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
173
174
175
176
177
178
179
180
181
182
183
184
185
186
|
/* -*- Mode: C; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
/* Fluent Bit
* ==========
* Copyright (C) 2015-2022 The Fluent Bit Authors
*
* Licensed 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.
*/
#include <stdlib.h>
#include <monkey/mk_core.h>
#include <fluent-bit/flb_info.h>
#include <fluent-bit/flb_mem.h>
#include <fluent-bit/flb_str.h>
#include <fluent-bit/flb_uri.h>
#include <fluent-bit/flb_utils.h>
/*
* Perform URI encoding for the given string. Always returns a new sds buffer,
* if it fails it returns NULL.
*/
flb_sds_t flb_uri_encode(const char *uri, size_t len)
{
int i;
flb_sds_t buf = NULL;
flb_sds_t tmp = NULL;
buf = flb_sds_create_size(len * 2);
if (!buf) {
flb_error("[uri] cannot allocate buffer for URI encoding");
return NULL;
}
for (i = 0; i < len; i++) {
if (flb_uri_to_encode(uri[i]) == FLB_TRUE) {
tmp = flb_sds_printf(&buf, "%%%02X", (unsigned char) *(uri + i));
if (!tmp) {
flb_error("[uri] error formatting special character");
flb_sds_destroy(buf);
return NULL;
}
continue;
}
/* Direct assignment, just copy the character */
if (buf) {
tmp = flb_sds_cat(buf, uri + i, 1);
if (!tmp) {
flb_error("[uri] error composing outgoing buffer");
flb_sds_destroy(buf);
return NULL;
}
buf = tmp;
}
}
return buf;
}
/* Retrieve a given field based on it expected position in the URI */
struct flb_uri_field *flb_uri_get(struct flb_uri *uri, int pos)
{
if (pos < 0) {
flb_trace("[uri] negative pos");
return NULL;
}
if (pos >= FLB_URI_MAX || pos > uri->count) {
flb_trace("[uri] requested position > FLB_URI_MAX");
return NULL;
}
return &uri->map[pos];
}
/*
* Given a 'URI' string, split the strings separated by a slash and create a
* context.
*/
struct flb_uri *flb_uri_create(const char *full_uri)
{
int end;
unsigned int len;
unsigned int val_len;
unsigned int i = 0;
char *val;
size_t uri_size;
void *p;
struct flb_uri_field *field;
struct flb_uri *uri;
/* Set the required memory space */
uri_size = sizeof(struct flb_uri);
uri_size += (sizeof(struct flb_uri_field) * FLB_URI_MAX);
p = flb_calloc(1, uri_size);
if (!p) {
perror("malloc");
return NULL;
}
/* Link the 'map' */
uri = p;
p = ((char *) p) + sizeof(struct flb_uri);
uri->map = p;
/* Initialize fields list */
mk_list_init(&uri->list);
uri->count = 0;
len = strlen(full_uri);
while (i < len && uri->count < FLB_URI_MAX) {
end = mk_string_char_search(full_uri + i, '/', len - i);
if (end >= 0 && end + i < len) {
end += i;
if (i == (unsigned int) end) {
i++;
continue;
}
val = mk_string_copy_substr(full_uri, i, end);
val_len = end - i;
}
else {
val = mk_string_copy_substr(full_uri, i, len);
val_len = len - i;
end = len;
}
/* Alloc node */
field = &uri->map[uri->count];
field->value = flb_strdup(val);
field->length = val_len;
mk_list_add(&field->_head, &uri->list);
i = end + 1;
uri->count++;
mk_mem_free(val);
}
uri->full = flb_strdup(full_uri);
return uri;
}
/* Destroy an URI context and it resources associated */
void flb_uri_destroy(struct flb_uri *uri)
{
struct mk_list *tmp;
struct mk_list *head;
struct flb_uri_field *field;
mk_list_foreach_safe(head, tmp, &uri->list) {
field = mk_list_entry(head, struct flb_uri_field, _head);
mk_list_del(&field->_head);
flb_free(field->value);
}
flb_free(uri->full);
flb_free(uri);
}
void flb_uri_dump(struct flb_uri *uri)
{
int i;
struct flb_uri_field *f;
for (i = 0; i < uri->count; i++) {
f = &uri->map[i];
printf("[%i] length=%lu value='%s'\n",
i, f->length, f->value);
}
}
|
