ADMINCOMMAND: Add user rename command

Add a rename command for users.

1 files changed, 50 insertions, 7 deletions

diff --git a/lib/gitano/admincommand.lua b/lib/gitano/admincommand.lua
index 7d62b4b..0b7075a 100644
--- a/lib/gitano/admincommand.lua
+++ b/lib/gitano/admincommand.lua
@@ -103,6 +103,7 @@ usage: user [list]
        user del <username> [confirm token]
        user email <username> <email>
        user name <username> <real name>
+       user rename <username> <newusername> [confirm token]
 
 With no subcommand, or the subcommand 'list' the user command will
 show a list of all the users, along with their email addresses and
@@ -113,11 +114,12 @@ With the 'del' subcommand, you can delete a user from the system.
 With the 'email' subcommand, you can change a user's email address.
 With the 'name' subcommand, you can change a user's real name.
 
-If you try and delete a user, you will need to paste a confirmation
-token which will be supplied if you try and delete the user without
-it.  That token is reliant on the state of the admin repository.  Any
-admin operations performed between the two delete attempts will
-invalidate the token and you will have to retry.
+If you try and delete or rename a user, you will need to paste a
+confirmation token which will be supplied if you try and delete or
+rename the user without it.  That token is reliant on the state of
+the admin repository.  Any admin operations performed between the
+two delete or rename attempts will invalidate the token and you will
+have to retry.
 ]]
 
 local function builtin_user_validate(conf, _, cmdline)
@@ -127,9 +129,10 @@ local function builtin_user_validate(conf, _, cmdline)
    if cmdline[2] ~= "list" and
       cmdline[2] ~= "add" and
       cmdline[2] ~= "del" and
+      cmdline[2] ~= "rename" and
       cmdline[2] ~= "email" and
       cmdline[2] ~= "name" then
-      log.error("user takes one of list, add, del, email or name")
+      log.error("user takes one of list, add, del, rename, email or name")
       return false
    end
    if cmdline[2] == "list" and #cmdline ~= 2 then
@@ -155,6 +158,10 @@ local function builtin_user_validate(conf, _, cmdline)
       log.error("user name takes a username and a real name")
       return false
    end
+   if cmdline[2] == "rename" and (#cmdline < 4 or #cmdline > 5) then
+      log.error("user rename takes a username, a new username [and a token]")
+      return false
+   end
    return true
 end
 
@@ -229,7 +236,7 @@ local function builtin_user_run(conf, _, cmdline, env)
       if not utab then
 	 log.fatal("Could not find user:", username)
       end
-      local token = conf.repo:generate_confirmation()
+      local token = conf.repo:generate_confirmation("delete " .. username)
       if not cmdline[4] then
 	 log.state("In order to delete", username, "you must supply the following token:")
 	 log.state(token)
@@ -250,6 +257,42 @@ local function builtin_user_run(conf, _, cmdline, env)
 	 -- And explain what
 	 reason = "Delete user " .. username
       end
+   elseif cmdline[2] == "rename" then
+      local oldusername = cmdline[3]
+      local newusername = cmdline[4]
+      local utab = conf.users[oldusername]
+      if not utab then
+	 log.fatal("Could not find user:", oldusername)
+      end
+      if conf.users[newusername] then
+	 log.fatal("New username already exists:", newusername)
+      end
+      local token = conf.repo:generate_confirmation("rename " .. oldusername ..
+						    " to " .. newusername)
+      if not cmdline[5] then
+	 log.state("In order to rename", oldusername, "you must supply the following token:")
+	 log.state(token)
+      elseif cmdline[5] ~= token then
+	 log.error("Tokens do not match.  Did someone else do administrative actions?")
+      else
+	 -- Iterate groups and rename the user in any group it is
+	 -- a direct member of
+	 for g, gtab in pairs(conf.groups) do
+	    if gtab.members[oldusername] then
+	       gtab.members[gtab.members[oldusername]] = newusername
+	       gtab.members[newusername] = gtab.members[oldusername]
+	       gtab.members[oldusername] = nil
+	       gtab.changed_tables()
+	       log.state("Renamed:", oldusername, "to", newusername,
+			 "in membership of group:", g)
+	    end
+	 end
+	 -- Now rename the user itself
+	 conf.users[newusername] = utab
+	 conf.users[oldusername] = nil
+	 -- And explain what
+	 reason = "Rename user " .. oldusername .. " to " .. newusername
+      end
    end
    if reason then
       -- Need to try and make a config commit