Class: DbmsConnectionController

Inherits:
ApplicationController
  • Object
show all
Includes:
DbmsPluginHelper
Defined in:
app/controllers/dbms_connection_controller.rb

Constant Summary collapse

APP_CONFIG =

Load configuration items (MANDATORY, must be included)

HashWithIndifferentAccess.new(YAML.load(File.read(File.expand_path('../../../config/dbms/dbms_config.yml', __FILE__))))

Instance Method Summary collapse

Methods included from DbmsPluginHelper

#current_user, #get_current_user_role

Instance Method Details

#addStoredQuery ⇒ Object 



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# File 'app/controllers/dbms_connection_controller.rb', line 186

def addStoredQuery
  SymmetricEncryption.load!

  begin

    # Check access
    if (@curUserRole == 'contentadmin' ||
        @curUserRole == 'user' ||
        @curUserRole == 'loggedin' ||
        @curUserRole == 'anonymous')
      raise 'unauthorized access'
    end

    # if (Metadata.all(:conditions => ["key = ?", params[:key]]).length > 0)
    #  raise "key is duplicated"
    # end

    if (!Metadata.first({ :conditions => ['key = ?', params[:key]]}).nil?)
      raise "key is duplicated"
    end

    # Check for value duplications
    storedQueryValues = Metadata.all(:conditions => ["cat = ? and sites_id = ?", APP_CONFIG[:DBMS_CAT_STORED_QUERY], session[:accessible_appid]])
    storedQueryValues.each do |t|
      valueJsonObject = ActiveSupport::JSON.decode(SymmetricEncryption.decrypt(t.value))

      if valueJsonObject['sql'] == params[:value]
        raise "value is duplicated"
      end
    end

    # If all is fine, create the stored query
    Metadata.create({
                        :key => params[:key],
                        :value => SymmetricEncryption.encrypt({ :sql => params[:value], :enabled => false, :language => 'none' }.to_json),
                        :cat => APP_CONFIG[:DBMS_CAT_STORED_QUERY],
                        :mime => "text/sql",
                        :sites_id => session[:accessible_appid]
                    })

    render :json => {:status => "success"}
  rescue Exception => ex
    render :json => {:status => "failure", :message => ex.message}
  end
end

#deleteStoredQuery ⇒ Object 



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# File 'app/controllers/dbms_connection_controller.rb', line 273

def deleteStoredQuery
  begin

    # Check access
    if (@curUserRole == 'contentadmin' ||
        @curUserRole == 'user' ||
        @curUserRole == 'loggedin' ||
        @curUserRole == 'anonymous')
      raise 'unauthorized access'
    end

    Metadata.find_by_id(params[:id]).destroy

    render :json => {:status => "success"}
  rescue Exception => ex
    render :json => {:status => "failure", :message => ex.message}
  end
end

#executeSQL ⇒ Object 



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# File 'app/controllers/dbms_connection_controller.rb', line 91

def executeSQL
  begin

    # Check access
    if (@curUserRole == 'contentadmin' ||
        @curUserRole == 'user' ||
        @curUserRole == 'loggedin' ||
        @curUserRole == 'anonymous')
      raise 'unauthorized access'
    end

    if (ActiveRecord::Base.connection != Database.connection)

      resultSet = []
      begin
        Database.connection.execute("BEGIN")
        resultSet = Database.connection.select_all(params[:sql])
        # Must put ROLLBACK here because Postgres adapter doesn't throw any exception when update or delete commands are executed
        Database.connection.execute("ROLLBACK")

        # Parse columns
        columns = Array.new
        if resultSet.length > 0
          # Take this first one
          firstResult = resultSet.first
          columns = firstResult.keys
        end

        render :json => {:status => "success", :data => {:columns => columns, :result => resultSet}}
      rescue NoMethodError
        Database.connection.execute("ROLLBACK")
        render :json => {:status => "success", :data => {:columns => [], :result => []}}
      rescue ActiveRecord::StatementInvalid => dberr
        render :json => { :status => "failure", :data => {:columns => [], :result => []}, :message => dberr.message }
      end

    else
      render :json => {:status => "failure", :data => {:columns => [], :result => []}, :message => "connect not established"}
    end
  rescue Exception => ex
    render :json => {:status => "failure", :data => {:columns => [], :result => []}, :message => "command executed, no result set returned"}
  end
end

#getConnectionStatus ⇒ Object 



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# File 'app/controllers/dbms_connection_controller.rb', line 42

def getConnectionStatus
  begin

    # Check access
    if (@curUserRole == 'contentadmin' ||
        @curUserRole == 'user' ||
        @curUserRole == 'loggedin' ||
        @curUserRole == 'anonymous')
      raise 'unauthorized access'
    end

    if (ActiveRecord::Base.connection != Database.connection)
      status = Database.connection.active?

      if (status)
        render :json => {:status => "success", :data => Database.connection.current_database}
      else
        render :json => {:status => "failure", :message => "database unavailable"}
      end
    else
      render :json => {:status => "failure", :message => "connection unavailable"}
    end
  rescue Exception => ex
    render :json => {:status => "failure", :message => ex.message}
  end
end

#getListOfStoredQueries ⇒ Object 



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# File 'app/controllers/dbms_connection_controller.rb', line 135

def getListOfStoredQueries
  begin

    # Check access
    if (@curUserRole == 'contentadmin' ||
        @curUserRole == 'user' ||
        @curUserRole == 'loggedin' ||
        @curUserRole == 'anonymous')
      raise 'unauthorized access'
    end

    storedQueries = Metadata.all({ :conditions => ['cat = ? and sites_id = ?', APP_CONFIG[:DBMS_CAT_STORED_QUERY], session[:accessible_appid]] })

    tArray = Array.new
    storedQueries.each do |t|
      tHash = Hash.new

      tHash[:id] = t.id
      tHash[:key] = t.key
      tHash[:value] = SymmetricEncryption.decrypt(t.value)

      tArray << tHash
    end

    render :json => {:status => "success", :data => tArray}
  rescue Exception => ex
    render :json => {:status => "failure", :message => ex.message}
  end
end

#getListOfTables ⇒ Object 



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# File 'app/controllers/dbms_connection_controller.rb', line 69

def getListOfTables
  begin

    # Check access
    if (@curUserRole == 'contentadmin' ||
        @curUserRole == 'user' ||
        @curUserRole == 'loggedin' ||
        @curUserRole == 'anonymous')
      raise 'unauthorized access'
    end

    if (ActiveRecord::Base.connection != Database.connection)
      tables = Database.connection.tables
      render :json => {:status => "success", :data => tables}
    else
      render :json => {:status => "success", :message => []}
    end
  rescue Exception => ex
    render :json => {:status => "failure", :message => ex.message}
  end
end

#getOneStoredQueryInfos ⇒ Object 



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# File 'app/controllers/dbms_connection_controller.rb', line 165

def getOneStoredQueryInfos
  SymmetricEncryption.load!

  begin

    # Check access
    if (@curUserRole == 'contentadmin' ||
        @curUserRole == 'user' ||
        @curUserRole == 'loggedin' ||
        @curUserRole == 'anonymous')
      raise 'unauthorized access'
    end

    storedQuery = Metadata.first({ :conditions => [ 'id = ? and cat = ? and sites_id = ?', params[:id], params[:cat], session[:accessible_appid] ]})

    render :json => {:status => "success", :data => {:id => storedQuery.id ,:key => storedQuery.key, :value => SymmetricEncryption.decrypt(storedQuery.value)}}
  rescue Exception => ex
    render :json => {:status => "failure", :message => ex.message}
  end
end

#makeNewConnection ⇒ Object

Controller Actions



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# File 'app/controllers/dbms_connection_controller.rb', line 11

def makeNewConnection
  SymmetricEncryption.load!

  begin

    # Check access
    if (@curUserRole == 'contentadmin' ||
        @curUserRole == 'user' ||
        @curUserRole == 'loggedin' ||
        @curUserRole == 'anonymous')
      raise 'unauthorized access'
    end

    connectionResult = false

    if (params[:type] == "sqlite")
      connectionResult = Database.connect_sqlite(params[:database])
    else
      connectionResult = Database.connect_sql(params[:type], params[:host], params[:port], params[:user], SymmetricEncryption.encrypt(params[:password]), params[:database])
    end

    if (connectionResult)
      render :json => {:status => "success"}
    else
      render :json => {:status => "failure"}
    end
  rescue Exception => ex
    render :json => {:status => "failure", :message => ex.message}
  end
end

#updateStoredQuery ⇒ Object 



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# File 'app/controllers/dbms_connection_controller.rb', line 232

def updateStoredQuery
  SymmetricEncryption.load!

  begin

    # Check access
    if (@curUserRole == 'contentadmin' ||
        @curUserRole == 'user' ||
        @curUserRole == 'loggedin' ||
        @curUserRole == 'anonymous')
      raise 'unauthorized access'
    end

    # select that id first
    updateObj = Metadata.find(params[:id])

    if (!updateObj.nil?)
      updateObjData = ActiveSupport::JSON.decode(SymmetricEncryption.decrypt(updateObj.value))
      if (!params[:value].nil? && params[:enabled].nil? && params[:language].nil?)
        Metadata.update(params[:id], {
            :value => SymmetricEncryption.encrypt({ :sql => params[:value], :enabled => updateObjData['enabled'], :language => updateObjData['language'] }.to_json)
        });
      elsif (params[:value].nil? && !params[:enabled].nil? && params[:language].nil?)
        Metadata.update(params[:id], {
            :value => SymmetricEncryption.encrypt({ :sql => updateObjData['sql'] , :enabled => params[:enabled] == "true" ? true : false, :language => updateObjData['language'] }.to_json)
        });
      elsif (params[:value].nil? && params[:enabled].nil? && !params[:language].nil?)
        Metadata.update(params[:id], {
            :value => SymmetricEncryption.encrypt({ :sql => updateObjData['sql'] , :enabled => updateObjData['enabled'], :language => params[:language] }.to_json)
        });
      else
        # Unimplemented
      end
    end

    render :json => {:status => "success"}
  rescue Exception => ex
    render :json => {:status => "failure", :message => ex.message}
  end
end