Tasmota/tools/decode-config.md

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# decode-config.py
_decode-config.py_ backup and restore Sonoff-Tasmota configuration.
Comparing backup files created by *decode-config.py* and *.dmp files created by Tasmota "Backup/Restore Configuration":
| &nbsp; | decode-config.py<br />*.json file | Sonoff-Tasmota<br />*.dmp file |
|-------------------------|:-------------------------------:|:-----------------------------------:|
| Encrypted | No | Yes |
| Readable | Yes | No |
| Simply editable | Yes | No |
| Simply batch processing | Yes | No |
_decode-config.py_ handles Tasmota configurations for release version since 5.10.0 up to now.
# Content
* [Prerequisite](decode-config.md#prerequisite)
* [File Types](decode-config.md#file-types)
* [.dmp File Format](decode-config.md#-dmp-file-format)
* [.json File Format](decode-config.md#-json-file-format)
* [.bin File Format](decode-config.md#-bin-file-format)
* [File extensions](decode-config.md#file-extensions)
* [Usage](decode-config.md#usage)
* [Basics](decode-config.md#basics)
* [Save backup file](decode-config.md#save-backup-file)
* [Restore backup file](decode-config.md#restore-backup-file)
* [Configuration file](decode-config.md#configuration-file)
* [More program arguments](decode-config.md#more-program-arguments)
* [Examples](decode-config.md#examples)
* [Config file](decode-config.md#config-file)
* [Using Tasmota binary configuration files](decode-config.md#using-tasmota-binary-configuration-files)
* [Use batch processing](decode-config.md#use-batch-processing)
## Prerequisite
* [Python](https://en.wikipedia.org/wiki/Python_(programming_language))
This program is written in [Python](https://en.wikipedia.org/wiki/Python_(programming_language)) so you need to install a python environment (for details see [Python Setup and Usage](https://docs.python.org/2.7/using/index.html))
* [Sonoff-Tasmota](https://github.com/arendst/Sonoff-Tasmota) [Firmware](https://github.com/arendst/Sonoff-Tasmota/releases) with enabled Web-Server
To backup or restore configurations from/to a Sonoff-Tasmota device you need a firmare with enabled web-server in admin mode (command [WebServer 2](https://github.com/arendst/Sonoff-Tasmota/wiki/Commands#wifi)).
<br />Only self compiled firmware may do not have a web-server sod if you use your own compiled firmware be aware to enable the web-server, otherwise you can only use the `--file` parameter as source.
## File Types
_decode-config.py_ can handle the following backup file types:
### .dmp Format
Configuration data as used by Tasmota "Backup/Restore Configuration" web interface.
This format is binary and encrypted.
### .json Format
Configuration data in [JSON](http://www.json.org/)-format.
This format is decrypted, human readable and editable and can also be used for the `--restore-file` command.
This file will becreated by _decode-config.py_ using `--backup-file` with `--backup-type json` parameter (default).
### .bin Format
Configuration data in binary format.
This format is binary decryptet, editable (e.g. using a hex editor) and can also be used for `--restore-file` command.
It will be created by _decode-config.py_ using `--backup-file` with `--backup-type bin`.
Note:
This file is 4 byte longer than an original .dmp file due to an prefix header at the beginning. The file data starting at address position 4 are containing the same as the **struct SYSCFG** from Tasmota [settings.h](https://github.com/arendst/Sonoff-Tasmota/blob/master/sonoff/settings.h) in decrypted format.
#### File extensions
_decode-config.py_ uses auto extension as default for backup filenames; you don't need to append extensions to your backup file, it will be selected based on `--backup-type` argument.
If you want using your own extension use the `--no-extension` argument.
## Usage
After download don't forget to set exec flag under linux with `chmod +x decode-config.py` or call the program using `python decode-config.py...`.
### Basics
At least pass a source where you want to read the configuration data from using `-f <filename>` or `-d <host>`:
The source can be either
* a Tasmota device hostname or IP by passing it using the `-d <host>` arg
* or a previously stored Tasmota *.dmp` configuration file by passing the filename using `-f <filename>` arg
Example:
decode-config.py -d sonoff-4281
will output a human readable configuration in [JSON](http://www.json.org/)-format:
{
"altitude": 112,
"baudrate": 115200,
"blinkcount": 10,
"blinktime": 10,
...
"ws_width": [
1,
3,
5
]
}
### Save backup file
To save the output as backup file `--backup-file <filename>`, you can use placeholder for Version, Friendlyname and Hostname:
decode-config.py -d sonoff-4281 --backup-file Config_@f_@v
If you have setup a WebPassword within Tasmota, use
decode-config.py -d sonoff-4281 -p <yourpassword> --backup-file Config_@f_@v
will create a file like `Config_Sonoff_x.x.x.json`. Because it is in JSON format, you can read and edit the file with any raw text editor.
### Restore backup file
Reading back a saved (and possible changed) backup file use the `--restore-file <filename>` arg. This will read the (changed) configuration data from this file and send it back to the source device or filename.
To restore the previously save backup file `Config_Sonoff_6.2.1.json` to device `sonoff-4281` use:
decode-config.py -d sonoff-4281 --restore-file Config_Sonoff_6.2.1.json
with password set by WebPassword:
decode-config.py -d sonoff-4281 -p <yourpassword> --restore-file Config_Sonoff_6.2.1.json
### Configuration file
Each argument that start with `--` (eg. `--file`) can also be set in a config file (specified via -c). Config file syntax allows: key=value, flag=true, stuff=[a,b,c] (for details, see syntax at [https://pypi.org/project/ConfigArgParse](https://pypi.org/project/ConfigArgParse/)).
If an argument is specified in more than one place, then commandline values override config file values which override defaults. This is usefull if you always use the same argument or a basic set of arguments.
The http authentication credentials `--username` and `--password` is predestinated to store it in a file instead using it on your command line as argument:
e.g. my.conf:
[source]
username = admin
password = myPaszxwo!z
To make a backup file from example above you can now pass the config file instead using the password on command line:
decode-config.py -d sonoff-4281 -c my.conf --backup-file Config_@f_@v
### More program arguments
For better reading your porgram arguments each short written arg (minus sign `-`) has a corresponding readable long version (two minus signs `--`), eg. `--device` for `-d` or `--file` for `-f` (note: not even all `--` arg has a corresponding `-` one).
A short list of possible program args is displayed using `-h` or `--help`.
For advanced help use `-H` or `--full-help`:
usage: decode-config.py [-f <filename>] [-d <host>] [-P <port>]
[-u <username>] [-p <password>] [-i <filename>]
[-o <filename>] [-F json|bin|dmp] [-E] [-e]
[--json-indent <indent>] [--json-compact]
[--json-hide-pw] [--json-unhide-pw] [-h] [-H] [-v]
[-V] [-c <filename>] [--ignore-warnings]
Backup/Restore Sonoff-Tasmota configuration data. Args that start with '--'
(eg. -f) can also be set in a config file (specified via -c). Config file
syntax allows: key=value, flag=true, stuff=[a,b,c] (for details, see syntax at
https://goo.gl/R74nmi). If an arg is specified in more than one place, then
commandline values override config file values which override defaults.
optional arguments:
-c, --config <filename>
program config file - can be used to set default
command args (default: None)
--ignore-warnings do not exit on warnings. Not recommended, used by your
own responsibility!
Source:
Read/Write Tasmota configuration from/to
-f, --file, --tasmota-file <filename>
file to retrieve/write Tasmota configuration from/to
(default: None)'
-d, --device, --host <host>
hostname or IP address to retrieve/send Tasmota
configuration from/to (default: None)
-P, --port <port> TCP/IP port number to use for the host connection
(default: 80)
-u, --username <username>
host HTTP access username (default: admin)
-p, --password <password>
host HTTP access password (default: None)
Backup/Restore:
Backup/Restore configuration file specification
-i, --restore-file <filename>
file to restore configuration from (default: None).
Replacements: @v=firmware version, @f=device friendly
name, @h=device hostname
-o, --backup-file <filename>
file to backup configuration to (default: None).
Replacements: @v=firmware version, @f=device friendly
name, @h=device hostname
-F, --backup-type json|bin|dmp
backup filetype (default: 'json')
-E, --extension append filetype extension for -i and -o filename
(default)
-e, --no-extension do not append filetype extension, use -i and -o
filename as passed
JSON:
JSON backup format specification
--json-indent <indent>
pretty-printed JSON output using indent level
(default: 'None'). -1 disables indent.
--json-compact compact JSON output by eliminate whitespace
--json-hide-pw hide passwords (default)
--json-unhide-pw unhide passwords
Info:
additional information
-h, --help show usage help message and exit
-H, --full-help show full help message and exit
-v, --verbose produce more output about what the program does
-V, --version show program's version number and exit
Either argument -d <host> or -f <filename> must be given.
### Examples
The most of the examples are for linux command line. Under Windows call the program using `python decode-config.py ...`.
#### Config file
Note: The example contains .ini style sections `[...]`. Sections are always treated as comment and serves as clarity only.
For further details of config file syntax see [https://pypi.org/project/ConfigArgParse](https://pypi.org/project/ConfigArgParse/).
*my.conf*
[Source]
username = admin
password = myPaszxwo!z
[JSON]
json-indent 2
#### Using Tasmota binary configuration files
1. Restore a Tasmota configuration file
`decode-config.py -c my.conf -d sonoff --restore-file Config_Sonoff_6.2.1.dmp`
2. Backup device using Tasmota configuration compatible format
a) use file extension to choice the file format
`decode-config.py -c my.conf -d sonoff --backup-file Config_@f_@v.dmp`
b) use args to choice the file format
`decode-config.py -c my.conf -d sonoff --backup-type dmp --backup-file Config_@f_@v`
#### Use batch processing
for device in sonoff1 sonoff2 sonoff3; do ./decode-config.py -c my.conf -d $device -o Config_@f_@v
or under windows
for device in (sonoff1 sonoff2 sonoff3) do python decode-config.py -c my.conf -d %device -o Config_@f_@v
will produce JSON configuration files for host sonoff1, sonoff2 and sonoff3 using friendly name and Tasmota firmware version for backup filenames.