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-rw-r--r--debian/vendor-h2o/lib/http2/casper.c205
1 files changed, 0 insertions, 205 deletions
diff --git a/debian/vendor-h2o/lib/http2/casper.c b/debian/vendor-h2o/lib/http2/casper.c
deleted file mode 100644
index 56e00d7..0000000
--- a/debian/vendor-h2o/lib/http2/casper.c
+++ /dev/null
@@ -1,205 +0,0 @@
-/*
- * Copyright (c) 2015 DeNA Co., Ltd., Kazuho Oku
- *
- * 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.
- */
-#include <openssl/sha.h>
-#include "golombset.h"
-#include "h2o/string_.h"
-#include "h2o/http2_casper.h"
-
-#define COOKIE_NAME "h2o_casper"
-#define COOKIE_ATTRIBUTES "; Path=/; Expires=Tue, 01 Jan 2030 00:00:00 GMT; Secure"
-
-struct st_h2o_http2_casper_t {
- H2O_VECTOR(uint64_t) keys;
- unsigned capacity_bits;
- unsigned remainder_bits;
- h2o_iovec_t cookie_cache;
-};
-
-static unsigned calc_key(h2o_http2_casper_t *casper, const char *path, size_t path_len)
-{
- SHA_CTX ctx;
- SHA1_Init(&ctx);
- SHA1_Update(&ctx, path, path_len);
-
- union {
- unsigned key;
- unsigned char bytes[SHA_DIGEST_LENGTH];
- } md;
- SHA1_Final(md.bytes, &ctx);
-
- return md.key & ((1 << casper->capacity_bits) - 1);
-}
-
-h2o_http2_casper_t *h2o_http2_casper_create(unsigned capacity_bits, unsigned remainder_bits)
-{
- h2o_http2_casper_t *casper = h2o_mem_alloc(sizeof(*casper));
-
- memset(&casper->keys, 0, sizeof(casper->keys));
- casper->capacity_bits = capacity_bits;
- casper->remainder_bits = remainder_bits;
- casper->cookie_cache = (h2o_iovec_t){NULL};
-
- return casper;
-}
-
-void h2o_http2_casper_destroy(h2o_http2_casper_t *casper)
-{
- free(casper->keys.entries);
- free(casper->cookie_cache.base);
- free(casper);
-}
-
-size_t h2o_http2_casper_num_entries(h2o_http2_casper_t *casper)
-{
- return casper->keys.size;
-}
-
-int h2o_http2_casper_lookup(h2o_http2_casper_t *casper, const char *path, size_t path_len, int set)
-{
- unsigned key = calc_key(casper, path, path_len);
- size_t i;
-
- /* FIXME use binary search */
- for (i = 0; i != casper->keys.size; ++i)
- if (key <= casper->keys.entries[i])
- break;
- if (i != casper->keys.size && key == casper->keys.entries[i])
- return 1;
- if (!set)
- return 0;
-
- /* we need to set a new value */
- free(casper->cookie_cache.base);
- casper->cookie_cache = (h2o_iovec_t){NULL};
- h2o_vector_reserve(NULL, &casper->keys, casper->keys.size + 1);
- memmove(casper->keys.entries + i + 1, casper->keys.entries + i, (casper->keys.size - i) * sizeof(casper->keys.entries[0]));
- ++casper->keys.size;
- casper->keys.entries[i] = key;
- return 0;
-}
-
-void h2o_http2_casper_consume_cookie(h2o_http2_casper_t *casper, const char *cookie, size_t cookie_len)
-{
- h2o_iovec_t binary = {NULL};
- uint64_t tiny_keys_buf[128], *keys = tiny_keys_buf;
-
- /* check the name of the cookie */
- if (!(cookie_len > sizeof(COOKIE_NAME "=") - 1 && memcmp(cookie, H2O_STRLIT(COOKIE_NAME "=")) == 0))
- goto Exit;
-
- /* base64 decode */
- if ((binary = h2o_decode_base64url(NULL, cookie + sizeof(COOKIE_NAME "=") - 1, cookie_len - (sizeof(COOKIE_NAME "=") - 1)))
- .base == NULL)
- goto Exit;
-
- /* decode GCS, either using tiny_keys_buf or using heap */
- size_t capacity = sizeof(tiny_keys_buf) / sizeof(tiny_keys_buf[0]), num_keys;
- while (num_keys = capacity, golombset_decode(casper->remainder_bits, binary.base, binary.len, keys, &num_keys) != 0) {
- if (keys != tiny_keys_buf) {
- free(keys);
- keys = tiny_keys_buf; /* reset to something that would not trigger call to free(3) */
- }
- if (capacity >= (size_t)1 << casper->capacity_bits)
- goto Exit;
- capacity *= 2;
- keys = h2o_mem_alloc(capacity * sizeof(*keys));
- }
-
- /* copy or merge the entries */
- if (num_keys == 0) {
- /* nothing to do */
- } else if (casper->keys.size == 0) {
- h2o_vector_reserve(NULL, &casper->keys, num_keys);
- memcpy(casper->keys.entries, keys, num_keys * sizeof(*keys));
- casper->keys.size = num_keys;
- } else {
- uint64_t *orig_keys = casper->keys.entries;
- size_t num_orig_keys = casper->keys.size, orig_index = 0, new_index = 0;
- memset(&casper->keys, 0, sizeof(casper->keys));
- h2o_vector_reserve(NULL, &casper->keys, num_keys + num_orig_keys);
- do {
- if (orig_keys[orig_index] < keys[new_index]) {
- casper->keys.entries[casper->keys.size++] = orig_keys[orig_index++];
- } else if (orig_keys[orig_index] > keys[new_index]) {
- casper->keys.entries[casper->keys.size++] = keys[new_index++];
- } else {
- casper->keys.entries[casper->keys.size++] = orig_keys[orig_index];
- ++orig_index;
- ++new_index;
- }
- } while (orig_index != num_orig_keys && new_index != num_keys);
- if (orig_index != num_orig_keys) {
- do {
- casper->keys.entries[casper->keys.size++] = orig_keys[orig_index++];
- } while (orig_index != num_orig_keys);
- } else if (new_index != num_keys) {
- do {
- casper->keys.entries[casper->keys.size++] = keys[new_index++];
- } while (new_index != num_keys);
- }
- free(orig_keys);
- }
-
-Exit:
- if (keys != tiny_keys_buf)
- free(keys);
- free(binary.base);
-}
-
-static size_t append_str(char *dst, const char *s, size_t l)
-{
- memcpy(dst, s, l);
- return l;
-}
-
-h2o_iovec_t h2o_http2_casper_get_cookie(h2o_http2_casper_t *casper)
-{
- if (casper->cookie_cache.base != NULL)
- return casper->cookie_cache;
-
- if (casper->keys.size == 0)
- return (h2o_iovec_t){NULL};
-
- /* encode as binary */
- char tiny_bin_buf[128], *bin_buf = tiny_bin_buf;
- size_t bin_capacity = sizeof(tiny_bin_buf), bin_size;
- while (bin_size = bin_capacity,
- golombset_encode(casper->remainder_bits, casper->keys.entries, casper->keys.size, bin_buf, &bin_size) != 0) {
- if (bin_buf != tiny_bin_buf)
- free(bin_buf);
- bin_capacity *= 2;
- bin_buf = h2o_mem_alloc(bin_capacity);
- }
-
- char *header_bytes = h2o_mem_alloc(sizeof(COOKIE_NAME "=" COOKIE_ATTRIBUTES) - 1 + (bin_size + 3) * 4 / 3);
- size_t header_len = 0;
-
- header_len += append_str(header_bytes + header_len, H2O_STRLIT(COOKIE_NAME "="));
- header_len += h2o_base64_encode(header_bytes + header_len, bin_buf, bin_size, 1);
- header_len += append_str(header_bytes + header_len, H2O_STRLIT(COOKIE_ATTRIBUTES));
-
- if (bin_buf != tiny_bin_buf)
- free(bin_buf);
-
- casper->cookie_cache = h2o_iovec_init(header_bytes, header_len);
- return casper->cookie_cache;
-}
generated by cgit v1.2.3 (git 2.39.1) at 2024-07-24 22:09:07 +0000