HTTP: generalized argument and cookie parsing.
No functional changes.
This commit is contained in:
Zhidao HONG
@@ -198,6 +198,15 @@ struct nxt_http_request_s {
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};
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typedef struct {
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uint16_t hash;
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uint16_t name_length;
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uint32_t value_length;
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u_char *name;
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u_char *value;
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} nxt_http_name_value_t;
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typedef struct nxt_http_route_s nxt_http_route_t;
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typedef struct nxt_http_route_rule_s nxt_http_route_rule_t;
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typedef struct nxt_http_route_addr_rule_s nxt_http_route_addr_rule_t;
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@@ -311,6 +320,9 @@ nxt_int_t nxt_http_request_field(void *ctx, nxt_http_field_t *field,
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nxt_int_t nxt_http_request_content_length(void *ctx, nxt_http_field_t *field,
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uintptr_t data);
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nxt_array_t *nxt_http_arguments_parse(nxt_http_request_t *r);
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nxt_array_t *nxt_http_cookies_parse(nxt_http_request_t *r);
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nxt_http_routes_t *nxt_http_routes_create(nxt_task_t *task,
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nxt_router_temp_conf_t *tmcf, nxt_conf_value_t *routes_conf);
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nxt_http_action_t *nxt_http_action_create(nxt_task_t *task,
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@@ -24,6 +24,25 @@ static void nxt_http_request_done(nxt_task_t *task, void *obj, void *data);
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static u_char *nxt_http_date_cache_handler(u_char *buf, nxt_realtime_t *now,
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struct tm *tm, size_t size, const char *format);
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static nxt_http_name_value_t *nxt_http_argument(nxt_array_t *array,
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u_char *name, size_t name_length, uint32_t hash, u_char *start,
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u_char *end);
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static nxt_int_t nxt_http_cookie_parse(nxt_array_t *cookies, u_char *start,
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u_char *end);
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static nxt_http_name_value_t *nxt_http_cookie(nxt_array_t *array, u_char *name,
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size_t name_length, u_char *start, u_char *end);
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#define NXT_HTTP_COOKIE_HASH \
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(nxt_http_field_hash_end( \
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nxt_http_field_hash_char( \
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nxt_http_field_hash_char( \
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nxt_http_field_hash_char( \
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nxt_http_field_hash_char( \
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nxt_http_field_hash_char( \
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nxt_http_field_hash_char(NXT_HTTP_FIELD_HASH_INIT, \
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'c'), 'o'), 'o'), 'k'), 'i'), 'e')) & 0xFFFF)
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static const nxt_http_request_state_t nxt_http_request_init_state;
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static const nxt_http_request_state_t nxt_http_request_body_state;
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@@ -748,3 +767,260 @@ nxt_http_date_cache_handler(u_char *buf, nxt_realtime_t *now, struct tm *tm,
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{
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return nxt_http_date(buf, tm);
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}
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nxt_array_t *
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nxt_http_arguments_parse(nxt_http_request_t *r)
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{
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size_t name_length;
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u_char *p, *dst, *dst_start, *start, *end, *name;
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uint8_t d0, d1;
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uint32_t hash;
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nxt_array_t *args;
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nxt_http_name_value_t *nv;
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if (r->arguments != NULL) {
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return r->arguments;
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}
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args = nxt_array_create(r->mem_pool, 2, sizeof(nxt_http_name_value_t));
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if (nxt_slow_path(args == NULL)) {
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return NULL;
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}
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hash = NXT_HTTP_FIELD_HASH_INIT;
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name = NULL;
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name_length = 0;
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dst_start = nxt_mp_nget(r->mem_pool, r->args->length);
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if (nxt_slow_path(dst_start == NULL)) {
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return NULL;
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}
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r->args_decoded.start = dst_start;
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start = r->args->start;
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end = start + r->args->length;
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for (p = start, dst = dst_start; p < end; p++, dst++) {
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*dst = *p;
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switch (*p) {
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case '=':
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if (name == NULL) {
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name_length = dst - dst_start;
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name = dst_start;
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dst_start = dst + 1;
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}
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continue;
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case '&':
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if (name_length != 0 || dst != dst_start) {
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nv = nxt_http_argument(args, name, name_length, hash, dst_start,
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dst);
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if (nxt_slow_path(nv == NULL)) {
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return NULL;
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}
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}
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hash = NXT_HTTP_FIELD_HASH_INIT;
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name_length = 0;
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name = NULL;
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dst_start = dst + 1;
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continue;
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case '+':
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*dst = ' ';
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break;
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case '%':
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if (nxt_slow_path(end - p <= 2)) {
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break;
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}
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d0 = nxt_hex2int[p[1]];
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d1 = nxt_hex2int[p[2]];
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if (nxt_slow_path((d0 | d1) >= 16)) {
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break;
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}
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p += 2;
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*dst = (d0 << 4) + d1;
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break;
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}
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if (name == NULL) {
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hash = nxt_http_field_hash_char(hash, *dst);
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}
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}
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r->args_decoded.length = dst - r->args_decoded.start;
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if (name_length != 0 || dst != dst_start) {
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nv = nxt_http_argument(args, name, name_length, hash, dst_start, dst);
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if (nxt_slow_path(nv == NULL)) {
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return NULL;
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}
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}
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r->arguments = args;
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return args;
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}
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static nxt_http_name_value_t *
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nxt_http_argument(nxt_array_t *array, u_char *name, size_t name_length,
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uint32_t hash, u_char *start, u_char *end)
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{
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size_t length;
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nxt_http_name_value_t *nv;
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nv = nxt_array_add(array);
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if (nxt_slow_path(nv == NULL)) {
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return NULL;
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}
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nv->hash = nxt_http_field_hash_end(hash) & 0xFFFF;
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length = end - start;
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if (name == NULL) {
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name_length = length;
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name = start;
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length = 0;
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}
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nv->name_length = name_length;
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nv->value_length = length;
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nv->name = name;
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nv->value = start;
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return nv;
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}
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nxt_array_t *
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nxt_http_cookies_parse(nxt_http_request_t *r)
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{
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nxt_int_t ret;
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nxt_array_t *cookies;
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nxt_http_field_t *f;
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if (r->cookies != NULL) {
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return r->cookies;
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}
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cookies = nxt_array_create(r->mem_pool, 2, sizeof(nxt_http_name_value_t));
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if (nxt_slow_path(cookies == NULL)) {
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return NULL;
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}
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nxt_list_each(f, r->fields) {
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if (f->hash != NXT_HTTP_COOKIE_HASH
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|| f->name_length != 6
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|| nxt_strncasecmp(f->name, (u_char *) "Cookie", 6) != 0)
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{
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continue;
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}
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ret = nxt_http_cookie_parse(cookies, f->value,
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f->value + f->value_length);
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if (ret != NXT_OK) {
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return NULL;
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}
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} nxt_list_loop;
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r->cookies = cookies;
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return cookies;
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}
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static nxt_int_t
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nxt_http_cookie_parse(nxt_array_t *cookies, u_char *start, u_char *end)
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{
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size_t name_length;
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u_char c, *p, *name;
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nxt_http_name_value_t *nv;
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name = NULL;
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name_length = 0;
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for (p = start; p < end; p++) {
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c = *p;
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if (c == '=') {
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while (start[0] == ' ') { start++; }
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name_length = p - start;
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if (name_length != 0) {
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name = start;
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}
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start = p + 1;
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} else if (c == ';') {
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if (name != NULL) {
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nv = nxt_http_cookie(cookies, name, name_length, start, p);
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if (nxt_slow_path(nv == NULL)) {
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return NXT_ERROR;
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}
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}
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name = NULL;
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start = p + 1;
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}
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}
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if (name != NULL) {
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nv = nxt_http_cookie(cookies, name, name_length, start, p);
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if (nxt_slow_path(nv == NULL)) {
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return NXT_ERROR;
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}
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}
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return NXT_OK;
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}
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static nxt_http_name_value_t *
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nxt_http_cookie(nxt_array_t *array, u_char *name, size_t name_length,
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u_char *start, u_char *end)
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{
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u_char c, *p;
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uint32_t hash;
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nxt_http_name_value_t *nv;
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nv = nxt_array_add(array);
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if (nxt_slow_path(nv == NULL)) {
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return NULL;
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}
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nv->name_length = name_length;
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nv->name = name;
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hash = NXT_HTTP_FIELD_HASH_INIT;
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for (p = name; p < name + name_length; p++) {
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c = *p;
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hash = nxt_http_field_hash_char(hash, c);
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}
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nv->hash = nxt_http_field_hash_end(hash) & 0xFFFF;
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while (start < end && end[-1] == ' ') { end--; }
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nv->value_length = end - start;
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nv->value = start;
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return nv;
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}
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@@ -86,15 +86,6 @@ typedef struct {
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} nxt_http_route_pattern_t;
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typedef struct {
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uint16_t hash;
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uint16_t name_length;
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uint32_t value_length;
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u_char *name;
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u_char *value;
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} nxt_http_name_value_t;
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typedef struct {
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uint16_t hash;
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uint16_t name_length;
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@@ -172,17 +163,6 @@ struct nxt_http_routes_s {
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};
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#define NXT_COOKIE_HASH \
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(nxt_http_field_hash_end( \
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nxt_http_field_hash_char( \
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nxt_http_field_hash_char( \
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nxt_http_field_hash_char( \
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nxt_http_field_hash_char( \
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nxt_http_field_hash_char( \
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nxt_http_field_hash_char(NXT_HTTP_FIELD_HASH_INIT, \
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'c'), 'o'), 'o'), 'k'), 'i'), 'e')) & 0xFFFF)
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static nxt_http_route_t *nxt_http_route_create(nxt_task_t *task,
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nxt_router_temp_conf_t *tmcf, nxt_conf_value_t *cv);
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static nxt_http_route_match_t *nxt_http_route_match_create(nxt_task_t *task,
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@@ -241,10 +221,6 @@ static nxt_int_t nxt_http_route_header(nxt_http_request_t *r,
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nxt_http_route_rule_t *rule);
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static nxt_int_t nxt_http_route_arguments(nxt_http_request_t *r,
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nxt_http_route_rule_t *rule);
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static nxt_array_t *nxt_http_route_arguments_parse(nxt_http_request_t *r);
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static nxt_http_name_value_t *nxt_http_route_argument(nxt_array_t *array,
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u_char *name, size_t name_length, uint32_t hash, u_char *start,
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u_char *end);
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static nxt_int_t nxt_http_route_test_argument(nxt_http_request_t *r,
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nxt_http_route_rule_t *rule, nxt_array_t *array);
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static nxt_int_t nxt_http_route_scheme(nxt_http_request_t *r,
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@@ -253,11 +229,6 @@ static nxt_int_t nxt_http_route_query(nxt_http_request_t *r,
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nxt_http_route_rule_t *rule);
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static nxt_int_t nxt_http_route_cookies(nxt_http_request_t *r,
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nxt_http_route_rule_t *rule);
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static nxt_array_t *nxt_http_route_cookies_parse(nxt_http_request_t *r);
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static nxt_int_t nxt_http_route_cookie_parse(nxt_array_t *cookies,
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u_char *start, u_char *end);
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static nxt_http_name_value_t *nxt_http_route_cookie(nxt_array_t *array,
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u_char *name, size_t name_length, u_char *start, u_char *end);
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static nxt_int_t nxt_http_route_test_cookie(nxt_http_request_t *r,
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nxt_http_route_rule_t *rule, nxt_array_t *array);
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static nxt_int_t nxt_http_route_pattern(nxt_http_request_t *r,
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@@ -1995,7 +1966,7 @@ nxt_http_route_arguments(nxt_http_request_t *r, nxt_http_route_rule_t *rule)
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{
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nxt_array_t *arguments;
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arguments = nxt_http_route_arguments_parse(r);
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arguments = nxt_http_arguments_parse(r);
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if (nxt_slow_path(arguments == NULL)) {
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return -1;
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}
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@@ -2004,143 +1975,6 @@ nxt_http_route_arguments(nxt_http_request_t *r, nxt_http_route_rule_t *rule)
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}
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static nxt_array_t *
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nxt_http_route_arguments_parse(nxt_http_request_t *r)
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{
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size_t name_length;
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u_char *p, *dst, *dst_start, *start, *end, *name;
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uint8_t d0, d1;
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uint32_t hash;
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nxt_array_t *args;
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nxt_http_name_value_t *nv;
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if (r->arguments != NULL) {
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return r->arguments;
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}
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args = nxt_array_create(r->mem_pool, 2, sizeof(nxt_http_name_value_t));
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if (nxt_slow_path(args == NULL)) {
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return NULL;
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}
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hash = NXT_HTTP_FIELD_HASH_INIT;
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name = NULL;
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name_length = 0;
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dst_start = nxt_mp_nget(r->mem_pool, r->args->length);
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if (nxt_slow_path(dst_start == NULL)) {
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return NULL;
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}
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r->args_decoded.start = dst_start;
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start = r->args->start;
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end = start + r->args->length;
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for (p = start, dst = dst_start; p < end; p++, dst++) {
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*dst = *p;
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switch (*p) {
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case '=':
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if (name == NULL) {
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name_length = dst - dst_start;
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name = dst_start;
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dst_start = dst + 1;
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}
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continue;
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case '&':
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if (name_length != 0 || dst != dst_start) {
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nv = nxt_http_route_argument(args, name, name_length, hash,
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dst_start, dst);
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if (nxt_slow_path(nv == NULL)) {
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return NULL;
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}
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}
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hash = NXT_HTTP_FIELD_HASH_INIT;
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name_length = 0;
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name = NULL;
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dst_start = dst + 1;
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continue;
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case '+':
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*dst = ' ';
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break;
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case '%':
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if (nxt_slow_path(end - p <= 2)) {
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break;
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}
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d0 = nxt_hex2int[p[1]];
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d1 = nxt_hex2int[p[2]];
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if (nxt_slow_path((d0 | d1) >= 16)) {
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break;
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}
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p += 2;
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*dst = (d0 << 4) + d1;
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break;
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}
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if (name == NULL) {
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hash = nxt_http_field_hash_char(hash, *dst);
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}
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}
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r->args_decoded.length = dst - r->args_decoded.start;
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||||
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||||
if (name_length != 0 || dst != dst_start) {
|
||||
nv = nxt_http_route_argument(args, name, name_length, hash, dst_start,
|
||||
dst);
|
||||
if (nxt_slow_path(nv == NULL)) {
|
||||
return NULL;
|
||||
}
|
||||
}
|
||||
|
||||
r->arguments = args;
|
||||
|
||||
return args;
|
||||
}
|
||||
|
||||
|
||||
static nxt_http_name_value_t *
|
||||
nxt_http_route_argument(nxt_array_t *array, u_char *name, size_t name_length,
|
||||
uint32_t hash, u_char *start, u_char *end)
|
||||
{
|
||||
size_t length;
|
||||
nxt_http_name_value_t *nv;
|
||||
|
||||
nv = nxt_array_add(array);
|
||||
if (nxt_slow_path(nv == NULL)) {
|
||||
return NULL;
|
||||
}
|
||||
|
||||
nv->hash = nxt_http_field_hash_end(hash) & 0xFFFF;
|
||||
|
||||
length = end - start;
|
||||
|
||||
if (name == NULL) {
|
||||
name_length = length;
|
||||
name = start;
|
||||
length = 0;
|
||||
}
|
||||
|
||||
nv->name_length = name_length;
|
||||
nv->value_length = length;
|
||||
nv->name = name;
|
||||
nv->value = start;
|
||||
|
||||
return nv;
|
||||
}
|
||||
|
||||
|
||||
static nxt_int_t
|
||||
nxt_http_route_test_argument(nxt_http_request_t *r,
|
||||
nxt_http_route_rule_t *rule, nxt_array_t *array)
|
||||
@@ -2196,7 +2030,7 @@ nxt_http_route_query(nxt_http_request_t *r, nxt_http_route_rule_t *rule)
|
||||
{
|
||||
nxt_array_t *arguments;
|
||||
|
||||
arguments = nxt_http_route_arguments_parse(r);
|
||||
arguments = nxt_http_arguments_parse(r);
|
||||
if (nxt_slow_path(arguments == NULL)) {
|
||||
return -1;
|
||||
}
|
||||
@@ -2211,7 +2045,7 @@ nxt_http_route_cookies(nxt_http_request_t *r, nxt_http_route_rule_t *rule)
|
||||
{
|
||||
nxt_array_t *cookies;
|
||||
|
||||
cookies = nxt_http_route_cookies_parse(r);
|
||||
cookies = nxt_http_cookies_parse(r);
|
||||
if (nxt_slow_path(cookies == NULL)) {
|
||||
return -1;
|
||||
}
|
||||
@@ -2220,128 +2054,6 @@ nxt_http_route_cookies(nxt_http_request_t *r, nxt_http_route_rule_t *rule)
|
||||
}
|
||||
|
||||
|
||||
static nxt_array_t *
|
||||
nxt_http_route_cookies_parse(nxt_http_request_t *r)
|
||||
{
|
||||
nxt_int_t ret;
|
||||
nxt_array_t *cookies;
|
||||
nxt_http_field_t *f;
|
||||
|
||||
if (r->cookies != NULL) {
|
||||
return r->cookies;
|
||||
}
|
||||
|
||||
cookies = nxt_array_create(r->mem_pool, 2, sizeof(nxt_http_name_value_t));
|
||||
if (nxt_slow_path(cookies == NULL)) {
|
||||
return NULL;
|
||||
}
|
||||
|
||||
nxt_list_each(f, r->fields) {
|
||||
|
||||
if (f->hash != NXT_COOKIE_HASH
|
||||
|| f->name_length != 6
|
||||
|| nxt_strncasecmp(f->name, (u_char *) "Cookie", 6) != 0)
|
||||
{
|
||||
continue;
|
||||
}
|
||||
|
||||
ret = nxt_http_route_cookie_parse(cookies, f->value,
|
||||
f->value + f->value_length);
|
||||
if (ret != NXT_OK) {
|
||||
return NULL;
|
||||
}
|
||||
|
||||
} nxt_list_loop;
|
||||
|
||||
r->cookies = cookies;
|
||||
|
||||
return cookies;
|
||||
}
|
||||
|
||||
|
||||
static nxt_int_t
|
||||
nxt_http_route_cookie_parse(nxt_array_t *cookies, u_char *start, u_char *end)
|
||||
{
|
||||
size_t name_length;
|
||||
u_char c, *p, *name;
|
||||
nxt_http_name_value_t *nv;
|
||||
|
||||
name = NULL;
|
||||
name_length = 0;
|
||||
|
||||
for (p = start; p < end; p++) {
|
||||
c = *p;
|
||||
|
||||
if (c == '=') {
|
||||
while (start[0] == ' ') { start++; }
|
||||
|
||||
name_length = p - start;
|
||||
|
||||
if (name_length != 0) {
|
||||
name = start;
|
||||
}
|
||||
|
||||
start = p + 1;
|
||||
|
||||
} else if (c == ';') {
|
||||
if (name != NULL) {
|
||||
nv = nxt_http_route_cookie(cookies, name, name_length,
|
||||
start, p);
|
||||
if (nxt_slow_path(nv == NULL)) {
|
||||
return NXT_ERROR;
|
||||
}
|
||||
}
|
||||
|
||||
name = NULL;
|
||||
start = p + 1;
|
||||
}
|
||||
}
|
||||
|
||||
if (name != NULL) {
|
||||
nv = nxt_http_route_cookie(cookies, name, name_length, start, p);
|
||||
if (nxt_slow_path(nv == NULL)) {
|
||||
return NXT_ERROR;
|
||||
}
|
||||
}
|
||||
|
||||
return NXT_OK;
|
||||
}
|
||||
|
||||
|
||||
static nxt_http_name_value_t *
|
||||
nxt_http_route_cookie(nxt_array_t *array, u_char *name, size_t name_length,
|
||||
u_char *start, u_char *end)
|
||||
{
|
||||
u_char c, *p;
|
||||
uint32_t hash;
|
||||
nxt_http_name_value_t *nv;
|
||||
|
||||
nv = nxt_array_add(array);
|
||||
if (nxt_slow_path(nv == NULL)) {
|
||||
return NULL;
|
||||
}
|
||||
|
||||
nv->name_length = name_length;
|
||||
nv->name = name;
|
||||
|
||||
hash = NXT_HTTP_FIELD_HASH_INIT;
|
||||
|
||||
for (p = name; p < name + name_length; p++) {
|
||||
c = *p;
|
||||
hash = nxt_http_field_hash_char(hash, c);
|
||||
}
|
||||
|
||||
nv->hash = nxt_http_field_hash_end(hash) & 0xFFFF;
|
||||
|
||||
while (start < end && end[-1] == ' ') { end--; }
|
||||
|
||||
nv->value_length = end - start;
|
||||
nv->value = start;
|
||||
|
||||
return nv;
|
||||
}
|
||||
|
||||
|
||||
static nxt_int_t
|
||||
nxt_http_route_test_cookie(nxt_http_request_t *r,
|
||||
nxt_http_route_rule_t *rule, nxt_array_t *array)
|
||||
|
||||
Reference in New Issue
Block a user