delete app

Change-Id: Id4c572809969ebe89e946e88063eaed262cff3f2
Signed-off-by: hongbotian <hongbo.tianhongbo@huawei.com>

1 files changed, 0 insertions, 575 deletions

diff --git a/rubbos/app/httpd-2.0.64/modules/experimental/cache_util.c b/rubbos/app/httpd-2.0.64/modules/experimental/cache_util.c
deleted file mode 100644
index 9782cb7b..00000000
--- a/rubbos/app/httpd-2.0.64/modules/experimental/cache_util.c
+++ /dev/null
@@ -1,575 +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.
- */
-
-#define CORE_PRIVATE
-
-#include "mod_cache.h"
-
-#include <ap_provider.h>
-
-/* -------------------------------------------------------------- */
-
-extern module AP_MODULE_DECLARE_DATA cache_module;
-
-/* return true if the request is conditional */
-CACHE_DECLARE(int) ap_cache_request_is_conditional(apr_table_t *table)
-{
-    if (apr_table_get(table, "If-Match") ||
-        apr_table_get(table, "If-None-Match") ||
-        apr_table_get(table, "If-Modified-Since") ||
-        apr_table_get(table, "If-Unmodified-Since")) {
-        return 1;
-    }
-    return 0;
-}
-
-CACHE_DECLARE(cache_provider_list *)ap_cache_get_providers(request_rec *r,
-                                                  cache_server_conf *conf, 
-                                                  const char *url)
-{
-    cache_provider_list *providers = NULL;
-    int i;
-
-    /* we can't cache if there's no URL */
-    /* Is this case even possible?? */
-    if (!url) return NULL;
-
-    /* loop through all the cacheenable entries */
-    for (i = 0; i < conf->cacheenable->nelts; i++) {
-        struct cache_enable *ent = 
-                                (struct cache_enable *)conf->cacheenable->elts;
-        if ((ent[i].url) && !strncasecmp(url, ent[i].url, ent[i].urllen)) {
-            /* Fetch from global config and add to the list. */
-            cache_provider *provider;
-            provider = ap_lookup_provider(CACHE_PROVIDER_GROUP, ent[i].type,
-                                          "0");
-            if (!provider) {
-                /* Log an error! */
-            }
-            else {
-                cache_provider_list *newp;
-                newp = apr_pcalloc(r->pool, sizeof(cache_provider_list));
-                newp->provider_name = ent[i].type;
-                newp->provider = provider;
-
-                if (!providers) {
-                    providers = newp;
-                }
-                else {
-                    cache_provider_list *last = providers;
-
-                    while (last->next) {
-                        last = last->next;
-                    }
-                    last->next = newp;
-                }
-            }
-        }
-    }
-
-    /* then loop through all the cachedisable entries
-     * Looking for urls that contain the full cachedisable url and possibly
-     * more.
-     * This means we are disabling cachedisable url and below...
-     */
-    for (i = 0; i < conf->cachedisable->nelts; i++) {
-        struct cache_disable *ent = 
-                               (struct cache_disable *)conf->cachedisable->elts;
-        if ((ent[i].url) && !strncasecmp(url, ent[i].url, ent[i].urllen)) {
-            /* Stop searching now. */
-            return NULL;
-        }
-    }
-
-    return providers;
-}
-
-
-/* do a HTTP/1.1 age calculation */
-CACHE_DECLARE(apr_int64_t) ap_cache_current_age(cache_info *info,
-                                                const apr_time_t age_value,
-                                                apr_time_t now)
-{
-    apr_time_t apparent_age, corrected_received_age, response_delay,
-               corrected_initial_age, resident_time, current_age,
-               age_value_usec;
-
-    age_value_usec = apr_time_from_sec(age_value);
-
-    /* Perform an HTTP/1.1 age calculation. (RFC2616 13.2.3) */
-
-    apparent_age = MAX(0, info->response_time - info->date);
-    corrected_received_age = MAX(apparent_age, age_value_usec);
-    response_delay = info->response_time - info->request_time;
-    corrected_initial_age = corrected_received_age + response_delay;
-    resident_time = now - info->response_time;
-    current_age = corrected_initial_age + resident_time;
-
-    return apr_time_sec(current_age);
-}
-
-CACHE_DECLARE(int) ap_cache_check_freshness(cache_handle_t *h,
-                                            request_rec *r)
-{
-    apr_int64_t age, maxage_req, maxage_cresp, maxage, smaxage, maxstale;
-    apr_int64_t minfresh;
-    int age_in_errhdr = 0;
-    const char *cc_cresp, *cc_ceresp, *cc_req;
-    const char *agestr = NULL;
-    const char *expstr = NULL;
-    char *val;
-    apr_time_t age_c = 0;
-    cache_info *info = &(h->cache_obj->info);
-
-    /*
-     * We now want to check if our cached data is still fresh. This depends
-     * on a few things, in this order:
-     *
-     * - RFC2616 14.9.4 End to end reload, Cache-Control: no-cache. no-cache in
-     * either the request or the cached response means that we must
-     * revalidate the request unconditionally, overriding any expiration
-     * mechanism. It's equivalent to max-age=0,must-revalidate.
-     * 
-     * - RFC2616 14.32 Pragma: no-cache This is treated the same as
-     * Cache-Control: no-cache.
-     * 
-     * - RFC2616 14.9.3 Cache-Control: max-stale, must-revalidate,
-     * proxy-revalidate if the max-stale request header exists, modify the
-     * stale calculations below so that an object can be at most <max-stale>
-     * seconds stale before we request a revalidation, _UNLESS_ a
-     * must-revalidate or proxy-revalidate cached response header exists to
-     * stop us doing this.
-     * 
-     * - RFC2616 14.9.3 Cache-Control: s-maxage the origin server specifies the
-     * maximum age an object can be before it is considered stale. This
-     * directive has the effect of proxy|must revalidate, which in turn means
-     * simple ignore any max-stale setting.
-     * 
-     * - RFC2616 14.9.4 Cache-Control: max-age this header can appear in both
-     * requests and responses. If both are specified, the smaller of the two
-     * takes priority.
-     * 
-     * - RFC2616 14.21 Expires: if this request header exists in the cached
-     * entity, and it's value is in the past, it has expired.
-     * 
-     */
-    cc_cresp = apr_table_get(h->resp_hdrs, "Cache-Control");
-    cc_ceresp = apr_table_get(h->resp_err_hdrs, "Cache-Control");
-    cc_req = apr_table_get(h->req_hdrs, "Cache-Control");
-
-    if ((agestr = apr_table_get(h->resp_hdrs, "Age"))) {
-        age_c = apr_atoi64(agestr);
-    }
-    else if ((agestr = apr_table_get(h->resp_err_hdrs, "Age"))) {
-        age_c = apr_atoi64(agestr);
-        age_in_errhdr = 1;
-    }
-
-    if (!(expstr = apr_table_get(h->resp_err_hdrs, "Expires"))) {
-        expstr = apr_table_get(h->resp_hdrs, "Expires");
-    }
-
-    /* calculate age of object */
-    age = ap_cache_current_age(info, age_c, r->request_time);
-
-    /* extract s-maxage */
-    if (cc_cresp && ap_cache_liststr(r->pool, cc_cresp, "s-maxage", &val)
-        && val != NULL) {
-        smaxage = apr_atoi64(val);
-    }
-    else if (cc_ceresp && ap_cache_liststr(r->pool, cc_ceresp, "s-maxage", &val)) {
-        smaxage = apr_atoi64(val);
-    }
-    else {
-        smaxage = -1;
-    }
-
-    /* extract max-age from request */
-    if (cc_req && ap_cache_liststr(r->pool, cc_req, "max-age", &val)
-        && val != NULL) {
-        maxage_req = apr_atoi64(val);
-    }
-    else {
-        maxage_req = -1;
-    }
-
-    /* extract max-age from response */
-    if (cc_cresp && ap_cache_liststr(r->pool, cc_cresp, "max-age", &val)
-        && val != NULL) {
-        maxage_cresp = apr_atoi64(val);
-    }
-    else if (cc_ceresp && ap_cache_liststr(r->pool, cc_ceresp, "max-age", &val)) {
-        maxage_cresp = apr_atoi64(val);
-    }
-    else
-    {
-        maxage_cresp = -1;
-    }
-
-    /*
-     * if both maxage request and response, the smaller one takes priority
-     */
-    if (-1 == maxage_req) {
-        maxage = maxage_cresp;
-    }
-    else if (-1 == maxage_cresp) {
-        maxage = maxage_req;
-    }
-    else {
-        maxage = MIN(maxage_req, maxage_cresp);
-    }
-
-    /* extract max-stale */
-    if (cc_req && ap_cache_liststr(r->pool, cc_req, "max-stale", &val)) {
-        if(val != NULL) {
-            maxstale = apr_atoi64(val);
-        }
-        else {
-            /*
-             * If no value is assigned to max-stale, then the client is willing
-             * to accept a stale response of any age (RFC2616 14.9.3). We will
-             * set it to one year in this case as this situation is somewhat
-             * similar to a "never expires" Expires header (RFC2616 14.21)
-             * which is set to a date one year from the time the response is
-             * sent in this case.
-             */
-            maxstale = APR_INT64_C(86400*365);
-        }
-    }
-    else {
-        maxstale = 0;
-    }
-
-    /* extract min-fresh */
-    if (cc_req && ap_cache_liststr(r->pool, cc_req, "min-fresh", &val)
-        && val != NULL) {
-        minfresh = apr_atoi64(val);
-    }
-    else {
-        minfresh = 0;
-    }
-
-    /* override maxstale if must-revalidate or proxy-revalidate */
-    if (maxstale && ((cc_cresp &&
-                      ap_cache_liststr(NULL, cc_cresp,
-                                       "must-revalidate", NULL)) ||
-                     (cc_cresp &&
-                      ap_cache_liststr(NULL, cc_cresp,
-                                       "proxy-revalidate", NULL)) ||
-                     (cc_ceresp &&
-                      ap_cache_liststr(NULL, cc_ceresp,
-                                       "must-revalidate", NULL)) ||
-                     (cc_ceresp &&
-                      ap_cache_liststr(NULL, cc_ceresp,
-                                       "proxy-revalidate", NULL)))) {
-        maxstale = 0;
-    }
-
-    /* handle expiration */
-    if (((smaxage != -1) && (age < (smaxage - minfresh))) ||
-        ((maxage != -1) && (age < (maxage + maxstale - minfresh))) ||
-        ((smaxage == -1) && (maxage == -1) &&
-         (info->expire != APR_DATE_BAD) &&
-         (age < (apr_time_sec(info->expire - info->date) + maxstale - minfresh)))) {
-        const char *warn_head;
-        apr_table_t *head_ptr;
-
-        warn_head = apr_table_get(h->resp_hdrs, "Warning");
-        if (warn_head != NULL) {
-            head_ptr = h->resp_hdrs;
-        }
-        else {
-            warn_head = apr_table_get(h->resp_err_hdrs, "Warning");
-            head_ptr = h->resp_err_hdrs;
-        }
-
-        /* it's fresh darlings... */
-        /* set age header on response */
-        if (age_in_errhdr) {
-            apr_table_set(h->resp_err_hdrs, "Age",
-                          apr_psprintf(r->pool, "%lu", (unsigned long)age));
-        }
-        else {
-            apr_table_set(h->resp_hdrs, "Age",
-                          apr_psprintf(r->pool, "%lu", (unsigned long)age));
-        }
-
-        /* add warning if maxstale overrode freshness calculation */
-        if (!(((smaxage != -1) && age < smaxage) ||
-              ((maxage != -1) && age < maxage) ||
-              (info->expire != APR_DATE_BAD &&
-               (info->expire - info->date) > age))) {
-            /* make sure we don't stomp on a previous warning */
-            if ((warn_head == NULL) ||
-                ((warn_head != NULL) && (ap_strstr_c(warn_head, "110") == NULL))) {
-                apr_table_merge(head_ptr, "Warning", "110 Response is stale");
-            }
-        }
-        /* 
-         * If none of Expires, Cache-Control: max-age, or Cache-Control: 
-         * s-maxage appears in the response, and the respose header age 
-         * calculated is more than 24 hours add the warning 113 
-         */
-        if ((maxage_cresp == -1) && (smaxage == -1) &&
-            (expstr == NULL) && (age > 86400)) {
-
-            /* Make sure we don't stomp on a previous warning, and don't dup
-             * a 113 marning that is already present. Also, make sure to add
-             * the new warning to the correct *headers_out location.
-             */
-            if ((warn_head == NULL) ||
-                ((warn_head != NULL) && (ap_strstr_c(warn_head, "113") == NULL))) {
-                apr_table_merge(head_ptr, "Warning", "113 Heuristic expiration");
-            }
-        }
-        return 1;    /* Cache object is fresh (enough) */
-    }
-    return 0;        /* Cache object is stale */
-}
-
-/*
- * list is a comma-separated list of case-insensitive tokens, with
- * optional whitespace around the tokens.
- * The return returns 1 if the token val is found in the list, or 0
- * otherwise.
- */
-CACHE_DECLARE(int) ap_cache_liststr(apr_pool_t *p, const char *list,
-                                    const char *key, char **val)
-{
-    apr_size_t key_len;
-    const char *next;
-
-    if (!list) {
-        return 0;
-    }
-
-    key_len = strlen(key);
-    next = list;
-
-    for (;;) {
-
-        /* skip whitespace and commas to find the start of the next key */
-        while (*next && (apr_isspace(*next) || (*next == ','))) {
-            next++;
-        }
-
-        if (!*next) {
-            return 0;
-        }
-
-        if (!strncasecmp(next, key, key_len)) {
-            /* this field matches the key (though it might just be
-             * a prefix match, so make sure the match is followed
-             * by either a space or an equals sign)
-             */
-            next += key_len;
-            if (!*next || (*next == '=') || apr_isspace(*next) ||
-                (*next == ',')) {
-                /* valid match */
-                if (val) {
-                    while (*next && (*next != '=') && (*next != ',')) {
-                        next++;
-                    }
-                    if (*next == '=') {
-                        next++;
-                        while (*next && apr_isspace(*next )) {
-                            next++;
-                        }
-                        if (!*next) {
-                            *val = NULL;
-                        }
-                        else {
-                            const char *val_start = next;
-                            while (*next && !apr_isspace(*next) &&
-                                   (*next != ',')) {
-                                next++;
-                            }
-                            *val = apr_pstrmemdup(p, val_start,
-                                                  next - val_start);
-                        }
-                    }
-                    else {
-                        *val = NULL;
-                    }
-                }
-                return 1;
-            }
-        }
-
-        /* skip to the next field */
-        do {
-            next++;
-            if (!*next) {
-                return 0;
-            }
-        } while (*next != ',');
-    }
-}
-
-/* return each comma separated token, one at a time */
-CACHE_DECLARE(const char *)ap_cache_tokstr(apr_pool_t *p, const char *list,
-                                           const char **str)
-{
-    apr_size_t i;
-    const char *s;
-
-    s = ap_strchr_c(list, ',');
-    if (s != NULL) {
-        i = s - list;
-        do
-            s++;
-        while (apr_isspace(*s))
-            ; /* noop */
-    }
-    else
-        i = strlen(list);
-
-    while (i > 0 && apr_isspace(list[i - 1]))
-        i--;
-
-    *str = s;
-    if (i)
-        return apr_pstrndup(p, list, i);
-    else
-        return NULL;
-}
-
-/*
- * Converts apr_time_t expressed as hex digits to 
- * a true apr_time_t.
- */
-CACHE_DECLARE(apr_time_t) ap_cache_hex2usec(const char *x)
-{
-    int i, ch;
-    apr_time_t j;
-    for (i = 0, j = 0; i < sizeof(j) * 2; i++) {
-        ch = x[i];
-        j <<= 4;
-        if (apr_isdigit(ch))
-            j |= ch - '0';
-        else if (apr_isupper(ch))
-            j |= ch - ('A' - 10);
-        else
-            j |= ch - ('a' - 10);
-    }
-    return j;
-}
-
-/*
- * Converts apr_time_t to apr_time_t expressed as hex digits.
- */
-CACHE_DECLARE(void) ap_cache_usec2hex(apr_time_t j, char *y)
-{
-    int i, ch;
-
-    for (i = (sizeof(j) * 2)-1; i >= 0; i--) {
-        ch = (int)(j & 0xF);
-        j >>= 4;
-        if (ch >= 10)
-            y[i] = ch + ('A' - 10);
-        else
-            y[i] = ch + '0';
-    }
-    y[sizeof(j) * 2] = '\0';
-}
-
-static void cache_hash(const char *it, char *val, int ndepth, int nlength)
-{
-    apr_md5_ctx_t context;
-    unsigned char digest[16];
-    char tmp[22];
-    int i, k, d;
-    unsigned int x;
-    static const char enc_table[64] =
-    "ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789_@";
-
-    apr_md5_init(&context);
-    apr_md5_update(&context, (const unsigned char *) it, strlen(it));
-    apr_md5_final(digest, &context);
-
-    /* encode 128 bits as 22 characters, using a modified uuencoding 
-     * the encoding is 3 bytes -> 4 characters* i.e. 128 bits is 
-     * 5 x 3 bytes + 1 byte -> 5 * 4 characters + 2 characters
-     */
-    for (i = 0, k = 0; i < 15; i += 3) {
-        x = (digest[i] << 16) | (digest[i + 1] << 8) | digest[i + 2];
-        tmp[k++] = enc_table[x >> 18];
-        tmp[k++] = enc_table[(x >> 12) & 0x3f];
-        tmp[k++] = enc_table[(x >> 6) & 0x3f];
-        tmp[k++] = enc_table[x & 0x3f];
-    }
-
-    /* one byte left */
-    x = digest[15];
-    tmp[k++] = enc_table[x >> 2];    /* use up 6 bits */
-    tmp[k++] = enc_table[(x << 4) & 0x3f];
-
-    /* now split into directory levels */
-    for (i = k = d = 0; d < ndepth; ++d) {
-        memcpy(&val[i], &tmp[k], nlength);
-        k += nlength;
-        val[i + nlength] = '/';
-        i += nlength + 1;
-    }
-    memcpy(&val[i], &tmp[k], 22 - k);
-    val[i + 22 - k] = '\0';
-}
-
-CACHE_DECLARE(char *)generate_name(apr_pool_t *p, int dirlevels,
-                                   int dirlength, const char *name)
-{
-    char hashfile[66];
-    cache_hash(name, hashfile, dirlevels, dirlength);
-    return apr_pstrdup(p, hashfile);
-}
-
-/* Create a new table consisting of those elements from an input
- * headers table that are allowed to be stored in a cache.
- */
-CACHE_DECLARE(apr_table_t *)ap_cache_cacheable_hdrs_out(apr_pool_t *pool,
-                                                        apr_table_t *t,
-                                                        server_rec *s)
-{
-    cache_server_conf *conf;
-    char **header;
-    int i;
-
-    /* Make a copy of the headers, and remove from
-     * the copy any hop-by-hop headers, as defined in Section
-     * 13.5.1 of RFC 2616
-     */
-    apr_table_t *headers_out;
-    headers_out = apr_table_copy(pool, t);
-    apr_table_unset(headers_out, "Connection");
-    apr_table_unset(headers_out, "Keep-Alive");
-    apr_table_unset(headers_out, "Proxy-Authenticate");
-    apr_table_unset(headers_out, "Proxy-Authorization");
-    apr_table_unset(headers_out, "TE");
-    apr_table_unset(headers_out, "Trailers");
-    apr_table_unset(headers_out, "Transfer-Encoding");
-    apr_table_unset(headers_out, "Upgrade");
-
-    conf = (cache_server_conf *)ap_get_module_config(s->module_config,
-                                                     &cache_module);
-    /* Remove the user defined headers set with CacheIgnoreHeaders.
-     * This may break RFC 2616 compliance on behalf of the administrator.
-     */
-    header = (char **)conf->ignore_headers->elts;
-    for (i = 0; i < conf->ignore_headers->nelts; i++) {
-        apr_table_unset(headers_out, header[i]);
-    }
-    return headers_out;
-}