Rewriter_show_create_user Class Reference

Rewrites the SHOW CREATE USER statement. More...

#include <sql_rewrite.h>

Inheritance diagram for Rewriter_show_create_user:

Public Member Functions
	Rewriter_show_create_user (THD *thd, Consumer_type type, const Rewrite_params *params)
bool	rewrite (String &rlb) const override
	Rewrite the query for the SHOW CREATE USER statement. More...
void	rewrite_user_application_user_metadata (const LEX *lex, String *str) const override
	Overrides implementation of the the rewriter for user application user metadata. More...
Public Member Functions inherited from I_rewriter
	I_rewriter (THD *thd, Consumer_type type)
virtual	~I_rewriter ()
	I_rewriter (const I_rewriter &)=delete
const I_rewriter &	operator= (const I_rewriter &)=delete
	I_rewriter (const I_rewriter &&)=delete
const I_rewriter &	operator= (const I_rewriter &&)=delete
void	set_consumer_type (Consumer_type type)
	Reset the previous consumer type. More...
Consumer_type	consumer_type ()
	Return the current consumer type set in the object. More...

Protected Member Functions
void	append_auth_str (LEX_USER *lex, String *str) const override
	A special rewriter override to make SHOW CREATE USER convert the string to hex if print_identified_with_as hex is on. More...
Protected Member Functions inherited from Rewriter_user
	Rewriter_user (THD *thd, Consumer_type target_type)
void	rewrite_users (LEX *lex, String *str) const
	Fetch the users from user_list in LEX struct and append them to the String. More...
void	append_literal_secret (String *str) const
	Append the literal <secret> in place of password to the output string. More...
void	append_plugin_name (const LEX_USER *user, String *str) const
	Append the authentication plugin name for the user. More...
void	append_mfa_plugin_name (const LEX_MFA *user, String *str) const
	Append the authentication plugin name from LEX_MFA for the user. More...
void	append_mfa_auth_str (const LEX_MFA *user, String *str) const
	Append the authentication string from LEX_MFA for the user. More...
void	rewrite_in_memory_user_application_user_metadata (const LEX *user, String *str) const
	Use the LEX for reconstructing the ATTRIBUTE or COMMENT clause. More...

Private Types
using	parent = Rewriter_user

Private Member Functions
void	append_user_auth_info (LEX_USER *user, bool comma, String *str) const override
	Append the authID, plugin name and suth str user to output string. More...
void	rewrite_password_history (const LEX *lex, String *str) const override
	Append the PASSWORD HISTORY clause for users. More...
void	rewrite_password_reuse (const LEX *lex, String *str) const override
	Append the PASSWORD REUSE clause for users. More...

Private Attributes
const Show_user_params *	show_params_

Additional Inherited Members
Protected Attributes inherited from I_rewriter
THD *const	m_thd
Consumer_type	m_consumer_type

Detailed Description

Rewrites the SHOW CREATE USER statement.

Member Typedef Documentation

parent

using Rewriter_show_create_user::parent = Rewriter_user

private

Constructor & Destructor Documentation

Rewriter_show_create_user()

Rewriter_show_create_user::Rewriter_show_create_user	(	THD *	thd,
		Consumer_type	type,
		const Rewrite_params *	params
	)

Member Function Documentation

append_auth_str()

void Rewriter_show_create_user::append_auth_str ( LEX_USER *  user, String *  str  ) const

overrideprotectedvirtual

A special rewriter override to make SHOW CREATE USER convert the string to hex if print_identified_with_as hex is on.

Parameters

[in]	user	LEX_USER to fetch the auth string of it.
[in,out]	str	The string in which hash value is suffixed

See also

Rewriter_user::append_auth_str

Reimplemented from Rewriter_user.

append_user_auth_info()

void Rewriter_show_create_user::append_user_auth_info ( LEX_USER *  user, bool  comma, String *  str  ) const

overrideprivatevirtual

Append the authID, plugin name and suth str user to output string.

Parameters

[in]	user	Lex user to fetch the info
[in]	comma	separator to be prefixed while appending user info
[in,out]	str	String to which user auth info is suffixed.

Implements Rewriter_user.

rewrite()

bool Rewriter_show_create_user::rewrite ( String &  rlb ) const

overridevirtual

Rewrite the query for the SHOW CREATE USER statement.

This method takes an additional parameter from the Show_user_params to reconstruct the ATTRIBUTE clause. These parameters must be read form disk which is done in mysql_show_create_user()

See also

mysql_show_create_user()

Parameters

[in,out]

rlb

Buffer to return the rewritten query in.

Return values

true	The query was rewritten.

Reimplemented from Rewriter_user.

rewrite_password_history()

void Rewriter_show_create_user::rewrite_password_history ( const LEX *  lex, String *  str  ) const

overrideprivatevirtual

Append the PASSWORD HISTORY clause for users.

Parameters

[in]	lex	LEX struct to check if clause is specified
[in,out]	str	The string in which clause is suffixed

Implements Rewriter_user.

rewrite_password_reuse()

void Rewriter_show_create_user::rewrite_password_reuse ( const LEX *  lex, String *  str  ) const

overrideprivatevirtual

Append the PASSWORD REUSE clause for users.

Parameters

[in]	lex	LEX struct to check if clause is specified
[in,out]	str	The string in which clause is suffixed

Implements Rewriter_user.

rewrite_user_application_user_metadata()

void Rewriter_show_create_user::rewrite_user_application_user_metadata ( const LEX *  lex, String *  str  ) const

overridevirtual

Overrides implementation of the the rewriter for user application user metadata.

This is needed because we have to read the ATTRIBUTE data from disk.

Parameters

[in]	lex	LEX struct to know if the clause was specified
[in,out]	str	The string in which the clause is suffixed

Implements Rewriter_user.

Member Data Documentation

show_params_

const Show_user_params* Rewriter_show_create_user::show_params_

private

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The documentation for this class was generated from the following files:

• sql/sql_rewrite.h
• sql/sql_rewrite.cc