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
|
//
// Created by Christopher on 11/12/18.
//
#include "health_cmdapi.h"
/**
* Free Silencers
*
* Clean the silencer structure
*
* @param t is the structure that will be cleaned.
*/
void free_silencers(SILENCER *t) {
if (!t) return;
if (t->next) free_silencers(t->next);
debug(D_HEALTH, "HEALTH command API: Freeing silencer %s:%s:%s:%s:%s", t->alarms,
t->charts, t->contexts, t->hosts, t->families);
simple_pattern_free(t->alarms_pattern);
simple_pattern_free(t->charts_pattern);
simple_pattern_free(t->contexts_pattern);
simple_pattern_free(t->hosts_pattern);
simple_pattern_free(t->families_pattern);
freez(t->alarms);
freez(t->charts);
freez(t->contexts);
freez(t->hosts);
freez(t->families);
freez(t);
return;
}
/**
* Silencers to JSON Entry
*
* Fill the buffer with the other values given.
*
* @param wb a pointer to the output buffer
* @param var the json variable
* @param val the json value
* @param hasprev has it a previous value?
*
* @return
*/
int health_silencers2json_entry(BUFFER *wb, char* var, char* val, int hasprev) {
if (val) {
buffer_sprintf(wb, "%s\n\t\t\t\"%s\": \"%s\"", (hasprev)?",":"", var, val);
return 1;
} else {
return hasprev;
}
}
/**
* Silencer to JSON
*
* Write the silencer values using JSON format inside a buffer.
*
* @param wb is the buffer to write the silencers.
*/
void health_silencers2json(BUFFER *wb) {
buffer_sprintf(wb, "{\n\t\"all\": %s,"
"\n\t\"type\": \"%s\","
"\n\t\"silencers\": [",
(silencers->all_alarms)?"true":"false",
(silencers->stype == STYPE_NONE)?"None":((silencers->stype == STYPE_DISABLE_ALARMS)?"DISABLE":"SILENCE"));
SILENCER *silencer;
int i = 0, j = 0;
for(silencer = silencers->silencers; silencer ; silencer = silencer->next) {
if(likely(i)) buffer_strcat(wb, ",");
buffer_strcat(wb, "\n\t\t{");
j=health_silencers2json_entry(wb, HEALTH_ALARM_KEY, silencer->alarms, j);
j=health_silencers2json_entry(wb, HEALTH_CHART_KEY, silencer->charts, j);
j=health_silencers2json_entry(wb, HEALTH_CONTEXT_KEY, silencer->contexts, j);
j=health_silencers2json_entry(wb, HEALTH_HOST_KEY, silencer->hosts, j);
health_silencers2json_entry(wb, HEALTH_FAMILIES_KEY, silencer->families, j);
j=0;
buffer_strcat(wb, "\n\t\t}");
i++;
}
if(likely(i)) buffer_strcat(wb, "\n\t");
buffer_strcat(wb, "]\n}\n");
}
/**
* Silencer to FILE
*
* Write the silencer buffer to a file.
* @param wb
*/
void health_silencers2file(BUFFER *wb) {
if (wb->len == 0) return;
FILE *fd = fopen(silencers_filename, "wb");
if(fd) {
size_t written = (size_t)fprintf(fd, "%s", wb->buffer) ;
if (written == wb->len ) {
info("Silencer changes written to %s", silencers_filename);
}
fclose(fd);
return;
}
error("Silencer changes could not be written to %s. Error %s", silencers_filename, strerror(errno));
}
/**
* Request V1 MGMT Health
*
* Function called by api to management the health.
*
* @param host main structure with client information!
* @param w is the structure with all information of the client request.
* @param url is the url that netdata is working
*
* @return It returns 200 on success and another code otherwise.
*/
int web_client_api_request_v1_mgmt_health(RRDHOST *host, struct web_client *w, char *url) {
int ret;
(void) host;
BUFFER *wb = w->response.data;
buffer_flush(wb);
wb->contenttype = CT_TEXT_PLAIN;
buffer_flush(w->response.data);
//Local instance of the silencer
SILENCER *silencer = NULL;
int config_changed = 1;
if (!w->auth_bearer_token) {
buffer_strcat(wb, HEALTH_CMDAPI_MSG_AUTHERROR);
ret = HTTP_RESP_FORBIDDEN;
} else {
debug(D_HEALTH, "HEALTH command API: Comparing secret '%s' to '%s'", w->auth_bearer_token, api_secret);
if (strcmp(w->auth_bearer_token, api_secret)) {
buffer_strcat(wb, HEALTH_CMDAPI_MSG_AUTHERROR);
ret = HTTP_RESP_FORBIDDEN;
} else {
while (url) {
char *value = mystrsep(&url, "&");
if (!value || !*value) continue;
char *key = mystrsep(&value, "=");
if (!key || !*key) continue;
if (!value || !*value) continue;
debug(D_WEB_CLIENT, "%llu: API v1 health query param '%s' with value '%s'", w->id, key, value);
// name and value are now the parameters
if (!strcmp(key, "cmd")) {
if (!strcmp(value, HEALTH_CMDAPI_CMD_SILENCEALL)) {
silencers->all_alarms = 1;
silencers->stype = STYPE_SILENCE_NOTIFICATIONS;
buffer_strcat(wb, HEALTH_CMDAPI_MSG_SILENCEALL);
} else if (!strcmp(value, HEALTH_CMDAPI_CMD_DISABLEALL)) {
silencers->all_alarms = 1;
silencers->stype = STYPE_DISABLE_ALARMS;
buffer_strcat(wb, HEALTH_CMDAPI_MSG_DISABLEALL);
} else if (!strcmp(value, HEALTH_CMDAPI_CMD_SILENCE)) {
silencers->stype = STYPE_SILENCE_NOTIFICATIONS;
buffer_strcat(wb, HEALTH_CMDAPI_MSG_SILENCE);
} else if (!strcmp(value, HEALTH_CMDAPI_CMD_DISABLE)) {
silencers->stype = STYPE_DISABLE_ALARMS;
buffer_strcat(wb, HEALTH_CMDAPI_MSG_DISABLE);
} else if (!strcmp(value, HEALTH_CMDAPI_CMD_RESET)) {
silencers->all_alarms = 0;
silencers->stype = STYPE_NONE;
free_silencers(silencers->silencers);
silencers->silencers = NULL;
buffer_strcat(wb, HEALTH_CMDAPI_MSG_RESET);
} else if (!strcmp(value, HEALTH_CMDAPI_CMD_LIST)) {
w->response.data->contenttype = CT_APPLICATION_JSON;
health_silencers2json(wb);
config_changed=0;
}
} else {
silencer = health_silencers_addparam(silencer, key, value);
}
}
if (likely(silencer)) {
health_silencers_add(silencer);
buffer_strcat(wb, HEALTH_CMDAPI_MSG_ADDED);
if (silencers->stype == STYPE_NONE) {
buffer_strcat(wb, HEALTH_CMDAPI_MSG_STYPEWARNING);
}
}
if (unlikely(silencers->stype != STYPE_NONE && !silencers->all_alarms && !silencers->silencers)) {
buffer_strcat(wb, HEALTH_CMDAPI_MSG_NOSELECTORWARNING);
}
ret = HTTP_RESP_OK;
}
}
w->response.data = wb;
buffer_no_cacheable(w->response.data);
if (ret == HTTP_RESP_OK && config_changed) {
BUFFER *jsonb = buffer_create(200);
health_silencers2json(jsonb);
health_silencers2file(jsonb);
}
return ret;
}
|
