/
sql_driver.go
374 lines (323 loc) · 10.3 KB
/
sql_driver.go
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
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
335
336
337
338
339
340
341
342
343
344
345
346
347
348
349
350
351
352
353
354
355
356
357
358
359
360
361
362
363
364
365
366
367
368
369
370
371
372
373
374
// Copyright 2020 New Relic Corporation. All rights reserved.
// SPDX-License-Identifier: Apache-2.0
//go:build go1.10
// +build go1.10
package newrelic
import (
"context"
"database/sql/driver"
"fmt"
"time"
)
// SQLDriverSegmentBuilder populates DatastoreSegments for sql.Driver
// instrumentation. Use this to instrument a database that is not supported by
// an existing integration package (nrmysql, nrpq, and nrsqlite3). See
// https://github.com/newrelic/go-agent/blob/master/v3/integrations/nrmysql/nrmysql.go
// for example use.
type SQLDriverSegmentBuilder struct {
BaseSegment DatastoreSegment
ParseQuery func(segment *DatastoreSegment, query string)
ParseDSN func(segment *DatastoreSegment, dataSourceName string)
}
// InstrumentSQLDriver wraps a driver.Driver, adding instrumentation for exec
// and query calls made with a transaction-containing context. Use this to
// instrument a database driver that is not supported by an existing integration
// package (nrmysql, nrpq, and nrsqlite3). See
// https://github.com/newrelic/go-agent/blob/master/v3/integrations/nrmysql/nrmysql.go
// for example use.
func InstrumentSQLDriver(d driver.Driver, bld SQLDriverSegmentBuilder) driver.Driver {
return optionalMethodsDriver(&wrapDriver{bld: bld, original: d})
}
// InstrumentSQLConnector wraps a driver.Connector, adding instrumentation for
// exec and query calls made with a transaction-containing context. Use this to
// instrument a database connector that is not supported by an existing
// integration package (nrmysql, nrpq, and nrsqlite3). See
// https://github.com/newrelic/go-agent/blob/master/v3/integrations/nrmysql/nrmysql.go
// for example use.
func InstrumentSQLConnector(connector driver.Connector, bld SQLDriverSegmentBuilder) driver.Connector {
return &wrapConnector{original: connector, bld: bld}
}
func sendSecureEventSQL(query, args any) any {
return secureAgent.SendEvent("SQL", query, args)
}
func sendSecureEventSQLPrepare(query, obj any) {
secureAgent.SendEvent("SQL_PREPARE", query, fmt.Sprintf("%p", obj))
}
func sendSecureEventSQLPrepareArgs(args, obj any) any {
return secureAgent.SendEvent("SQL_PREPARE_ARGS", args, fmt.Sprintf("%p", obj))
}
func (bld SQLDriverSegmentBuilder) useDSN(dsn string) SQLDriverSegmentBuilder {
if f := bld.ParseDSN; f != nil {
f(&bld.BaseSegment, dsn)
}
return bld
}
func (bld SQLDriverSegmentBuilder) useQuery(query string) SQLDriverSegmentBuilder {
if f := bld.ParseQuery; f != nil {
f(&bld.BaseSegment, query)
}
return bld
}
func (bld SQLDriverSegmentBuilder) startSegment(ctx context.Context) DatastoreSegment {
return bld.startSegmentAt(ctx, time.Now())
}
func (bld SQLDriverSegmentBuilder) startSegmentAt(ctx context.Context, at time.Time) DatastoreSegment {
segment := bld.BaseSegment
segment.StartTime = FromContext(ctx).startSegmentAt(at)
return segment
}
type wrapDriver struct {
bld SQLDriverSegmentBuilder
original driver.Driver
}
type wrapConnector struct {
bld SQLDriverSegmentBuilder
original driver.Connector
}
type wrapConn struct {
bld SQLDriverSegmentBuilder
original driver.Conn
}
type wrapStmt struct {
bld SQLDriverSegmentBuilder
original driver.Stmt
}
func (w *wrapDriver) Open(name string) (driver.Conn, error) {
original, err := w.original.Open(name)
if err != nil {
return nil, err
}
return optionalMethodsConn(&wrapConn{
original: original,
bld: w.bld.useDSN(name),
}), nil
}
// OpenConnector implements DriverContext.
func (w *wrapDriver) OpenConnector(name string) (driver.Connector, error) {
original, err := w.original.(driver.DriverContext).OpenConnector(name)
if err != nil {
return nil, err
}
return &wrapConnector{
original: original,
bld: w.bld.useDSN(name),
}, nil
}
func (w *wrapConnector) Connect(ctx context.Context) (driver.Conn, error) {
original, err := w.original.Connect(ctx)
if err != nil {
return nil, err
}
return optionalMethodsConn(&wrapConn{
bld: w.bld,
original: original,
}), nil
}
func (w *wrapConnector) Driver() driver.Driver {
return optionalMethodsDriver(&wrapDriver{
bld: w.bld,
original: w.original.Driver(),
})
}
func prepare(original driver.Stmt, err error, bld SQLDriverSegmentBuilder, query string) (driver.Stmt, error) {
if err != nil {
return nil, err
}
return optionalMethodsStmt(&wrapStmt{
bld: bld.useQuery(query),
original: original,
}), nil
}
func (w *wrapConn) Prepare(query string) (driver.Stmt, error) {
original, err := w.original.Prepare(query)
if IsSecurityAgentPresent() {
sendSecureEventSQLPrepare(query, original)
}
return prepare(original, err, w.bld, query)
}
// PrepareContext implements ConnPrepareContext.
func (w *wrapConn) PrepareContext(ctx context.Context, query string) (driver.Stmt, error) {
original, err := w.original.(driver.ConnPrepareContext).PrepareContext(ctx, query)
if IsSecurityAgentPresent() {
sendSecureEventSQLPrepare(query, original)
}
return prepare(original, err, w.bld, query)
}
func (w *wrapConn) Close() error {
return w.original.Close()
}
func (w *wrapConn) Begin() (driver.Tx, error) {
return w.original.Begin()
}
// BeginTx implements ConnBeginTx.
func (w *wrapConn) BeginTx(ctx context.Context, opts driver.TxOptions) (driver.Tx, error) {
return w.original.(driver.ConnBeginTx).BeginTx(ctx, opts)
}
// Exec implements Execer.
func (w *wrapConn) Exec(query string, args []driver.Value) (driver.Result, error) {
var err error
var result driver.Result
if IsSecurityAgentPresent() {
secureAgentevent := sendSecureEventSQL(query, args)
defer func() {
secureAgent.SendExitEvent(secureAgentevent, err)
}()
}
result, err = w.original.(driver.Execer).Exec(query, args)
return result, err
}
// ExecContext implements ExecerContext.
func (w *wrapConn) ExecContext(ctx context.Context, query string, args []driver.NamedValue) (driver.Result, error) {
var err error
var result driver.Result
if IsSecurityAgentPresent() {
secureAgentevent := sendSecureEventSQL(query, args)
defer func() {
secureAgent.SendExitEvent(secureAgentevent, err)
}()
}
startTime := time.Now()
result, err = w.original.(driver.ExecerContext).ExecContext(ctx, query, args)
if err != driver.ErrSkip {
seg := w.bld.useQuery(query).startSegmentAt(ctx, startTime)
seg.End()
}
return result, err
}
// CheckNamedValue implements NamedValueChecker.
func (w *wrapConn) CheckNamedValue(v *driver.NamedValue) error {
return w.original.(driver.NamedValueChecker).CheckNamedValue(v)
}
// Ping implements Pinger.
func (w *wrapConn) Ping(ctx context.Context) error {
return w.original.(driver.Pinger).Ping(ctx)
}
func (w *wrapConn) Query(query string, args []driver.Value) (driver.Rows, error) {
var err error
var result driver.Rows
if IsSecurityAgentPresent() {
secureAgentevent := sendSecureEventSQL(query, args)
defer func() {
secureAgent.SendExitEvent(secureAgentevent, err)
}()
}
result, err = w.original.(driver.Queryer).Query(query, args)
return result, err
}
// QueryContext implements QueryerContext.
func (w *wrapConn) QueryContext(ctx context.Context, query string, args []driver.NamedValue) (driver.Rows, error) {
var rows driver.Rows
var err error
if IsSecurityAgentPresent() {
secureAgentevent := sendSecureEventSQL(query, args)
defer func() {
secureAgent.SendExitEvent(secureAgentevent, err)
}()
}
startTime := time.Now()
rows, err = w.original.(driver.QueryerContext).QueryContext(ctx, query, args)
if err != driver.ErrSkip {
seg := w.bld.useQuery(query).startSegmentAt(ctx, startTime)
seg.End()
}
return rows, err
}
// ResetSession implements SessionResetter.
func (w *wrapConn) ResetSession(ctx context.Context) error {
return w.original.(driver.SessionResetter).ResetSession(ctx)
}
func (w *wrapStmt) Close() error {
return w.original.Close()
}
func (w *wrapStmt) NumInput() int {
return w.original.NumInput()
}
func (w *wrapStmt) Exec(args []driver.Value) (driver.Result, error) {
var result driver.Result
var err error
if IsSecurityAgentPresent() {
secureAgentevent := sendSecureEventSQLPrepareArgs(args, w.original)
defer func() {
secureAgent.SendExitEvent(secureAgentevent, err)
}()
}
result, err = w.original.Exec(args)
return result, err
}
func (w *wrapStmt) Query(args []driver.Value) (driver.Rows, error) {
var result driver.Rows
var err error
if IsSecurityAgentPresent() {
secureAgentevent := sendSecureEventSQLPrepareArgs(args, w.original)
defer func() {
secureAgent.SendExitEvent(secureAgentevent, err)
}()
}
result, err = w.original.Query(args)
return result, err
}
// ColumnConverter implements ColumnConverter.
func (w *wrapStmt) ColumnConverter(idx int) driver.ValueConverter {
return w.original.(driver.ColumnConverter).ColumnConverter(idx)
}
// CheckNamedValue implements NamedValueChecker.
func (w *wrapStmt) CheckNamedValue(v *driver.NamedValue) error {
return w.original.(driver.NamedValueChecker).CheckNamedValue(v)
}
// ExecContext implements StmtExecContext.
func (w *wrapStmt) ExecContext(ctx context.Context, args []driver.NamedValue) (driver.Result, error) {
var result driver.Result
var err error
if IsSecurityAgentPresent() {
secureAgentevent := sendSecureEventSQLPrepareArgs(args, w.original)
defer func() {
secureAgent.SendExitEvent(secureAgentevent, err)
}()
}
segment := w.bld.startSegment(ctx)
result, err = w.original.(driver.StmtExecContext).ExecContext(ctx, args)
segment.End()
return result, err
}
// QueryContext implements StmtQueryContext.
func (w *wrapStmt) QueryContext(ctx context.Context, args []driver.NamedValue) (driver.Rows, error) {
var rows driver.Rows
var err error
if IsSecurityAgentPresent() {
secureAgentevent := sendSecureEventSQLPrepareArgs(args, w.original)
defer func() {
secureAgent.SendExitEvent(secureAgentevent, err)
}()
}
segment := w.bld.startSegment(ctx)
rows, err = w.original.(driver.StmtQueryContext).QueryContext(ctx, args)
segment.End()
return rows, err
}
var (
_ interface {
driver.Driver
driver.DriverContext
} = &wrapDriver{}
_ interface {
driver.Connector
} = &wrapConnector{}
_ interface {
driver.Conn
driver.ConnBeginTx
driver.ConnPrepareContext
driver.Execer
driver.ExecerContext
driver.NamedValueChecker
driver.Pinger
driver.Queryer
driver.QueryerContext
} = &wrapConn{}
_ interface {
driver.Stmt
driver.ColumnConverter
driver.NamedValueChecker
driver.StmtExecContext
driver.StmtQueryContext
} = &wrapStmt{}
)