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
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
|
/*
* 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 "h2o.h"
#include "h2o/configurator.h"
#define DEFAULT_GZIP_QUALITY 1
#define DEFAULT_BROTLI_QUALITY 1
struct compress_configurator_t {
h2o_configurator_t super;
h2o_compress_args_t *vars, _vars_stack[H2O_CONFIGURATOR_NUM_LEVELS + 1];
};
static const h2o_compress_args_t all_off = {0, {-1}, {-1}}, all_on = {100, {DEFAULT_GZIP_QUALITY}, {DEFAULT_BROTLI_QUALITY}};
static int on_config_gzip(h2o_configurator_command_t *cmd, h2o_configurator_context_t *ctx, yoml_t *node)
{
struct compress_configurator_t *self = (void *)cmd->configurator;
int mode;
if ((mode = (int)h2o_configurator_get_one_of(cmd, node, "OFF,ON")) == -1)
return -1;
*self->vars = all_off;
if (mode != 0)
self->vars->gzip.quality = DEFAULT_GZIP_QUALITY;
return 0;
}
static int obtain_quality(yoml_t *node, int min_quality, int max_quality, int default_quality, int *slot)
{
int tmp;
if (node->type != YOML_TYPE_SCALAR)
return -1;
if (strcasecmp(node->data.scalar, "OFF") == 0) {
*slot = -1;
return 0;
}
if (strcasecmp(node->data.scalar, "ON") == 0) {
*slot = default_quality;
return 0;
}
if (sscanf(node->data.scalar, "%d", &tmp) == 1 && (min_quality <= tmp && tmp <= max_quality)) {
*slot = tmp;
return 0;
}
return -1;
}
static int on_config_compress_min_size(h2o_configurator_command_t *cmd, h2o_configurator_context_t *ctx, yoml_t *node)
{
struct compress_configurator_t *self = (void *)cmd->configurator;
return h2o_configurator_scanf(cmd, node, "%zu", &self->vars->min_size);
}
static int on_config_compress(h2o_configurator_command_t *cmd, h2o_configurator_context_t *ctx, yoml_t *node)
{
struct compress_configurator_t *self = (void *)cmd->configurator;
size_t i;
switch (node->type) {
case YOML_TYPE_SCALAR:
if (strcasecmp(node->data.scalar, "OFF") == 0) {
*self->vars = all_off;
} else if (strcasecmp(node->data.scalar, "ON") == 0) {
*self->vars = all_on;
} else {
h2o_configurator_errprintf(cmd, node, "scalar argument must be either of: `OFF`, `ON`");
return -1;
}
break;
case YOML_TYPE_SEQUENCE:
*self->vars = all_off;
for (i = 0; i != node->data.sequence.size; ++i) {
yoml_t *element = node->data.sequence.elements[i];
if (element->type == YOML_TYPE_SCALAR && strcasecmp(element->data.scalar, "gzip") == 0) {
self->vars->gzip.quality = DEFAULT_GZIP_QUALITY;
} else if (element->type == YOML_TYPE_SCALAR && strcasecmp(element->data.scalar, "br") == 0) {
self->vars->brotli.quality = DEFAULT_BROTLI_QUALITY;
} else {
h2o_configurator_errprintf(cmd, element, "element of the sequence must be either of: `gzip`, `br`");
return -1;
}
}
break;
case YOML_TYPE_MAPPING:
*self->vars = all_off;
for (i = 0; i != node->data.mapping.size; ++i) {
yoml_t *key = node->data.mapping.elements[i].key;
yoml_t *value = node->data.mapping.elements[i].value;
if (key->type == YOML_TYPE_SCALAR && strcasecmp(key->data.scalar, "gzip") == 0) {
if (obtain_quality(value, 1, 9, DEFAULT_GZIP_QUALITY, &self->vars->gzip.quality) != 0) {
h2o_configurator_errprintf(
cmd, value, "value of gzip attribute must be either of `OFF`, `ON` or an integer value between 1 and 9");
return -1;
}
} else if (key->type == YOML_TYPE_SCALAR && strcasecmp(key->data.scalar, "br") == 0) {
if (obtain_quality(value, 0, 11, DEFAULT_BROTLI_QUALITY, &self->vars->brotli.quality) != 0) {
h2o_configurator_errprintf(
cmd, value, "value of br attribute must be either of `OFF`, `ON` or an integer between 0 and 11");
return -1;
}
} else {
h2o_configurator_errprintf(cmd, key, "key must be either of: `gzip`, `br`");
return -1;
}
}
break;
default:
h2o_fatal("unexpected node type");
break;
}
return 0;
}
static int on_config_enter(h2o_configurator_t *configurator, h2o_configurator_context_t *ctx, yoml_t *node)
{
struct compress_configurator_t *self = (void *)configurator;
++self->vars;
self->vars[0] = self->vars[-1];
return 0;
}
static int on_config_exit(h2o_configurator_t *configurator, h2o_configurator_context_t *ctx, yoml_t *node)
{
struct compress_configurator_t *self = (void *)configurator;
if (ctx->pathconf != NULL && (self->vars->gzip.quality != -1 || self->vars->brotli.quality != -1))
h2o_compress_register(ctx->pathconf, self->vars);
--self->vars;
return 0;
}
void h2o_compress_register_configurator(h2o_globalconf_t *conf)
{
struct compress_configurator_t *c = (void *)h2o_configurator_create(conf, sizeof(*c));
c->super.enter = on_config_enter;
c->super.exit = on_config_exit;
h2o_configurator_define_command(&c->super, "compress", H2O_CONFIGURATOR_FLAG_ALL_LEVELS, on_config_compress);
h2o_configurator_define_command(&c->super, "compress-minimum-size",
H2O_CONFIGURATOR_FLAG_ALL_LEVELS | H2O_CONFIGURATOR_FLAG_EXPECT_SCALAR,
on_config_compress_min_size);
h2o_configurator_define_command(&c->super, "gzip", H2O_CONFIGURATOR_FLAG_ALL_LEVELS | H2O_CONFIGURATOR_FLAG_EXPECT_SCALAR,
on_config_gzip);
c->vars = c->_vars_stack;
c->vars->gzip.quality = -1;
c->vars->brotli.quality = -1;
}
|
