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
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
|
// SPDX-License-Identifier: GPL-3.0-or-later
#include "dyncfg-internals.h"
#include "dyncfg.h"
void dyncfg_file_delete(const char *id) {
CLEAN_CHAR_P *escaped_id = dyncfg_escape_id_for_filename(id);
char filename[FILENAME_MAX];
snprintfz(filename, sizeof(filename), "%s/%s.dyncfg", dyncfg_globals.dir, escaped_id);
unlink(filename);
}
void dyncfg_file_save(const char *id, DYNCFG *df) {
CLEAN_CHAR_P *escaped_id = dyncfg_escape_id_for_filename(id);
char filename[FILENAME_MAX];
snprintfz(filename, sizeof(filename), "%s/%s.dyncfg", dyncfg_globals.dir, escaped_id);
FILE *fp = fopen(filename, "w");
if(!fp) {
nd_log(NDLS_DAEMON, NDLP_ERR, "DYNCFG: cannot create file '%s'", filename);
return;
}
df->dyncfg.modified_ut = now_realtime_usec();
if(!df->dyncfg.created_ut)
df->dyncfg.created_ut = df->dyncfg.modified_ut;
fprintf(fp, "version=%zu\n", DYNCFG_VERSION);
fprintf(fp, "id=%s\n", id);
if(df->template)
fprintf(fp, "template=%s\n", string2str(df->template));
char uuid_str[UUID_COMPACT_STR_LEN];
uuid_unparse_lower_compact(df->host_uuid.uuid, uuid_str);
fprintf(fp, "host=%s\n", uuid_str);
fprintf(fp, "path=%s\n", string2str(df->path));
fprintf(fp, "type=%s\n", dyncfg_id2type(df->type));
fprintf(fp, "source_type=%s\n", dyncfg_id2source_type(df->dyncfg.source_type));
fprintf(fp, "source=%s\n", string2str(df->dyncfg.source));
fprintf(fp, "created=%"PRIu64"\n", df->dyncfg.created_ut);
fprintf(fp, "modified=%"PRIu64"\n", df->dyncfg.modified_ut);
fprintf(fp, "sync=%s\n", df->sync ? "true" : "false");
fprintf(fp, "user_disabled=%s\n", df->dyncfg.user_disabled ? "true" : "false");
fprintf(fp, "saves=%"PRIu32"\n", ++df->dyncfg.saves);
fprintf(fp, "cmds=");
dyncfg_cmds2fp(df->cmds, fp);
fprintf(fp, "\n");
if(df->dyncfg.payload && buffer_strlen(df->dyncfg.payload) > 0) {
fprintf(fp, "content_type=%s\n", content_type_id2string(df->dyncfg.payload->content_type));
fprintf(fp, "content_length=%zu\n", buffer_strlen(df->dyncfg.payload));
fprintf(fp, "---\n");
fwrite(buffer_tostring(df->dyncfg.payload), 1, buffer_strlen(df->dyncfg.payload), fp);
}
fclose(fp);
}
void dyncfg_file_load(const char *filename) {
FILE *fp = fopen(filename, "r");
if (!fp) {
nd_log(NDLS_DAEMON, NDLP_ERR, "DYNCFG: cannot open file '%s'", filename);
return;
}
DYNCFG tmp = { 0 };
char line[PLUGINSD_LINE_MAX];
CLEAN_CHAR_P *id = NULL;
HTTP_CONTENT_TYPE content_type = CT_NONE;
size_t content_length = 0;
bool read_payload = false;
while (fgets(line, sizeof(line), fp)) {
if(strcmp(line, "---\n") == 0) {
read_payload = true;
break;
}
char *value = strchr(line, '=');
if(!value) continue;
*value++ = '\0';
value = trim(value);
if(!value) continue;
char *key = trim(line);
if(!key) continue;
// Parse key-value pairs
if (strcmp(key, "version") == 0) {
size_t version = strtoull(value, NULL, 10);
if(version > DYNCFG_VERSION)
nd_log(NDLS_DAEMON, NDLP_NOTICE,
"DYNCFG: configuration file '%s' has version %zu, which is newer than our version %zu",
filename, version, DYNCFG_VERSION);
} else if (strcmp(key, "id") == 0) {
freez(id);
id = strdupz(value);
} else if (strcmp(key, "template") == 0) {
tmp.template = string_strdupz(value);
} else if (strcmp(key, "host") == 0) {
uuid_parse_flexi(value, tmp.host_uuid.uuid);
} else if (strcmp(key, "path") == 0) {
tmp.path = string_strdupz(value);
} else if (strcmp(key, "type") == 0) {
tmp.type = dyncfg_type2id(value);
} else if (strcmp(key, "source_type") == 0) {
tmp.dyncfg.source_type = dyncfg_source_type2id(value);
} else if (strcmp(key, "source") == 0) {
tmp.dyncfg.source = string_strdupz(value);
} else if (strcmp(key, "created") == 0) {
tmp.dyncfg.created_ut = strtoull(value, NULL, 10);
} else if (strcmp(key, "modified") == 0) {
tmp.dyncfg.modified_ut = strtoull(value, NULL, 10);
} else if (strcmp(key, "sync") == 0) {
tmp.sync = (strcmp(value, "true") == 0);
} else if (strcmp(key, "user_disabled") == 0) {
tmp.dyncfg.user_disabled = (strcmp(value, "true") == 0);
} else if (strcmp(key, "saves") == 0) {
tmp.dyncfg.saves = strtoull(value, NULL, 10);
} else if (strcmp(key, "content_type") == 0) {
content_type = content_type_string2id(value);
} else if (strcmp(key, "content_length") == 0) {
content_length = strtoull(value, NULL, 10);
} else if (strcmp(key, "cmds") == 0) {
tmp.cmds = dyncfg_cmds2id(value);
}
}
if (read_payload) {
// Determine the actual size of the remaining file content
long saved_position = ftell(fp); // Save current position
fseek(fp, 0, SEEK_END);
long total_size = ftell(fp); // Total size of the file
size_t actual_size = total_size - saved_position; // Calculate remaining content size
fseek(fp, saved_position, SEEK_SET); // Reset file pointer to the beginning of the payload
// Use actual_size instead of content_length to handle the whole remaining file
tmp.dyncfg.payload = buffer_create(actual_size, NULL);
tmp.dyncfg.payload->content_type = content_type;
buffer_need_bytes(tmp.dyncfg.payload, actual_size);
tmp.dyncfg.payload->len = fread(tmp.dyncfg.payload->buffer, 1, actual_size, fp);
if (content_length != tmp.dyncfg.payload->len) {
nd_log(NDLS_DAEMON, NDLP_WARNING,
"DYNCFG: content_length %zu does not match actual payload size %zu for file '%s'",
content_length, actual_size, filename);
}
}
fclose(fp);
if(!id) {
nd_log(NDLS_DAEMON, NDLP_ERR,
"DYNCFG: configuration file '%s' does not include a unique id. Ignoring it.",
filename);
dyncfg_cleanup(&tmp);
return;
}
tmp.dyncfg.status = DYNCFG_STATUS_ORPHAN;
tmp.dyncfg.restart_required = false;
dyncfg_set_current_from_dyncfg(&tmp);
dictionary_set(dyncfg_globals.nodes, id, &tmp, sizeof(tmp));
}
void dyncfg_load_all(void) {
DIR *dir = opendir(dyncfg_globals.dir);
if (!dir) {
nd_log(NDLS_DAEMON, NDLP_ERR, "DYNCFG: cannot open directory '%s'", dyncfg_globals.dir);
return;
}
struct dirent *entry;
char filepath[PATH_MAX];
while ((entry = readdir(dir)) != NULL) {
if ((entry->d_type == DT_REG || entry->d_type == DT_LNK) && strendswith(entry->d_name, ".dyncfg")) {
snprintf(filepath, sizeof(filepath), "%s/%s", dyncfg_globals.dir, entry->d_name);
dyncfg_file_load(filepath);
}
}
closedir(dir);
}
// ----------------------------------------------------------------------------
// schemas loading
static bool dyncfg_read_file_to_buffer(const char *filename, BUFFER *dst) {
int fd = open(filename, O_RDONLY | O_CLOEXEC, 0666);
if(unlikely(fd == -1))
return false;
struct stat st = { 0 };
if(fstat(fd, &st) != 0) {
close(fd);
return false;
}
buffer_flush(dst);
buffer_need_bytes(dst, st.st_size + 1); // +1 for the terminating zero
ssize_t r = read(fd, (char*)dst->buffer, st.st_size);
if(unlikely(r == -1)) {
close(fd);
return false;
}
dst->len = r;
dst->buffer[dst->len] = '\0';
close(fd);
return true;
}
bool dyncfg_get_schema(const char *id, BUFFER *dst) {
char filename[FILENAME_MAX + 1];
snprintfz(filename, sizeof(filename), "%s/schema.d/%s.json", netdata_configured_user_config_dir, id);
if(dyncfg_read_file_to_buffer(filename, dst))
return true;
snprintfz(filename, sizeof(filename), "%s/schema.d/%s.json", netdata_configured_stock_config_dir, id);
if(dyncfg_read_file_to_buffer(filename, dst))
return true;
return false;
}
|
