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[WIP] add support SEE (crypto key) #487

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[WIP] add support SEE (crypto key) #487

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7c9aedc
add support SEE
mattn Nov 15, 2017
47ea538
Merge branch 'master' into see
mattn Apr 19, 2018
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1 change: 0 additions & 1 deletion .travis.yml
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Original file line number Diff line number Diff line change
Expand Up @@ -7,7 +7,6 @@ env:
- GOTAGS=trace
- GOTAGS=vtable
go:
- 1.7.x
- 1.8.x
- 1.9.x
- master
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2 changes: 1 addition & 1 deletion README.md
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Expand Up @@ -46,7 +46,7 @@ FAQ

Use `go build --tags "icu"`

Available extensions: `json1`, `fts5`, `icu`
Available extensions: `json1`, `fts5`, `icu`, `see`

* Can't build go-sqlite3 on windows 64bit.

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16 changes: 16 additions & 0 deletions sqlite3.go
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Expand Up @@ -789,6 +789,8 @@ func errorString(err Error) string {
// Enable or disable enforcement of foreign keys. X can be 1 or 0.
// _recursive_triggers=X
// Enable or disable recursive triggers. X can be 1 or 0.
// _crypto_key=XXX
// Specify symmetric crypto key for use by SEE. X must be text key without quotes.
// _mutex=XXX
// Specify mutex mode. XXX can be "no", "full".
func (d *SQLiteDriver) Open(dsn string) (driver.Conn, error) {
Expand All @@ -801,6 +803,7 @@ func (d *SQLiteDriver) Open(dsn string) (driver.Conn, error) {
busyTimeout := 5000
foreignKeys := -1
recursiveTriggers := -1
cryptoKey := ""
mutex := C.int(C.SQLITE_OPEN_FULLMUTEX)
pos := strings.IndexRune(dsn, '?')
if pos >= 1 {
Expand Down Expand Up @@ -868,6 +871,9 @@ func (d *SQLiteDriver) Open(dsn string) (driver.Conn, error) {
}
}

// _crypto_key
cryptoKey = params.Get("_crypto_key")

// _mutex
if val := params.Get("_mutex"); val != "" {
switch val {
Expand Down Expand Up @@ -936,6 +942,16 @@ func (d *SQLiteDriver) Open(dsn string) (driver.Conn, error) {
}
}

// crypto key must be specified BEFORE any other action
// and works only with SEE version of Sqlite3
if cryptoKey != "" {
tmp := fmt.Sprintf("PRAGMA key = '%s'", strings.Replace(cryptoKey, "'", "''", -1))
if err := exec(tmp); err != nil {
C.sqlite3_close_v2(db)
return nil, err
}
}

conn := &SQLiteConn{db: db, loc: loc, txlock: txlock}

if len(d.Extensions) > 0 {
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