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Posted to commits@trafficserver.apache.org by zw...@apache.org on 2012/03/01 17:59:53 UTC
[2/2] TS-1124 moved these three plugins to main repo
http://git-wip-us.apache.org/repos/asf/trafficserver-plugins/blob/77b7d350/regex_remap/regex_remap.cc
----------------------------------------------------------------------
diff --git a/regex_remap/regex_remap.cc b/regex_remap/regex_remap.cc
deleted file mode 100644
index 53a9659..0000000
--- a/regex_remap/regex_remap.cc
+++ /dev/null
@@ -1,899 +0,0 @@
-/** @file
-
- ATS plugin to do (simple) regular expression remap rules
-
- @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.
-*/
-
-#define UNUSED __attribute__ ((unused))
-static char UNUSED rcsId__regex_remap_cc[] = "@(#) $Id$ built on " __DATE__ " " __TIME__;
-
-#include <sys/types.h>
-#include <stdio.h>
-#include <time.h>
-#include <string.h>
-#include <pcre.h>
-#include <ctype.h>
-#include <unistd.h>
-
-#include <ts/ts.h>
-#include <ts/remap.h>
-
-#include <iostream>
-#include <fstream>
-#include <string>
-
-
-static const char* PLUGIN_NAME = "regex_remap";
-
-// This is copied from lib/ts/*.h, only works with gcc 4.x or later (and compatible).
-// TODO: We really ought to expose these data types and atomic functions to the plugin APIs.
-typedef int int32;
-typedef volatile int32 vint32;
-typedef vint32 *pvint32;
-
-static inline int atomic_increment(pvint32 mem, int value)
-{
- return __sync_fetch_and_add(mem, value);
-}
-
-
-// Constants
-const int OVECCOUNT = 30; // We support $0 - $9 x2 ints, and this needs to be 1.5x that
-const int MAX_SUBS = 32; // No more than 32 substitution variables in the subst string
-
-// TODO: This should be "autoconf'ed" or something ...
-#define DEFAULT_PATH "/usr/local/etc/regex_remap/"
-
-// Substitutions other than regex matches
-enum ExtraSubstitutions {
- SUB_HOST = 11,
- SUB_FROM_HOST = 12,
- SUB_TO_HOST = 13,
- SUB_PORT = 14,
- SUB_SCHEME = 15,
- SUB_PATH = 16,
- SUB_QUERY = 17,
- SUB_MATRIX = 18,
- SUB_CLIENT_IP = 19,
-};
-
-
-///////////////////////////////////////////////////////////////////////////////
-// Class holding one request URL's component, to simplify the code and
-// length calculations (we need all of them).
-//
-struct UrlComponents
-{
- UrlComponents()
- : scheme(NULL), host(NULL), path(NULL), query(NULL), matrix(NULL), port(0),
- scheme_len(0), host_len(0), path_len(0), query_len(0), matrix_len(0), url_len(0)
- {}
-
- void populate(TSRemapRequestInfo *rri)
- {
- scheme = TSUrlSchemeGet(rri->requestBufp, rri->requestUrl, &scheme_len);
- host = TSUrlHostGet(rri->requestBufp, rri->requestUrl, &host_len);
- path = TSUrlPathGet(rri->requestBufp, rri->requestUrl, &path_len);
- query = TSUrlHttpQueryGet(rri->requestBufp, rri->requestUrl, &query_len);
- matrix = TSUrlHttpParamsGet(rri->requestBufp, rri->requestUrl, &matrix_len);
- port = TSUrlPortGet(rri->requestBufp, rri->requestUrl);
-
- url_len = scheme_len + host_len + path_len + query_len + matrix_len + 32;
- }
-
- const char* scheme;
- const char* host;
- const char* path;
- const char* query;
- const char* matrix;
- int port;
-
- int scheme_len;
- int host_len;
- int path_len;
- int query_len;
- int matrix_len;
-
- int url_len; // Full length, of all components
-};
-
-
-
-///////////////////////////////////////////////////////////////////////////////
-// Class encapsulating one regular expression (and the linked list).
-//
-class RemapRegex
-{
- public:
- RemapRegex(const std::string& reg, const std::string& sub, const std::string& opt) :
- _num_subs(-1), _rex(NULL), _extra(NULL), _order(-1), _simple(false),
- _active_timeout(-1), _no_activity_timeout(-1), _connect_timeout(-1), _dns_timeout(-1)
- {
- TSDebug(PLUGIN_NAME, "Calling constructor");
-
- _status = static_cast<TSHttpStatus>(0);
-
- if (!reg.empty()) {
- if (reg == ".") {
- TSDebug(PLUGIN_NAME, "Rule is simple, and fast!");
- _simple = true;
- }
- _rex_string = TSstrdup(reg.c_str());
- } else
- _rex_string = NULL;
-
- if (!sub.empty()) {
- _subst = TSstrdup(sub.c_str());
- _subst_len = sub.length();
- } else {
- _subst = NULL;
- _subst_len = 0;
- }
-
- _hits = 0;
-
- memset(_sub_pos, 0, sizeof(_sub_pos));
- memset(_sub_ix, 0, sizeof(_sub_ix));
- _next = NULL;
-
- // Parse options
- std::string::size_type start = opt.find_first_of("@");
- std::string::size_type pos1, pos2;
-
- while (start != std::string::npos) {
- std::string opt_val;
-
- ++start;
- pos1 = opt.find_first_of("=", start);
- if (pos1 == std::string::npos) {
- TSError("Malformed options: %s", opt.c_str());
- break;
- }
- ++pos1;
- pos2 = opt.find_first_of(" \t\n", pos1);
- if (pos2 == std::string::npos)
- pos2 = opt.length();
- opt_val = opt.substr(pos1, pos2-pos1);
-
- if (opt.compare(start, 6, "status") == 0) {
- _status = static_cast<TSHttpStatus>(atoi(opt_val.c_str()));
- } else if (opt.compare(start, 14, "active_timeout") == 0) {
- _active_timeout = atoi(opt_val.c_str());
- } else if (opt.compare(start, 19, "no_activity_timeout") == 0) {
- _no_activity_timeout = atoi(opt_val.c_str());
- } else if (opt.compare(start, 15, "connect_timeout") == 0) {
- _connect_timeout = atoi(opt_val.c_str());
- } else if (opt.compare(start, 11, "dns_timeout") == 0) {
- _dns_timeout = atoi(opt_val.c_str());
- } else {
- TSError("Unknown options: %s", opt.c_str());
- }
- start = opt.find_first_of("@", pos2);
- }
- };
-
- ~RemapRegex()
- {
- TSDebug(PLUGIN_NAME, "Calling destructor");
- if (_rex_string)
- TSfree(_rex_string);
- if (_subst)
- TSfree(_subst);
-
- if (_rex)
- pcre_free(_rex);
- if (_extra)
- pcre_free(_extra);
- };
-
- // For profiling information
- inline void
- print(int ix, int max, const char* now)
- {
- fprintf(stderr, "[%s]:\tRegex %d ( %s ): %.2f%%\n", now, ix, _rex_string, 100.0 * _hits / max);
- }
-
- inline void
- increment()
- {
- atomic_increment(&(_hits), 1);
- }
-
- // Compile and study the regular expression.
- int
- compile(const char** error, int* erroffset)
- {
- char* str;
- int ccount;
-
- _rex = pcre_compile(_rex_string, // the pattern
- 0, // default options
- error, // for error message
- erroffset, // for error offset
- NULL); // use default character tables
-
- if (NULL == _rex)
- return -1;
-
- _extra = pcre_study(_rex, 0, error);
- if ((_extra == NULL) && (*error != 0))
- return -1;
-
- if (pcre_fullinfo(_rex, _extra, PCRE_INFO_CAPTURECOUNT, &ccount) != 0)
- return -1;
-
- // Get some info for the string substitutions
- str = _subst;
- _num_subs = 0;
-
- while (str && *str) {
- if ((*str == '$')) {
- int ix = -1;
-
- if (isdigit(*(str+1))) {
- ix = *(str + 1) - '0';
- } else {
- switch (*(str + 1)) {
- case 'h':
- ix = SUB_HOST;
- break;
- case 'f':
- ix = SUB_FROM_HOST;
- break;
- case 't':
- ix = SUB_TO_HOST;
- break;
- case 'p':
- ix = SUB_PORT;
- break;
- case 's':
- ix = SUB_SCHEME;
- break;
- case 'P':
- ix = SUB_PATH;
- break;
- case 'q':
- ix = SUB_QUERY;
- break;
- case 'm':
- ix = SUB_MATRIX;
- break;
- case 'i':
- ix = SUB_CLIENT_IP;
- break;
- default:
- break;
- }
- }
-
- if (ix > -1) {
- if ((ix < 10) && (ix > ccount)) {
- TSDebug(PLUGIN_NAME, "Trying to use unavailable substitution, check the regex!");
- return -1; // No substitutions available other than $0
- }
-
- _sub_ix[_num_subs] = ix;
- _sub_pos[_num_subs] = (str - _subst);
- str += 2;
- ++_num_subs;
- } else { // Not a valid substitution character, so just ignore it
- ++str;
- }
- } else {
- ++str;
- }
- }
- return 0;
- };
-
- // Perform the regular expression matching against a string.
- int
- match(const char* str, int len, int ovector[])
- {
- return pcre_exec(_rex, // the compiled pattern
- _extra, // Extra data from study (maybe)
- str, // the subject string
- len, // the length of the subject
- 0, // start at offset 0 in the subject
- 0, // default options
- ovector, // output vector for substring information
- OVECCOUNT); // number of elements in the output vector
- };
-
- // Get the lengths of the matching string(s), taking into account variable substitutions.
- // We also calculate a total length for the new string, which is the max length the
- // substituted string can have (use it to allocate a buffer before calling substitute() ).
- int
- get_lengths(const int ovector[], int lengths[], TSRemapRequestInfo *rri, UrlComponents *req_url)
- {
- int len = _subst_len + 1; // Bigger then necessary
-
- for (int i=0; i < _num_subs; i++) {
- int ix = _sub_ix[i];
-
- if (ix < 10) {
- lengths[ix] = ovector[2*ix+1] - ovector[2*ix]; // -1 - -1 == 0
- len += lengths[ix];
- } else {
- int tmp_len;
-
- switch (ix) {
- case SUB_HOST:
- len += req_url->host_len;
- break;
- case SUB_FROM_HOST:
- TSUrlHostGet(rri->requestBufp, rri->mapFromUrl, &tmp_len);
- len += tmp_len;
- break;
- case SUB_TO_HOST:
- TSUrlHostGet(rri->requestBufp, rri->mapToUrl, &tmp_len);
- len += tmp_len;
- break;
- case SUB_PORT:
- len += 6; // One extra for snprintf()
- break;
- case SUB_SCHEME:
- len += req_url->scheme_len;
- break;
- case SUB_PATH:
- len += req_url->path_len;
- break;
- case SUB_QUERY:
- len += req_url->query_len;
- break;
- case SUB_MATRIX:
- len += req_url->matrix_len;
- break;
- case SUB_CLIENT_IP:
- len += 15; // Allow for 255.255.255.255
- break;
- default:
- break;
- }
- }
- }
-
- return len;
- };
-
- // Perform substitution on the $0 - $9 variables in the "src" string. $0 is the entire
- // regex that was matches, while $1 - $9 are the corresponding groups. Return the final
- // length of the string as written to dest (not including the trailing '0').
- int
- substitute(char dest[], const char *src, const int ovector[], const int lengths[],
- TSRemapRequestInfo *rri, UrlComponents *req_url, struct sockaddr const* addr)
- {
- if (_num_subs > 0) {
- char* p1 = dest;
- char* p2 = _subst;
- int prev = 0;
-
- for (int i=0; i < _num_subs; i++) {
- int ix = _sub_ix[i];
-
- memcpy(p1, p2, _sub_pos[i] - prev);
- p1 += (_sub_pos[i] - prev);
- if (ix < 10) {
- memcpy(p1, src + ovector[2*ix], lengths[ix]);
- p1 += lengths[ix];
- } else {
- const char* str = NULL;
- int len = 0;
-
- switch (ix) {
- case SUB_HOST:
- str = req_url->host;
- len = req_url->host_len;
- break;
- case SUB_FROM_HOST:
- str = TSUrlHostGet(rri->requestBufp, rri->mapFromUrl, &len);
- break;
- case SUB_TO_HOST:
- str = TSUrlHostGet(rri->requestBufp, rri->mapToUrl, &len);
- break;
- case SUB_PORT:
- p1 += snprintf(p1, 6, "%u", req_url->port);
- break;
- case SUB_SCHEME:
- str = req_url->scheme;
- len = req_url->scheme_len;
- break;
- case SUB_PATH:
- str = req_url->path;
- len = req_url->path_len;
- break;
- case SUB_QUERY:
- str = req_url->query;
- len = req_url->query_len;
- break;
- case SUB_MATRIX:
- str = req_url->matrix;
- len = req_url->matrix_len;
- break;
- case SUB_CLIENT_IP:
- {
- // TODO: Finish implementing with the addr from above
- // p1 += snprintf(p1, 15, "%d.%d.%d.%d", ip[0], ip[1], ip[2], ip[3]);
- }
- break;
- default:
- break;
- }
- // If one of the rules fetched a read-only string, copy it in.
- if (str && len > 0) {
- memcpy(p1, str, len);
- p1 += len;
- }
- }
- p2 += (_sub_pos[i] - prev + 2);
- prev = _sub_pos[i] + 2;
- }
- memcpy(p1, p2, _subst_len - (p2 - _subst));
- p1 += _subst_len - (p2 - _subst);
- *p1 = 0; // Make sure it's NULL terminated (for safety).
- return p1 - dest;
- } else {
- memcpy(dest, _subst, _subst_len + 1); // No substitutions in the string, copy it all
- return _subst_len;
- }
-
- return 0; // Shouldn't happen.
- };
-
- // setter / getters for members the linked list.
- inline void set_next(RemapRegex* next) { _next = next; };
- inline RemapRegex* next() const { return _next; };
-
- // setter / getters for order number within the linked list
- inline void set_order(int order) { _order = order; };
- inline int order() { return _order; };
-
- // Various getters
- inline const char* regex() const { return _rex_string; };
- inline const char* substitution() const { return _subst; };
- inline int substitutions_used() const { return _num_subs; }
-
- inline bool is_simple() const { return _simple; }
-
- inline TSHttpStatus status_option() const { return _status; };
- inline int active_timeout_option() const { return _active_timeout; };
- inline int no_activity_timeout_option() const { return _no_activity_timeout; };
- inline int connect_timeout_option() const { return _connect_timeout; };
- inline int dns_timeout_option() const { return _dns_timeout; };
-
- private:
- char* _rex_string;
- char* _subst;
- int _subst_len;
- int _num_subs;
- int _hits;
-
- pcre* _rex;
- pcre_extra* _extra;
- int _sub_pos[MAX_SUBS];
- int _sub_ix[MAX_SUBS];
- RemapRegex* _next;
- int _order;
- TSHttpStatus _status;
- bool _simple;
- int _active_timeout;
- int _no_activity_timeout;
- int _connect_timeout;
- int _dns_timeout;
-};
-
-struct RemapInstance
-{
- RemapInstance() :
- first(NULL), last(NULL), profile(false), method(false), query_string(true),
- matrix_params(false), hits(0), misses(0),
- filename("unknown")
- { };
-
- RemapRegex* first;
- RemapRegex* last;
- bool profile;
- bool method;
- bool query_string;
- bool matrix_params;
- int hits;
- int misses;
- std::string filename;
-};
-
-///////////////////////////////////////////////////////////////////////////////
-// Helpers for memory management (to make sure pcre uses the TS APIs).
-//
-inline void*
-ts_malloc(size_t s)
-{
- return TSmalloc(s);
-}
-
-inline void
-ts_free(void *s)
-{
- return TSfree(s);
-}
-
-void
-setup_memory_allocation()
-{
- pcre_malloc = &ts_malloc;
- pcre_free = &ts_free;
-}
-
-
-///////////////////////////////////////////////////////////////////////////////
-// Initialize the plugin.
-//
-TSReturnCode
-TSRemapInit(TSRemapInterface* api_info, char *errbuf, int errbuf_size)
-{
- if (!api_info) {
- strncpy(errbuf, "[tsremap_init] - Invalid TSRemapInterface argument", errbuf_size - 1);
- return TS_ERROR;
- }
-
- if (api_info->tsremap_version < TSREMAP_VERSION) {
- snprintf(errbuf, errbuf_size - 1, "[TSRemapInit] - Incorrect API version %ld.%ld",
- api_info->tsremap_version >> 16, (api_info->tsremap_version & 0xffff));
- return TS_ERROR;
- }
-
- setup_memory_allocation();
- TSDebug(PLUGIN_NAME, "plugin is succesfully initialized");
- return TS_SUCCESS;
-}
-
-
-///////////////////////////////////////////////////////////////////////////////
-// We don't have any specific "instances" here, at least not yet.
-//
-TSReturnCode
-TSRemapNewInstance(int argc, char* argv[], void** ih, char* errbuf, int errbuf_size)
-{
- const char* error;
- int erroffset;
- RemapInstance* ri = new RemapInstance();
-
- std::ifstream f;
- int lineno = 0;
- int count = 0;
-
- *ih = (void*)ri;
- if (ri == NULL) {
- TSError("Unable to create remap instance");
- return TS_ERROR;
- }
-
- // Really simple (e.g. basic) config parser
- for (int i=2; i < argc; ++i) {
- if (strncmp(argv[i], "profile", 7) == 0) {
- ri->profile = true;
- } else if (strncmp(argv[i], "no-profile", 10) == 0) {
- ri->profile = false;
- } else if (strncmp(argv[i], "method", 6) == 0) {
- ri->method = true;
- } else if (strncmp(argv[i], "no-method", 9) == 0) {
- ri->method = true;
- } else if (strncmp(argv[i], "query-string", 12) == 0) {
- ri->query_string = true;
- } else if (strncmp(argv[i], "no-query-string", 15) == 0) {
- ri->query_string = false;
- } else if (strncmp(argv[i], "matrix-parameters", 15) == 0) {
- ri->matrix_params = true;
- } else if (strncmp(argv[i], "no-matrix-parameters", 18) == 0) {
- ri->matrix_params = false;
- } else {
- if (0 != access(argv[2], R_OK)) {
- ri->filename = DEFAULT_PATH;
- ri->filename += argv[2];
- } else {
- ri->filename = argv[2];
- }
-
- f.open((ri->filename).c_str(), std::ios::in);
- if (!f.is_open()) { // Try with the default path instead
- TSError("unable to open %s", (ri->filename).c_str());
- return TS_ERROR;
- }
- TSDebug(PLUGIN_NAME, "loading regular expression maps from %s", (ri->filename).c_str());
-
- while (!f.eof()) {
- std::string line, regex, subst, options;
- std::string::size_type pos1, pos2;
-
- getline(f, line);
- ++lineno;
- if (line.empty())
- continue;
- pos1 = line.find_first_not_of(" \t\n");
- if (line[pos1] == '#')
- continue; // Skip comment lines
-
- if (pos1 != std::string::npos) {
- pos2 = line.find_first_of(" \t\n", pos1);
- if (pos2 != std::string::npos) {
- regex = line.substr(pos1, pos2-pos1);
- pos1 = line.find_first_not_of(" \t\n#", pos2);
- if (pos1 != std::string::npos) {
- pos2 = line.find_first_of(" \t\n", pos1);
- if (pos2 == std::string::npos)
- pos2 = line.length();
- subst = line.substr(pos1, pos2-pos1);
- pos1 = line.find_first_not_of(" \t\n#", pos2);
- if (pos1 != std::string::npos) {
- pos2 = line.find_first_of("\n#", pos1);
- if (pos2 == std::string::npos)
- pos2 = line.length();
- options = line.substr(pos1, pos2-pos1);
- }
- }
- }
- }
-
- if (regex.empty()) {
- // No regex found on this line
- TSError("no regexp found in %s: line %d", (ri->filename).c_str(), lineno);
- continue;
- }
- if (subst.empty() && options.empty()) {
- // No substitution found on this line (and no options)
- TSError("no substitution string found in %s: line %d", (ri->filename).c_str(), lineno);
- continue;
- }
-
- // Got a regex and substitution string
- RemapRegex* cur = new RemapRegex(regex, subst, options);
-
- if (cur == NULL) {
- TSError("can't create a new regex remap rule");
- continue;
- }
-
- if (cur->compile(&error, &erroffset) < 0) {
- TSError("PCRE failed in %s (line %d) at offset %d: %s", (ri->filename).c_str(), lineno, erroffset, error);
- delete(cur);
- } else {
- TSDebug(PLUGIN_NAME, "added regex=%s with substitution=%s and options `%s'",
- regex.c_str(), subst.c_str(), options.c_str());
- cur->set_order(++count);
- if (ri->first == NULL)
- ri->first = cur;
- else
- ri->last->set_next(cur);
- ri->last = cur;
- }
- }
- }
- }
-
- // Make sure we got something...
- if (ri->first == NULL) {
- TSError("Got no regular expressions from the maps");
- return TS_ERROR;
- }
-
- return TS_SUCCESS;
-}
-
-
-void
-TSRemapDeleteInstance(void* ih)
-{
- RemapInstance* ri = static_cast<RemapInstance*>(ih);
- RemapRegex* re;
- RemapRegex* tmp;
-
- if (ri->profile) {
- char now[64];
- time_t tim = time(NULL);
-
- if (ctime_r(&tim, now))
- now[strlen(now) - 1] = '\0';
- else {
- memcpy(now, "unknown time", 12);
- *(now + 12) = '\0';
- }
-
- fprintf(stderr, "[%s]: Profiling information for regex_remap file `%s':\n", now, (ri->filename).c_str());
- fprintf(stderr, "[%s]:\tTotal hits (matches): %d\n", now, ri->hits);
- fprintf(stderr, "[%s]:\tTotal missed (no regex matches): %d\n", now, ri->misses);
-
- if (ri->hits > 0) { // Avoid divide by zeros...
- int ix = 1;
-
- re = ri->first;
- while (re) {
- re->print(ix, ri->hits, now);
- re = re->next();
- ++ix;
- }
- }
- }
-
- re = ri->first;
- while (re) {
- tmp = re;
- re = re->next();
- delete tmp;
- }
-
- delete ri;
-}
-
-
-///////////////////////////////////////////////////////////////////////////////
-// This is the main "entry" point for the plugin, called for every request.
-//
-TSRemapStatus
-TSRemapDoRemap(void* ih, TSHttpTxn txnp, TSRemapRequestInfo *rri)
-{
- if (NULL == ih) {
- TSDebug(PLUGIN_NAME, "Falling back to default URL on regex remap without rules");
- return TSREMAP_NO_REMAP;
- }
-
- // Populate the request url
- UrlComponents req_url;
- req_url.populate(rri);
-
- RemapInstance* ri = (RemapInstance*)ih;
- int ovector[OVECCOUNT];
- int lengths[OVECCOUNT/2 + 1];
- int dest_len;
- TSRemapStatus retval = TSREMAP_DID_REMAP;
- RemapRegex* re = ri->first;
- char match_buf[req_url.url_len + 32]; // Worst case scenario and padded for /,? and ;
- int match_len = 0;
-
- if (ri->method) { // Prepend the URI path or URL with the HTTP method
- TSMBuffer mBuf;
- TSMLoc reqHttpHdrLoc;
- const char *method;
-
- // Note that Method can not be longer than 16 bytes, or we'll simply truncate it
- if (TS_SUCCESS == TSHttpTxnClientReqGet(static_cast<TSHttpTxn>(txnp), &mBuf, &reqHttpHdrLoc)) {
- method = TSHttpHdrMethodGet(mBuf, reqHttpHdrLoc, &match_len);
- if (method && (match_len > 0)) {
- if (match_len > 16)
- match_len = 16;
- memcpy(match_buf, method, match_len);
- }
- }
- }
-
- *(match_buf + match_len) = '/';
- if (req_url.path && req_url.path_len > 0) {
- memcpy(match_buf + match_len + 1, req_url.path, req_url.path_len);
- match_len += (req_url.path_len + 1);
- }
-
- if (ri->matrix_params && req_url.matrix && req_url.matrix_len > 0) {
- *(match_buf + match_len) = ';';
- memcpy(match_buf + match_len + 1 , req_url.matrix, req_url.matrix_len);
- match_len += (req_url.matrix_len + 1);
- }
-
- if (ri->query_string && req_url.query && req_url.query_len > 0) {
- *(match_buf + match_len) = '?';
- memcpy(match_buf + match_len + 1 , req_url.query, req_url.query_len);
- match_len += (req_url.query_len + 1);
- }
- match_buf[match_len] = '\0'; // NULL terminate the match string
- TSDebug(PLUGIN_NAME, "Target match string is `%s'", match_buf);
-
- // Apply the regular expressions, in order. First one wins.
- while (re) {
- // Since we check substitutions on parse time, we don't need to reset ovector
- if (re->is_simple() || (re->match(match_buf, match_len, ovector) != -1)) {
- int new_len = re->get_lengths(ovector, lengths, rri, &req_url);
-
- // Set timeouts
- if (re->active_timeout_option() > (-1)) {
- TSDebug(PLUGIN_NAME, "Setting active timeout to %d", re->active_timeout_option());
- TSHttpTxnActiveTimeoutSet(txnp, re->active_timeout_option());
- }
- if (re->no_activity_timeout_option() > (-1)) {
- TSDebug(PLUGIN_NAME, "Setting no activity timeout to %d", re->no_activity_timeout_option());
- TSHttpTxnNoActivityTimeoutSet(txnp, re->no_activity_timeout_option());
- }
- if (re->connect_timeout_option() > (-1)) {
- TSDebug(PLUGIN_NAME, "Setting connect timeout to %d", re->connect_timeout_option());
- TSHttpTxnConnectTimeoutSet(txnp, re->connect_timeout_option());
- }
- if (re->dns_timeout_option() > (-1)) {
- TSDebug(PLUGIN_NAME, "Setting DNS timeout to %d", re->dns_timeout_option());
- TSHttpTxnDNSTimeoutSet(txnp, re->dns_timeout_option());
- }
-
- // Update profiling if requested
- if (ri->profile) {
- re->increment();
- atomic_increment(&(ri->hits), 1);
- }
-
- if (new_len > 0) {
- char dest[new_len+8];
- struct sockaddr const* addr = TSHttpTxnClientAddrGet(txnp);
-
- dest_len = re->substitute(dest, match_buf, ovector, lengths, rri, &req_url, addr);
-
- TSDebug(PLUGIN_NAME, "New URL is estimated to be %d bytes long, or less", new_len);
- TSDebug(PLUGIN_NAME, "New URL is %s (length %d)", dest, dest_len);
- TSDebug(PLUGIN_NAME, " matched rule %d [%s]", re->order(), re->regex());
-
- // Check for a quick response, if the status option is set
- if (re->status_option() > 0) {
- if (re->status_option() != TS_HTTP_STATUS_MOVED_PERMANENTLY &&
- re->status_option() != TS_HTTP_STATUS_MOVED_TEMPORARILY) {
- // Don't set the URL / Location for this.
- TSHttpTxnSetHttpRetStatus(txnp, re->status_option());
- break;
- }
-
- TSDebug(PLUGIN_NAME, "Redirecting URL, status=%d", re->status_option());
- TSHttpTxnSetHttpRetStatus(txnp, re->status_option());
- rri->redirect = 1;
- }
-
- // Now parse the new URL, which can also be the redirect URL
- if (dest_len > 0) {
- const char *start = dest;
-
- // Setup the new URL
- if (TS_PARSE_ERROR == TSUrlParse(rri->requestBufp, rri->requestUrl, &start, start + dest_len)) {
- TSHttpTxnSetHttpRetStatus(txnp, TS_HTTP_STATUS_INTERNAL_SERVER_ERROR);
- TSError("can't parse substituted URL string");
- }
- }
- break;
- }
- }
-
- // Try the next regex
- re = re->next();
- if (re == NULL) {
- retval = TSREMAP_NO_REMAP; // No match
- if (ri->profile)
- atomic_increment(&(ri->misses), 1);
- }
- }
-
- return retval;
-}
-
-
-
-/*
- local variables:
- mode: C++
- indent-tabs-mode: nil
- c-basic-offset: 2
- c-comment-only-line-offset: 0
- c-file-offsets: ((statement-block-intro . +)
- (label . 0)
- (statement-cont . +)
- (innamespace . 0))
- end:
-
- Indent with: /usr/bin/indent -ncs -nut -npcs -l 120 logstats.cc
-*/
http://git-wip-us.apache.org/repos/asf/trafficserver-plugins/blob/77b7d350/stats_over_http/.gitignore
----------------------------------------------------------------------
diff --git a/stats_over_http/.gitignore b/stats_over_http/.gitignore
deleted file mode 100644
index c1c0bc2..0000000
--- a/stats_over_http/.gitignore
+++ /dev/null
@@ -1,9 +0,0 @@
-*.o
-*.a
-*.so
-*.in
-*~
-*.tar.gz
-*.lo
-*.la
-.deps
http://git-wip-us.apache.org/repos/asf/trafficserver-plugins/blob/77b7d350/stats_over_http/CHANGES
----------------------------------------------------------------------
diff --git a/stats_over_http/CHANGES b/stats_over_http/CHANGES
deleted file mode 100644
index 638d151..0000000
--- a/stats_over_http/CHANGES
+++ /dev/null
@@ -1,5 +0,0 @@
- -*- 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-plugins/blob/77b7d350/stats_over_http/LICENSE
----------------------------------------------------------------------
diff --git a/stats_over_http/LICENSE b/stats_over_http/LICENSE
deleted file mode 100644
index bed90de..0000000
--- a/stats_over_http/LICENSE
+++ /dev/null
@@ -1,404 +0,0 @@
-
- Apache License
- Version 2.0, January 2004
- http://www.apache.org/licenses/
-
- TERMS AND CONDITIONS FOR USE, REPRODUCTION, AND DISTRIBUTION
-
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-
-Copyright (C) 1997 - 2002, Makoto Matsumoto and Takuji Nishimura,
-All rights reserved.
-
-Redistribution and use in source and binary forms, with or without
-modification, are permitted provided that the following conditions
-are met:
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- 1. Redistributions of source code must retain the above copyright
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-PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
-LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
-NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
-SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
-
-Any feedback is very welcome.
-http://www.math.sci.hiroshima-u.ac.jp/~m-mat/MT/emt.html
-email: m-mat @ math.sci.hiroshima-u.ac.jp (remove space)
-
-~~~
-
-TK 8.3 License
-
-This software is copyrighted by the Regents of the University of
-California, Sun Microsystems, Inc., and other parties. The following
-terms apply to all files associated with the software unless explicitly
-disclaimed in individual files.
-
-The authors hereby grant permission to use, copy, modify, distribute,
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-that existing copyright notices are retained in all copies and that this
-notice is included verbatim in any distributions. No written agreement,
-license, or royalty fee is required for any of the authorized uses.
-Modifications to this software may be copyrighted by their authors
-and need not follow the licensing terms described here, provided that
-the new terms are clearly indicated on the first page of each file where
-they apply.
-
-IN NO EVENT SHALL THE AUTHORS OR DISTRIBUTORS BE LIABLE TO ANY PARTY
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-POSSIBILITY OF SUCH DAMAGE.
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-THE AUTHORS AND DISTRIBUTORS SPECIFICALLY DISCLAIM ANY WARRANTIES,
-INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY,
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-IS PROVIDED ON AN "AS IS" BASIS, AND THE AUTHORS AND DISTRIBUTORS HAVE
-NO OBLIGATION TO PROVIDE MAINTENANCE, SUPPORT, UPDATES, ENHANCEMENTS, OR
-MODIFICATIONS.
-
-GOVERNMENT USE: If you are acquiring this software on behalf of the
-U.S. government, the Government shall have only "Restricted Rights"
-in the software and related documentation as defined in the Federal
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-are acquiring the software on behalf of the Department of Defense, the
-software shall be classified as "Commercial Computer Software" and the
-Government shall have only "Restricted Rights" as defined in Clause
-252.227-7013 (c) (1) of DFARs. Notwithstanding the foregoing, the
-authors grant the U.S. Government and others acting in its behalf
-permission to use and distribute the software in accordance with the
-terms specified in this license.
-
-~~~
-
-BIND license
-
-Copyright (c) 1985, 1989, 1993
- The Regents of the University of California. All rights reserved.
-
-Redistribution and use in source and binary forms, with or without
-modification, are permitted provided that the following conditions
-are met:
-1. Redistributions of source code must retain the above copyright
- notice, this list of conditions and the following disclaimer.
-2. Redistributions in binary form must reproduce the above copyright
- notice, this list of conditions and the following disclaimer in the
- documentation and/or other materials provided with the distribution.
-3. Neither the name of the University nor the names of its contributors
- may be used to endorse or promote products derived from this software
- without specific prior written permission.
-
-THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
-ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
-IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
-ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
-FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
-DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
-OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
-HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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-SUCH DAMAGE.
-
-
-
-Portions Copyright (c) 1993 by Digital Equipment Corporation.
-
-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, and that
-the name of Digital Equipment Corporation not be used in advertising or
-publicity pertaining to distribution of the document or software without
-specific, written prior permission.
-
-THE SOFTWARE IS PROVIDED "AS IS" AND DIGITAL EQUIPMENT CORP. DISCLAIMS ALL
-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.
-
-THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
-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.
-
-THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
-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-plugins/blob/77b7d350/stats_over_http/Makefile
----------------------------------------------------------------------
diff --git a/stats_over_http/Makefile b/stats_over_http/Makefile
deleted file mode 100644
index d970e1d..0000000
--- a/stats_over_http/Makefile
+++ /dev/null
@@ -1,25 +0,0 @@
-# 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 -f *.lo *.so
http://git-wip-us.apache.org/repos/asf/trafficserver-plugins/blob/77b7d350/stats_over_http/NOTICE
----------------------------------------------------------------------
diff --git a/stats_over_http/NOTICE b/stats_over_http/NOTICE
deleted file mode 100644
index c19f064..0000000
--- a/stats_over_http/NOTICE
+++ /dev/null
@@ -1,5 +0,0 @@
-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-plugins/blob/77b7d350/stats_over_http/README
----------------------------------------------------------------------
diff --git a/stats_over_http/README b/stats_over_http/README
deleted file mode 100644
index 03718af..0000000
--- a/stats_over_http/README
+++ /dev/null
@@ -1,10 +0,0 @@
-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-plugins/blob/77b7d350/stats_over_http/stats_over_http.c
----------------------------------------------------------------------
diff --git a/stats_over_http/stats_over_http.c b/stats_over_http/stats_over_http.c
deleted file mode 100644
index f6c3f14..0000000
--- a/stats_over_http/stats_over_http.c
+++ /dev/null
@@ -1,290 +0,0 @@
-/** @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;
- TSIOBuffer resp_buffer;
- TSIOBufferReader resp_reader;
-
- 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->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, INT64_MAX);
-}
-
-static int
-stats_add_data_to_resp_buffer(const char *s, stats_state * my_state)
-{
- int s_len = strlen(s);
-
- TSIOBufferWrite(my_state->resp_buffer, s, s_len);
-
- 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");
-}