Parser::AlterUserStmt Class Reference

#include <ParserNode.h>

Inheritance diagram for Parser::AlterUserStmt:

Collaboration diagram for Parser::AlterUserStmt:

Public Member Functions
	AlterUserStmt (const rapidjson::Value &payload)
	AlterUserStmt (std::string *n, std::list< NameValueAssign * > *l)
void	execute (const Catalog_Namespace::SessionInfo &session, bool read_only_mode) override
Public Member Functions inherited from Parser::DDLStmt
void	setColumnDescriptor (ColumnDescriptor &cd, const ColumnDef *coldef)
Public Member Functions inherited from Parser::Node
virtual	~Node ()

Private Attributes
std::unique_ptr< std::string >	user_name_
std::list< std::unique_ptr < NameValueAssign > >	options_

Detailed Description

Definition at line 2034 of file ParserNode.h.

Constructor & Destructor Documentation

Parser::AlterUserStmt::AlterUserStmt

(

const rapidjson::Value &

payload

)

Definition at line 6996 of file ParserNode.cpp.

References CHECK, json_str(), options_, Parser::anonymous_namespace{ParserNode.cpp}::parse_options(), and user_name_.

                                                          {
  CHECK(payload.HasMember("name"));
  user_name_ = std::make_unique<std::string>(json_str(payload["name"]));

  parse_options(payload, options_, true, false);
}

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Parser::AlterUserStmt::AlterUserStmt ( std::string *  n, std::list< NameValueAssign * > *  l  )

inline

Definition at line 2037 of file ParserNode.h.

References options_.

                                                            : user_name_(n) {
    if (l) {
      for (const auto e : *l) {
        options_.emplace_back(e);
      }
      delete l;
    }
  }

Member Function Documentation

void Parser::AlterUserStmt::execute ( const Catalog_Namespace::SessionInfo &  session, bool  read_only_mode  )

overridevirtual

Implements Parser::DDLStmt.

Definition at line 7003 of file ParserNode.cpp.

References Catalog_Namespace::UserAlterations::can_login, Parser::checkStringLiteral(), Catalog_Namespace::UserAlterations::default_db, Catalog_Namespace::SessionInfo::get_currentUser(), lockmgr::instance(), Catalog_Namespace::UserAlterations::is_super, Catalog_Namespace::UserMetadata::isSuper, options_, Catalog_Namespace::UserAlterations::passwd, Parser::readBooleanLiteral(), user_name_, and Catalog_Namespace::UserMetadata::userId.

Referenced by heavydb.cursor.Cursor::executemany().

                                                 {
  if (read_only_mode) {
    throw std::runtime_error("ALTER USER invalid in read only mode.");
  }
  // Parse the statement
  Catalog_Namespace::UserAlterations alts;
  for (auto& p : options_) {
    if (boost::iequals(*p->get_name(), "password")) {
      checkStringLiteral("Password", p);
      alts.passwd = *static_cast<const StringLiteral*>(p->get_value())->get_stringval();
    } else if (boost::iequals(*p->get_name(), "is_super")) {
      checkStringLiteral("IS_SUPER", p);
      alts.is_super = readBooleanLiteral("IS_SUPER", p);
    } else if (boost::iequals(*p->get_name(), "default_db")) {
      if (dynamic_cast<const StringLiteral*>(p->get_value())) {
        alts.default_db =
            *static_cast<const StringLiteral*>(p->get_value())->get_stringval();
      } else if (dynamic_cast<const NullLiteral*>(p->get_value())) {
        alts.default_db = "";
      } else {
        throw std::runtime_error(
            "DEFAULT_DB option must be either a string literal or a NULL "
            "literal.");
      }
    } else if (boost::iequals(*p->get_name(), "can_login")) {
      alts.can_login = readBooleanLiteral("CAN_LOGIN", p);
    } else {
      throw std::runtime_error("Invalid ALTER USER option " + *p->get_name() +
                               ". Should be PASSWORD, DEFAULT_DB, CAN_LOGIN"
                               " or IS_SUPER.");
    }
  }

  // Check if the user is authorized to execute ALTER USER statement
  Catalog_Namespace::UserMetadata user;
  if (!SysCatalog::instance().getMetadataForUser(*user_name_, user)) {
    throw std::runtime_error("User " + *user_name_ + " does not exist.");
  }
  if (!session.get_currentUser().isSuper) {
    if (session.get_currentUser().userId != user.userId) {
      throw std::runtime_error("Only super user can change another user's attributes.");
    } else if (alts.is_super || alts.can_login) {
      throw std::runtime_error(
          "A user can only update their own password or default database.");
    }
  }

  SysCatalog::instance().alterUser(*user_name_, alts);
}

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Member Data Documentation

std::list<std::unique_ptr<NameValueAssign> > Parser::AlterUserStmt::options_

private

Definition at line 2050 of file ParserNode.h.

Referenced by AlterUserStmt(), and execute().

std::unique_ptr<std::string> Parser::AlterUserStmt::user_name_

private

Definition at line 2049 of file ParserNode.h.

Referenced by AlterUserStmt(), and execute().

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

• /home/jenkins-slave/workspace/core-os-doxygen/Parser/ParserNode.h
• /home/jenkins-slave/workspace/core-os-doxygen/Parser/ParserNode.cpp