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
#[allow(unused_imports)]
#[macro_use]
extern crate slog;
mod collector_serializer;
mod glog_format;
mod http_local_slog_drain;
mod http_log_client;
mod kv_categorizer;
mod security;
mod simple_logger;
use crate::{
http_local_slog_drain::HttpLocalSlogDrain, http_log_client::HttpLogClient,
kv_categorizer::ErrorCategorizer,
};
use crossbeam::atomic::ArcCell;
use failure::prelude::*;
use glog_format::GlogFormat;
use lazy_static::lazy_static;
use slog::{o, Discard, Drain, FilterLevel, Logger, Never};
pub use slog::{slog_crit, slog_debug, slog_error, slog_info, slog_trace, slog_warn};
use slog_async::Async;
use slog_envlogger::{EnvLogger, LogBuilder};
pub use slog_scope::{crit, debug, error, info, trace, warn};
use slog_scope::{set_global_logger, GlobalLoggerGuard};
use slog_term::{PlainDecorator, TermDecorator};
use std::sync::{Arc, Mutex};
pub mod prelude {
pub use crate::{
log_collector_crit, log_collector_debug, log_collector_error, log_collector_info,
log_collector_trace, log_collector_warn,
security::{security_log, SecurityEvent},
};
pub use slog::{slog_crit, slog_debug, slog_error, slog_info, slog_trace, slog_warn};
pub use slog_scope::{crit, debug, error, info, trace, warn};
}
pub use simple_logger::{set_simple_logger, set_simple_logger_prefix};
pub fn set_default_global_logger(async_drain: bool, chan_size: Option<usize>) -> GlobalLoggerGuard {
let logger = create_default_root_logger(async_drain, chan_size);
set_global_logger(logger)
}
fn create_default_root_logger(async_drain: bool, chan_size: Option<usize>) -> Logger {
let drain = GlogFormat::new(PlainDecorator::new(::std::io::stderr()), ErrorCategorizer).fuse();
let logger = create_env_logger(drain);
get_logger(async_drain, chan_size, logger)
}
fn create_env_logger_with_level<D>(drain: D, level: FilterLevel) -> EnvLogger<D>
where
D: Drain<Err = Never, Ok = ()> + Send + 'static,
{
let mut builder = LogBuilder::new(drain);
builder = builder.filter(None, level);
if let Ok(s) = ::std::env::var("RUST_LOG") {
builder = builder.parse(&s);
}
builder.build()
}
fn create_env_logger<D>(drain: D) -> EnvLogger<D>
where
D: Drain<Err = Never, Ok = ()> + Send + 'static,
{
create_env_logger_with_level(drain, FilterLevel::Info)
}
fn create_test_root_logger() -> Logger {
let drain = GlogFormat::new(TermDecorator::new().build(), ErrorCategorizer).fuse();
let envlogger = create_env_logger_with_level(drain, FilterLevel::Debug);
Logger::root(Mutex::new(envlogger).fuse(), o!())
}
lazy_static! {
static ref TESTING_ENVLOGGER_GUARD: GlobalLoggerGuard = {
let logger = {
if ::std::env::var("RUST_LOG").is_ok() {
create_default_root_logger(false , None )
} else {
Logger::root(Discard, o!())
}
};
set_global_logger(logger)
};
static ref END_TO_END_TESTING_ENVLOGGER_GUARD: GlobalLoggerGuard = {
let logger = create_test_root_logger();
set_global_logger(logger)
};
}
lazy_static! {
static ref GLOBAL_LOG_COLLECTOR: ArcCell<Logger> =
ArcCell::new(Arc::new(Logger::root(Discard, o!())));
}
#[derive(Clone, Debug)]
pub enum LoggerType {
Http(String),
StdOutput,
}
pub fn set_global_log_collector(collector: LoggerType, is_async: bool, chan_size: Option<usize>) {
let log_collector = get_log_collector(collector, is_async, chan_size).unwrap();
GLOBAL_LOG_COLLECTOR.set(Arc::new(log_collector));
}
pub fn try_init_for_testing() {
::lazy_static::initialize(&TESTING_ENVLOGGER_GUARD);
}
pub fn init_for_e2e_testing() {
::lazy_static::initialize(&END_TO_END_TESTING_ENVLOGGER_GUARD);
}
fn get_log_collector(
collector: LoggerType,
is_async: bool,
chan_size: Option<usize>,
) -> Result<Logger> {
match collector {
LoggerType::Http(http_endpoint) => {
let client = HttpLogClient::new(http_endpoint);
let drain = HttpLocalSlogDrain::new(client?);
Ok(get_logger(is_async, chan_size, drain))
}
LoggerType::StdOutput => Ok(create_default_root_logger(is_async, chan_size)),
}
}
fn get_logger<D>(is_async: bool, chan_size: Option<usize>, drain: D) -> Logger
where
D: Drain<Err = Never, Ok = ()> + Send + 'static,
{
if is_async {
let async_builder = match chan_size {
Some(chan_size_inner) => Async::new(drain).chan_size(chan_size_inner),
None => Async::new(drain),
};
Logger::root(async_builder.build().fuse(), o!())
} else {
Logger::root(Mutex::new(drain).fuse(), o!())
}
}
pub fn with_logger<F, R>(f: F) -> R
where
F: FnOnce(&Logger) -> R,
{
f(&(*GLOBAL_LOG_COLLECTOR.get()))
}
#[macro_export]
macro_rules! log_collector_crit( ($($args:tt)+) => {
$crate::with_logger(|logger| slog_crit![logger, $($args)+])
};);
#[macro_export]
macro_rules! log_collector_error( ($($args:tt)+) => {
$crate::with_logger(|logger| slog_error![logger, $($args)+])
};);
#[macro_export]
macro_rules! log_collector_warn( ($($args:tt)+) => {
$crate::with_logger(|logger| slog_warn![logger, $($args)+])
};);
#[macro_export]
macro_rules! log_collector_info( ($($args:tt)+) => {
$crate::with_logger(|logger| slog_info![logger, $($args)+])
};);
#[macro_export]
macro_rules! log_collector_debug( ($($args:tt)+) => {
$crate::with_logger(|logger| slog_debug![logger, $($args)+])
};);
#[macro_export]
macro_rules! log_collector_trace( ($($args:tt)+) => {
$crate::with_logger(|logger| slog_trace![logger, $($args)+])
};);