This makes a start on the LibWebSockets WebServer.
The app cmake build support and JSON config parsing are implemented and
the app can start, create the vhosts, listen and serve file:// mounts on
them.
Signed-off-by: Andy Green <andy@warmcat.com>
option(LWS_SSL_SERVER_WITH_ECDH_CERT "Include SSL server use ECDH certificate" OFF)
option(LWS_WITH_CGI "Include CGI (spawn process with network-connected stdin/out/err) APIs" OFF)
option(LWS_WITH_HTTP_PROXY "Support for rewriting HTTP proxying" OFF)
-
+option(LWS_WITH_LWSWS "Libwebsockets Webserver" ON)
if (DEFINED YOTTA_WEBSOCKETS_VERSION_STRING)
set(LWS_MAX_SMP 1)
endif()
+
+if (LWS_WITHOUT_SERVER)
+set(LWS_WITH_LWSWS OFF)
+endif()
+
if (LWS_WITH_HTTP_PROXY AND (LWS_WITHOUT_CLIENT OR LWS_WITHOUT_SERVER))
message(FATAL_ERROR "You have to enable both client and server for http proxy")
endif()
endif()
endif(NOT LWS_WITHOUT_TESTAPPS)
+if (LWS_WITH_LWSWS)
+ list(APPEND LWSWS_SRCS
+ "lwsws/main.c"
+ "lwsws/lejp.c"
+ "lwsws/conf.c"
+ "lwsws/http.c"
+ )
+
+ if (WIN32)
+ list(APPEND LWSWS_SRCS
+ ${WIN32_HELPERS_PATH}/getopt.c
+ ${WIN32_HELPERS_PATH}/getopt_long.c
+ ${WIN32_HELPERS_PATH}/gettimeofday.c
+ )
+
+ list(APPEND LWSWS_HDR
+ ${WIN32_HELPERS_PATH}/getopt.h
+ ${WIN32_HELPERS_PATH}/gettimeofday.h
+ )
+ endif(WIN32)
+
+ source_group("Headers Private" FILES ${LWSWS_HDR})
+ source_group("Sources" FILES ${LWSWS_SRCS})
+ add_executable("lwsws" ${LWSWS_SRCS} ${LWSWS_HDR})
+
+ if (LWS_LINK_TESTAPPS_DYNAMIC)
+ if (NOT LWS_WITH_SHARED)
+ message(FATAL_ERROR "Build of the shared library is disabled. LWS_LINK_TESTAPPS_DYNAMIC must be combined with LWS_WITH_SHARED.")
+ endif()
+ target_link_libraries("lwsws" websockets_shared)
+ add_dependencies("lwsws" websockets_shared)
+ else()
+ if (NOT LWS_WITH_STATIC)
+ message(FATAL_ERROR "Build of the static library is disabled. Disabled LWS_LINK_TESTAPPS_DYNAMIC must be combined with LWS_WITH_STATIC.")
+ endif()
+ target_link_libraries("lwsws" websockets)
+ add_dependencies("lwsws" websockets)
+ endif()
+
+ # Set test app specific defines.
+ set_property(TARGET "lwsws"
+ PROPERTY COMPILE_DEFINITIONS
+ INSTALL_DATADIR="${CMAKE_INSTALL_PREFIX}/share"
+ )
+
+
+endif (LWS_WITH_LWSWS)
+
if (UNIX)
# Generate documentation.
# TODO: Fix this on Windows.
set(CPACK_COMPONENT_EXAMPLES_DISPLAY_NAME "Example files")
endif()
+# lwsws
+if (LWS_WITH_LWSWS)
+ install(TARGETS lwsws
+ RUNTIME DESTINATION "${LWS_INSTALL_BIN_DIR}" COMPONENT lwsws )
+endif()
+
# Programs shared files used by the test-server.
if (NOT LWS_WITHOUT_TESTAPPS AND NOT LWS_WITHOUT_SERVER)
install(FILES ${TEST_SERVER_DATA}
- test-server/*.c
- test-server/*.h
+
+4) lwsws (Libwebsocket web server) is a bundled application that is not
+part of the libwebsockets library, it's a separate application that uses
+the library. The related sources are in a separate directory. If you don't
+distribute lwsws, you do not need to observe its license.
+
+ - lwsws/lejp.c - LGPL2.1
+ - lwsws/lejp.h - LGPL2.1
+ - lwsws/[all else] - GPL2.1
+
GNU LESSER GENERAL PUBLIC LICENSE
--- /dev/null
+Libwebsockets Web Server
+------------------------
+
+lwsws is an implementation of a very lightweight, ws-capable generic web
+server, which uses libwebsockets to implement everything underneath.
+
+Configuration
+-------------
+
+lwsws uses JSON config files, there is a single file intended for global
+settings
+
+/etc/lwsws/conf
+
+```
+# these are the server global settings
+# stuff related to vhosts should go in one
+# file per vhost in ../conf.d/
+
+{
+ "global": {
+ "uid": "99",
+ "gid": "99",
+ "interface": "eth0",
+ "count-threads": "1",
+ "init-ssl": "yes"
+ }
+}
+```
+
+and a config directory intended to take one file per vhost
+
+/etc/lwsws/conf.d/warmcat.com
+
+```
+{
+ "vhosts": [{
+ "name": "warmcat.com",
+ "port": "443",
+ "host-ssl-key": "/etc/pki/tls/private/warmcat.com.key",
+ "host-ssl-cert": "/etc/pki/tls/certs/warmcat.com.crt",
+ "host-ssl-ca": "/etc/pki/tls/certs/warmcat.com.cer",
+ "mounts": [{
+ "mountpoint": "/",
+ "origin": "file:///var/www/warmcat.com",
+ "default": "index.html"
+ }]
+ }]
+}
+```
+
+Vhosts
+------
+
+One server can run many vhosts, where SSL is in use SNI is used to match
+the connection to a vhost and its vhost-specific SSL keys during SSL
+negotiation.
+
+Listing multiple vhosts looks something like this
+
+```
+{
+ "vhosts": [{
+ "name": "warmcat.com",
+ "port": "443",
+ "host-ssl-key": "/etc/pki/tls/private/warmcat.com.key",
+ "host-ssl-cert": "/etc/pki/tls/certs/warmcat.com.crt",
+ "host-ssl-ca": "/etc/pki/tls/certs/warmcat.com.cer",
+ "mounts": [{
+ "mountpoint": "/",
+ "origin": "file:///var/www/warmcat.com",
+ "default": "index.html"
+ }]
+ }, {
+ "name": "warmcat2.com",
+ "port": "443",
+ "host-ssl-key": "/etc/pki/tls/private/warmcat.com.key",
+ "host-ssl-cert": "/etc/pki/tls/certs/warmcat.com.crt",
+ "host-ssl-ca": "/etc/pki/tls/certs/warmcat.com.cer",
+ "mounts": [{
+ "mountpoint": "/",
+ "origin": "file:///var/www/warmcat2.com",
+ "default": "index.html"
+ }]
+ }
+]
+}
+```
+
+Vhost name and port
+-------------------
+
+The vhost name field is used to match on incoming SNI or Host: header, so it
+must always be the host name used to reach the vhost externally.
+
+Vhosts may have the same name and different ports, these will each create a
+listening socket on the appropriate port, and they may have the same port and
+different name: these will be treated as true vhosts on one listening socket
+and the active vhost decided at SSL negotiation time (via SNI) or if no SSL,
+then after the Host: header from the client has been parsed.
+
+
+Mounts
+------
+
+Where mounts are given in the vhost definition, then directory contents may
+be auto-served if it matches the mountpoint.
+
+Currently only file:// mount protocol and a fixed set of mimetypes are
+supported.
\ No newline at end of file
connections to the server listen port are accepted and receive a 301
redirect to / on the same host and port using https://
+New application lwsws
+---------------------
+
+A libwebsockets-based general webserver is built by default now, lwsws.
+
+It's configured by JSON, by default in
+
+ /etc/lwsws/conf
+
+which contains global lws context settings like this
+
+{
+ "global": {
+ "uid": "99",
+ "gid": "99",
+ "interface": "eth0",
+ "count-threads": "1"
+ }
+}
+
+ /etc/lwsws/conf.d/*
+
+which contains zero or more files describing vhosts, like this
+
+{
+ "vhosts": [
+ { "name": "warmcat.com",
+ "port": "443",
+ "host-ssl-key": "/etc/pki/tls/private/warmcat.com.key",
+ "host-ssl-cert": "/etc/pki/tls/certs/warmcat.com.crt",
+ "host-ssl-ca": "/etc/pki/tls/certs/warmcat.com.cer",
+ "mounts": [
+ { "/": [
+ { "home": "file:///var/www/warmcat.com" },
+ { "default": "index.html" }
+ ]
+ }
+ ]
+ }
+ ]
+}
+
+
v1.7.0
======
--- /dev/null
+/*
+ * libwebsockets web server application
+ *
+ * Copyright (C) 2010-2016 Andy Green <andy@warmcat.com>
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public
+ * License as published by the Free Software Foundation:
+ * version 2.1 of the License.
+ *
+ * This library 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 General Public
+ * License along with this library; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston,
+ * MA 02110-1301 USA
+ */
+
+#include "lwsws.h"
+
+static const char * const paths_global[] = {
+ "global.uid",
+ "global.gid",
+ "global.interface",
+ "global.count-threads",
+ "global.init-ssl",
+};
+
+enum lejp_global_paths {
+ LEJPGP_UID,
+ LEJPGP_GID,
+ LEJPGP_INTERFACE,
+ LEJPGP_COUNT_THREADS,
+ LWJPGP_INIT_SSL,
+};
+
+static const char * const paths_vhosts[] = {
+ "vhosts[]",
+ "vhosts[].mounts[]",
+ "vhosts[].name",
+ "vhosts[].port",
+ "vhosts[].host-ssl-key",
+ "vhosts[].host-ssl-cert",
+ "vhosts[].host-ssl-ca",
+ "vhosts[].mounts[].mountpoint",
+ "vhosts[].mounts[].origin",
+ "vhosts[].mounts[].default"
+};
+
+enum lejp_vhost_paths {
+ LEJPVP,
+ LEJPVP_MOUNTS,
+ LEJPVP_NAME,
+ LEJPVP_PORT,
+ LEJPVP_HOST_SSL_KEY,
+ LEJPVP_HOST_SSL_CERT,
+ LEJPVP_HOST_SSL_CA,
+ LEJPVP_MOUNTPOINT,
+ LEJPVP_ORIGIN,
+ LEJPVP_DEFAULT,
+};
+
+struct jpargs {
+ struct lws_context_creation_info *info;
+ struct lws_context *context;
+ const struct lws_protocols *protocols;
+ const struct lws_extension *extensions;
+ char *p, *end, valid;
+ struct lws_http_mount *head, *last;
+ char *mountpoint, *origin, *def;
+};
+
+static int arg_to_bool(const char *s)
+{
+ static const char * const on[] = { "on", "yes", "true" };
+ int n = atoi(s);
+
+ if (n)
+ return 1;
+
+ for (n = 0; n < ARRAY_SIZE(on); n++)
+ if (!strcasecmp(s, on[n]))
+ return 1;
+
+ return 0;
+}
+
+static char
+lejp_globals_cb(struct lejp_ctx *ctx, char reason)
+{
+ struct jpargs *a = (struct jpargs *)ctx->user;
+
+ /* we only match on the prepared path strings */
+ if (!(reason & LEJP_FLAG_CB_IS_VALUE) || !ctx->path_match)
+ return 0;
+
+ switch (ctx->path_match - 1) {
+ case LEJPGP_UID:
+ a->info->uid = atoi(ctx->buf);
+ return 0;
+ case LEJPGP_GID:
+ a->info->gid = atoi(ctx->buf);
+ return 0;
+ case LEJPGP_INTERFACE:
+ a->info->iface = a->p;
+ break;
+ case LEJPGP_COUNT_THREADS:
+ a->info->count_threads = atoi(ctx->buf);
+ return 0;
+ case LWJPGP_INIT_SSL:
+ if (arg_to_bool(ctx->buf))
+ a->info->options |= LWS_SERVER_OPTION_DO_SSL_GLOBAL_INIT;
+ return 0;
+
+ default:
+ return 0;
+ }
+
+ a->p += snprintf(a->p, a->end - a->p, "%s", ctx->buf);
+
+ return 0;
+}
+
+static char
+lejp_vhosts_cb(struct lejp_ctx *ctx, char reason)
+{
+ struct jpargs *a = (struct jpargs *)ctx->user;
+ struct lws_http_mount *m;
+ int n;
+
+ if (reason == LEJPCB_OBJECT_START && ctx->path_match == LEJPVP + 1) {
+ a->valid = 1;
+ a->head = NULL;
+ a->last = NULL;
+ a->info->port = 0;
+ a->info->iface = NULL;
+ a->info->protocols = a->protocols;
+ a->info->extensions = a->extensions;
+ a->info->ssl_cert_filepath = NULL;
+ a->info->ssl_private_key_filepath = NULL;
+ a->info->ssl_ca_filepath = NULL;
+ a->info->timeout_secs = 5;
+ a->info->ssl_cipher_list = "ECDHE-ECDSA-AES256-GCM-SHA384:"
+ "ECDHE-RSA-AES256-GCM-SHA384:"
+ "DHE-RSA-AES256-GCM-SHA384:"
+ "ECDHE-RSA-AES256-SHA384:"
+ "HIGH:!aNULL:!eNULL:!EXPORT:"
+ "!DES:!MD5:!PSK:!RC4:!HMAC_SHA1:"
+ "!SHA1:!DHE-RSA-AES128-GCM-SHA256:"
+ "!DHE-RSA-AES128-SHA256:"
+ "!AES128-GCM-SHA256:"
+ "!AES128-SHA256:"
+ "!DHE-RSA-AES256-SHA256:"
+ "!AES256-GCM-SHA384:"
+ "!AES256-SHA256";
+ }
+
+ if (reason == LEJPCB_OBJECT_START &&
+ ctx->path_match == LEJPVP_MOUNTS + 1) {
+ a->mountpoint = NULL;
+ a->origin = NULL;
+ a->def = NULL;
+ }
+
+ if (reason == LEJPCB_OBJECT_END &&
+ (ctx->path_match == LEJPVP + 1 || !ctx->path[0]) &&
+ a->valid) {
+
+ //lwsl_notice("%s\n", ctx->path);
+ if (!a->info->port) {
+ lwsl_err("Port required (eg, 443)");
+ return 1;
+ }
+ a->valid = 0;
+
+ if (!lws_create_vhost(a->context, a->info, a->head)) {
+ lwsl_err("Failed to create vhost %s\n",
+ a->info->vhost_name);
+ return 1;
+ }
+
+ return 0;
+ }
+
+ if (reason == LEJPCB_OBJECT_END &&
+ ctx->path_match == LEJPVP_MOUNTS + 1) {
+ if (!a->mountpoint || !a->origin) {
+ lwsl_err("mountpoint and origin required\n");
+ return 1;
+ }
+
+ n = lws_write_http_mount(a->last, &m, a->p, a->mountpoint,
+ a->origin, a->def);
+ if (!n)
+ return 1;
+ a->p += n;
+ if (!a->head)
+ a->head = m;
+
+ a->last = m;
+ }
+
+ /* we only match on the prepared path strings */
+ if (!(reason & LEJP_FLAG_CB_IS_VALUE) || !ctx->path_match)
+ return 0;
+
+ switch (ctx->path_match - 1) {
+ case LEJPVP_NAME:
+ a->info->vhost_name = a->p;
+ break;
+ case LEJPVP_PORT:
+ a->info->port = atoi(ctx->buf);
+ return 0;
+ case LEJPVP_HOST_SSL_KEY:
+ a->info->ssl_private_key_filepath = a->p;
+ break;
+ case LEJPVP_HOST_SSL_CERT:
+ a->info->ssl_cert_filepath = a->p;
+ break;
+ case LEJPVP_HOST_SSL_CA:
+ a->info->ssl_ca_filepath = a->p;
+ break;
+ case LEJPVP_MOUNTPOINT:
+ a->mountpoint = a->p;
+ break;
+ case LEJPVP_ORIGIN:
+ a->origin = a->p;
+ break;
+ case LEJPVP_DEFAULT:
+ a->def = a->p;
+ break;
+ default:
+ return 0;
+ }
+
+ a->p += snprintf(a->p, a->end - a->p, "%s", ctx->buf);
+ *(a->p)++ = '\0';
+
+ return 0;
+}
+
+/*
+ * returns 0 = OK, 1 = can't open, 2 = parsing error
+ */
+
+static int
+lwsws_get_config(void *user, const char *f, const char * const *paths,
+ int count_paths, lejp_callback cb)
+{
+ unsigned char buf[128];
+ struct lejp_ctx ctx;
+ int n, m, fd;
+
+ fd = open(f, O_RDONLY);
+ if (fd < 0) {
+ lwsl_err("Cannot open %s\n", f);
+ return 1;
+ }
+ lwsl_info("%s: %s\n", __func__, f);
+ lejp_construct(&ctx, cb, user, paths, count_paths);
+
+ do {
+ n = read(fd, buf, sizeof(buf));
+ if (!n)
+ break;
+
+ m = (int)(char)lejp_parse(&ctx, buf, n);
+ } while (m == LEJP_CONTINUE);
+
+ close(fd);
+ n = ctx.line;
+ lejp_destruct(&ctx);
+
+ if (m < 0) {
+ lwsl_err("%s(%u): parsing error %d\n", f, n, m);
+ return 2;
+ }
+
+ return 0;
+}
+
+#ifndef _WIN32
+static int filter(const struct dirent *ent)
+{
+ if (!strcmp(ent->d_name, ".") || !strcmp(ent->d_name, ".."))
+ return 0;
+
+ return 1;
+}
+#endif
+
+static int
+lwsws_get_config_d(void *user, const char *d, const char * const *paths,
+ int count_paths, lejp_callback cb)
+{
+#ifndef _WIN32
+ struct dirent **namelist;
+ char path[256];
+ int n, i, ret = 0;
+
+ n = scandir(d, &namelist, filter, alphasort);
+ if (n < 0) {
+ lwsl_err("Scandir on %d failed\n", d);
+ }
+
+ for (i = 0; i < n; i++) {
+ snprintf(path, sizeof(path) - 1, "%s/%s", d,
+ namelist[i]->d_name);
+ ret = lwsws_get_config(user, path, paths, count_paths, cb);
+ if (ret) {
+ while (i++ < n)
+ free(namelist[i]);
+ goto bail;
+ }
+ free(namelist[i]);
+ }
+
+bail:
+ free(namelist);
+
+ return ret;
+#else
+ return 0;
+#endif
+}
+
+int
+lwsws_get_config_globals(struct lws_context_creation_info *info, const char *d,
+ char **cs, int *len)
+{
+ struct jpargs a;
+
+ a.info = info;
+ a.p = *cs;
+ a.end = a.p + *len;
+ a.valid = 0;
+
+ if (lwsws_get_config(&a, "/etc/lwsws/conf", paths_global,
+ ARRAY_SIZE(paths_global), lejp_globals_cb) > 1)
+ return 1;
+ if (lwsws_get_config_d(&a, d, paths_global,
+ ARRAY_SIZE(paths_global), lejp_globals_cb) > 1)
+ return 1;
+
+ *cs = a.p;
+ *len = a.end - a.p;
+
+ return 0;
+}
+
+int
+lwsws_get_config_vhosts(struct lws_context *context,
+ struct lws_context_creation_info *info, const char *d,
+ char **cs, int *len)
+{
+ struct jpargs a;
+
+ a.info = info;
+ a.p = *cs;
+ a.end = a.p + *len;
+ a.valid = 0;
+ a.context = context;
+ a.protocols = info->protocols;
+ a.extensions = info->extensions;
+
+ if (lwsws_get_config(&a, "/etc/lwsws/conf", paths_vhosts,
+ ARRAY_SIZE(paths_vhosts), lejp_vhosts_cb) > 1)
+ return 1;
+ if (lwsws_get_config_d(&a, d, paths_vhosts,
+ ARRAY_SIZE(paths_vhosts), lejp_vhosts_cb) > 1)
+ return 1;
+
+ *cs = a.p;
+ *len = a.end - a.p;
+
+ lws_finalize_startup(context);
+
+ return 0;
+}
--- /dev/null
+/*
+ * libwebsockets web server application
+ *
+ * Copyright (C) 2010-2016 Andy Green <andy@warmcat.com>
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public
+ * License as published by the Free Software Foundation:
+ * version 2.1 of the License.
+ *
+ * This library 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 General Public
+ * License along with this library; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston,
+ * MA 02110-1301 USA
+ */
+#include "lwsws.h"
+
+/* http server gets files from this path */
+#define LOCAL_RESOURCE_PATH INSTALL_DATADIR"/libwebsockets-test-server"
+char *resource_path = LOCAL_RESOURCE_PATH;
+
+
+
+/*
+ * We take a strict whitelist approach to stop ../ attacks
+ */
+struct serveable {
+ const char *urlpath;
+ const char *mimetype;
+};
+
+const char * get_mimetype(const char *file)
+{
+ int n = strlen(file);
+
+ if (n < 5)
+ return NULL;
+
+ if (!strcmp(&file[n - 4], ".ico"))
+ return "image/x-icon";
+
+ if (!strcmp(&file[n - 4], ".png"))
+ return "image/png";
+
+ if (!strcmp(&file[n - 5], ".html"))
+ return "text/html";
+
+ if (!strcmp(&file[n - 4], ".css"))
+ return "text/css";
+
+ return NULL;
+}
+
+/* this protocol server (always the first one) handles HTTP,
+ *
+ * Some misc callbacks that aren't associated with a protocol also turn up only
+ * here on the first protocol server.
+ */
+
+int callback_http(struct lws *wsi, enum lws_callback_reasons reason, void *user,
+ void *in, size_t len)
+{
+ struct per_session_data__http *pss =
+ (struct per_session_data__http *)user;
+ unsigned char buffer[4096 + LWS_PRE];
+ unsigned long amount, file_len, sent;
+ char leaf_path[1024];
+ const char *mimetype;
+ char *other_headers;
+ unsigned char *end;
+ struct timeval tv;
+ unsigned char *p;
+#ifndef LWS_NO_CLIENT
+ struct per_session_data__http *pss1;
+ struct lws *wsi1;
+#endif
+ char buf[256];
+ char b64[64];
+ int n, m;
+#ifdef EXTERNAL_POLL
+ struct lws_pollargs *pa = (struct lws_pollargs *)in;
+#endif
+
+// lwsl_err("%s: reason %d\n", __func__, reason);
+
+ switch (reason) {
+ case LWS_CALLBACK_HTTP:
+
+ {
+ char name[100], rip[50];
+ lws_get_peer_addresses(wsi, lws_get_socket_fd(wsi), name,
+ sizeof(name), rip, sizeof(rip));
+ sprintf(buf, "%s (%s)", name, rip);
+ lwsl_notice("HTTP connect from %s\n", buf);
+ }
+
+ if (len < 1) {
+ lws_return_http_status(wsi,
+ HTTP_STATUS_BAD_REQUEST, NULL);
+ goto try_to_reuse;
+ }
+
+#ifndef LWS_NO_CLIENT
+ if (!strncmp(in, "/proxytest", 10)) {
+ struct lws_client_connect_info i;
+ char *rootpath = "/";
+ const char *p = (const char *)in;
+
+ if (lws_get_child(wsi))
+ break;
+
+ pss->client_finished = 0;
+ memset(&i,0, sizeof(i));
+ i.context = lws_get_context(wsi);
+ i.address = "git.libwebsockets.org";
+ i.port = 80;
+ i.ssl_connection = 0;
+ if (p[10])
+ i.path = (char *)in + 10;
+ else
+ i.path = rootpath;
+ i.host = "git.libwebsockets.org";
+ i.origin = NULL;
+ i.method = "GET";
+ i.parent_wsi = wsi;
+ i.uri_replace_from = "git.libwebsockets.org/";
+ i.uri_replace_to = "/proxytest/";
+ if (!lws_client_connect_via_info(&i)) {
+ lwsl_err("proxy connect fail\n");
+ break;
+ }
+
+
+
+ break;
+ }
+#endif
+
+#if 1
+ /* this example server has no concept of directories */
+ if (strchr((const char *)in + 1, '/')) {
+ lws_return_http_status(wsi, HTTP_STATUS_FORBIDDEN, NULL);
+ goto try_to_reuse;
+ }
+#endif
+
+#ifdef LWS_WITH_CGI
+ if (!strncmp(in, "/cgitest", 8)) {
+ static char *cmd[] = {
+ "/bin/sh",
+ "-c",
+ INSTALL_DATADIR"/libwebsockets-test-server/lws-cgi-test.sh",
+// "/var/www/cgi-bin/cgit",
+ NULL
+ };
+
+ lwsl_notice("%s: cgitest\n", __func__);
+ n = lws_cgi(wsi, cmd, 8, 5);
+ if (n) {
+ lwsl_err("%s: cgi failed\n");
+ return -1;
+ }
+ p = buffer + LWS_PRE;
+ end = p + sizeof(buffer) - LWS_PRE;
+
+ if (lws_add_http_header_status(wsi, 200, &p, end))
+ return 1;
+ if (lws_add_http_header_by_token(wsi, WSI_TOKEN_CONNECTION,
+ (unsigned char *)"close", 5, &p, end))
+ return 1;
+ n = lws_write(wsi, buffer + LWS_PRE,
+ p - (buffer + LWS_PRE),
+ LWS_WRITE_HTTP_HEADERS);
+
+ /* the cgi starts by outputting headers, we can't
+ * finalize the headers until we see the end of that
+ */
+
+ break;
+ }
+#endif
+
+ /* if a legal POST URL, let it continue and accept data */
+ if (lws_hdr_total_length(wsi, WSI_TOKEN_POST_URI))
+ return 0;
+
+ /* check for the "send a big file by hand" example case */
+
+ if (!strcmp((const char *)in, "/leaf.jpg")) {
+ if (strlen(resource_path) > sizeof(leaf_path) - 10)
+ return -1;
+ sprintf(leaf_path, "%s/leaf.jpg", resource_path);
+
+ /* well, let's demonstrate how to send the hard way */
+
+ p = buffer + LWS_PRE;
+ end = p + sizeof(buffer) - LWS_PRE;
+
+ pss->fd = lws_plat_file_open(wsi, leaf_path, &file_len,
+ LWS_O_RDONLY);
+
+ if (pss->fd == LWS_INVALID_FILE) {
+ lwsl_err("faild to open file %s\n", leaf_path);
+ return -1;
+ }
+
+ /*
+ * we will send a big jpeg file, but it could be
+ * anything. Set the Content-Type: appropriately
+ * so the browser knows what to do with it.
+ *
+ * Notice we use the APIs to build the header, which
+ * will do the right thing for HTTP 1/1.1 and HTTP2
+ * depending on what connection it happens to be working
+ * on
+ */
+ if (lws_add_http_header_status(wsi, 200, &p, end))
+ return 1;
+ if (lws_add_http_header_by_token(wsi, WSI_TOKEN_HTTP_SERVER,
+ (unsigned char *)"libwebsockets",
+ 13, &p, end))
+ return 1;
+ if (lws_add_http_header_by_token(wsi,
+ WSI_TOKEN_HTTP_CONTENT_TYPE,
+ (unsigned char *)"image/jpeg",
+ 10, &p, end))
+ return 1;
+ if (lws_add_http_header_content_length(wsi,
+ file_len, &p,
+ end))
+ return 1;
+ if (lws_finalize_http_header(wsi, &p, end))
+ return 1;
+
+ /*
+ * send the http headers...
+ * this won't block since it's the first payload sent
+ * on the connection since it was established
+ * (too small for partial)
+ *
+ * Notice they are sent using LWS_WRITE_HTTP_HEADERS
+ * which also means you can't send body too in one step,
+ * this is mandated by changes in HTTP2
+ */
+
+ *p = '\0';
+ lwsl_info("%s\n", buffer + LWS_PRE);
+
+ n = lws_write(wsi, buffer + LWS_PRE,
+ p - (buffer + LWS_PRE),
+ LWS_WRITE_HTTP_HEADERS);
+ if (n < 0) {
+ lws_plat_file_close(wsi, pss->fd);
+ return -1;
+ }
+ /*
+ * book us a LWS_CALLBACK_HTTP_WRITEABLE callback
+ */
+ lws_callback_on_writable(wsi);
+ break;
+ }
+
+ /* if not, send a file the easy way */
+ if (!strncmp(in, "/cgit-data/", 11)) {
+ in = (char *)in + 11;
+ strcpy(buf, "/usr/share/cgit");
+ } else
+ strcpy(buf, resource_path);
+
+ if (strcmp(in, "/")) {
+ if (*((const char *)in) != '/')
+ strcat(buf, "/");
+ strncat(buf, in, sizeof(buf) - strlen(buf) - 1);
+ } else /* default file to serve */
+ strcat(buf, "/test.html");
+ buf[sizeof(buf) - 1] = '\0';
+
+ /* refuse to serve files we don't understand */
+ mimetype = get_mimetype(buf);
+ if (!mimetype) {
+ lwsl_err("Unknown mimetype for %s\n", buf);
+ lws_return_http_status(wsi,
+ HTTP_STATUS_UNSUPPORTED_MEDIA_TYPE, NULL);
+ return -1;
+ }
+
+ /* demonstrates how to set a cookie on / */
+
+ other_headers = leaf_path;
+ p = (unsigned char *)leaf_path;
+ if (!strcmp((const char *)in, "/") &&
+ !lws_hdr_total_length(wsi, WSI_TOKEN_HTTP_COOKIE)) {
+ /* this isn't very unguessable but it'll do for us */
+ gettimeofday(&tv, NULL);
+ n = sprintf(b64, "test=LWS_%u_%u_COOKIE;Max-Age=360000",
+ (unsigned int)tv.tv_sec,
+ (unsigned int)tv.tv_usec);
+
+ if (lws_add_http_header_by_name(wsi,
+ (unsigned char *)"set-cookie:",
+ (unsigned char *)b64, n, &p,
+ (unsigned char *)leaf_path + sizeof(leaf_path)))
+ return 1;
+ }
+ if (lws_is_ssl(wsi) && lws_add_http_header_by_name(wsi,
+ (unsigned char *)
+ "Strict-Transport-Security:",
+ (unsigned char *)
+ "max-age=15768000 ; "
+ "includeSubDomains", 36, &p,
+ (unsigned char *)leaf_path +
+ sizeof(leaf_path)))
+ return 1;
+ n = (char *)p - leaf_path;
+
+ n = lws_serve_http_file(wsi, buf, mimetype, other_headers, n);
+ if (n < 0 || ((n > 0) && lws_http_transaction_completed(wsi)))
+ return -1; /* error or can't reuse connection: close the socket */
+
+ /*
+ * notice that the sending of the file completes asynchronously,
+ * we'll get a LWS_CALLBACK_HTTP_FILE_COMPLETION callback when
+ * it's done
+ */
+ break;
+
+ case LWS_CALLBACK_HTTP_BODY:
+ strncpy(buf, in, 20);
+ buf[20] = '\0';
+ if (len < 20)
+ buf[len] = '\0';
+
+ lwsl_notice("LWS_CALLBACK_HTTP_BODY: %s... len %d\n",
+ (const char *)buf, (int)len);
+
+ break;
+
+ case LWS_CALLBACK_HTTP_BODY_COMPLETION:
+ lwsl_notice("LWS_CALLBACK_HTTP_BODY_COMPLETION\n");
+ /* the whole of the sent body arrived, close or reuse the connection */
+ lws_return_http_status(wsi, HTTP_STATUS_OK, NULL);
+ goto try_to_reuse;
+
+ case LWS_CALLBACK_HTTP_FILE_COMPLETION:
+ goto try_to_reuse;
+
+ case LWS_CALLBACK_HTTP_WRITEABLE:
+ lwsl_info("LWS_CALLBACK_HTTP_WRITEABLE\n");
+
+ if (pss->client_finished)
+ return -1;
+
+ if (pss->fd == LWS_INVALID_FILE)
+ goto try_to_reuse;
+#ifdef LWS_WITH_CGI
+ if (pss->reason_bf & 1) {
+ if (lws_cgi_write_split_stdout_headers(wsi) < 0)
+ goto bail;
+
+ pss->reason_bf &= ~1;
+ break;
+ }
+#endif
+#ifndef LWS_NO_CLIENT
+ if (pss->reason_bf & 2) {
+ char *px = buf + LWS_PRE;
+ int lenx = sizeof(buf) - LWS_PRE;
+ /*
+ * our sink is writeable and our source has something
+ * to read. So read a lump of source material of
+ * suitable size to send or what's available, whichever
+ * is the smaller.
+ */
+ pss->reason_bf &= ~2;
+ wsi1 = lws_get_child(wsi);
+ if (!wsi1)
+ break;
+ if (lws_http_client_read(wsi1, &px, &lenx) < 0)
+ goto bail;
+
+ if (pss->client_finished)
+ return -1;
+ break;
+ }
+#endif
+ /*
+ * we can send more of whatever it is we were sending
+ */
+ sent = 0;
+ do {
+ /* we'd like the send this much */
+ n = sizeof(buffer) - LWS_PRE;
+
+ /* but if the peer told us he wants less, we can adapt */
+ m = lws_get_peer_write_allowance(wsi);
+
+ /* -1 means not using a protocol that has this info */
+ if (m == 0)
+ /* right now, peer can't handle anything */
+ goto later;
+
+ if (m != -1 && m < n)
+ /* he couldn't handle that much */
+ n = m;
+
+ n = lws_plat_file_read(wsi, pss->fd,
+ &amount, buffer + LWS_PRE, n);
+ /* problem reading, close conn */
+ if (n < 0) {
+ lwsl_err("problem reading file\n");
+ goto bail;
+ }
+ n = (int)amount;
+ /* sent it all, close conn */
+ if (n == 0)
+ goto penultimate;
+ /*
+ * To support HTTP2, must take care about preamble space
+ *
+ * identification of when we send the last payload frame
+ * is handled by the library itself if you sent a
+ * content-length header
+ */
+ m = lws_write(wsi, buffer + LWS_PRE, n, LWS_WRITE_HTTP);
+ if (m < 0) {
+ lwsl_err("write failed\n");
+ /* write failed, close conn */
+ goto bail;
+ }
+ if (m) /* while still active, extend timeout */
+ lws_set_timeout(wsi, PENDING_TIMEOUT_HTTP_CONTENT, 5);
+ sent += m;
+
+ } while (!lws_send_pipe_choked(wsi) && (sent < 1024 * 1024));
+later:
+ lws_callback_on_writable(wsi);
+ break;
+penultimate:
+ lws_plat_file_close(wsi, pss->fd);
+ pss->fd = LWS_INVALID_FILE;
+ goto try_to_reuse;
+
+bail:
+ lws_plat_file_close(wsi, pss->fd);
+
+ return -1;
+
+ /*
+ * callback for confirming to continue with client IP appear in
+ * protocol 0 callback since no websocket protocol has been agreed
+ * yet. You can just ignore this if you won't filter on client IP
+ * since the default unhandled callback return is 0 meaning let the
+ * connection continue.
+ */
+ case LWS_CALLBACK_FILTER_NETWORK_CONNECTION:
+ /* if we returned non-zero from here, we kill the connection */
+ break;
+
+#ifndef LWS_NO_CLIENT
+ case LWS_CALLBACK_ESTABLISHED_CLIENT_HTTP: {
+ char ctype[64], ctlen = 0;
+ lwsl_err("LWS_CALLBACK_ESTABLISHED_CLIENT_HTTP\n");
+ p = buffer + LWS_PRE;
+ end = p + sizeof(buffer) - LWS_PRE;
+ if (lws_add_http_header_status(lws_get_parent(wsi), 200, &p, end))
+ return 1;
+ if (lws_add_http_header_by_token(lws_get_parent(wsi),
+ WSI_TOKEN_HTTP_SERVER,
+ (unsigned char *)"libwebsockets",
+ 13, &p, end))
+ return 1;
+
+ ctlen = lws_hdr_copy(wsi, ctype, sizeof(ctype), WSI_TOKEN_HTTP_CONTENT_TYPE);
+ if (ctlen > 0) {
+ if (lws_add_http_header_by_token(lws_get_parent(wsi),
+ WSI_TOKEN_HTTP_CONTENT_TYPE,
+ (unsigned char *)ctype, ctlen, &p, end))
+ return 1;
+ }
+#if 0
+ if (lws_add_http_header_content_length(lws_get_parent(wsi),
+ file_len, &p, end))
+ return 1;
+#endif
+ if (lws_finalize_http_header(lws_get_parent(wsi), &p, end))
+ return 1;
+
+ *p = '\0';
+ lwsl_info("%s\n", buffer + LWS_PRE);
+
+ n = lws_write(lws_get_parent(wsi), buffer + LWS_PRE,
+ p - (buffer + LWS_PRE),
+ LWS_WRITE_HTTP_HEADERS);
+ if (n < 0)
+ return -1;
+
+ break; }
+ case LWS_CALLBACK_CLOSED_CLIENT_HTTP:
+ //lwsl_err("LWS_CALLBACK_CLOSED_CLIENT_HTTP\n");
+ return -1;
+ break;
+ case LWS_CALLBACK_RECEIVE_CLIENT_HTTP:
+ //lwsl_err("LWS_CALLBACK_RECEIVE_CLIENT_HTTP: wsi %p\n", wsi);
+ assert(lws_get_parent(wsi));
+ if (!lws_get_parent(wsi))
+ break;
+ // lwsl_err("LWS_CALLBACK_RECEIVE_CLIENT_HTTP: wsi %p: sock: %d, parent_wsi: %p, parent_sock:%d, len %d\n",
+ // wsi, lws_get_socket_fd(wsi),
+ // lws_get_parent(wsi),
+ // lws_get_socket_fd(lws_get_parent(wsi)), len);
+ pss1 = lws_wsi_user(lws_get_parent(wsi));
+ pss1->reason_bf |= 2;
+ lws_callback_on_writable(lws_get_parent(wsi));
+ break;
+ case LWS_CALLBACK_RECEIVE_CLIENT_HTTP_READ:
+ //lwsl_err("LWS_CALLBACK_RECEIVE_CLIENT_HTTP_READ len %d\n", len);
+ assert(lws_get_parent(wsi));
+ m = lws_write(lws_get_parent(wsi), (unsigned char *)in,
+ len, LWS_WRITE_HTTP);
+ if (m < 0)
+ return -1;
+ break;
+ case LWS_CALLBACK_COMPLETED_CLIENT_HTTP:
+ //lwsl_err("LWS_CALLBACK_COMPLETED_CLIENT_HTTP\n");
+ assert(lws_get_parent(wsi));
+ if (!lws_get_parent(wsi))
+ break;
+ pss1 = lws_wsi_user(lws_get_parent(wsi));
+ pss1->client_finished = 1;
+ break;
+#endif
+
+#ifdef LWS_WITH_CGI
+ /* CGI IO events (POLLIN/OUT) appear here our demo user code policy is
+ *
+ * - POST data goes on subprocess stdin
+ * - subprocess stdout goes on http via writeable callback
+ * - subprocess stderr goes to the logs
+ */
+ case LWS_CALLBACK_CGI:
+ pss->args = *((struct lws_cgi_args *)in);
+ //lwsl_notice("LWS_CALLBACK_CGI: ch %d\n", pss->args.ch);
+ switch (pss->args.ch) { /* which of stdin/out/err ? */
+ case LWS_STDIN:
+ /* TBD stdin rx flow control */
+ break;
+ case LWS_STDOUT:
+ pss->reason_bf |= 1;
+ /* when writing to MASTER would not block */
+ lws_callback_on_writable(wsi);
+ break;
+ case LWS_STDERR:
+ n = read(lws_get_socket_fd(pss->args.stdwsi[LWS_STDERR]),
+ buf, 127);
+ //lwsl_notice("stderr reads %d\n", n);
+ if (n > 0) {
+ if (buf[n - 1] != '\n')
+ buf[n++] = '\n';
+ buf[n] = '\0';
+ lwsl_notice("CGI-stderr: %s\n", buf);
+ }
+ break;
+ }
+ break;
+
+ case LWS_CALLBACK_CGI_TERMINATED:
+ //lwsl_notice("LWS_CALLBACK_CGI_TERMINATED\n");
+ /* because we sent on openended http, close the connection */
+ return -1;
+
+ case LWS_CALLBACK_CGI_STDIN_DATA: /* POST body for stdin */
+ //lwsl_notice("LWS_CALLBACK_CGI_STDIN_DATA\n");
+ pss->args = *((struct lws_cgi_args *)in);
+ n = write(lws_get_socket_fd(pss->args.stdwsi[LWS_STDIN]),
+ pss->args.data, pss->args.len);
+ //lwsl_notice("LWS_CALLBACK_CGI_STDIN_DATA: write says %d", n);
+ if (n < pss->args.len)
+ lwsl_notice("LWS_CALLBACK_CGI_STDIN_DATA: sent %d only %d went",
+ n, pss->args.len);
+ return n;
+#endif
+
+ /*
+ * callbacks for managing the external poll() array appear in
+ * protocol 0 callback
+ */
+
+ case LWS_CALLBACK_LOCK_POLL:
+ /*
+ * lock mutex to protect pollfd state
+ * called before any other POLL related callback
+ * if protecting wsi lifecycle change, len == 1
+ */
+ test_server_lock(len);
+ break;
+
+ case LWS_CALLBACK_UNLOCK_POLL:
+ /*
+ * unlock mutex to protect pollfd state when
+ * called after any other POLL related callback
+ * if protecting wsi lifecycle change, len == 1
+ */
+ test_server_unlock(len);
+ break;
+
+#ifdef EXTERNAL_POLL
+ case LWS_CALLBACK_ADD_POLL_FD:
+
+ if (count_pollfds >= max_poll_elements) {
+ lwsl_err("LWS_CALLBACK_ADD_POLL_FD: too many sockets to track\n");
+ return 1;
+ }
+
+ fd_lookup[pa->fd] = count_pollfds;
+ pollfds[count_pollfds].fd = pa->fd;
+ pollfds[count_pollfds].events = pa->events;
+ pollfds[count_pollfds++].revents = 0;
+ break;
+
+ case LWS_CALLBACK_DEL_POLL_FD:
+ if (!--count_pollfds)
+ break;
+ m = fd_lookup[pa->fd];
+ /* have the last guy take up the vacant slot */
+ pollfds[m] = pollfds[count_pollfds];
+ fd_lookup[pollfds[count_pollfds].fd] = m;
+ break;
+
+ case LWS_CALLBACK_CHANGE_MODE_POLL_FD:
+ pollfds[fd_lookup[pa->fd]].events = pa->events;
+ break;
+#endif
+
+ case LWS_CALLBACK_GET_THREAD_ID:
+ /*
+ * if you will call "lws_callback_on_writable"
+ * from a different thread, return the caller thread ID
+ * here so lws can use this information to work out if it
+ * should signal the poll() loop to exit and restart early
+ */
+
+ /* return pthread_getthreadid_np(); */
+
+ break;
+
+ default:
+ break;
+ }
+
+ return 0;
+
+ /* if we're on HTTP1.1 or 2.0, will keep the idle connection alive */
+try_to_reuse:
+ if (lws_http_transaction_completed(wsi))
+ return -1;
+
+ return 0;
+}
--- /dev/null
+/*
+ * Lightweight Embedded JSON Parser
+ *
+ * Copyright (C) 2013 Andy Green <andy@warmcat.com>
+ * This code is licensed under LGPL 2.1
+ * http://www.gnu.org/licenses/lgpl-2.1.html
+ */
+
+#include <string.h>
+#include "lejp.h"
+
+#include <stdio.h>
+
+/**
+ * lejp_construct - prepare a struct lejp_ctx for use
+ *
+ * @ctx: pointer to your struct lejp_ctx
+ * @callback: your user callback which will received parsed tokens
+ * @user: optional user data pointer untouched by lejp
+ * @paths: your array of name elements you are interested in
+ * @count_paths: ARRAY_SIZE() of @paths
+ *
+ * Prepares your context struct for use with lejp
+ */
+
+void
+lejp_construct(struct lejp_ctx *ctx,
+ char (*callback)(struct lejp_ctx *ctx, char reason), void *user,
+ const char * const *paths, unsigned char count_paths)
+{
+ ctx->st[0].s = 0;
+ ctx->st[0].p = 0;
+ ctx->st[0].i = 0;
+ ctx->st[0].b = 0;
+ ctx->sp = 0;
+ ctx->ipos = 0;
+ ctx->ppos = 0;
+ ctx->path_match = 0;
+ ctx->path[0] = '\0';
+ ctx->callback = callback;
+ ctx->user = user;
+ ctx->paths = paths;
+ ctx->count_paths = count_paths;
+ ctx->line = 1;
+ ctx->callback(ctx, LEJPCB_CONSTRUCTED);
+}
+
+/**
+ * lejp_destruct - retire a previously constructed struct lejp_ctx
+ *
+ * @ctx: pointer to your struct lejp_ctx
+ *
+ * lejp does not perform any allocations, but since your user code might, this
+ * provides a one-time LEJPCB_DESTRUCTED callback at destruction time where
+ * you can clean up in your callback.
+ */
+
+void
+lejp_destruct(struct lejp_ctx *ctx)
+{
+ /* no allocations... just let callback know what it happening */
+ ctx->callback(ctx, LEJPCB_DESTRUCTED);
+}
+
+/**
+ * lejp_change_callback - switch to a different callback from now on
+ *
+ * @ctx: pointer to your struct lejp_ctx
+ * @callback: your user callback which will received parsed tokens
+ *
+ * This tells the old callback it was destroyed, in case you want to take any
+ * action because that callback "lost focus", then changes to the new
+ * callback and tells it first that it was constructed, and then started.
+ *
+ * Changing callback is a cheap and powerful trick to split out handlers
+ * according to information earlier in the parse. For example you may have
+ * a JSON pair "schema" whose value defines what can be expected for the rest
+ * of the JSON. Rather than having one huge callback for all cases, you can
+ * have an initial one looking for "schema" which then calls
+ * lejp_change_callback() to a handler specific for the schema.
+ *
+ * Notice that afterwards, you need to construct the context again anyway to
+ * parse another JSON object, and the callback is reset then to the main,
+ * schema-interpreting one. The construction action is very lightweight.
+ */
+
+void
+lejp_change_callback(struct lejp_ctx *ctx,
+ char (*callback)(struct lejp_ctx *ctx, char reason))
+{
+ ctx->callback(ctx, LEJPCB_DESTRUCTED);
+ ctx->callback = callback;
+ ctx->callback(ctx, LEJPCB_CONSTRUCTED);
+ ctx->callback(ctx, LEJPCB_START);
+}
+
+static void
+lejp_check_path_match(struct lejp_ctx *ctx)
+{
+ int n;
+
+ /* we only need to check if a match is not active */
+ for (n = 0; !ctx->path_match && n < ctx->count_paths; n++) {
+ if (strcmp(ctx->path, ctx->paths[n]))
+ continue;
+ ctx->path_match = n + 1;
+ ctx->path_match_len = ctx->ppos;
+ return;
+ }
+}
+
+/**
+ * lejp_parse - interpret some more incoming data incrementally
+ *
+ * @ctx: previously constructed parsing context
+ * @json: char buffer with the new data to interpret
+ * @len: amount of data in the buffer
+ *
+ * Because lejp is a stream parser, it incrementally parses as new data
+ * becomes available, maintaining all state in the context struct. So an
+ * incomplete JSON is a normal situation, getting you a LEJP_CONTINUE
+ * return, signalling there's no error but to call again with more data when
+ * it comes to complete the parsing. Successful parsing completes with a
+ * 0 or positive integer indicating how much of the last input buffer was
+ * unused.
+ */
+
+int
+lejp_parse(struct lejp_ctx *ctx, const unsigned char *json, int len)
+{
+ unsigned char c, n, s, ret = LEJP_REJECT_UNKNOWN;
+ static const char esc_char[] = "\"\\/bfnrt";
+ static const char esc_tran[] = "\"\\/\b\f\n\r\t";
+ static const char tokens[] = "rue alse ull ";
+
+ if (!ctx->sp && !ctx->ppos)
+ ctx->callback(ctx, LEJPCB_START);
+
+ while (len--) {
+ c = *json++;
+
+ s = ctx->st[ctx->sp].s;
+
+ /* skip whitespace unless we should care */
+ if (c == ' ' || c == '\t' || c == '\n' || c == '\r' || c == '#') {
+ if (c == '\n') {
+ ctx->line++;
+ ctx->st[ctx->sp].s &= ~LEJP_FLAG_WS_COMMENTLINE;
+ }
+ if (!(s & LEJP_FLAG_WS_KEEP)) {
+ if (c == '#')
+ ctx->st[ctx->sp].s |=
+ LEJP_FLAG_WS_COMMENTLINE;
+ continue;
+ }
+ }
+
+ if (ctx->st[ctx->sp].s & LEJP_FLAG_WS_COMMENTLINE)
+ continue;
+
+ switch (s) {
+ case LEJP_IDLE:
+ if (c != '{') {
+ ret = LEJP_REJECT_IDLE_NO_BRACE;
+ goto reject;
+ }
+ ctx->callback(ctx, LEJPCB_OBJECT_START);
+ ctx->st[ctx->sp].s = LEJP_MEMBERS;
+ break;
+ case LEJP_MEMBERS:
+ if (c == '}') {
+ ctx->st[ctx->sp].s = LEJP_IDLE;
+ ret = LEJP_REJECT_MEMBERS_NO_CLOSE;
+ goto reject;
+ }
+ ctx->st[ctx->sp].s = LEJP_M_P;
+ goto redo_character;
+ case LEJP_M_P:
+ if (c != '\"') {
+ ret = LEJP_REJECT_MP_NO_OPEN_QUOTE;
+ goto reject;
+ }
+ /* push */
+ ctx->st[ctx->sp].s = LEJP_MP_DELIM;
+ c = LEJP_MP_STRING;
+ goto add_stack_level;
+
+ case LEJP_MP_STRING:
+ if (c == '\"') {
+ if (!ctx->sp) {
+ ret = LEJP_REJECT_MP_STRING_UNDERRUN;
+ goto reject;
+ }
+ if (ctx->st[ctx->sp - 1].s != LEJP_MP_DELIM) {
+ ctx->buf[ctx->npos] = '\0';
+ if (ctx->callback(ctx,
+ LEJPCB_VAL_STR_END) < 0) {
+ ret = LEJP_REJECT_CALLBACK;
+ goto reject;
+ }
+ }
+ /* pop */
+ ctx->sp--;
+ break;
+ }
+ if (c == '\\') {
+ ctx->st[ctx->sp].s = LEJP_MP_STRING_ESC;
+ break;
+ }
+ if (c < ' ') {/* "control characters" not allowed */
+ ret = LEJP_REJECT_MP_ILLEGAL_CTRL;
+ goto reject;
+ }
+ goto emit_string_char;
+
+ case LEJP_MP_STRING_ESC:
+ if (c == 'u') {
+ ctx->st[ctx->sp].s = LEJP_MP_STRING_ESC_U1;
+ ctx->uni = 0;
+ break;
+ }
+ for (n = 0; n < sizeof(esc_char); n++) {
+ if (c != esc_char[n])
+ continue;
+ /* found it */
+ c = esc_tran[n];
+ ctx->st[ctx->sp].s = LEJP_MP_STRING;
+ goto emit_string_char;
+ }
+ ret = LEJP_REJECT_MP_STRING_ESC_ILLEGAL_ESC;
+ /* illegal escape char */
+ goto reject;
+
+ case LEJP_MP_STRING_ESC_U1:
+ case LEJP_MP_STRING_ESC_U2:
+ case LEJP_MP_STRING_ESC_U3:
+ case LEJP_MP_STRING_ESC_U4:
+ ctx->uni <<= 4;
+ if (c >= '0' && c <= '9')
+ ctx->uni |= c - '0';
+ else
+ if (c >= 'a' && c <= 'f')
+ ctx->uni = c - 'a' + 10;
+ else
+ if (c >= 'A' && c <= 'F')
+ ctx->uni = c - 'A' + 10;
+ else {
+ ret = LEJP_REJECT_ILLEGAL_HEX;
+ goto reject;
+ }
+ ctx->st[ctx->sp].s++;
+ switch (s) {
+ case LEJP_MP_STRING_ESC_U2:
+ if (ctx->uni < 0x08)
+ break;
+ /*
+ * 0x08-0xff (0x0800 - 0xffff)
+ * emit 3-byte UTF-8
+ */
+ c = 0xe0 | ((ctx->uni >> 4) & 0xf);
+ goto emit_string_char;
+
+ case LEJP_MP_STRING_ESC_U3:
+ if (ctx->uni >= 0x080) {
+ /*
+ * 0x080 - 0xfff (0x0800 - 0xffff)
+ * middle 3-byte seq
+ * send ....XXXXXX..
+ */
+ c = 0x80 | ((ctx->uni >> 2) & 0x3f);
+ goto emit_string_char;
+ }
+ if (ctx->uni < 0x008)
+ break;
+ /*
+ * 0x008 - 0x7f (0x0080 - 0x07ff)
+ * start 2-byte seq
+ */
+ c = 0xc0 | (ctx->uni >> 2);
+ goto emit_string_char;
+
+ case LEJP_MP_STRING_ESC_U4:
+ if (ctx->uni >= 0x0080)
+ /* end of 2 or 3-byte seq */
+ c = 0x80 | (ctx->uni & 0x3f);
+ else
+ /* literal */
+ c = (unsigned char)ctx->uni;
+
+ ctx->st[ctx->sp].s = LEJP_MP_STRING;
+ goto emit_string_char;
+ default:
+ break;
+ }
+ break;
+
+ case LEJP_MP_DELIM:
+ if (c != ':') {
+ ret = LEJP_REJECT_MP_DELIM_MISSING_COLON;
+ goto reject;
+ }
+ ctx->st[ctx->sp].s = LEJP_MP_VALUE;
+ ctx->path[ctx->ppos] = '\0';
+
+ lejp_check_path_match(ctx);
+ ctx->callback(ctx, LEJPCB_PAIR_NAME);
+ break;
+
+ case LEJP_MP_VALUE:
+ if (c >= '0' && c <= '9') {
+ ctx->npos = 0;
+ ctx->dcount = 0;
+ ctx->f = 0;
+ ctx->st[ctx->sp].s = LEJP_MP_VALUE_NUM_INT;
+ goto redo_character;
+ }
+ switch (c) {
+ case'\"':
+ /* push */
+ ctx->st[ctx->sp].s = LEJP_MP_COMMA_OR_END;
+ c = LEJP_MP_STRING;
+ ctx->npos = 0;
+ ctx->buf[0] = '\0';
+ ctx->callback(ctx, LEJPCB_VAL_STR_START);
+ goto add_stack_level;
+
+ case '{':
+ /* push */
+ ctx->st[ctx->sp].s = LEJP_MP_COMMA_OR_END;
+ c = LEJP_MEMBERS;
+ lejp_check_path_match(ctx);
+ ctx->callback(ctx, LEJPCB_OBJECT_START);
+ ctx->path_match = 0;
+ goto add_stack_level;
+
+ case '[':
+ /* push */
+ ctx->st[ctx->sp].s = LEJP_MP_ARRAY_END;
+ c = LEJP_MP_VALUE;
+ ctx->path[ctx->ppos++] = '[';
+ ctx->path[ctx->ppos++] = ']';
+ ctx->path[ctx->ppos] = '\0';
+ ctx->callback(ctx, LEJPCB_ARRAY_START);
+ ctx->i[ctx->ipos++] = 0;
+ if (ctx->ipos > ARRAY_SIZE(ctx->i)) {
+ ret = LEJP_REJECT_MP_DELIM_ISTACK;
+ goto reject;
+ }
+ goto add_stack_level;
+
+ case 't': /* true */
+ ctx->uni = 0;
+ ctx->st[ctx->sp].s = LEJP_MP_VALUE_TOK;
+ break;
+
+ case 'f':
+ ctx->uni = 4;
+ ctx->st[ctx->sp].s = LEJP_MP_VALUE_TOK;
+ break;
+
+ case 'n':
+ ctx->uni = 4 + 5;
+ ctx->st[ctx->sp].s = LEJP_MP_VALUE_TOK;
+ break;
+ default:
+ ret = LEJP_REJECT_MP_DELIM_BAD_VALUE_START;
+ goto reject;
+ }
+ break;
+
+ case LEJP_MP_VALUE_NUM_INT:
+ if (!ctx->npos && c == '-') {
+ ctx->f |= LEJP_SEEN_MINUS;
+ goto append_npos;
+ }
+
+ if (ctx->dcount < 10 && c >= '0' && c <= '9') {
+ if (ctx->f & LEJP_SEEN_POINT)
+ ctx->f |= LEJP_SEEN_POST_POINT;
+ ctx->dcount++;
+ goto append_npos;
+ }
+ if (c == '.') {
+ if (ctx->dcount || (ctx->f & LEJP_SEEN_POINT)) {
+ ret = LEJP_REJECT_MP_VAL_NUM_FORMAT;
+ goto reject;
+ }
+ ctx->f |= LEJP_SEEN_POINT;
+ goto append_npos;
+ }
+ /*
+ * before exponent, if we had . we must have had at
+ * least one more digit
+ */
+ if ((ctx->f &
+ (LEJP_SEEN_POINT | LEJP_SEEN_POST_POINT)) ==
+ LEJP_SEEN_POINT) {
+ ret = LEJP_REJECT_MP_VAL_NUM_INT_NO_FRAC;
+ goto reject;
+ }
+ if (c == 'e' || c == 'E') {
+ if (ctx->f & LEJP_SEEN_EXP) {
+ ret = LEJP_REJECT_MP_VAL_NUM_FORMAT;
+ goto reject;
+ }
+ ctx->f |= LEJP_SEEN_EXP;
+ ctx->st[ctx->sp].s = LEJP_MP_VALUE_NUM_EXP;
+ goto append_npos;
+ }
+ /* if none of the above, did we even have a number? */
+ if (!ctx->dcount) {
+ ret = LEJP_REJECT_MP_VAL_NUM_FORMAT;
+ goto reject;
+ }
+
+ ctx->buf[ctx->npos] = '\0';
+ if (ctx->f & LEJP_SEEN_POINT)
+ ctx->callback(ctx, LEJPCB_VAL_NUM_FLOAT);
+ else
+ ctx->callback(ctx, LEJPCB_VAL_NUM_INT);
+
+ /* then this is the post-number character, loop */
+ ctx->st[ctx->sp].s = LEJP_MP_COMMA_OR_END;
+ goto redo_character;
+
+ case LEJP_MP_VALUE_NUM_EXP:
+ ctx->st[ctx->sp].s = LEJP_MP_VALUE_NUM_INT;
+ if (c >= '0' && c <= '9')
+ goto redo_character;
+ if (c == '+' || c == '-')
+ goto append_npos;
+ ret = LEJP_REJECT_MP_VAL_NUM_EXP_BAD_EXP;
+ goto reject;
+
+ case LEJP_MP_VALUE_TOK: /* true, false, null */
+ if (c != tokens[ctx->uni]) {
+ ret = LEJP_REJECT_MP_VAL_TOK_UNKNOWN;
+ goto reject;
+ }
+ ctx->uni++;
+ if (tokens[ctx->uni] != ' ')
+ break;
+ switch (ctx->uni) {
+ case 3:
+ ctx->buf[0] = '1';
+ ctx->buf[1] = '\0';
+ ctx->callback(ctx, LEJPCB_VAL_TRUE);
+ break;
+ case 8:
+ ctx->buf[0] = '0';
+ ctx->buf[1] = '\0';
+ ctx->callback(ctx, LEJPCB_VAL_FALSE);
+ break;
+ case 12:
+ ctx->buf[0] = '\0';
+ ctx->callback(ctx, LEJPCB_VAL_NULL);
+ break;
+ }
+ ctx->st[ctx->sp].s = LEJP_MP_COMMA_OR_END;
+ break;
+
+ case LEJP_MP_COMMA_OR_END:
+ ctx->path[ctx->ppos] = '\0';
+ if (c == ',') {
+ /* increment this stack level's index */
+ ctx->st[ctx->sp].s = LEJP_M_P;
+ if (!ctx->sp) {
+ ctx->ppos = 0;
+ /*
+ * since we came back to root level,
+ * no path can still match
+ */
+ ctx->path_match = 0;
+ break;
+ }
+ ctx->ppos = ctx->st[ctx->sp - 1].p;
+ ctx->path[ctx->ppos] = '\0';
+ if (ctx->path_match &&
+ ctx->ppos <= ctx->path_match_len)
+ /*
+ * we shrank the path to be
+ * smaller than the matching point
+ */
+ ctx->path_match = 0;
+
+ if (ctx->st[ctx->sp - 1].s != LEJP_MP_ARRAY_END)
+ break;
+ /* top level is definitely an array... */
+ if (ctx->ipos)
+ ctx->i[ctx->ipos - 1]++;
+ ctx->st[ctx->sp].s = LEJP_MP_VALUE;
+ break;
+ }
+ if (c == ']') {
+ if (!ctx->sp) {
+ ret = LEJP_REJECT_MP_C_OR_E_UNDERF;
+ goto reject;
+ }
+ /* pop */
+ ctx->sp--;
+ if (ctx->st[ctx->sp].s != LEJP_MP_ARRAY_END) {
+ ret = LEJP_REJECT_MP_C_OR_E_NOTARRAY;
+ goto reject;
+ }
+ /* drop the path [n] bit */
+ ctx->ppos = ctx->st[ctx->sp - 1].p;
+ ctx->ipos = ctx->st[ctx->sp - 1].i;
+ ctx->path[ctx->ppos] = '\0';
+ if (ctx->path_match &&
+ ctx->ppos <= ctx->path_match_len)
+ /*
+ * we shrank the path to be
+ * smaller than the matching point
+ */
+ ctx->path_match = 0;
+
+ /* do LEJP_MP_ARRAY_END processing */
+ goto redo_character;
+ }
+ if (c == '}') {
+ if (ctx->sp == 0) {
+ lejp_check_path_match(ctx);
+ ctx->callback(ctx, LEJPCB_OBJECT_END);
+ ctx->callback(ctx, LEJPCB_COMPLETE);
+ /* done, return unused amount */
+ return len;
+ }
+ /* pop */
+ ctx->sp--;
+ ctx->ppos = ctx->st[ctx->sp - 1].p;
+ ctx->ipos = ctx->st[ctx->sp - 1].i;
+ ctx->path[ctx->ppos] = '\0';
+ if (ctx->path_match &&
+ ctx->ppos <= ctx->path_match_len)
+ /*
+ * we shrank the path to be
+ * smaller than the matching point
+ */
+ ctx->path_match = 0;
+ lejp_check_path_match(ctx);
+ ctx->callback(ctx, LEJPCB_OBJECT_END);
+ break;
+ }
+
+ ret = LEJP_REJECT_MP_C_OR_E_NEITHER;
+ goto reject;
+
+ case LEJP_MP_ARRAY_END:
+ ctx->path[ctx->ppos] = '\0';
+ if (c == ',') {
+ /* increment this stack level's index */
+ if (ctx->ipos)
+ ctx->i[ctx->ipos - 1]++;
+ ctx->st[ctx->sp].s = LEJP_MP_VALUE;
+ if (ctx->sp)
+ ctx->ppos = ctx->st[ctx->sp - 1].p;
+ ctx->path[ctx->ppos] = '\0';
+ break;
+ }
+ if (c != ']') {
+ ret = LEJP_REJECT_MP_ARRAY_END_MISSING;
+ goto reject;
+ }
+
+ ctx->st[ctx->sp].s = LEJP_MP_COMMA_OR_END;
+ ctx->callback(ctx, LEJPCB_ARRAY_END);
+ break;
+ }
+
+ continue;
+
+emit_string_char:
+ if (!ctx->sp || ctx->st[ctx->sp - 1].s != LEJP_MP_DELIM) {
+ /* assemble the string value into chunks */
+ ctx->buf[ctx->npos++] = c;
+ if (ctx->npos == sizeof(ctx->buf) - 1) {
+ ctx->callback(ctx, LEJPCB_VAL_STR_CHUNK);
+ ctx->npos = 0;
+ }
+ continue;
+ }
+ /* name part of name:value pair */
+ ctx->path[ctx->ppos++] = c;
+ continue;
+
+add_stack_level:
+ /* push on to the object stack */
+ if (ctx->ppos && ctx->st[ctx->sp].s != LEJP_MP_COMMA_OR_END &&
+ ctx->st[ctx->sp].s != LEJP_MP_ARRAY_END)
+ ctx->path[ctx->ppos++] = '.';
+
+ ctx->st[ctx->sp].p = ctx->ppos;
+ ctx->st[ctx->sp].i = ctx->ipos;
+ if (++ctx->sp == ARRAY_SIZE(ctx->st)) {
+ ret = LEJP_REJECT_STACK_OVERFLOW;
+ goto reject;
+ }
+ ctx->path[ctx->ppos] = '\0';
+ ctx->st[ctx->sp].s = c;
+ ctx->st[ctx->sp].b = 0;
+ continue;
+
+append_npos:
+ if (ctx->npos >= sizeof(ctx->buf)) {
+ ret = LEJP_REJECT_NUM_TOO_LONG;
+ goto reject;
+ }
+ ctx->buf[ctx->npos++] = c;
+ continue;
+
+redo_character:
+ json--;
+ len++;
+ }
+
+ return LEJP_CONTINUE;
+
+reject:
+ ctx->callback(ctx, LEJPCB_FAILED);
+ return ret;
+}
--- /dev/null
+
+struct lejp_ctx;
+
+#ifndef ARRAY_SIZE
+#define ARRAY_SIZE(_x) (sizeof(_x) / sizeof(_x[0]))
+#endif
+#define LEJP_FLAG_WS_KEEP 64
+#define LEJP_FLAG_WS_COMMENTLINE 32
+
+enum lejp_states {
+ LEJP_IDLE = 0,
+ LEJP_MEMBERS = 1,
+ LEJP_M_P = 2,
+ LEJP_MP_STRING = LEJP_FLAG_WS_KEEP | 3,
+ LEJP_MP_STRING_ESC = LEJP_FLAG_WS_KEEP | 4,
+ LEJP_MP_STRING_ESC_U1 = LEJP_FLAG_WS_KEEP | 5,
+ LEJP_MP_STRING_ESC_U2 = LEJP_FLAG_WS_KEEP | 6,
+ LEJP_MP_STRING_ESC_U3 = LEJP_FLAG_WS_KEEP | 7,
+ LEJP_MP_STRING_ESC_U4 = LEJP_FLAG_WS_KEEP | 8,
+ LEJP_MP_DELIM = 9,
+ LEJP_MP_VALUE = 10,
+ LEJP_MP_VALUE_NUM_INT = LEJP_FLAG_WS_KEEP | 11,
+ LEJP_MP_VALUE_NUM_EXP = LEJP_FLAG_WS_KEEP | 12,
+ LEJP_MP_VALUE_TOK = LEJP_FLAG_WS_KEEP | 13,
+ LEJP_MP_COMMA_OR_END = 14,
+ LEJP_MP_ARRAY_END = 15,
+};
+
+enum lejp_reasons {
+ LEJP_CONTINUE = -1,
+ LEJP_REJECT_IDLE_NO_BRACE = -2,
+ LEJP_REJECT_MEMBERS_NO_CLOSE = -3,
+ LEJP_REJECT_MP_NO_OPEN_QUOTE = -4,
+ LEJP_REJECT_MP_STRING_UNDERRUN = -5,
+ LEJP_REJECT_MP_ILLEGAL_CTRL = -6,
+ LEJP_REJECT_MP_STRING_ESC_ILLEGAL_ESC = -7,
+ LEJP_REJECT_ILLEGAL_HEX = -8,
+ LEJP_REJECT_MP_DELIM_MISSING_COLON = -9,
+ LEJP_REJECT_MP_DELIM_BAD_VALUE_START = -10,
+ LEJP_REJECT_MP_VAL_NUM_INT_NO_FRAC = -11,
+ LEJP_REJECT_MP_VAL_NUM_FORMAT = -12,
+ LEJP_REJECT_MP_VAL_NUM_EXP_BAD_EXP = -13,
+ LEJP_REJECT_MP_VAL_TOK_UNKNOWN = -14,
+ LEJP_REJECT_MP_C_OR_E_UNDERF = -15,
+ LEJP_REJECT_MP_C_OR_E_NOTARRAY = -16,
+ LEJP_REJECT_MP_ARRAY_END_MISSING = -17,
+ LEJP_REJECT_STACK_OVERFLOW = -18,
+ LEJP_REJECT_MP_DELIM_ISTACK = -19,
+ LEJP_REJECT_NUM_TOO_LONG = -20,
+ LEJP_REJECT_MP_C_OR_E_NEITHER = -21,
+ LEJP_REJECT_UNKNOWN = -22,
+ LEJP_REJECT_CALLBACK = -23
+};
+
+#define LEJP_FLAG_CB_IS_VALUE 64
+
+enum lejp_callbacks {
+ LEJPCB_CONSTRUCTED = 0,
+ LEJPCB_DESTRUCTED = 1,
+
+ LEJPCB_START = 2,
+ LEJPCB_COMPLETE = 3,
+ LEJPCB_FAILED = 4,
+
+ LEJPCB_PAIR_NAME = 5,
+
+ LEJPCB_VAL_TRUE = LEJP_FLAG_CB_IS_VALUE | 6,
+ LEJPCB_VAL_FALSE = LEJP_FLAG_CB_IS_VALUE | 7,
+ LEJPCB_VAL_NULL = LEJP_FLAG_CB_IS_VALUE | 8,
+ LEJPCB_VAL_NUM_INT = LEJP_FLAG_CB_IS_VALUE | 9,
+ LEJPCB_VAL_NUM_FLOAT = LEJP_FLAG_CB_IS_VALUE | 10,
+ LEJPCB_VAL_STR_START = 11, /* notice handle separately */
+ LEJPCB_VAL_STR_CHUNK = LEJP_FLAG_CB_IS_VALUE | 12,
+ LEJPCB_VAL_STR_END = LEJP_FLAG_CB_IS_VALUE | 13,
+
+ LEJPCB_ARRAY_START = 14,
+ LEJPCB_ARRAY_END = 15,
+
+ LEJPCB_OBJECT_START = 16,
+ LEJPCB_OBJECT_END = 17
+};
+
+/**
+ * _lejp_callback() - User parser actions
+ * @ctx: LEJP context
+ * @reason: Callback reason
+ *
+ * Your user callback is associated with the context at construction time,
+ * and receives calls as the parsing progresses.
+ *
+ * All of the callbacks may be ignored and just return 0.
+ *
+ * The reasons it might get called, found in @reason, are:
+ *
+ * LEJPCB_CONSTRUCTED: The context was just constructed... you might want to
+ * perform one-time allocation for the life of the context.
+ *
+ * LEJPCB_DESTRUCTED: The context is being destructed... if you made any
+ * allocations at construction-time, you can free them now
+ *
+ * LEJPCB_START: Parsing is beginning at the first byte of input
+ *
+ * LEJPCB_COMPLETE: Parsing has completed successfully. You'll get a 0 or
+ * positive return code from lejp_parse indicating the
+ * amount of unused bytes left in the input buffer
+ *
+ * LEJPCB_FAILED: Parsing failed. You'll get a negative error code
+ * returned from lejp_parse
+ *
+ * LEJPCB_PAIR_NAME: When a "name":"value" pair has had the name parsed,
+ * this callback occurs. You can find the new name at
+ * the end of ctx->path[]
+ *
+ * LEJPCB_VAL_TRUE: The "true" value appeared
+ *
+ * LEJPCB_VAL_FALSE: The "false" value appeared
+ *
+ * LEJPCB_VAL_NULL: The "null" value appeared
+ *
+ * LEJPCB_VAL_NUM_INT: A string representing an integer is in ctx->buf
+ *
+ * LEJPCB_VAL_NUM_FLOAT: A string representing a float is in ctx->buf
+ *
+ * LEJPCB_VAL_STR_START: We are starting to parse a string, no data yet
+ *
+ * LEJPCB_VAL_STR_CHUNK: We parsed LEJP_STRING_CHUNK -1 bytes of string data in
+ * ctx->buf, which is as much as we can buffer, so we are
+ * spilling it. If all your strings are less than
+ * LEJP_STRING_CHUNK - 1 bytes, you will never see this
+ * callback.
+ *
+ * LEJPCB_VAL_STR_END: String parsing has completed, the last chunk of the
+ * string is in ctx->buf.
+ *
+ * LEJPCB_ARRAY_START: An array started
+ *
+ * LEJPCB_ARRAY_END: An array ended
+ *
+ * LEJPCB_OBJECT_START: An object started
+ *
+ * LEJPCB_OBJECT_END: An object ended
+ */
+extern char _lejp_callback(struct lejp_ctx *ctx, char reason);
+
+typedef char (*lejp_callback)(struct lejp_ctx *ctx, char reason);
+
+#ifndef LEJP_MAX_DEPTH
+#define LEJP_MAX_DEPTH 12
+#endif
+#ifndef LEJP_MAX_INDEX_DEPTH
+#define LEJP_MAX_INDEX_DEPTH 5
+#endif
+#ifndef LEJP_MAX_PATH
+#define LEJP_MAX_PATH 128
+#endif
+#ifndef LEJP_STRING_CHUNK
+/* must be >= 30 to assemble floats */
+#define LEJP_STRING_CHUNK 64
+#endif
+
+enum num_flags {
+ LEJP_SEEN_MINUS = (1 << 0),
+ LEJP_SEEN_POINT = (1 << 1),
+ LEJP_SEEN_POST_POINT = (1 << 2),
+ LEJP_SEEN_EXP = (1 << 3)
+};
+
+struct _lejp_stack {
+ char s; /* lejp_state stack*/
+ char p; /* path length */
+ char i; /* index array length */
+ char b; /* user bitfield */
+};
+
+struct lejp_ctx {
+
+ /* sorted by type for most compact alignment
+ *
+ * pointers
+ */
+
+ char (*callback)(struct lejp_ctx *ctx, char reason);
+ void *user;
+ const char * const *paths;
+
+ /* arrays */
+
+ struct _lejp_stack st[LEJP_MAX_DEPTH];
+ unsigned short i[LEJP_MAX_INDEX_DEPTH]; /* index array */
+ char path[LEJP_MAX_PATH];
+ char buf[LEJP_STRING_CHUNK];
+
+ /* int */
+
+ unsigned int line;
+
+ /* short */
+
+ unsigned short uni;
+
+ /* char */
+
+ unsigned char npos;
+ unsigned char dcount;
+ unsigned char f;
+ unsigned char sp; /* stack head */
+ unsigned char ipos; /* index stack depth */
+ unsigned char ppos;
+ unsigned char count_paths;
+ unsigned char path_match;
+ unsigned char path_match_len;
+};
+
+extern void
+lejp_construct(struct lejp_ctx *ctx,
+ char (*callback)(struct lejp_ctx *ctx, char reason), void *user,
+ const char * const *paths, unsigned char paths_count);
+
+extern void
+lejp_destruct(struct lejp_ctx *ctx);
+
+extern int
+lejp_parse(struct lejp_ctx *ctx, const unsigned char *json, int len);
+
+extern void
+lejp_change_callback(struct lejp_ctx *ctx,
+ char (*callback)(struct lejp_ctx *ctx, char reason));
--- /dev/null
+#if defined(_WIN32) && defined(EXTERNAL_POLL)
+#define WINVER 0x0600
+#define _WIN32_WINNT 0x0600
+#define poll(fdArray, fds, timeout) WSAPoll((LPWSAPOLLFD)(fdArray), (ULONG)(fds), (INT)(timeout))
+#endif
+
+#include "lws_config.h"
+
+#include <stdio.h>
+#include <stdlib.h>
+#include <getopt.h>
+#include <signal.h>
+#include <string.h>
+#include <sys/stat.h>
+#include <fcntl.h>
+#include <assert.h>
+#ifndef _WIN32
+#include <dirent.h>
+#endif
+
+#include "../lib/libwebsockets.h"
+#include "lejp.h"
+
+#ifdef _WIN32
+#include <io.h>
+#include "gettimeofday.h"
+#else
+#include <syslog.h>
+#include <sys/time.h>
+#include <unistd.h>
+#endif
+
+extern void test_server_lock(int care);
+extern void test_server_unlock(int care);
+
+#ifndef __func__
+#define __func__ __FUNCTION__
+#endif
+
+struct per_session_data__http {
+ lws_filefd_type fd;
+#ifdef LWS_WITH_CGI
+ struct lws_cgi_args args;
+#endif
+#if defined(LWS_WITH_CGI) || !defined(LWS_NO_CLIENT)
+ int reason_bf;
+#endif
+ unsigned int client_finished:1;
+};
+
+extern int
+lwsws_get_config_globals(struct lws_context_creation_info *info, const char *d,
+ char **config_strings, int *len);
+
+extern int
+lwsws_get_config_vhosts(struct lws_context *context,
+ struct lws_context_creation_info *info, const char *d,
+ char **config_strings, int *len);
+
+extern int
+callback_http(struct lws *wsi, enum lws_callback_reasons reason,
+ void *user, void *in, size_t len);
--- /dev/null
+/*
+ * libwebsockets web server application
+ *
+ * Copyright (C) 2010-2016 Andy Green <andy@warmcat.com>
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public
+ * License as published by the Free Software Foundation:
+ * version 2.1 of the License.
+ *
+ * This library 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 General Public
+ * License along with this library; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston,
+ * MA 02110-1301 USA
+ */
+
+#include "lwsws.h"
+
+int debug_level = 7;
+
+volatile int force_exit = 0;
+struct lws_context *context;
+
+static char *config_dir = "/etc/lwsws/conf.d";
+
+/*
+ * strings and objects from the config file parsing are created here
+ */
+#define LWSWS_CONFIG_STRING_SIZE (32 * 1024)
+char config_strings[LWSWS_CONFIG_STRING_SIZE];
+
+/* singlethreaded version --> no locks */
+
+void test_server_lock(int care)
+{
+}
+void test_server_unlock(int care)
+{
+}
+
+
+enum demo_protocols {
+ /* always first */
+ PROTOCOL_HTTP = 0,
+
+ /* always last */
+ DEMO_PROTOCOL_COUNT
+};
+
+/* list of supported protocols and callbacks */
+
+static struct lws_protocols protocols[] = {
+ /* first protocol must always be HTTP handler */
+ {
+ "http-only", /* name */
+ callback_http, /* callback */
+ sizeof (struct per_session_data__http), /* per_session_data_size */
+ 0, /* max frame size / rx buffer */
+ },
+};
+
+void sighandler(int sig)
+{
+ force_exit = 1;
+ lws_cancel_service(context);
+}
+
+static const struct lws_extension exts[] = {
+ {
+ "permessage-deflate",
+ lws_extension_callback_pm_deflate,
+ "permessage-deflate"
+ },
+ { NULL, NULL, NULL /* terminator */ }
+};
+
+static struct option options[] = {
+ { "help", no_argument, NULL, 'h' },
+ { "debug", required_argument, NULL, 'd' },
+ { "configdir", required_argument, NULL, 'c' },
+#ifndef LWS_NO_DAEMONIZE
+ { "daemonize", no_argument, NULL, 'D' },
+#endif
+ { NULL, 0, 0, 0 }
+};
+
+#ifdef LWS_USE_LIBUV
+void signal_cb(uv_signal_t *watcher, int signum)
+{
+ lwsl_err("Signal %d caught, exiting...\n", watcher->signum);
+ switch (watcher->signum) {
+ case SIGTERM:
+ case SIGINT:
+ break;
+ default:
+ signal(SIGABRT, SIG_DFL);
+ abort();
+ break;
+ }
+ lws_libuv_stop(context);
+}
+#endif
+
+int main(int argc, char **argv)
+{
+ struct lws_context_creation_info info;
+ char *cs = config_strings;
+ int opts = 0, cs_len = sizeof(config_strings) - 1;
+ int n = 0;
+#ifndef _WIN32
+ int syslog_options = LOG_PID | LOG_PERROR;
+#endif
+#ifndef LWS_NO_DAEMONIZE
+ int daemonize = 0;
+#endif
+
+ memset(&info, 0, sizeof info);
+
+ while (n >= 0) {
+ n = getopt_long(argc, argv, "hd:c:D", options, NULL);
+ if (n < 0)
+ continue;
+ switch (n) {
+#ifndef LWS_NO_DAEMONIZE
+ case 'D':
+ daemonize = 1;
+ #ifndef _WIN32
+ syslog_options &= ~LOG_PERROR;
+ #endif
+ break;
+#endif
+ case 'd':
+ debug_level = atoi(optarg);
+ break;
+ case 'c':
+ strncpy(config_dir, optarg, sizeof(config_dir) - 1);
+ config_dir[sizeof(config_dir) - 1] = '\0';
+ break;
+ case 'h':
+ fprintf(stderr, "Usage: lwsws [-c <config dir>] "
+ "[-d <log bitfield>] [-D] [--help]\n");
+ exit(1);
+ }
+ }
+
+#if !defined(LWS_NO_DAEMONIZE) && !defined(WIN32)
+ /*
+ * normally lock path would be /var/lock/lwsts or similar, to
+ * simplify getting started without having to take care about
+ * permissions or running as root, set to /tmp/.lwsts-lock
+ */
+ if (daemonize && lws_daemonize("/tmp/.lwsts-lock")) {
+ fprintf(stderr, "Failed to daemonize\n");
+ return 10;
+ }
+#endif
+
+ signal(SIGINT, sighandler);
+
+#ifndef _WIN32
+ /* we will only try to log things according to our debug_level */
+ setlogmask(LOG_UPTO (LOG_DEBUG));
+ openlog("lwsws", syslog_options, LOG_DAEMON);
+#endif
+
+ lws_set_log_level(debug_level, lwsl_emit_syslog);
+
+ lwsl_notice("lwsws libwebsockets web server - license GPL2.1\n");
+ lwsl_notice("(C) Copyright 2010-2016 Andy Green <andy@warmcat.com>\n");
+
+ memset(&info, 0, sizeof(info));
+
+ info.max_http_header_pool = 16;
+ info.options = opts | LWS_SERVER_OPTION_VALIDATE_UTF8 |
+ LWS_SERVER_OPTION_EXPLICIT_VHOSTS;
+#ifdef LWS_USE_LIBUV
+ info.options |= LWS_SERVER_OPTION_LIBUV;
+#endif
+
+ lwsl_notice("Using config dir: \"%s\"\n", config_dir);
+
+ /*
+ * first go through the config for creating the outer context
+ */
+
+ if (lwsws_get_config_globals(&info, config_dir, &cs, &cs_len))
+ goto bail;
+
+ context = lws_create_context(&info);
+ if (context == NULL) {
+ lwsl_err("libwebsocket init failed\n");
+ return -1;
+ }
+
+ /*
+ * then create the vhosts...
+ *
+ * protocols and extensions are the global list of possible
+ * protocols and extensions offered serverwide. The vhosts
+ * in the config files enable the ones they want to offer
+ * per vhost.
+ *
+ * The first protocol is always included for http support.
+ */
+
+ info.protocols = protocols;
+ info.extensions = exts;
+
+ if (lwsws_get_config_vhosts(context, &info, config_dir, &cs, &cs_len))
+ goto bail;
+
+#ifdef LWS_USE_LIBUV
+ lws_uv_sigint_cfg(context, 1, signal_cb);
+ lws_uv_initloop(context, NULL, 0);
+ lws_libuv_run(context, 0);
+#else
+
+ n = 0;
+ while (n >= 0 && !force_exit) {
+ n = lws_service(context, 50);
+ }
+#endif
+
+bail:
+ lws_context_destroy(context);
+ lwsl_notice("lwsws exited cleanly\n");
+
+#ifndef _WIN32
+ closelog();
+#endif
+
+ return 0;
+}
projects / platform / upstream / libwebsockets.git / commitdiff