1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
|
/*
* Copyright (c) 2014 DeNA Co., Ltd.
*
* 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 <stddef.h>
#include <stdio.h>
#include "h2o.h"
static void add_header(h2o_mem_pool_t *pool, h2o_headers_t *headers, h2o_iovec_t *name, const char *orig_name, const char *value,
size_t value_len)
{
h2o_header_t *slot;
h2o_vector_reserve(pool, headers, headers->size + 1);
slot = headers->entries + headers->size++;
slot->name = name;
slot->value.base = (char *)value;
slot->value.len = value_len;
slot->orig_name = orig_name ? h2o_strdup(pool, orig_name, name->len).base : NULL;
}
ssize_t h2o_find_header(const h2o_headers_t *headers, const h2o_token_t *token, ssize_t cursor)
{
for (++cursor; cursor < headers->size; ++cursor) {
if (headers->entries[cursor].name == &token->buf) {
return cursor;
}
}
return -1;
}
ssize_t h2o_find_header_by_str(const h2o_headers_t *headers, const char *name, size_t name_len, ssize_t cursor)
{
for (++cursor; cursor < headers->size; ++cursor) {
h2o_header_t *t = headers->entries + cursor;
if (h2o_memis(t->name->base, t->name->len, name, name_len)) {
return cursor;
}
}
return -1;
}
void h2o_add_header(h2o_mem_pool_t *pool, h2o_headers_t *headers, const h2o_token_t *token, const char *orig_name,
const char *value, size_t value_len)
{
add_header(pool, headers, (h2o_iovec_t *)&token->buf, orig_name, value, value_len);
}
void h2o_add_header_by_str(h2o_mem_pool_t *pool, h2o_headers_t *headers, const char *name, size_t name_len, int maybe_token,
const char *orig_name, const char *value, size_t value_len)
{
h2o_iovec_t *name_buf;
if (maybe_token) {
const h2o_token_t *token = h2o_lookup_token(name, name_len);
if (token != NULL) {
add_header(pool, headers, (h2o_iovec_t *)token, orig_name, value, value_len);
return;
}
}
name_buf = h2o_mem_alloc_pool(pool, sizeof(h2o_iovec_t));
name_buf->base = (char *)name;
name_buf->len = name_len;
add_header(pool, headers, name_buf, orig_name, value, value_len);
}
void h2o_set_header(h2o_mem_pool_t *pool, h2o_headers_t *headers, const h2o_token_t *token, const char *value, size_t value_len,
int overwrite_if_exists)
{
ssize_t cursor = h2o_find_header(headers, token, -1);
if (cursor != -1) {
if (overwrite_if_exists) {
h2o_iovec_t *slot = &headers->entries[cursor].value;
slot->base = (char *)value;
slot->len = value_len;
}
} else {
h2o_add_header(pool, headers, token, NULL, value, value_len);
}
}
void h2o_set_header_by_str(h2o_mem_pool_t *pool, h2o_headers_t *headers, const char *name, size_t name_len, int maybe_token,
const char *value, size_t value_len, int overwrite_if_exists)
{
ssize_t cursor;
if (maybe_token) {
const h2o_token_t *token = h2o_lookup_token(name, name_len);
if (token != NULL) {
h2o_set_header(pool, headers, token, value, value_len, overwrite_if_exists);
return;
}
}
cursor = h2o_find_header_by_str(headers, name, name_len, -1);
if (cursor != -1) {
if (overwrite_if_exists) {
h2o_iovec_t *slot = &headers->entries[cursor].value;
slot->base = (char *)value;
slot->len = value_len;
}
} else {
h2o_iovec_t *name_buf = h2o_mem_alloc_pool(pool, sizeof(h2o_iovec_t));
name_buf->base = (char *)name;
name_buf->len = name_len;
add_header(pool, headers, name_buf, NULL, value, value_len);
}
}
void h2o_set_header_token(h2o_mem_pool_t *pool, h2o_headers_t *headers, const h2o_token_t *token, const char *value,
size_t value_len)
{
h2o_header_t *dest = NULL;
size_t i;
for (i = 0; i != headers->size; ++i) {
if (headers->entries[i].name == &token->buf) {
if (h2o_contains_token(headers->entries[i].value.base, headers->entries[i].value.len, value, value_len, ','))
return;
dest = headers->entries + i;
}
}
if (dest != NULL) {
dest->value = h2o_concat(pool, dest->value, h2o_iovec_init(H2O_STRLIT(", ")), h2o_iovec_init(value, value_len));
} else {
h2o_add_header(pool, headers, token, NULL, value, value_len);
}
}
ssize_t h2o_delete_header(h2o_headers_t *headers, ssize_t cursor)
{
assert(cursor != -1);
--headers->size;
memmove(headers->entries + cursor, headers->entries + cursor + 1, sizeof(h2o_header_t) * (headers->size - cursor));
return cursor;
}
|
