mirror of
https://github.com/TwiN/gatus.git
synced 2024-11-22 16:03:44 +01:00
519 lines
15 KiB
Go
519 lines
15 KiB
Go
package pq
|
|
|
|
import (
|
|
"database/sql/driver"
|
|
"fmt"
|
|
"io"
|
|
"net"
|
|
"runtime"
|
|
)
|
|
|
|
// Error severities
|
|
const (
|
|
Efatal = "FATAL"
|
|
Epanic = "PANIC"
|
|
Ewarning = "WARNING"
|
|
Enotice = "NOTICE"
|
|
Edebug = "DEBUG"
|
|
Einfo = "INFO"
|
|
Elog = "LOG"
|
|
)
|
|
|
|
// Error represents an error communicating with the server.
|
|
//
|
|
// See http://www.postgresql.org/docs/current/static/protocol-error-fields.html for details of the fields
|
|
type Error struct {
|
|
Severity string
|
|
Code ErrorCode
|
|
Message string
|
|
Detail string
|
|
Hint string
|
|
Position string
|
|
InternalPosition string
|
|
InternalQuery string
|
|
Where string
|
|
Schema string
|
|
Table string
|
|
Column string
|
|
DataTypeName string
|
|
Constraint string
|
|
File string
|
|
Line string
|
|
Routine string
|
|
}
|
|
|
|
// ErrorCode is a five-character error code.
|
|
type ErrorCode string
|
|
|
|
// Name returns a more human friendly rendering of the error code, namely the
|
|
// "condition name".
|
|
//
|
|
// See http://www.postgresql.org/docs/9.3/static/errcodes-appendix.html for
|
|
// details.
|
|
func (ec ErrorCode) Name() string {
|
|
return errorCodeNames[ec]
|
|
}
|
|
|
|
// ErrorClass is only the class part of an error code.
|
|
type ErrorClass string
|
|
|
|
// Name returns the condition name of an error class. It is equivalent to the
|
|
// condition name of the "standard" error code (i.e. the one having the last
|
|
// three characters "000").
|
|
func (ec ErrorClass) Name() string {
|
|
return errorCodeNames[ErrorCode(ec+"000")]
|
|
}
|
|
|
|
// Class returns the error class, e.g. "28".
|
|
//
|
|
// See http://www.postgresql.org/docs/9.3/static/errcodes-appendix.html for
|
|
// details.
|
|
func (ec ErrorCode) Class() ErrorClass {
|
|
return ErrorClass(ec[0:2])
|
|
}
|
|
|
|
// errorCodeNames is a mapping between the five-character error codes and the
|
|
// human readable "condition names". It is derived from the list at
|
|
// http://www.postgresql.org/docs/9.3/static/errcodes-appendix.html
|
|
var errorCodeNames = map[ErrorCode]string{
|
|
// Class 00 - Successful Completion
|
|
"00000": "successful_completion",
|
|
// Class 01 - Warning
|
|
"01000": "warning",
|
|
"0100C": "dynamic_result_sets_returned",
|
|
"01008": "implicit_zero_bit_padding",
|
|
"01003": "null_value_eliminated_in_set_function",
|
|
"01007": "privilege_not_granted",
|
|
"01006": "privilege_not_revoked",
|
|
"01004": "string_data_right_truncation",
|
|
"01P01": "deprecated_feature",
|
|
// Class 02 - No Data (this is also a warning class per the SQL standard)
|
|
"02000": "no_data",
|
|
"02001": "no_additional_dynamic_result_sets_returned",
|
|
// Class 03 - SQL Statement Not Yet Complete
|
|
"03000": "sql_statement_not_yet_complete",
|
|
// Class 08 - Connection Exception
|
|
"08000": "connection_exception",
|
|
"08003": "connection_does_not_exist",
|
|
"08006": "connection_failure",
|
|
"08001": "sqlclient_unable_to_establish_sqlconnection",
|
|
"08004": "sqlserver_rejected_establishment_of_sqlconnection",
|
|
"08007": "transaction_resolution_unknown",
|
|
"08P01": "protocol_violation",
|
|
// Class 09 - Triggered Action Exception
|
|
"09000": "triggered_action_exception",
|
|
// Class 0A - Feature Not Supported
|
|
"0A000": "feature_not_supported",
|
|
// Class 0B - Invalid Transaction Initiation
|
|
"0B000": "invalid_transaction_initiation",
|
|
// Class 0F - Locator Exception
|
|
"0F000": "locator_exception",
|
|
"0F001": "invalid_locator_specification",
|
|
// Class 0L - Invalid Grantor
|
|
"0L000": "invalid_grantor",
|
|
"0LP01": "invalid_grant_operation",
|
|
// Class 0P - Invalid Role Specification
|
|
"0P000": "invalid_role_specification",
|
|
// Class 0Z - Diagnostics Exception
|
|
"0Z000": "diagnostics_exception",
|
|
"0Z002": "stacked_diagnostics_accessed_without_active_handler",
|
|
// Class 20 - Case Not Found
|
|
"20000": "case_not_found",
|
|
// Class 21 - Cardinality Violation
|
|
"21000": "cardinality_violation",
|
|
// Class 22 - Data Exception
|
|
"22000": "data_exception",
|
|
"2202E": "array_subscript_error",
|
|
"22021": "character_not_in_repertoire",
|
|
"22008": "datetime_field_overflow",
|
|
"22012": "division_by_zero",
|
|
"22005": "error_in_assignment",
|
|
"2200B": "escape_character_conflict",
|
|
"22022": "indicator_overflow",
|
|
"22015": "interval_field_overflow",
|
|
"2201E": "invalid_argument_for_logarithm",
|
|
"22014": "invalid_argument_for_ntile_function",
|
|
"22016": "invalid_argument_for_nth_value_function",
|
|
"2201F": "invalid_argument_for_power_function",
|
|
"2201G": "invalid_argument_for_width_bucket_function",
|
|
"22018": "invalid_character_value_for_cast",
|
|
"22007": "invalid_datetime_format",
|
|
"22019": "invalid_escape_character",
|
|
"2200D": "invalid_escape_octet",
|
|
"22025": "invalid_escape_sequence",
|
|
"22P06": "nonstandard_use_of_escape_character",
|
|
"22010": "invalid_indicator_parameter_value",
|
|
"22023": "invalid_parameter_value",
|
|
"2201B": "invalid_regular_expression",
|
|
"2201W": "invalid_row_count_in_limit_clause",
|
|
"2201X": "invalid_row_count_in_result_offset_clause",
|
|
"22009": "invalid_time_zone_displacement_value",
|
|
"2200C": "invalid_use_of_escape_character",
|
|
"2200G": "most_specific_type_mismatch",
|
|
"22004": "null_value_not_allowed",
|
|
"22002": "null_value_no_indicator_parameter",
|
|
"22003": "numeric_value_out_of_range",
|
|
"2200H": "sequence_generator_limit_exceeded",
|
|
"22026": "string_data_length_mismatch",
|
|
"22001": "string_data_right_truncation",
|
|
"22011": "substring_error",
|
|
"22027": "trim_error",
|
|
"22024": "unterminated_c_string",
|
|
"2200F": "zero_length_character_string",
|
|
"22P01": "floating_point_exception",
|
|
"22P02": "invalid_text_representation",
|
|
"22P03": "invalid_binary_representation",
|
|
"22P04": "bad_copy_file_format",
|
|
"22P05": "untranslatable_character",
|
|
"2200L": "not_an_xml_document",
|
|
"2200M": "invalid_xml_document",
|
|
"2200N": "invalid_xml_content",
|
|
"2200S": "invalid_xml_comment",
|
|
"2200T": "invalid_xml_processing_instruction",
|
|
// Class 23 - Integrity Constraint Violation
|
|
"23000": "integrity_constraint_violation",
|
|
"23001": "restrict_violation",
|
|
"23502": "not_null_violation",
|
|
"23503": "foreign_key_violation",
|
|
"23505": "unique_violation",
|
|
"23514": "check_violation",
|
|
"23P01": "exclusion_violation",
|
|
// Class 24 - Invalid Cursor State
|
|
"24000": "invalid_cursor_state",
|
|
// Class 25 - Invalid Transaction State
|
|
"25000": "invalid_transaction_state",
|
|
"25001": "active_sql_transaction",
|
|
"25002": "branch_transaction_already_active",
|
|
"25008": "held_cursor_requires_same_isolation_level",
|
|
"25003": "inappropriate_access_mode_for_branch_transaction",
|
|
"25004": "inappropriate_isolation_level_for_branch_transaction",
|
|
"25005": "no_active_sql_transaction_for_branch_transaction",
|
|
"25006": "read_only_sql_transaction",
|
|
"25007": "schema_and_data_statement_mixing_not_supported",
|
|
"25P01": "no_active_sql_transaction",
|
|
"25P02": "in_failed_sql_transaction",
|
|
// Class 26 - Invalid SQL Statement Name
|
|
"26000": "invalid_sql_statement_name",
|
|
// Class 27 - Triggered Data Change Violation
|
|
"27000": "triggered_data_change_violation",
|
|
// Class 28 - Invalid Authorization Specification
|
|
"28000": "invalid_authorization_specification",
|
|
"28P01": "invalid_password",
|
|
// Class 2B - Dependent Privilege Descriptors Still Exist
|
|
"2B000": "dependent_privilege_descriptors_still_exist",
|
|
"2BP01": "dependent_objects_still_exist",
|
|
// Class 2D - Invalid Transaction Termination
|
|
"2D000": "invalid_transaction_termination",
|
|
// Class 2F - SQL Routine Exception
|
|
"2F000": "sql_routine_exception",
|
|
"2F005": "function_executed_no_return_statement",
|
|
"2F002": "modifying_sql_data_not_permitted",
|
|
"2F003": "prohibited_sql_statement_attempted",
|
|
"2F004": "reading_sql_data_not_permitted",
|
|
// Class 34 - Invalid Cursor Name
|
|
"34000": "invalid_cursor_name",
|
|
// Class 38 - External Routine Exception
|
|
"38000": "external_routine_exception",
|
|
"38001": "containing_sql_not_permitted",
|
|
"38002": "modifying_sql_data_not_permitted",
|
|
"38003": "prohibited_sql_statement_attempted",
|
|
"38004": "reading_sql_data_not_permitted",
|
|
// Class 39 - External Routine Invocation Exception
|
|
"39000": "external_routine_invocation_exception",
|
|
"39001": "invalid_sqlstate_returned",
|
|
"39004": "null_value_not_allowed",
|
|
"39P01": "trigger_protocol_violated",
|
|
"39P02": "srf_protocol_violated",
|
|
// Class 3B - Savepoint Exception
|
|
"3B000": "savepoint_exception",
|
|
"3B001": "invalid_savepoint_specification",
|
|
// Class 3D - Invalid Catalog Name
|
|
"3D000": "invalid_catalog_name",
|
|
// Class 3F - Invalid Schema Name
|
|
"3F000": "invalid_schema_name",
|
|
// Class 40 - Transaction Rollback
|
|
"40000": "transaction_rollback",
|
|
"40002": "transaction_integrity_constraint_violation",
|
|
"40001": "serialization_failure",
|
|
"40003": "statement_completion_unknown",
|
|
"40P01": "deadlock_detected",
|
|
// Class 42 - Syntax Error or Access Rule Violation
|
|
"42000": "syntax_error_or_access_rule_violation",
|
|
"42601": "syntax_error",
|
|
"42501": "insufficient_privilege",
|
|
"42846": "cannot_coerce",
|
|
"42803": "grouping_error",
|
|
"42P20": "windowing_error",
|
|
"42P19": "invalid_recursion",
|
|
"42830": "invalid_foreign_key",
|
|
"42602": "invalid_name",
|
|
"42622": "name_too_long",
|
|
"42939": "reserved_name",
|
|
"42804": "datatype_mismatch",
|
|
"42P18": "indeterminate_datatype",
|
|
"42P21": "collation_mismatch",
|
|
"42P22": "indeterminate_collation",
|
|
"42809": "wrong_object_type",
|
|
"42703": "undefined_column",
|
|
"42883": "undefined_function",
|
|
"42P01": "undefined_table",
|
|
"42P02": "undefined_parameter",
|
|
"42704": "undefined_object",
|
|
"42701": "duplicate_column",
|
|
"42P03": "duplicate_cursor",
|
|
"42P04": "duplicate_database",
|
|
"42723": "duplicate_function",
|
|
"42P05": "duplicate_prepared_statement",
|
|
"42P06": "duplicate_schema",
|
|
"42P07": "duplicate_table",
|
|
"42712": "duplicate_alias",
|
|
"42710": "duplicate_object",
|
|
"42702": "ambiguous_column",
|
|
"42725": "ambiguous_function",
|
|
"42P08": "ambiguous_parameter",
|
|
"42P09": "ambiguous_alias",
|
|
"42P10": "invalid_column_reference",
|
|
"42611": "invalid_column_definition",
|
|
"42P11": "invalid_cursor_definition",
|
|
"42P12": "invalid_database_definition",
|
|
"42P13": "invalid_function_definition",
|
|
"42P14": "invalid_prepared_statement_definition",
|
|
"42P15": "invalid_schema_definition",
|
|
"42P16": "invalid_table_definition",
|
|
"42P17": "invalid_object_definition",
|
|
// Class 44 - WITH CHECK OPTION Violation
|
|
"44000": "with_check_option_violation",
|
|
// Class 53 - Insufficient Resources
|
|
"53000": "insufficient_resources",
|
|
"53100": "disk_full",
|
|
"53200": "out_of_memory",
|
|
"53300": "too_many_connections",
|
|
"53400": "configuration_limit_exceeded",
|
|
// Class 54 - Program Limit Exceeded
|
|
"54000": "program_limit_exceeded",
|
|
"54001": "statement_too_complex",
|
|
"54011": "too_many_columns",
|
|
"54023": "too_many_arguments",
|
|
// Class 55 - Object Not In Prerequisite State
|
|
"55000": "object_not_in_prerequisite_state",
|
|
"55006": "object_in_use",
|
|
"55P02": "cant_change_runtime_param",
|
|
"55P03": "lock_not_available",
|
|
// Class 57 - Operator Intervention
|
|
"57000": "operator_intervention",
|
|
"57014": "query_canceled",
|
|
"57P01": "admin_shutdown",
|
|
"57P02": "crash_shutdown",
|
|
"57P03": "cannot_connect_now",
|
|
"57P04": "database_dropped",
|
|
// Class 58 - System Error (errors external to PostgreSQL itself)
|
|
"58000": "system_error",
|
|
"58030": "io_error",
|
|
"58P01": "undefined_file",
|
|
"58P02": "duplicate_file",
|
|
// Class F0 - Configuration File Error
|
|
"F0000": "config_file_error",
|
|
"F0001": "lock_file_exists",
|
|
// Class HV - Foreign Data Wrapper Error (SQL/MED)
|
|
"HV000": "fdw_error",
|
|
"HV005": "fdw_column_name_not_found",
|
|
"HV002": "fdw_dynamic_parameter_value_needed",
|
|
"HV010": "fdw_function_sequence_error",
|
|
"HV021": "fdw_inconsistent_descriptor_information",
|
|
"HV024": "fdw_invalid_attribute_value",
|
|
"HV007": "fdw_invalid_column_name",
|
|
"HV008": "fdw_invalid_column_number",
|
|
"HV004": "fdw_invalid_data_type",
|
|
"HV006": "fdw_invalid_data_type_descriptors",
|
|
"HV091": "fdw_invalid_descriptor_field_identifier",
|
|
"HV00B": "fdw_invalid_handle",
|
|
"HV00C": "fdw_invalid_option_index",
|
|
"HV00D": "fdw_invalid_option_name",
|
|
"HV090": "fdw_invalid_string_length_or_buffer_length",
|
|
"HV00A": "fdw_invalid_string_format",
|
|
"HV009": "fdw_invalid_use_of_null_pointer",
|
|
"HV014": "fdw_too_many_handles",
|
|
"HV001": "fdw_out_of_memory",
|
|
"HV00P": "fdw_no_schemas",
|
|
"HV00J": "fdw_option_name_not_found",
|
|
"HV00K": "fdw_reply_handle",
|
|
"HV00Q": "fdw_schema_not_found",
|
|
"HV00R": "fdw_table_not_found",
|
|
"HV00L": "fdw_unable_to_create_execution",
|
|
"HV00M": "fdw_unable_to_create_reply",
|
|
"HV00N": "fdw_unable_to_establish_connection",
|
|
// Class P0 - PL/pgSQL Error
|
|
"P0000": "plpgsql_error",
|
|
"P0001": "raise_exception",
|
|
"P0002": "no_data_found",
|
|
"P0003": "too_many_rows",
|
|
// Class XX - Internal Error
|
|
"XX000": "internal_error",
|
|
"XX001": "data_corrupted",
|
|
"XX002": "index_corrupted",
|
|
}
|
|
|
|
func parseError(r *readBuf) *Error {
|
|
err := new(Error)
|
|
for t := r.byte(); t != 0; t = r.byte() {
|
|
msg := r.string()
|
|
switch t {
|
|
case 'S':
|
|
err.Severity = msg
|
|
case 'C':
|
|
err.Code = ErrorCode(msg)
|
|
case 'M':
|
|
err.Message = msg
|
|
case 'D':
|
|
err.Detail = msg
|
|
case 'H':
|
|
err.Hint = msg
|
|
case 'P':
|
|
err.Position = msg
|
|
case 'p':
|
|
err.InternalPosition = msg
|
|
case 'q':
|
|
err.InternalQuery = msg
|
|
case 'W':
|
|
err.Where = msg
|
|
case 's':
|
|
err.Schema = msg
|
|
case 't':
|
|
err.Table = msg
|
|
case 'c':
|
|
err.Column = msg
|
|
case 'd':
|
|
err.DataTypeName = msg
|
|
case 'n':
|
|
err.Constraint = msg
|
|
case 'F':
|
|
err.File = msg
|
|
case 'L':
|
|
err.Line = msg
|
|
case 'R':
|
|
err.Routine = msg
|
|
}
|
|
}
|
|
return err
|
|
}
|
|
|
|
// Fatal returns true if the Error Severity is fatal.
|
|
func (err *Error) Fatal() bool {
|
|
return err.Severity == Efatal
|
|
}
|
|
|
|
// Get implements the legacy PGError interface. New code should use the fields
|
|
// of the Error struct directly.
|
|
func (err *Error) Get(k byte) (v string) {
|
|
switch k {
|
|
case 'S':
|
|
return err.Severity
|
|
case 'C':
|
|
return string(err.Code)
|
|
case 'M':
|
|
return err.Message
|
|
case 'D':
|
|
return err.Detail
|
|
case 'H':
|
|
return err.Hint
|
|
case 'P':
|
|
return err.Position
|
|
case 'p':
|
|
return err.InternalPosition
|
|
case 'q':
|
|
return err.InternalQuery
|
|
case 'W':
|
|
return err.Where
|
|
case 's':
|
|
return err.Schema
|
|
case 't':
|
|
return err.Table
|
|
case 'c':
|
|
return err.Column
|
|
case 'd':
|
|
return err.DataTypeName
|
|
case 'n':
|
|
return err.Constraint
|
|
case 'F':
|
|
return err.File
|
|
case 'L':
|
|
return err.Line
|
|
case 'R':
|
|
return err.Routine
|
|
}
|
|
return ""
|
|
}
|
|
|
|
func (err Error) Error() string {
|
|
return "pq: " + err.Message
|
|
}
|
|
|
|
// PGError is an interface used by previous versions of pq. It is provided
|
|
// only to support legacy code. New code should use the Error type.
|
|
type PGError interface {
|
|
Error() string
|
|
Fatal() bool
|
|
Get(k byte) (v string)
|
|
}
|
|
|
|
func errorf(s string, args ...interface{}) {
|
|
panic(fmt.Errorf("pq: %s", fmt.Sprintf(s, args...)))
|
|
}
|
|
|
|
// TODO(ainar-g) Rename to errorf after removing panics.
|
|
func fmterrorf(s string, args ...interface{}) error {
|
|
return fmt.Errorf("pq: %s", fmt.Sprintf(s, args...))
|
|
}
|
|
|
|
func errRecoverNoErrBadConn(err *error) {
|
|
e := recover()
|
|
if e == nil {
|
|
// Do nothing
|
|
return
|
|
}
|
|
var ok bool
|
|
*err, ok = e.(error)
|
|
if !ok {
|
|
*err = fmt.Errorf("pq: unexpected error: %#v", e)
|
|
}
|
|
}
|
|
|
|
func (cn *conn) errRecover(err *error) {
|
|
e := recover()
|
|
switch v := e.(type) {
|
|
case nil:
|
|
// Do nothing
|
|
case runtime.Error:
|
|
cn.setBad()
|
|
panic(v)
|
|
case *Error:
|
|
if v.Fatal() {
|
|
*err = driver.ErrBadConn
|
|
} else {
|
|
*err = v
|
|
}
|
|
case *net.OpError:
|
|
cn.setBad()
|
|
*err = v
|
|
case *safeRetryError:
|
|
cn.setBad()
|
|
*err = driver.ErrBadConn
|
|
case error:
|
|
if v == io.EOF || v.Error() == "remote error: handshake failure" {
|
|
*err = driver.ErrBadConn
|
|
} else {
|
|
*err = v
|
|
}
|
|
|
|
default:
|
|
cn.setBad()
|
|
panic(fmt.Sprintf("unknown error: %#v", e))
|
|
}
|
|
|
|
// Any time we return ErrBadConn, we need to remember it since *Tx doesn't
|
|
// mark the connection bad in database/sql.
|
|
if *err == driver.ErrBadConn {
|
|
cn.setBad()
|
|
}
|
|
}
|