-
/*
- * DEBUG: section 90 HTTP Cache Control Header
- * AUTHOR: Alex Rousskov
- * Robert Collins (Surrogate-Control is derived from
- * Cache-Control).
- * Francesco Chemolli (c++ refactoring)
- *
- * SQUID Web Proxy Cache http://www.squid-cache.org/
- * ----------------------------------------------------------
- *
- * Squid is the result of efforts by numerous individuals from
- * the Internet community; see the CONTRIBUTORS file for full
- * details. Many organizations have provided support for Squid's
- * development; see the SPONSORS file for full details. Squid is
- * Copyrighted (C) 2001 by the Regents of the University of
- * California; see the COPYRIGHT file for full details. Squid
- * incorporates software developed and/or copyrighted by other
- * sources; see the CREDITS file for full details.
- *
- * 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; either version 2 of the License, or
- * (at your option) any later version.
- *
- * This program 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 program; if not, write to the Free Software
- * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111, USA.
+ * Copyright (C) 1996-2020 The Squid Software Foundation and contributors
*
+ * Squid software is distributed under GPLv2+ license and includes
+ * contributions from numerous individuals and organizations.
+ * Please see the COPYING and CONTRIBUTORS files for details.
*/
+/* DEBUG: section 90 HTTP Cache Control Header */
+
#include "squid.h"
-#include "HttpHdrSc.h"
+#include "base/LookupTable.h"
+//#include "HttpHdrSc.h" // pulled in by HttpHdrScTarget.h
+#include "HttpHdrScTarget.h"
#include "HttpHeader.h"
-#include "HttpHeaderFieldInfo.h"
#include "HttpHeaderFieldStat.h"
#include "HttpHeaderStat.h"
#include "HttpHeaderTools.h"
#include "Store.h"
#include "StrList.h"
+#include "util.h"
#include <map>
-
-/* a row in the table used for parsing surrogate-control header and statistics */
-typedef struct {
- const char *name;
- http_hdr_sc_type id;
- HttpHeaderFieldStat stat;
-} HttpHeaderScFields;
+#include <vector>
/* this table is used for parsing surrogate control header */
/* order must match that of enum http_hdr_sc_type. The constraint is verified at initialization time */
-//todo: implement constraint
-static const HttpHeaderFieldAttrs ScAttrs[SC_ENUM_END] = {
- {"no-store", (http_hdr_type)SC_NO_STORE},
- {"no-store-remote", (http_hdr_type)SC_NO_STORE_REMOTE},
- {"max-age", (http_hdr_type)SC_MAX_AGE},
- {"content", (http_hdr_type)SC_CONTENT},
- {"Other,", (http_hdr_type)SC_OTHER} /* ',' will protect from matches */
+// TODO: implement constraint
+static const LookupTable<http_hdr_sc_type>::Record ScAttrs[] {
+ {"no-store", SC_NO_STORE},
+ {"no-store-remote", SC_NO_STORE_REMOTE},
+ {"max-age", SC_MAX_AGE},
+ {"content", SC_CONTENT},
+ {"Other,", SC_OTHER}, /* ',' will protect from matches */
+ {nullptr, SC_ENUM_END} /* SC_ENUM_END taken as invalid value */
};
+LookupTable<http_hdr_sc_type> scLookupTable(SC_ENUM_END, ScAttrs);
+std::vector<HttpHeaderFieldStat> scHeaderStats(SC_ENUM_END);
-HttpHeaderFieldInfo *ScFieldsInfo = NULL;
-
+// used when iterating over flags
http_hdr_sc_type &operator++ (http_hdr_sc_type &aHeader)
{
- int tmp = (int)aHeader;
- aHeader = (http_hdr_sc_type)(++tmp);
+ int tmp = static_cast<int>(aHeader);
+ aHeader = static_cast<http_hdr_sc_type>(++tmp);
return aHeader;
}
-int operator - (http_hdr_sc_type const &anSc, http_hdr_sc_type const &anSc2)
-{
- return (int)anSc - (int)anSc2;
-}
-
-/* module initialization */
-
void
httpHdrScInitModule(void)
{
- ScFieldsInfo = httpHeaderBuildFieldsInfo(ScAttrs, SC_ENUM_END);
-}
-
-void
-httpHdrScCleanModule(void)
-{
- httpHeaderDestroyFieldsInfo(ScFieldsInfo, SC_ENUM_END);
- ScFieldsInfo = NULL;
+ // check invariant on ScAttrs
+ for (int i = 0; ScAttrs[i].name != nullptr; ++i)
+ assert(i == ScAttrs[i].id);
}
/* implementation */
{
HttpHdrSc * sc=this;
const char *item;
- const char *p; /* '=' parameter */
+ const char *p; /* '=' parameter */
const char *pos = NULL;
const char *target = NULL; /* ;foo */
const char *temp = NULL; /* temp buffer */
- int type;
+ http_hdr_sc_type type;
int ilen, vlen;
int initiallen;
HttpHdrScTarget *sct;
++p;
}
- /* decrease ilen to still match the token for ';' qualified non '=' statments */
+ /* decrease ilen to still match the token for ';' qualified non '=' statements */
else if ((p = strchr(item, ';')) && (p - item < ilen)) {
ilen = p - item;
++p;
}
/* find type */
- /* TODO: use a type-safe map-based lookup */
- type = httpHeaderIdByName(item, ilen,
- ScFieldsInfo, SC_ENUM_END);
+ type = scLookupTable.lookup(SBuf(item,ilen));
- if (type < 0) {
+ if (type == SC_ENUM_END) {
debugs(90, 2, "hdr sc: unknown control-directive: near '" << item << "' in '" << str << "'");
type = SC_OTHER;
}
/* Is this a targeted directive? */
- /* TODO: remove the temporary useage and use memrchr and the information we have instead */
+ /* TODO: remove the temporary usage and use memrchr and the information we have instead */
temp = xstrndup (item, initiallen + 1);
if (!((target = strrchr (temp, ';')) && !strchr (target, '"') && *(target + 1) != '\0'))
safe_free (temp);
- if (sct->isSet(static_cast<http_hdr_sc_type>(type))) {
+ if (sct->isSet(type)) {
if (type != SC_OTHER)
debugs(90, 2, "hdr sc: ignoring duplicate control-directive: near '" << item << "' in '" << str << "'");
- ++ ScFieldsInfo[type].stat.repCount;
+ ++ scHeaderStats[type].repCount;
continue;
}
}
void
-HttpHdrScTarget::packInto(Packer * p) const
+HttpHdrScTarget::packInto(Packable * p) const
{
http_hdr_sc_type flag;
int pcount = 0;
if (isSet(flag) && flag != SC_OTHER) {
/* print option name */
- packerPrintf(p, (pcount ? ", " SQUIDSTRINGPH : SQUIDSTRINGPH),
- SQUIDSTRINGPRINT(ScFieldsInfo[flag].name));
+ p->appendf((pcount ? ", %s" : "%s"), ScAttrs[flag].name);
/* handle options with values */
if (flag == SC_MAX_AGE)
- packerPrintf(p, "=%d", (int) max_age);
+ p->appendf("=%d", (int) max_age);
if (flag == SC_CONTENT)
- packerPrintf(p, "=\"" SQUIDSTRINGPH "\"", SQUIDSTRINGPRINT(content_));
+ p->appendf("=\"" SQUIDSTRINGPH "\"", SQUIDSTRINGPRINT(content_));
++pcount;
}
}
if (hasTarget())
- packerPrintf (p, ";" SQUIDSTRINGPH, SQUIDSTRINGPRINT(target));
+ p->appendf(";" SQUIDSTRINGPH, SQUIDSTRINGPRINT(target));
}
void
-HttpHdrSc::packInto(Packer * p) const
+HttpHdrSc::packInto(Packable * p) const
{
dlink_node *node;
assert(p);
}
void
-httpHdrScTargetStatDumper(StoreEntry * sentry, int idx, double val, double size, int count)
+httpHdrScTargetStatDumper(StoreEntry * sentry, int, double val, double, int count)
{
extern const HttpHeaderStat *dump_stat; /* argh! */
const int id = (int) val;
- const int valid_id = id >= 0 && id < SC_ENUM_END;
- const char *name = valid_id ? ScFieldsInfo[id].name.termedBuf() : "INVALID";
+ const bool valid_id = id >= 0 && id < SC_ENUM_END;
+ const char *name = valid_id ? ScAttrs[id].name : "INVALID";
if (count || valid_id)
storeAppendPrintf(sentry, "%2d\t %-20s\t %5d\t %6.2f\n",
}
void
-httpHdrScStatDumper(StoreEntry * sentry, int idx, double val, double size, int count)
+httpHdrScStatDumper(StoreEntry * sentry, int, double val, double, int count)
{
- extern const HttpHeaderStat *dump_stat; /* argh! */
+ extern const HttpHeaderStat *dump_stat; /* argh! */
const int id = (int) val;
- const int valid_id = id >= 0 && id < SC_ENUM_END;
- const char *name = valid_id ? ScFieldsInfo[id].name.termedBuf() : "INVALID";
+ const bool valid_id = id >= 0 && id < SC_ENUM_END;
+ const char *name = valid_id ? ScAttrs[id].name : "INVALID";
if (count || valid_id)
storeAppendPrintf(sentry, "%2d\t %-20s\t %5d\t %6.2f\n",
return NULL;
}
+
+void
+HttpHdrSc::addTarget(HttpHdrScTarget *t) {
+ dlinkAdd(t, &t->node, &targets);
+}
+
+void
+HttpHdrSc::addTargetAtTail(HttpHdrScTarget *t) {
+ dlinkAddTail (t, &t->node, &targets);
+}
+
projects / thirdparty / squid.git / blobdiff