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
187
188
|
/*
* Copyright (c) 2015 Balabit
*
* This program is free software; you can redistribute it and/or modify it
* under the terms of the GNU General Public License version 2 as published
* by the Free Software Foundation, or (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
*
* As an additional exemption you are allowed to compile & link against the
* OpenSSL libraries as published by the OpenSSL project. See the file
* COPYING for details.
*/
#include "kv-parser.h"
#include "scanner/kv-scanner/kv-scanner.h"
#include "scratch-buffers.h"
gboolean
kv_parser_is_valid_separator_character(char c)
{
return (c != ' ' &&
c != '\'' &&
c != '\"' );
}
void
kv_parser_set_prefix(LogParser *p, const gchar *prefix)
{
KVParser *self = (KVParser *)p;
g_free(self->prefix);
if (prefix)
{
self->prefix = g_strdup(prefix);
self->prefix_len = strlen(prefix);
}
else
{
self->prefix = NULL;
self->prefix_len = 0;
}
}
void
kv_parser_set_value_separator(LogParser *s, gchar value_separator)
{
KVParser *self = (KVParser *) s;
self->value_separator = value_separator;
}
void
kv_parser_set_pair_separator(LogParser *s, const gchar *pair_separator)
{
KVParser *self = (KVParser *) s;
g_free(self->pair_separator);
self->pair_separator = g_strdup(pair_separator);
}
void
kv_parser_set_stray_words_value_name(LogParser *s, const gchar *value_name)
{
KVParser *self = (KVParser *) s;
g_free(self->stray_words_value_name);
self->stray_words_value_name = g_strdup(value_name);
}
static const gchar *
_get_formatted_key_with_prefix(KVParser *self, const gchar *key, GString *formatted_key)
{
if (formatted_key->len > 0)
g_string_truncate(formatted_key, self->prefix_len);
else
g_string_assign(formatted_key, self->prefix);
g_string_append(formatted_key, key);
return formatted_key->str;
}
static const gchar *
_get_formatted_key(KVParser *self, const gchar *key, GString *formatted_key)
{
if (!self->prefix)
return key;
return _get_formatted_key_with_prefix(self, key, formatted_key);
}
void
kv_parser_init_scanner_method(KVParser *self, KVScanner *kv_scanner)
{
kv_scanner_init(kv_scanner, self->value_separator, self->pair_separator, self->stray_words_value_name != NULL);
}
static gboolean
_process(LogParser *s, LogMessage **pmsg, const LogPathOptions *path_options, const gchar *input,
gsize input_len)
{
KVParser *self = (KVParser *) s;
KVScanner kv_scanner;
kv_parser_init_scanner(self, &kv_scanner);
GString *formatted_key = scratch_buffers_alloc();
log_msg_make_writable(pmsg, path_options);
msg_trace("kv-parser message processing started",
evt_tag_str("input", input),
evt_tag_str("prefix", self->prefix),
evt_tag_msg_reference(*pmsg));
/* FIXME: input length */
kv_scanner_input(&kv_scanner, input);
while (kv_scanner_scan_next(&kv_scanner))
{
/* FIXME: value length */
log_msg_set_value_by_name(*pmsg,
_get_formatted_key(self, kv_scanner_get_current_key(&kv_scanner), formatted_key),
kv_scanner_get_current_value(&kv_scanner), -1);
}
if (self->stray_words_value_name)
log_msg_set_value_by_name(*pmsg,
self->stray_words_value_name,
kv_scanner_get_stray_words(&kv_scanner), -1);
kv_scanner_deinit(&kv_scanner);
return TRUE;
}
LogPipe *
kv_parser_clone_method(KVParser *dst, KVParser *src)
{
log_parser_clone_settings(&src->super, &dst->super);
kv_parser_set_prefix(&dst->super, src->prefix);
kv_parser_set_value_separator(&dst->super, src->value_separator);
kv_parser_set_pair_separator(&dst->super, src->pair_separator);
kv_parser_set_stray_words_value_name(&dst->super, src->stray_words_value_name);
return &dst->super.super;
}
static LogPipe *
_clone(LogPipe *s)
{
KVParser *self = (KVParser *) s;
KVParser *cloned = (KVParser *) kv_parser_new(s->cfg);
return kv_parser_clone_method(cloned, self);
}
static void
_free(LogPipe *s)
{
KVParser *self = (KVParser *)s;
g_free(self->prefix);
g_free(self->pair_separator);
g_free(self->stray_words_value_name);
log_parser_free_method(s);
}
void
kv_parser_init_instance(KVParser *self, GlobalConfig *cfg)
{
log_parser_init_instance(&self->super, cfg);
self->super.super.free_fn = _free;
self->super.process = _process;
self->init_scanner = kv_parser_init_scanner_method;
self->value_separator = '=';
self->pair_separator = g_strdup(", ");
}
LogParser *
kv_parser_new(GlobalConfig *cfg)
{
KVParser *self = g_new0(KVParser, 1);
kv_parser_init_instance(self, cfg);
self->super.super.clone = _clone;
return &self->super;
}
|
