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Posted to commits@trafficserver.apache.org by zw...@apache.org on 2012/03/01 17:37:55 UTC
[5/5] git commit: Moved plugins under trunk/
Moved plugins under trunk/
git-svn-id: https://svn.apache.org/repos/asf/trafficserver/plugins/trunk@1199005 13f79535-47bb-0310-9956-ffa450edef68
Project: http://git-wip-us.apache.org/repos/asf/trafficserver/repo
Commit: http://git-wip-us.apache.org/repos/asf/trafficserver/commit/bee9846d
Tree: http://git-wip-us.apache.org/repos/asf/trafficserver/tree/bee9846d
Diff: http://git-wip-us.apache.org/repos/asf/trafficserver/diff/bee9846d
Branch: refs/heads/master
Commit: bee9846d9c3c0aebc0619469ec839c30bd3575e4
Parents:
Author: Bryan Call <bc...@apache.org>
Authored: Mon Nov 7 23:16:42 2011 +0000
Committer: Bryan Call <bc...@apache.org>
Committed: Mon Nov 7 23:16:42 2011 +0000
----------------------------------------------------------------------
CHANGES | 5 +
LICENSE | 404 ++++++++++++++++++++++++++++++++++++++++++++++++
Makefile | 25 +++
NOTICE | 5 +
README | 10 ++
stats_over_http.c | 299 +++++++++++++++++++++++++++++++++++
6 files changed, 748 insertions(+), 0 deletions(-)
----------------------------------------------------------------------
http://git-wip-us.apache.org/repos/asf/trafficserver/blob/bee9846d/CHANGES
----------------------------------------------------------------------
diff --git a/CHANGES b/CHANGES
new file mode 100644
index 0000000..638d151
--- /dev/null
+++ b/CHANGES
@@ -0,0 +1,5 @@
+ -*- coding: utf-8 -*-
+
+Changes with Apache Traffic Server header_filter 1.0
+
+ *) This is a basic plugin for doing header_filtering.
http://git-wip-us.apache.org/repos/asf/trafficserver/blob/bee9846d/LICENSE
----------------------------------------------------------------------
diff --git a/LICENSE b/LICENSE
new file mode 100644
index 0000000..bed90de
--- /dev/null
+++ b/LICENSE
@@ -0,0 +1,404 @@
+
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+specific, written prior permission.
+
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+WARRANTIES WITH REGARD TO THIS SOFTWARE, INCLUDING ALL IMPLIED WARRANTIES
+OF MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL DIGITAL EQUIPMENT
+CORPORATION BE LIABLE FOR ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL
+DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR
+PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS
+ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS
+SOFTWARE.
+
+
+
+Copyright (c) 2004 by Internet Systems Consortium, Inc. ("ISC")
+Portions Copyright (c) 1996-1999 by Internet Software Consortium.
+
+Permission to use, copy, modify, and distribute this software for any
+purpose with or without fee is hereby granted, provided that the above
+copyright notice and this permission notice appear in all copies.
+
+THE SOFTWARE IS PROVIDED "AS IS" AND ISC DISCLAIMS ALL WARRANTIES
+WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
+MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL ISC BE LIABLE FOR
+ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
+WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
+ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT
+OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
+
+~~~
+
+Copyright (C) 2007 Ariya Hidayat (ariya@kde.org)
+Copyright (C) 2006 Ariya Hidayat (ariya@kde.org)
+Copyright (C) 2005 Ariya Hidayat (ariya@kde.org)
+
+Permission is hereby granted, free of charge, to any person obtaining a copy
+of this software and associated documentation files (the "Software"), to deal
+in the Software without restriction, including without limitation the rights
+to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+copies of the Software, and to permit persons to whom the Software is
+furnished to do so, subject to the following conditions:
+
+The above copyright notice and this permission notice shall be included in
+all copies or substantial portions of the Software.
+
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+IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
+THE SOFTWARE.
+
+
+For the strlcat, strlcpy in inktomi++/ink_string.cc:
+
+Copyright (c) 1998 Todd C. Miller <To...@courtesan.com>
+
+Permission to use, copy, modify, and distribute this software for any
+purpose with or without fee is hereby granted, provided that the above
+copyright notice and this permission notice appear in all copies.
+
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+WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
+MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
+ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
+WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
+ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
+OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
+
http://git-wip-us.apache.org/repos/asf/trafficserver/blob/bee9846d/Makefile
----------------------------------------------------------------------
diff --git a/Makefile b/Makefile
new file mode 100644
index 0000000..9046855
--- /dev/null
+++ b/Makefile
@@ -0,0 +1,25 @@
+# Licensed to the Apache Software Foundation (ASF) under one
+# or more contributor license agreements. See the NOTICE file
+# distributed with this work for additional information
+# regarding copyright ownership. The ASF licenses this file
+# to you under the Apache License, Version 2.0 (the
+# "License"); you may not use this file except in compliance
+# with the License. You may obtain a copy of the License at
+#
+# http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+
+
+all: stats_over_http.c
+ tsxs -v -c $? -o stats_over_http.so
+
+install:
+ tsxs -i -o stats_over_http.so
+
+clean:
+ rm *.lo *.so
http://git-wip-us.apache.org/repos/asf/trafficserver/blob/bee9846d/NOTICE
----------------------------------------------------------------------
diff --git a/NOTICE b/NOTICE
new file mode 100644
index 0000000..c19f064
--- /dev/null
+++ b/NOTICE
@@ -0,0 +1,5 @@
+Apache Traffic Server
+Copyright 2010 The Apache Software Foundation
+
+This product includes software developed at
+The Apache Software Foundation (http://www.apache.org/).
http://git-wip-us.apache.org/repos/asf/trafficserver/blob/bee9846d/README
----------------------------------------------------------------------
diff --git a/README b/README
new file mode 100644
index 0000000..03718af
--- /dev/null
+++ b/README
@@ -0,0 +1,10 @@
+Compile:
+ tsxs -c stats_over_http.c -o stats_over_http.so
+Install:
+ sudo tsxs -o stats_over_http.so -i
+
+Add to the plugin.conf:
+
+ stats_over_http.so
+
+start traffic server and visit http://IP:port/_stats
http://git-wip-us.apache.org/repos/asf/trafficserver/blob/bee9846d/stats_over_http.c
----------------------------------------------------------------------
diff --git a/stats_over_http.c b/stats_over_http.c
new file mode 100644
index 0000000..45f1f3e
--- /dev/null
+++ b/stats_over_http.c
@@ -0,0 +1,299 @@
+/** @file
+
+ A brief file description
+
+ @section license License
+
+ Licensed to the Apache Software Foundation (ASF) under one
+ or more contributor license agreements. See the NOTICE file
+ distributed with this work for additional information
+ regarding copyright ownership. The ASF licenses this file
+ to you under the Apache License, Version 2.0 (the
+ "License"); you may not use this file except in compliance
+ with the License. You may obtain a copy of the License at
+
+ http://www.apache.org/licenses/LICENSE-2.0
+
+ Unless required by applicable law or agreed to in writing, software
+ distributed under the License is distributed on an "AS IS" BASIS,
+ WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ See the License for the specific language governing permissions and
+ limitations under the License.
+ */
+
+/* stats.c: expose traffic server stats over http
+ */
+
+#include <stdio.h>
+#include <stdlib.h>
+#include <ctype.h>
+#include <limits.h>
+#include <ts/ts.h>
+#include <string.h>
+
+#include <inttypes.h>
+
+typedef struct stats_state_t
+{
+ TSVConn net_vc;
+ TSVIO read_vio;
+ TSVIO write_vio;
+
+ TSIOBuffer req_buffer;
+ TSIOBufferReader req_reader;
+
+ TSIOBuffer resp_buffer;
+ TSIOBufferReader resp_reader;
+
+ TSHttpTxn http_txnp;
+
+ int output_bytes;
+ int body_written;
+} stats_state;
+
+static void
+stats_cleanup(TSCont contp, stats_state * my_state)
+{
+ if (my_state->req_buffer) {
+ TSIOBufferDestroy(my_state->req_buffer);
+ my_state->req_buffer = NULL;
+ }
+
+ if (my_state->resp_buffer) {
+ TSIOBufferDestroy(my_state->resp_buffer);
+ my_state->resp_buffer = NULL;
+ }
+ TSVConnClose(my_state->net_vc);
+ TSfree(my_state);
+ TSContDestroy(contp);
+}
+
+static void
+stats_process_accept(TSCont contp, stats_state * my_state)
+{
+
+ my_state->req_buffer = TSIOBufferCreate();
+ my_state->req_reader = TSIOBufferReaderAlloc(my_state->req_buffer);
+ my_state->resp_buffer = TSIOBufferCreate();
+ my_state->resp_reader = TSIOBufferReaderAlloc(my_state->resp_buffer);
+ my_state->read_vio = TSVConnRead(my_state->net_vc, contp, my_state->req_buffer, INT_MAX);
+}
+
+static int
+stats_add_data_to_resp_buffer(const char *s, stats_state * my_state)
+{
+ int s_len = strlen(s);
+ char *buf = (char *) TSmalloc(s_len);
+
+ memcpy(buf, s, s_len);
+ TSIOBufferWrite(my_state->resp_buffer, buf, s_len);
+
+ TSfree(buf);
+ buf = NULL;
+ return s_len;
+}
+
+static int
+stats_add_resp_header(stats_state * my_state)
+{
+ char resp[] = "HTTP/1.0 200 Ok\r\n"
+ "Content-Type: text/javascript\r\nCache-Control: no-cache\r\n\r\n";
+ return stats_add_data_to_resp_buffer(resp, my_state);
+}
+
+static void
+stats_process_read(TSCont contp, TSEvent event, stats_state * my_state)
+{
+ TSDebug("istats", "stats_process_read(%d)", event);
+ if (event == TS_EVENT_VCONN_READ_READY) {
+ my_state->output_bytes = stats_add_resp_header(my_state);
+ TSVConnShutdown(my_state->net_vc, 1, 0);
+ my_state->write_vio = TSVConnWrite(my_state->net_vc, contp, my_state->resp_reader, INT_MAX);
+ } else if (event == TS_EVENT_ERROR) {
+ TSError("stats_process_read: Received TS_EVENT_ERROR\n");
+ } else if (event == TS_EVENT_VCONN_EOS) {
+ /* client may end the connection, simply return */
+ return;
+ } else if (event == TS_EVENT_NET_ACCEPT_FAILED) {
+ TSError("stats_process_read: Received TS_EVENT_NET_ACCEPT_FAILED\n");
+ } else {
+ printf("Unexpected Event %d\n", event);
+ TSReleaseAssert(!"Unexpected Event");
+ }
+}
+
+#define APPEND(a) my_state->output_bytes += stats_add_data_to_resp_buffer(a, my_state)
+#define APPEND_STAT(a, fmt, v) do { \
+ char b[256]; \
+ if(snprintf(b, sizeof(b), "\"%s\": \"" fmt "\",\n", a, v) < sizeof(b)) \
+ APPEND(b); \
+} while(0)
+
+static void
+json_out_stat(TSRecordType rec_type, void *edata, int registered,
+ const char *name, TSRecordDataType data_type,
+ TSRecordData *datum) {
+ stats_state *my_state = edata;
+
+ switch(data_type) {
+ case TS_RECORDDATATYPE_COUNTER:
+ APPEND_STAT(name, "%" PRIu64, datum->rec_counter); break;
+ case TS_RECORDDATATYPE_INT:
+ APPEND_STAT(name, "%" PRIu64, datum->rec_int); break;
+ case TS_RECORDDATATYPE_FLOAT:
+ APPEND_STAT(name, "%f", datum->rec_float); break;
+ case TS_RECORDDATATYPE_STRING:
+ APPEND_STAT(name, "%s", datum->rec_string); break;
+ default:
+ TSDebug("istats", "unkown type for %s: %d", name, data_type);
+ break;
+ }
+}
+static void
+json_out_stats(stats_state * my_state)
+{
+ const char *version;
+ APPEND("{ \"global\": {\n");
+
+ TSRecordDump(TS_RECORDTYPE_PROCESS, json_out_stat, my_state);
+ version = TSTrafficServerVersionGet();
+ APPEND("\"server\": \"");
+ APPEND(version);
+ APPEND("\"\n");
+ APPEND(" }\n}\n");
+}
+
+static void
+stats_process_write(TSCont contp, TSEvent event, stats_state * my_state)
+{
+ if (event == TS_EVENT_VCONN_WRITE_READY) {
+ if (my_state->body_written == 0) {
+ TSDebug("istats", "plugin adding response body");
+ my_state->body_written = 1;
+ json_out_stats(my_state);
+ TSVIONBytesSet(my_state->write_vio, my_state->output_bytes);
+ }
+ TSVIOReenable(my_state->write_vio);
+ } else if (TS_EVENT_VCONN_WRITE_COMPLETE) {
+ stats_cleanup(contp, my_state);
+ } else if (event == TS_EVENT_ERROR) {
+ TSError("stats_process_write: Received TS_EVENT_ERROR\n");
+ } else {
+ TSReleaseAssert(!"Unexpected Event");
+ }
+}
+
+static int
+stats_dostuff(TSCont contp, TSEvent event, void *edata)
+{
+ stats_state *my_state = TSContDataGet(contp);
+ if (event == TS_EVENT_NET_ACCEPT) {
+ my_state->net_vc = (TSVConn) edata;
+ stats_process_accept(contp, my_state);
+ } else if (edata == my_state->read_vio) {
+ stats_process_read(contp, event, my_state);
+ } else if (edata == my_state->write_vio) {
+ stats_process_write(contp, event, my_state);
+ } else {
+ TSReleaseAssert(!"Unexpected Event");
+ }
+ return 0;
+}
+static int
+stats_origin(TSCont contp, TSEvent event, void *edata)
+{
+ TSCont icontp;
+ stats_state *my_state;
+ TSHttpTxn txnp = (TSHttpTxn) edata;
+ TSMBuffer reqp;
+ TSMLoc hdr_loc = NULL, url_loc = NULL;
+ TSEvent reenable = TS_EVENT_HTTP_CONTINUE;
+
+ TSDebug("istats", "in the read stuff");
+
+ if (TSHttpTxnClientReqGet(txnp, &reqp, &hdr_loc) != TS_SUCCESS)
+ goto cleanup;
+
+ if (TSHttpHdrUrlGet(reqp, hdr_loc, &url_loc) != TS_SUCCESS)
+ goto cleanup;
+
+ int path_len = 0;
+ const char* path = TSUrlPathGet(reqp,url_loc,&path_len);
+ TSDebug("istats","Path: %.*s",path_len,path);
+
+ if (! (path_len != 0 && path_len == 6 && !memcmp(path,"_stats",6)) ) {
+ goto notforme;
+ }
+
+ TSSkipRemappingSet(txnp,1); //not strictly necessary, but speed is everything these days
+
+ /* This is us -- register our intercept */
+ TSDebug("istats", "Intercepting request");
+
+ icontp = TSContCreate(stats_dostuff, TSMutexCreate());
+ my_state = (stats_state *) TSmalloc(sizeof(*my_state));
+ memset(my_state, 0, sizeof(*my_state));
+ TSContDataSet(icontp, my_state);
+ TSHttpTxnIntercept(icontp, txnp);
+ goto cleanup;
+
+ notforme:
+
+ cleanup:
+#if (TS_VERSION_NUMBER < 2001005)
+ if(path) TSHandleStringRelease(reqp, url_loc, path);
+#endif
+ if(url_loc) TSHandleMLocRelease(reqp, hdr_loc, url_loc);
+ if(hdr_loc) TSHandleMLocRelease(reqp, TS_NULL_MLOC, hdr_loc);
+
+ TSHttpTxnReenable(txnp, reenable);
+ return 0;
+}
+
+int
+check_ts_version()
+{
+
+ const char *ts_version = TSTrafficServerVersionGet();
+ int result = 0;
+
+ if (ts_version) {
+ int major_ts_version = 0;
+ int minor_ts_version = 0;
+ int patch_ts_version = 0;
+
+ if (sscanf(ts_version, "%d.%d.%d", &major_ts_version, &minor_ts_version, &patch_ts_version) != 3) {
+ return 0;
+ }
+
+ /* Need at least TS 2.0 */
+ if (major_ts_version >= 2) {
+ result = 1;
+ }
+ }
+
+ return result;
+}
+
+void
+TSPluginInit(int argc, const char *argv[])
+{
+ TSPluginRegistrationInfo info;
+
+ info.plugin_name = "stats";
+ info.vendor_name = "Apache Software Foundation";
+ info.support_email = "jesus@omniti.com";
+
+ if (TSPluginRegister(TS_SDK_VERSION_2_0, &info) != TS_SUCCESS)
+ TSError("Plugin registration failed. \n");
+
+ if (!check_ts_version()) {
+ TSError("Plugin requires Traffic Server 2.0 or later\n");
+ return;
+ }
+
+ /* Create a continuation with a mutex as there is a shared global structure
+ containing the headers to add */
+ TSHttpHookAdd(TS_HTTP_READ_REQUEST_HDR_HOOK, TSContCreate(stats_origin, NULL));
+ TSDebug("istats", "stats module registered");
+}