mirror of https://github.com/jackc/pgx.git
63 lines
1.6 KiB
Go
63 lines
1.6 KiB
Go
package pgx
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import (
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"encoding/hex"
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"reflect"
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"regexp"
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"strconv"
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"strings"
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)
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var literalPattern *regexp.Regexp = regexp.MustCompile(`\$\d+`)
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func (c *Connection) QuoteString(input string) (output string) {
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output = "'" + strings.Replace(input, "'", "''", -1) + "'"
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return
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}
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func (c *Connection) QuoteIdentifier(input string) (output string) {
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output = `"` + strings.Replace(input, `"`, `""`, -1) + `"`
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return
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}
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func (c *Connection) SanitizeSql(sql string, args ...interface{}) (output string) {
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replacer := func(match string) (replacement string) {
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n, _ := strconv.ParseInt(match[1:], 10, 0)
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switch arg := args[n-1].(type) {
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case string:
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return c.QuoteString(arg)
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case int:
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return strconv.FormatInt(int64(arg), 10)
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case int8:
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return strconv.FormatInt(int64(arg), 10)
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case int16:
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return strconv.FormatInt(int64(arg), 10)
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case int32:
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return strconv.FormatInt(int64(arg), 10)
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case int64:
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return strconv.FormatInt(int64(arg), 10)
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case uint:
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return strconv.FormatUint(uint64(arg), 10)
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case uint8:
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return strconv.FormatUint(uint64(arg), 10)
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case uint16:
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return strconv.FormatUint(uint64(arg), 10)
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case uint32:
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return strconv.FormatUint(uint64(arg), 10)
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case uint64:
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return strconv.FormatUint(uint64(arg), 10)
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case float32:
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return strconv.FormatFloat(float64(arg), 'f', -1, 32)
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case float64:
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return strconv.FormatFloat(arg, 'f', -1, 64)
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case []byte:
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return `E'\\x` + hex.EncodeToString(arg) + `'`
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default:
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panic("Unable to sanitize type: " + reflect.TypeOf(arg).String())
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}
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}
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output = literalPattern.ReplaceAllStringFunc(sql, replacer)
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return
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}
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