Make vital keys inmutable + changed API documentation

README.md

@@ -145,11 +145,41 @@ curl 127.0.0.1:8080/<username>/update`
 curl '127.0.0.1:8080/*/update'`
 ```
 
+**Configure parameters** of the Pixelfed account (on local mirror file-based DB)
+
+```bash
+# Get the value of a parameter (except: password, cookie)
+curl 127.0.0.1:8080/<username>/cfg/var1
+
+# Set the value of a parameter
+#  this keys are inmutable: name, username, password, cookie
+curl 127.0.0.1:8080/<username>/cfg/var1?valueyouwant
+
+
+# CONFIGURABLE PARAMETERS:
+
+# ------------------
+# "sched" key sets a weight schedule so you can make an account update less often.
+#
+#  For example: if you set the value to "3", only 1 times out of 3 (counted) will actually update the account
+#  "sched_now" is an automatic variable that counts the current status (used when "sched" is set).
+#
+#  This will skip the account on wildcard or single /update action, until the count hits it's max value ("sched")
+#  As in the example above (sched = 3), you would set this value like this:
+
+curl 127.0.0.1:8080/<username>/cfg/sched?3
+# ------------------
+
+
+```
+
 **Log in or log out** the account from Pixelfed.
 
 ```bash
 curl 127.0.0.1:8080/<username>/login
+curl '127.0.0.1:8080/*/login'
 curl 127.0.0.1:8080/<username>/logout
+curl '127.0.0.1:8080/*/logout'
 ```
 In case of repeated posts or disaster, **prune/nuke all Pixelfed posts** from the given account.
 

igmirror.py

@@ -604,6 +604,10 @@ def account_config(acc_id, key, value):
             return False, 'Key does not exist yet: {}'.format(key)
         return True, accdata[key]
 
+    # protect inmutable keys
+    if key in ['name', 'username', 'password', 'cookie']:
+        return False, 'The given key is inmutable: {}'.format(key)
+
     # value has something, so we set it
     accdata[key] = value
     db_set('accounts', acc_id, accdata)