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-rw-r--r--command.c20
-rw-r--r--protocol.md3
2 files changed, 21 insertions, 2 deletions
diff --git a/command.c b/command.c
index ca70d76..39a50b7 100644
--- a/command.c
+++ b/command.c
@@ -98,6 +98,21 @@ static struct cmd_retval cmd_logout(struct conn_data *data,const char *tag,const
return RET_OK;
}
+static struct cmd_retval cmd_change_password(struct conn_data *data, const char *tag, const char **args) {
+ // TODO: use sodium_mlock correctly for the password
+
+ // Note: this function has exactly ONE return point, so that it is easier
+ // to see that we indeed return MEMZERO.
+
+ if (data->userid == -1) {
+ net_send_error(data->fd, tag, "Not logged in");
+ } else {
+ db_set_pass(data->userid, args[0]);
+ net_send_ok(data->fd, tag);
+ }
+ return RET_MEMZERO;
+}
+
static struct cmd_retval cmd_list_rooms(struct conn_data *data,const char *tag,const char **args){
(void)args;
if(data->userid==-1){
@@ -465,8 +480,8 @@ struct cmd_info{
// Use CommandHash.hs to re-generate this perfect hash function for a different
// list of commands.
-#define COMMAND_HASH_MODULUS 34
-#define COMMAND_HASH(cmd0, len) ((4 * cmd0 + 7 * len) % COMMAND_HASH_MODULUS)
+#define COMMAND_HASH_MODULUS 35
+#define COMMAND_HASH(cmd0, len) ((1 * cmd0 + 6 * len) % COMMAND_HASH_MODULUS)
#define COMMAND_ENTRY(cmd0, cmd, nargs, longlast, handler) \
[COMMAND_HASH(cmd0, strlen(cmd))] = {cmd, nargs, longlast, handler}
@@ -478,6 +493,7 @@ static const struct cmd_info commands[COMMAND_HASH_MODULUS] = {
COMMAND_ENTRY('r', "register", 2, true, cmd_register),
COMMAND_ENTRY('l', "login", 2, true, cmd_login),
COMMAND_ENTRY('l', "logout", 0, false, cmd_logout),
+ COMMAND_ENTRY('c', "change_password", 1, true, cmd_change_password),
COMMAND_ENTRY('l', "list_rooms", 0, false, cmd_list_rooms),
COMMAND_ENTRY('l', "list_members", 1, false, cmd_list_members),
COMMAND_ENTRY('c', "create_room", 0, false, cmd_create_room),
diff --git a/protocol.md b/protocol.md
index 1b31f47..f3db156 100644
--- a/protocol.md
+++ b/protocol.md
@@ -107,6 +107,9 @@ tomsg server.
- `<tag> login <user:word> <pass:string...>`
- Logs in as the specified user.
- Returns `ok` or `error`.
+- `<tag> change_password <pass:string...>`
+ - Changes the password of the current user to the given string.
+ - Returns `ok` or `error`.
- `<tag> logout`
- Logs out of the user the client is currently logged in as. If the client is
not logged in, does nothing.