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      User

      A user is a combination of multiple privileges and policies, it has similar composition with a policy.

      Naming Conventions

      Username cannot be shared between users in an Ultipa instance.

      • 2 ~ 64 characters
      • Must start with letters
      • Allow to use letters, underscore and numbers ( _ , A-Z, a-z, 0-9)
      • Length of password is 6~64 and no constraint on characters used

      Show User

      Returned table name: _user
      Returned table header: username | create | graphPrivileges | systemPrivileges | propertyPrivileges | policies (username, creation time, graph privileges, system privileges, property privileges, sub policies)

      Syntax:

      // To show all users in the current Ultipa instance
      show().user()
      
      // To show a certain user in the current Ultipa instance
      show().user("<name>")
      
      // To show the current logged-on user
      show().self()
      

      Create User

      Syntax:

      // To create a user in the current Ultipa instance
      create().user(
        "<username>", 
        "<password>", 
        <{}graph_privileges?>, 
        <[]system_privileges?>, 
        <[]policies?>, 
        <{}property_privileges?>
      )
      

      Where the data structures are:

      // <{}graph_privileges>
      {
        "<graph1>":["<graph_privilege>", "<graph_privilege>", ...],
        "<graph2>":["<graph_privilege>", "<graph_privilege>", ...],
        ...
      }
      
      // <{}property_privileges>
      {
        "node": {
          "read": [
            ["<graph>", "<@schema?>", "<property?>"],
            ["<graph>", "<@schema?>", "<property?>"],
            ...
          ],
          "write": [
            ["<graph>", "<@schema?>", "<property?>"],
            ["<graph>", "<@schema?>", "<property?>"],
            ...
          ],
          "deny": [
            ["<graph>", "<@schema?>", "<property?>"],
            ["<graph>", "<@schema?>", "<property?>"],
            ...
          ],
        },
        "edge": {
          "read": [
            ["<graph>", "<@schema?>", "<property?>"],
            ["<graph>", "<@schema?>", "<property?>"],
            ...
          ],
          "write": [
            ["<graph>", "<@schema?>", "<property?>"],
            ["<graph>", "<@schema?>", "<property?>"],
            ...
          ],
          "deny": [
            ["<graph>", "<@schema?>", "<property?>"],
            ["<graph>", "<@schema?>", "<property?>"],
            ...
          ],
        }
      }
      

      Note 1: When using asterisk * to replace the GraphSet name <graphSet>, the "*" means all GraphSets in the current Ultipa instance. Similarly, the "*" in replace of "<@schema>" or "<property>" represents all the schemas or all properties.
      Note 2: When top tiems of parameter user() are not to be declared, their slots still need to be held by empty braces if the items that come later are to be declared.

      Example: Create user "Ultipa" with password "ultipaABC123", grant graph privileges UPDATE, ALGO, LTE and UFE for all GraphSets, system privileges STAT, TOP and KILL, and property privilege WRITE to all properties of all GraphSets

      create().user(
        "Ultipa",   
        "ultipaABC123",
        {"*": ["UPDATE","ALGO","LTE","UFE"]},  
        ["STAT","TOP","KILL"], 
        [],
        {
          "node": {
            "write": [["*","*","*"]]
          },
          "edge": {
            "write": [["*","*","*"]]
          }
        }
      )
      

      Alter User

      Syntax:

      // To modify the a certain user in the current Ultipa instance
      alter().user("<username>").set({
        password:"<new?>", 
        graph_privileges: <{}graph_privileges?>, 
        system_privileges: <[]system_privileges?>, 
        policies: <[]policies?>,
        property_privileges: <{}property_privileges?>
      })
      

      Where the data structures <{}graph_privileges> and <{}property_privileges> are same as those in command create().user().

      Example:Modify user Ultipa's password to "ultipaFast"

      alter().user("Ultipa")
        .set({password: "ultipaFast"})
      

      Example:Modify user Ultipa, make it only able to acquire metadata of GraphSet "default"

      alter().user("Ultipa").set({
        graph_privileges: {"default": ["FIND"]},
        property_privileges: {
          "node": {
            "read": [["default","*","*"]]
          },
          "edge": {
            "read": [["default","*","*"]]
          }
        }
      })
      

      Analysis: Users can query and return metadata of 'default' only when both FIND and READ are granted for 'default' and its metadata.

      Drop User

      Syntax:

      // To delete a certain user from the current Ultipa instance
      drop().user("<name>")
      

      Reset Admin User

      Resetting admin user needs to be done on Ultipa Server with ultipa-reset-user tool, which is not in the scope of UQL operation.

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