|
|
} else {
|
|
ast_log(LOG_WARNING, "Ignoring unknown option '%s' in http.conf\n", v->name);
|
|
}
|
|
}
|
|
|
|
ast_config_destroy(cfg);
|
|
}
|
|
|
|
if (!have_sslbindaddr) {
|
|
https_desc.sin.sin_addr = http_desc.sin.sin_addr;
|
|
}
|
|
if (enabled) {
|
|
http_desc.sin.sin_family = https_desc.sin.sin_family = AF_INET;
|
|
}
|
|
if (strcmp(prefix, newprefix)) {
|
|
ast_copy_string(prefix, newprefix, sizeof(prefix));
|
|
}
|
|
enablestatic = newenablestatic;
|
|
ast_tcptls_server_start(&http_desc);
|
|
if (ast_ssl_setup(https_desc.tls_cfg)) {
|
|
ast_tcptls_server_start(&https_desc);
|
|
}
|
|
|
|
return 0;
|
|
}
|
|
|
|
static char *handle_show_http(struct ast_cli_entry *e, int cmd, struct ast_cli_args *a)
|
|
{
|
|
struct ast_http_uri *urih;
|
|
struct http_uri_redirect *redirect;
|
|
|
|
switch (cmd) {
|
|
case CLI_INIT:
|
|
e->command = "http show status";
|
|
e->usage =
|
|
"Usage: http show status\n"
|
|
" Lists status of internal HTTP engine\n";
|
|
return NULL;
|
|
case CLI_GENERATE:
|
|
return NULL;
|
|
}
|
|
|
|
if (a->argc != 3) {
|
|
return CLI_SHOWUSAGE;
|
|
}
|
|
ast_cli(a->fd, "HTTP Server Status:\n");
|
|
ast_cli(a->fd, "Prefix: %s\n", prefix);
|
|
if (!http_desc.oldsin.sin_family) {
|
|
ast_cli(a->fd, "Server Disabled\n\n");
|
|
} else {
|
|
ast_cli(a->fd, "Server Enabled and Bound to %s:%d\n\n",
|
|
ast_inet_ntoa(http_desc.oldsin.sin_addr),
|
|
ntohs(http_desc.oldsin.sin_port));
|
|
if (http_tls_cfg.enabled) {
|
|
ast_cli(a->fd, "HTTPS Server Enabled and Bound to %s:%d\n\n",
|
|
ast_inet_ntoa(https_desc.oldsin.sin_addr),
|
|
ntohs(https_desc.oldsin.sin_port));
|
|
}
|
|
}
|
|
|
|
ast_cli(a->fd, "Enabled URI's:\n");
|
|
AST_RWLIST_RDLOCK(&uris);
|
|
if (AST_RWLIST_EMPTY(&uris)) {
|
|
ast_cli(a->fd, "None.\n");
|
|
} else {
|
|
AST_RWLIST_TRAVERSE(&uris, urih, entry) {
|
|
ast_cli(a->fd, "%s/%s%s => %s\n", prefix, urih->uri, (urih->has_subtree ? "/..." : ""), urih->description);
|
|
}
|
|
}
|
|
AST_RWLIST_UNLOCK(&uris);
|
|
|
|
ast_cli(a->fd, "\nEnabled Redirects:\n");
|
|
AST_RWLIST_RDLOCK(&uri_redirects);
|
|
AST_RWLIST_TRAVERSE(&uri_redirects, redirect, entry) {
|
|
ast_cli(a->fd, " %s => %s\n", redirect->target, redirect->dest);
|
|
}
|
|
if (AST_RWLIST_EMPTY(&uri_redirects)) {
|
|
ast_cli(a->fd, " None.\n");
|
|
}
|
|
AST_RWLIST_UNLOCK(&uri_redirects);
|
|
|
|
return CLI_SUCCESS;
|
|
}
|
|
|
|
int ast_http_reload(void)
|
|
{
|
|
return __ast_http_load(1);
|
|
}
|
|
|
|
static struct ast_cli_entry cli_http[] = {
|
|
AST_CLI_DEFINE(handle_show_http, "Display HTTP server status"),
|
|
};
|
|
|
|
int ast_http_init(void)
|
|
{
|
|
ast_http_uri_link(&statusuri);
|
|
ast_http_uri_link(&staticuri);
|
|
ast_cli_register_multiple(cli_http, sizeof(cli_http) / sizeof(struct ast_cli_entry));
|
|
|
|
return __ast_http_load(0);
|
|
}
|