mirror of
https://github.com/warmcat/libwebsockets.git
synced 2025-03-16 00:00:07 +01:00
a4148a13ba
The union used to make a lot of sense to save space between mutually exclusive modes. But the fact the http2 struct contains the http1 struct as well as it appearing in the union means the http1 struct belongs outside the union. This patch - eliminates the union - puts the http_related struct directly in struct lws - removes http_related from h2 - puts h2 directly in struct lws if enabled for build - changes ws to be a pointer, allocated if we upgrade to ws (the ws part contains a 135 byte char array for ping / close) Again all of this is entirely private / internal and doesn't affect any apis.
172 lines
4.5 KiB
C
172 lines
4.5 KiB
C
/*
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* libwebsockets - server access log handling
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*
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* Copyright (C) 2010-2017 Andy Green <andy@warmcat.com>
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*
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* This library is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Lesser General Public
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* License as published by the Free Software Foundation:
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* version 2.1 of the License.
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*
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* This library is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* Lesser General Public License for more details.
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*
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* You should have received a copy of the GNU Lesser General Public
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* License along with this library; if not, write to the Free Software
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* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston,
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* MA 02110-1301 USA
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*/
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#include "private-libwebsockets.h"
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/*
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* Produce Apache-compatible log string for wsi, like this:
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*
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* 2.31.234.19 - - [27/Mar/2016:03:22:44 +0800]
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* "GET /aep-screen.png HTTP/1.1"
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* 200 152987 "https://libwebsockets.org/index.html"
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* "Mozilla/5.0 (Macint... Chrome/49.0.2623.87 Safari/537.36"
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*
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*/
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extern const char * const method_names[];
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static const char * const hver[] = {
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"HTTP/1.0", "HTTP/1.1", "HTTP/2"
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};
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void
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lws_prepare_access_log_info(struct lws *wsi, char *uri_ptr, int meth)
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{
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#ifdef LWS_WITH_IPV6
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char ads[INET6_ADDRSTRLEN];
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#else
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char ads[INET_ADDRSTRLEN];
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#endif
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char da[64];
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const char *pa, *me;
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struct tm *tmp;
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time_t t = time(NULL);
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int l = 256, m;
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if (wsi->access_log_pending)
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lws_access_log(wsi);
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wsi->access_log.header_log = lws_malloc(l, "access log");
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if (wsi->access_log.header_log) {
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tmp = localtime(&t);
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if (tmp)
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strftime(da, sizeof(da), "%d/%b/%Y:%H:%M:%S %z", tmp);
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else
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strcpy(da, "01/Jan/1970:00:00:00 +0000");
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pa = lws_get_peer_simple(wsi, ads, sizeof(ads));
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if (!pa)
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pa = "(unknown)";
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if (wsi->http2_substream)
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me = lws_hdr_simple_ptr(wsi, WSI_TOKEN_HTTP_COLON_METHOD);
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else
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me = method_names[meth];
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if (!me)
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me = "(null)";
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lws_snprintf(wsi->access_log.header_log, l,
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"%s - - [%s] \"%s %s %s\"",
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pa, da, me, uri_ptr,
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hver[wsi->http.request_version]);
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l = lws_hdr_total_length(wsi, WSI_TOKEN_HTTP_USER_AGENT);
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if (l) {
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wsi->access_log.user_agent = lws_malloc(l + 2, "access log");
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if (!wsi->access_log.user_agent) {
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lwsl_err("OOM getting user agent\n");
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lws_free_set_NULL(wsi->access_log.header_log);
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return;
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}
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lws_hdr_copy(wsi, wsi->access_log.user_agent,
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l + 1, WSI_TOKEN_HTTP_USER_AGENT);
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for (m = 0; m < l; m++)
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if (wsi->access_log.user_agent[m] == '\"')
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wsi->access_log.user_agent[m] = '\'';
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}
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l = lws_hdr_total_length(wsi, WSI_TOKEN_HTTP_REFERER);
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if (l) {
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wsi->access_log.referrer = lws_malloc(l + 2, "referrer");
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if (!wsi->access_log.referrer) {
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lwsl_err("OOM getting user agent\n");
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lws_free_set_NULL(wsi->access_log.user_agent);
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lws_free_set_NULL(wsi->access_log.header_log);
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return;
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}
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lws_hdr_copy(wsi, wsi->access_log.referrer,
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l + 1, WSI_TOKEN_HTTP_REFERER);
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for (m = 0; m < l; m++)
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if (wsi->access_log.referrer[m] == '\"')
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wsi->access_log.referrer[m] = '\'';
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}
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wsi->access_log_pending = 1;
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}
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}
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int
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lws_access_log(struct lws *wsi)
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{
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char *p = wsi->access_log.user_agent, ass[512],
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*p1 = wsi->access_log.referrer;
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int l;
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if (!wsi->access_log_pending)
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return 0;
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if (!wsi->access_log.header_log)
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return 0;
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if (!p)
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p = "";
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if (!p1)
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p1 = "";
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/*
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* We do this in two parts to restrict an oversize referrer such that
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* we will always have space left to append an empty useragent, while
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* maintaining the structure of the log text
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*/
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l = lws_snprintf(ass, sizeof(ass) - 7, "%s %d %lu \"%s",
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wsi->access_log.header_log,
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wsi->access_log.response, wsi->access_log.sent, p1);
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if (strlen(p) > sizeof(ass) - 6 - l)
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p[sizeof(ass) - 6 - l] = '\0';
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l += lws_snprintf(ass + l, sizeof(ass) - 1 - l, "\" \"%s\"\n", p);
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if (wsi->vhost->log_fd != (int)LWS_INVALID_FILE) {
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if (write(wsi->vhost->log_fd, ass, l) != l)
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lwsl_err("Failed to write log\n");
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} else
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lwsl_err("%s", ass);
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if (wsi->access_log.header_log) {
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lws_free(wsi->access_log.header_log);
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wsi->access_log.header_log = NULL;
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}
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if (wsi->access_log.user_agent) {
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lws_free(wsi->access_log.user_agent);
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wsi->access_log.user_agent = NULL;
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}
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if (wsi->access_log.referrer) {
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lws_free(wsi->access_log.referrer);
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wsi->access_log.referrer = NULL;
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}
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wsi->access_log_pending = 0;
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return 0;
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}
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