cleaning temporary files

.gitignore

@@ -1,5 +1,5 @@
 /.clj-kondo/
-/.cpcache/
+/**/.cpcache/
 /.lsp/
 /target/
 .nrepl-port

README.md

@@ -1,55 +1,196 @@
 # clj-totp
 
-TOTP (Timebased One Time Password) in clojure. It can be used in the command line, web API o simple embeded web.
+TOTP (Time-based One Time Password) in clojure. It supports several digest algorithms and length.
+
 
 ## What is TOPT
 
-The TOPT is an standad used to generate a time-based password. Usually, this password is used as a second
+The TOPT is a standard used to generate a time-based password. Usually, this password is used as a second
 factor authentication.
 
-You can red more about the algorith here:
+You can read more about the algorithm here:
 
 - Wikipedia: https://en.wikipedia.org/wiki/Time-based_one-time_password
 - TOTP RFC: https://web.archive.org/web/20110711124823/http://tools.ietf.org/html/rfc6238
 - HOTP RFC: https://www.ietf.org/rfc/rfc4226.txt
 
-## The inside
 
-This project is done 100% in clojure. It uses `deps.edn` for configuring the project.
+## How to use
 
-## Features
+![Use example](use_example.gif)
+
+First, you must have installed a Java Runtime Environment. Check https://adoptium.net/es if you are
+unsure how to install.
+
+The project is distributed as a jar file with all dependencies included (a.k.a. "uberjar"), and uses
+a simple script to launch the program. Script and uberjar must be in the same directory.
+
+Execute without parameters to show main commands
+
+```bash
+clj-totp.sh
+```
+
+A quick description of each command:
+
+- `generate`: Show a TOTP with a given secret and parameters, not stored in config.
+- `config`: Manage configuration file
+- `add`: Store a new TOTP configuration
+- `delete`: Delete an stored configuration
+- `list`: Shows a list of TOPT stored configurations
+- `get`: Generate a TOTP previously added
+- `import`: Import a URL with the TOTP configuration
+
+
+### Quick and simple generation
+
+If you want to quickly generate a TOPT, you only need to suministrate the secret in B32 format:
+
+```bash
+clj-totp.sh generate <B32 secret>
+```
+
+The OTP changes every 30 seconds, you can print every change with `-c` option:
+
+```bash
+clj-totp.sh generate -c <B32 secret>
+```
+
+It will update the TOTP every 30 seconds, until you press `<Enter>` or `<ctrl+c>`.
+
+
+### Store your configurations
+
+Writing the B32 secret each time can be a bit tedious, but you can store secrets for your applications.
+Be carefull, this version **don't encrypt passwords**, secrets are saved in plain text in a file in
+your home dir.
+
+With the `config` command you can check your configuration file. Now, let's explorer the subcommands:
+
+Check if the config file exists, and show the full path:
+
+```bash
+clj-totp.sh info config
+```
+
+Create a new config file, if the file exists, it will prompt you if you want to overwrite it:
+
+``` bash
+clj-totp.sh info init
+```
+
+Show all data contained in the config file, as a table:
+
+``` bash
+clj-totp.sh info show
+```
+
+
+### Use stored configurations
+
+If you have a valid configuration file, it's time to configure some applications.
+
+To add a new configured application, you can use the `add` command. The simplest way to add a new
+configuration is to specify an alias and the secret in B32:
+
+``` bash
+clj-totp.sh add <alias> <b32 secret>
+```
+
+The `add` subcommand has a lot of configuration options, you can explore them wit the `-?` param.
+
+To list all added configurations, use the `list` command:
+
+``` bash
+clj-totp.sh list
+```
+
+If you made a mistake, you can delete a configured app with the `delete` command:
+
+``` bash
+clj-totp.sh delete <alias>
+```
+
+When you have some configured apps, it's time to use them, with the `get` command. To generate a
+single TOTP for some app you can simple pass a list of alias:
+
+``` bash
+clj-totp.sh get <alias1> <alias2> <aliasN>
+```
+
+It will show the TOTP value at the current time, but TOTPs changes every 30 seconds, to show
+the value when it changes, add the `-c` param. It will update the TOTP for each alias until you
+press enter key (or <Ctrl-C>):
+
+``` bash
+clj-totp.sh get <alias1> <alias2> <aliasN> -c
+```
+
+Finally, this program has an `import` command, that can import from a decoded QR or exported data
+from Google Autenticator:
+
+``` bash
+clj-totp.sh import <alias> "<url>"
+```
+
+
+## Project's plan
 
 ### v1.0
-- Functional TOTP generation
-- Get TOTP from command line
-- Continuous update every 30 seconds
+- [x] Functional TOTP generation
+- [x] Get TOTP from command line
+- [x] Continuous generation
 
-## Usage
-You can use the `clojure` command to run the program:
-```
-clojure -M:run <params>
+### v1.1
+- [x] Store configuration in a properties file or simple DB
+- [x] Import from `otpauth` and `otpauth-migration` protocols
+- [x] Show several OTPs at once
+
+### v1.2
+- [x] Show progress bar
+- [x] Styles for progress bar
+- [x] Native compilation script corrections
+
+### v2
+- [x] Restructurate as a multiproject
+- [ ] REST API
+- [ ] User management
+- [ ] Robust BD backend (H2, datomic, or similar)
+
+### v3
+- [ ] Simple web connected to REST API
+
+
+## Ideas
+
+Some ideas for future versions:
+
+- Store passwords securely: https://github.com/weavejester/crypto-password
+
+
+## Building the project
+
+This project is done 100% in clojure. It uses `deps.edn` for configuring the project and `build.clj`
+for defining compilation tasks.
+
+The first step is to install Java JDK, version 11 or newer (version 21 recommended).
+
+To execute manually the main function, simple use the `:run` alias:
+
+```bash
+clojure -M:run/cli <commands and parameters>
 ```
 
-If you prefer using the distributed jar:
-```
-java -jar clj-topt-1.0.35-standalone.jar <params>
+To build the uberjar:
+
+```bash
+clojure -T:build :uber/cli
 ```
 
-You can use the binary (compiled with GraalVM) in linux environments:
-```
-totp <params>
-```
-
-All three methods are equivalent.
-
-### Generate a single TOTP
-You can simple run:
-```
-totp generate <secret in BASE32>
-```
-
-If want to update coninously the generated TOTP, you cand add the `-s` param:
-```
-totp generate <secret in BASE32> -s
+There is a utility script to build a native executable using Graal VM. Please, edit the script and
+check the path to your Graal installation. Use it at your own risk.
+
+```bash
+native.sh
 ```
 

build.clj

@@ -1,25 +1,174 @@
 (ns build
-  (:require [clojure.tools.build.api :as b]))
+  (:refer-clojure :exclude [test])
+  (:require [clojure.tools.build.api :as b]
+            [clojure.java.io :as io]
+            [clojure.pprint :as pp]
+            [clojure.java.basis :as basis]))
 
-(def lib 'es.rcorral/clj-topt)
-(def version (format "1.0.%s" (b/git-count-revs nil)))
-(def class-dir "target/classes")
-(def uber-file (format "target/%s-%s-standalone.jar" (name lib) version))
+(def lib-group "es.rcorral")
+(def artifact-prefix "clj-totp")
+(def subprojs-base "projects")
+(def curr-version (format "2.0.%s" (b/git-count-revs nil)))
 
-;; delay to defer side effects (artifact downloads)
-(def basis (delay (b/create-basis {:project "deps.edn"})))
 
-(defn clean [_]
-  (b/delete {:path "target"}))
+;; Builds artifact's full descriptor for each subproject
+(defn lib [subproj]
+  (symbol (str lib-group "/" artifact-prefix "-" subproj )))
 
-(defn uber [_]
-  (clean nil)
-  (b/copy-dir {:src-dirs ["src" "resources"]
-               :target-dir class-dir})
-  (b/compile-clj {:basis @basis
-                  :ns-compile '[totp.app]
-                  :class-dir class-dir})
-  (b/uber {:class-dir class-dir
-           :uber-file uber-file
-           :basis @basis
-           :main 'totp.app}))
+
+;; Basis for each subproject, using their own deps.edn
+;; Injects :extra-deps from :build as additional dependencies
+(defn basis [subproj]
+  (delay (b/create-basis {:project (str subprojs-base "/" subproj "/deps.edn")
+                          ;; Inject extra deps as deps
+                          :extra {:deps (get-in (basis/initial-basis) [:aliases :build :extra-deps])}
+                          })))
+
+
+;; Show basis generated for a subproject
+#_{:clojure-lsp/ignore [:clojure-lsp/unused-public-var]}
+(defn show-basis [subproj]
+  (println (with-out-str
+             (pp/pprint
+              @(basis subproj)
+              ;(basis/initial-basis)
+              ))))
+
+(comment 
+  (pp/pprint (keys (basis/initial-basis)))
+  (pp/pprint (:deps (basis/initial-basis)))
+  (pp/pprint (:libs (basis/initial-basis)))
+  (pp/pprint (sort (keys (:aliases (basis/initial-basis)))))
+  (get-in (basis/initial-basis) [:aliases :build :extra-deps])
+  )
+
+;; Target dir for each subproject
+(defn target-dir [subproj]
+  (str "target/" subproj))
+
+
+;; Path for compiled classes
+(defn class-dir [subproj]
+  (str (target-dir subproj) "/" "classes"))
+
+
+;; Jar file for each subproject. :uber type adds -standalone suffix
+(defn jar-file [subproj version type]
+  (format "target/%s-%s-%s%s.jar" artifact-prefix subproj version
+          (if (= type :uber) "-standalone" "")))
+
+
+;; Clean target dir for subproject
+(defn clean [{:keys [subproj]}]
+  (b/delete {:path (target-dir subproj)})
+  (println "Project" subproj "cleaned"))
+
+
+;; Compile java classes, only if java subdir exists
+(defn compile-java [subproj]
+  (let [java-dir (str subprojs-base "/" subproj "/java")]
+    (when (.exists (io/file java-dir))
+      (println "Compiling java code for" subproj)
+      (b/javac {:src-dirs [java-dir]
+                :class-dir (class-dir subproj)
+                :basis @(basis subproj)
+                :javac-opts ["-source" "11" "--target" "11" "-proc:none"]}))))
+
+
+;; Create a jar file
+(defn jar
+  "Build a simple jar file, with no dependencies included."
+  [{:keys [subproj version]
+    :or {version curr-version}}]
+  (let [target-dir (target-dir subproj)
+        class-dir (class-dir subproj)
+        src-dir (str subprojs-base "/" subproj "/src")
+        resources-dir (str subprojs-base "/" subproj "/resources")
+        basis (basis subproj)
+        jar-file (jar-file subproj version :plain)]
+    ;; Clean only class dir
+    (b/delete {:path class-dir})
+    ;; Copy code
+    (b/copy-dir {:src-dirs [src-dir]
+                 :target-dir class-dir})
+    ;; Copy resources
+    (b/copy-dir {:src-dirs [resources-dir]
+                 :target-dir target-dir})
+    ;; Compile java code, if exists
+    (compile-java subproj)
+    ;; Build jar
+    (b/jar {:class-dir class-dir
+            :basis @basis
+            :jar-file jar-file
+            :lib (lib subproj)
+            :version version})
+    (println "Generated jar file:" jar-file)))
+
+
+;; Create an uber jar, with all dependencies inside
+#_{:clojure-lsp/ignore [:clojure-lsp/unused-public-var]}
+(defn uber
+  "Build a uberjar with all dependencies included"
+  [{:keys [subproj version main-ns]
+    :or {version curr-version}}]
+  (let [target-dir (target-dir subproj)
+        basis (basis subproj)
+        class-dir (class-dir subproj)
+        src-dir (str subprojs-base "/" subproj "/src")
+        resources-dir (str subprojs-base "/" subproj "/resources")
+        uber-file (jar-file subproj version :uber)]
+    ;(println "Using basis: ")(show-basis subproj)
+    (b/delete {:path class-dir})
+    (b/copy-dir {:src-dirs [src-dir]
+                 :target-dir class-dir})
+    (b/copy-dir {:src-dirs [resources-dir]
+                 :target-dir target-dir})
+    (compile-java subproj)
+    (b/compile-clj {:basis @basis
+                    :src-dirs [src-dir] :class-dir class-dir})
+    (b/uber {:class-dir class-dir
+             :uber-file uber-file
+             :basis @basis
+             :main main-ns})
+    (println "Generated uberjar executable:" uber-file)))
+
+
+;; Multimethod to get the name of all subdirs in a dir.
+;; Accepts strings or files
+(defmulti get-subdirs type)
+
+(defmethod get-subdirs
+  java.lang.String [dir]
+  (get-subdirs (io/file dir)))
+
+(defmethod get-subdirs
+  java.io.File [dir]
+  (if (.isDirectory dir)
+    (filter #(.isDirectory %) (.listFiles dir))
+    (println "Directory" subprojs-base "doesn't exists!")))
+
+
+;; Get the name of all subdir in a given directory
+(defn get-subdir-names
+  "Get a list projects in the 'projects' directory"
+  [dir-name]
+  (map #(.getName %) (get-subdirs dir-name)))
+
+(comment
+  (get-subdirs "projects")
+  (get-subdirs (io/file "projects"))
+  (get-subdir-names "projects")
+)
+
+
+;; Generate jar files for all projects
+(defn jar-all
+  "Build jar files for all projects"
+  [& {:keys [version]
+      :or {version curr-version}}]
+  (dorun (map #(jar {:subproj % :version version}) (get-subdir-names subprojs-base))))
+
+(comment 
+  (jar-all )
+
+)

collect-deps.sh

@@ -1 +1,11 @@
-~/.sdkman/candidates/java/21.0.2-graalce/bin/java -agentlib:native-image-agent=config-output-dir=META-INF/native-image -jar target/clj-topt-1.0.32-standalone.jar g TUGOBTEHPSCMUCYAT6UPELNWGE -c
+#!/usr/bin/env sh
+
+JAVA_CMD=~/.sdkman/candidates/java/21.0.2-graalce/bin/java
+UBERJAR=$(realpath --relative-to=. target/clj-totp-cli-*-standalone.jar)
+
+echo "Using uberjar $UBERJAR"
+
+$JAVA_CMD -agentlib:native-image-agent=config-output-dir=target/native-image\
+ -jar $UBERJAR import "deleteme" "otpauth-migration://offline?data=CkkKEJ0M4MyHfITKCwCfqPIttjESFHJ1YmVuY2pAMThCMTY5RDVGRjAwGgRTTldMIAEoATACQhMzYjkxMDQxNzI3NzgzNDIzNDYyEAIYASAA" 
+
+java -jar $UBERJAR delete "deleteme"

deps.edn

@@ -1,19 +1,74 @@
-{:paths   ["src"]
+{:paths   ["src" "resources" "target/classes"]
  :deps    {org.clojure/clojure                 {:mvn/version "1.12.1"}
-           io.github.clojure/tools.build       {:mvn/version "0.10.10"}
-           mvxcvi/alphabase                    {:mvn/version "3.0.185"} ;; https://github.com/greglook/alphabase
-           cli-matic/cli-matic                 {:mvn/version "0.5.4"}   ;; https://github.com/l3nz/cli-matic
-           ;; Native image (GraalVM)
-           com.github.clj-easy/graal-build-time {:mvn/version "1.0.5"}};; Tutorial: https://shagunagrawal.me/posts/setup-clojure-with-graalvm-for-native-image/
+           ;; Native image (GraalVM). Tutorial: https://shagunagrawal.me/posts/setup-clojure-with-graalvm-for-native-image/
+           com.github.clj-easy/graal-build-time {:mvn/version "1.0.5"}
+           ;; Local subprojects
+           clj-totp/core {:local/root "projects/core"}
+           clj-totp/cli  {:local/root "projects/cli"}
+           clj-totp/web  {:local/root "projects/web"}
+           clj-totp/gui  {:local/root "projects/gui"}
+           }
 
- :aliases {;; Execute the app
-           :run      {:main-opts   ["-m" "totp.app"]}
+ :aliases {;; Execute the app.
+           :run {:main-opts ["-m" "totp.app"]}
+           ;:run {:exec-fn totp.app/-main}
+
+           ;; Execute the app (prepared for more subprojects)
+           :run/cli {:main-opts ["-m" "totp.app"]}
+
+           :run/gui {:main-opts ["-m" "totp.gui"]}
 
            ;; Kaocha runner. You can use the 'kaocha' wrapper located in ~/bin/kaocha
-           :test     {:extra-paths ["test"]                 ;; https://cljdoc.org/d/uberdeps/uberdeps/1.4.0/doc/readme
-                      :extra-deps  {lambdaisland/kaocha {:mvn/version "1.91.1392"}}
+           ;; Check test.edn for kaocha runner's config
+           :test     {:extra-deps  {lambdaisland/kaocha {:mvn/version "1.91.1392"}
+                                    lambdaisland/kaocha-cloverage {:mvn/version "1.1.89"}}
                       :main-opts   ["-m" "kaocha.runner"]}
 
            ;; Run with clj -T:build function-in-build
            :build    {:deps {io.github.clojure/tools.build {:mvn/version "0.10.10"}}
-                      :ns-default build}}}
+                      ;; Used by all compilations
+                      :extra-deps {clj-totp/core {:local/root "projects/core"}}
+                      :ns-default build}
+
+           ;; Aliases for easy building
+           :build/core {:deps {io.github.clojure/tools.build {:mvn/version "0.10.10"}}
+                        :ns-default build
+                        :exec-fn jar
+                        :exec-args {:subproj "core"}}
+
+           :build/cli {:deps {io.github.clojure/tools.build {:mvn/version "0.10.10"}
+                              clj-totp/core {:local/root "projects/core"}}
+                       :ns-default build
+                       :exec-fn jar
+                       :exec-args {:subproj "cli"}}
+
+           :build/web {:deps {io.github.clojure/tools.build {:mvn/version "0.10.10"}}
+                       :replace-deps {clj-totp/core {:local/root "projects/core"}}
+                       :ns-default build
+                       :exec-fn jar
+                       :exec-args {:subproj "web"}}
+           
+           :build/gui {:deps {io.github.clojure/tools.build {:mvn/version "0.10.10"}}
+                       :replace-deps {clj-totp/core {:local/root "projects/core"}}
+                       :ns-default build
+                       :exec-fn jar
+                       :exec-args {:subproj "gui"}}
+           
+           ;; Build the three libraries
+           :build/all {:deps {io.github.clojure/tools.build {:mvn/version "0.10.10"}}
+                       :replace-deps {clj-totp/core {:local/root "projects/core"}}
+                       :ns-default build
+                       :exec-fn jar-all}
+
+           ;; Build uber jar for CLI app
+           :uber/cli {:deps {io.github.clojure/tools.build {:mvn/version "0.10.10"}}
+                      :ns-default build
+                      :exec-fn uber
+                      :exec-args {:subproj "cli" :main-ns "totp.app"}}
+           
+           ;; Build uber jar for CLI app
+           :uber/gui {:deps {io.github.clojure/tools.build {:mvn/version "0.10.10"}}
+                      :ns-default build
+                      :exec-fn uber
+                      :exec-args {:subproj "gui" :main-ns "totp.app"}}}}
+

native.cmd

@@ -0,0 +1,33 @@
+
+@echo off
+
+setlocal
+
+REM YOUR LOCAL GRAAL VM INSTALLATION
+set JAVA_HOME=D:\programas\graalvm-jdk-21.0.7+8.1
+REM generated file
+set BIN_FILE=totp
+
+set DEST_DIR=C:\Users\rubencj\util
+
+set PATH=%JAVA_HOME%\bin;%CLOJURE_HOME%;%PATH%
+set NATIVE=%JAVA_HOME%\bin\native-image.cmd
+
+
+echo Using GraalVM native compiler: %NATIVE%
+
+echo Creating uberjar
+clojure -T:build uber
+
+set UBERJAR=
+for /f "delims=" %%a in ('dir /b /s target\clj-totp-*-standalone.jar') do @set UBERJAR=%%a
+echo Created uberjar: %UBERJAR%
+
+echo "Creating native image"
+cmd /c %NATIVE% -jar %UBERJAR% -o target\%BIN_FILE% -H:+ReportExceptionStackTraces --features=clj_easy.graal_build_time.InitClojureClasses --report-unsupported-elements-at-runtime --verbose --no-fallback -H:ReflectionConfigurationFiles=reflect_config.json -H:-CheckToolchain --initialize-at-build-time=org.fusesource.jansi.Ansi
+
+
+echo Executable created: target\%BIN_FILE%.exe
+
+copy target\%BIN_FILE%.exe %DEST_DIR%
+echo Native image copied to %DEST_DIR%\%BIN_FILE%.exe

native.sh

@@ -1,14 +0,0 @@
-#!/usr/bin/env sh
-
-NATIVE=~/.sdkman/candidates/java/21.0.2-graalce/bin/native-image
-UBERJAR=clj-topt-1.0.32-standalone.jar
-BIN_FILE=totp
-
-echo "Creating uberjar"
-clojure -T:build uber
-
-echo "Creating native image"
-
-$NATIVE -jar target/$UBERJAR -o target/$BIN_FILE -H:+ReportExceptionStackTraces --features=clj_easy.graal_build_time.InitClojureClasses --report-unsupported-elements-at-runtime --verbose --no-fallback -H:ReflectionConfigurationFiles=./reflect_config.json
-
-echo "Executable created on target/$BIN_FILE"

native_cli.sh

@@ -0,0 +1,35 @@
+#!/usr/bin/env sh
+
+NATIVE=~/.sdkman/candidates/java/21.0.2-graalce/bin/native-image
+BIN_FILE=totp
+
+echo "Creating uberjar"
+#clojure -T:uber/cli
+UBERJAR=$(realpath --relative-to=target target/clj-totp-cli-*-standalone.jar)
+
+echo "Using uberjar $UBERJAR"
+
+echo "Creating native image"
+$NATIVE -jar target/$UBERJAR -o target/$BIN_FILE\
+    -H:+ReportExceptionStackTraces\
+    -H:ReflectionConfigurationFiles=./reflect_config.json\
+    --verbose --no-fallback\
+    --features=clj_easy.graal_build_time.InitClojureClasses\
+    --report-unsupported-elements-at-runtime\
+    --strict-image-heap\
+    -march=native\
+    -R:MaxHeapSize=10m\
+    --trace-object-instantiation=java.lang.Thread\
+    --initialize-at-build-time=org.fusesource.jansi.Ansi\
+    --initialize-at-build-time='org.fusesource.jansi.Ansi$Color'\
+    --initialize-at-build-time='org.fusesource.jansi.Ansi$Attribute'\
+    --initialize-at-build-time='org.fusesource.jansi.Ansi$1'\
+    --initialize-at-run-time=cljc_long.constants__init
+    
+
+echo "Executable created on target/$BIN_FILE"
+cp target/$BIN_FILE ~/bin
+echo "Copied to ~/bin/$BIN_FILE"
+
+echo "Compress executable for distribution"
+xz -fv target/$BIN_FILE

projects/cli/deps.edn

@@ -0,0 +1,16 @@
+{:paths   ["src" "resources" "target/classes"]
+ :deps    {;clj-totp/core                       {:local/root "../core"}
+           org.clojure/clojure                 {:mvn/version "1.12.1"}
+           cli-matic/cli-matic                 {:mvn/version "0.5.4"}   ;; https://github.com/l3nz/cli-matic
+           ;; Progress bar
+           com.github.pmonks/spinner           {:mvn/version "2.0.284"}
+           com.github.clj-easy/graal-build-time {:mvn/version "1.0.5"}}
+
+ :aliases {;; Execute the app
+           ;:run      {:main-opts   ["-m" "totp.app"]}
+
+           ;; Kaocha runner. You can use the 'kaocha' wrapper located in ~/bin/kaocha
+           :test     {:extra-paths ["test"]
+                      :extra-deps  {lambdaisland/kaocha {:mvn/version "1.91.1392"}}
+                      :main-opts   ["-m" "kaocha.runner"]}}}
+

projects/cli/src/totp/app.clj

@@ -0,0 +1,371 @@
+(ns totp.app
+  #_{:clj-kondo/ignore [:refer-all]}
+  (:require [totp.core :refer :all]
+            [totp.data :refer :all]
+            [cli-matic.core :refer [run-cmd]]
+            [clojure.pprint :as pp]
+            [clojure.string :as str]
+            [progress.determinate :as pd])
+  (:import [java.util TimerTask Timer])
+  (:gen-class))
+
+(def DEFAULT_BAR_STYLE :coloured-ascii-boxes)
+
+(defn print-timer
+  ([] (print-timer 1 30 DEFAULT_BAR_STYLE))
+  ([bar-style] (print-timer 1 30 bar-style))
+  ([start period bar-style]
+   (let [a (atom start)]
+     (pd/animate! a :opts {:total period
+                                ;:line 1
+                           :label "Next TOTP: "
+                                ;:redraw-rate 60 ;; updates per second
+                           :style (get pd/styles bar-style)}
+                       ;(println)
+                  (run! (fn [_] (Thread/sleep 1000) (swap! a inc)) (range start (inc period)))
+                       ;(println)
+                  ))))
+
+
+(defn- print-confinuous
+  ([secret] (print-confinuous secret "sha1" 6 30 true DEFAULT_BAR_STYLE))
+  ([secret algorithm digits period bar bar-style]
+   (let [step-millis (* 1000 period)
+         now         (System/currentTimeMillis)
+         delay       (int (- step-millis (rem now step-millis)))
+         delay-sec   (int (/ delay 1000))
+         fn-show     (fn [s] (println (format "%n[%d] %s%n"
+                                              (System/currentTimeMillis)
+                                              (get-otp s algorithm digits period))))
+         task        (proxy [TimerTask] []
+                       (run [] (println) (fn-show secret)))
+         task-bar    (proxy [TimerTask] []
+                       (run [] (print-timer bar-style)))
+         task-init   (proxy [TimerTask] []
+                       (run [] (print-timer (- period delay-sec) period bar-style)))]
+     (println "\n  <Generating continuosly, press enter to stop>\n")
+     ;; (println "Now:" now ", Delay:" delay ", Next execution: " (+ now delay))
+     (println "Refresing in" delay-sec "seconds")
+     (fn-show secret)
+     ;; Now, start the tasks
+     (when bar
+       (. (new Timer) (schedule task-init 0))
+       (. (new Timer) (scheduleAtFixedRate task-bar delay step-millis)))
+     (. (new Timer) (scheduleAtFixedRate task delay step-millis)))
+   ;; Waits for a key press
+   (read-line)))
+
+
+(defn cmd-generate
+  [& {:keys [secret continuous algorithm digits period bar bar-style]}]
+  ;;(pp/pprint opts)
+  (if continuous
+    (print-confinuous secret algorithm digits period bar bar-style)
+    (println (get-otp secret algorithm digits period))))
+
+
+
+(defn- print-app
+  [app]
+  (let [{:keys [name secret algorithm digits period]
+         :or {algorithm "sha1"
+              digits 6
+              period 30}} app]
+    (println (format "[%d] %12s -> %s" (System/currentTimeMillis) name (get-otp secret algorithm digits period)))))
+
+
+(defn- print-app-continuous
+  ([period apps]
+   (let [step-millis (* 1000 period)
+         now         (System/currentTimeMillis)
+         delay       (int (- step-millis (rem now step-millis)))
+         delay-sec   (int (/ delay 1000))
+         fn-show     (fn [s]
+                       (println "\n")
+                       (dorun (map print-app s))
+                       (println) ;; Separate each
+                       )
+         task        (proxy [TimerTask] []
+                       (run [] (fn-show apps)))]
+     (println "\n  <Generating continuosly, press enter to stop>\n")
+     ;; (println "Now:" now ", Delay:" delay ", Next execution: " (+ now delay))
+     (println "Refresing in" delay-sec "seconds")
+     (fn-show apps)
+     ;; Now, start the tasks
+     (. (new Timer) (scheduleAtFixedRate task delay step-millis)))
+   )) ;; Waits for a key press
+
+
+(defn cmd-get-multi
+  [& {:keys [continuous bar bar-style _arguments]}]
+  ;(pp/pprint opts)
+  (with-config
+    (let [apps (filter some? #_{:clj-kondo/ignore [:unresolved-symbol]}
+                             (map #(get-app cfg %) _arguments))]
+      ;(println "found apps: " apps)
+      (if continuous
+        (let [period      30
+              step-millis (* 1000 period)
+              now         (System/currentTimeMillis)
+              delay       (int (- step-millis (rem now step-millis)))
+              delay-sec   (int (/ delay 1000))
+              task-bar    (proxy [TimerTask] []
+                            (run [] (print-timer bar-style)))
+              task-init   (proxy [TimerTask] []
+                            (run [] (print-timer (- period delay-sec) period bar-style)))]
+          (print-app-continuous period apps)
+          (when bar
+            (. (new Timer) (schedule task-init 0))
+            (. (new Timer) (scheduleAtFixedRate task-bar delay step-millis)))
+          (read-line))
+        (dorun (map #(print-app %) apps))))))
+
+
+(defn cmd-config
+  [& {:keys [command]}]
+  ;;(pp/pprint opts)
+  (case command
+    "info" (println "Configuration file:"
+                    (if (exists-config)
+                      cfg-file
+                      (str "not found. Expected location: " cfg-file)))
+    "init" (if (exists-config)
+             (do
+               (println "Configuration already exists, this will delete it. Are you sure? [N/y]")
+               (case (read-line)
+                 "y" (create-cfg-file)
+                 "Y" (create-cfg-file)
+                 (println "Cancelling operation.")))
+             (create-cfg-file))
+    "show" (do
+             (println "Config file:\n")
+             ;(println (slurp cfg-file))
+             (pp/print-table (load-config)))))
+
+
+(defn cmd-list
+  [& {:keys [sorted mode]}]
+  (println "List mode:" mode)
+  (if (exists-config)
+    (case mode
+      "list" (let [apps-list (list-apps (load-config))
+                   s-list    (if sorted (sort apps-list) apps-list)]
+               (dorun (map #(println %) s-list)))
+      "table" (pp/print-table (load-config))
+    )
+    (println "Config file not found.")))
+
+
+(defn cmd-add
+  [& {:keys [name secret user issuer algorithm digits period update] }]
+  ;;(pp/pprint opts)
+  (when (not (exists-config))
+    (println "Config not found. Creating new config")
+    (create-cfg-file))
+  (let [cfg (load-config)]
+    (if (or update (nil? (get-app cfg name))) ;; get-app returns nil if app don't exists
+      (do
+        (store-config (add-app cfg name secret user issuer algorithm digits period))
+        (println "App" name "added or updated."))
+      (println "App" name "already exists.\nUse --update if you want to overwrite"))))
+
+
+#_{:clj-kondo/ignore [:unresolved-symbol]}
+(defn cmd-import
+  [& {:keys [name url update] }]
+  (with-config
+    (if (or update (nil? (get-app cfg name)))
+      (cond
+        (str/starts-with? url "otpauth-migration")
+          (do
+            (store-config (import-from-url-export cfg name url))
+            (println "Import successful"))
+        (str/starts-with? url "otpauth")
+          (do
+            (store-config (import-from-url-create cfg name url))
+            (println "Import successful"))
+        :else (println "URL type not supported"))
+      (println "App" name "already exists.\nUse --update if you want to overwrite"))))
+
+
+(defn cmd-delete
+  [& {:keys [name force]}]
+  ;;(pp/pprint opts)
+  (if (exists-config)
+    (let [cfg (load-config)]
+      (when (or force (some? (get-app cfg name)))
+        (store-config (delete-app cfg name))))
+    (println "Config file not found.")))
+
+
+(def cli-options
+  {:app {:command "totp"
+         :version "1.2"
+         :description ["Generate a TOTP"]}
+
+   :commands [;; Generate a TOTP with given params
+              {:command "generate"
+               :description "Generate one TOTP for a BASE32 secret, ignoring configured apps"
+               :examples    ["Generate one TOTP for a provided BASE32 secret:"
+                             "  totp generate ABCD1234"
+                             "Generate one TOTP and refresh it continuosly:"
+                             "  totp generate -c ABCD1234"]
+               :opts [{:option "secret" :short 0
+                       :as "Secret encoded in BASE32"
+                       :type :string
+                       :default :present}
+                      {:option "continuous" :short "c"
+                       :as "Contiuous mode"
+                       :type :with-flag
+                       :default false}
+                      {:option "algorithm" :short "a"
+                       :as "Algorithm used for the key generation"
+                       :type #{"sha1" "sha256" "sha512"}
+                       :default "sha1"}
+                      {:option "digits" :short "d"
+                       :as "Number of digits for OTP. Usually 6 or 8"
+                       :type :int
+                       :default 6}
+                      {:option "period" :short "p"
+                       :as "Validity time in seconds"
+                       :type :int
+                       :default 30}
+                      {:option "bar" :short "b"
+                       :as "Show progress bar"
+                       :type :with-flag
+                       :default true}
+                      {:option "bar-style" :short "s"
+                       :as "Progress bar style"
+                       :type #{:ascii-basic :ascii-boxes :coloured-ascii-boxes :emoji-circles :emoji-boxes}
+                       :default :coloured-ascii-boxes}]
+               :runs cmd-generate}
+              ;; Generate a TOTP for a configured app
+              {:command "get" :short "g"
+               :description "Generate one TOTP for a configured app"
+               :examples    ["Generate one TOTP for a provided app:"
+                             "  totp get app1"
+                             "Generate one TOTP and refresh it continuosly:"
+                             "  totp get -c app1"]
+               :opts [{:option "name" :short 0
+                       :as "Name of the previous configured app"
+                       :type :string
+                       :default :present}
+                      {:option "continuous" :short "c"
+                       :as "Contiuous mode"
+                       :type :with-flag
+                       :default false}
+                      {:option "bar" :short "b"
+                       :as "Show progress bar"
+                       :type :with-flag
+                       :default true}
+                      {:option "bar-style" :short "s"
+                       :as "Progress bar style"
+                       :type #{:ascii-basic :ascii-boxes :coloured-ascii-boxes :emoji-circles :emoji-boxes}
+                       :default :coloured-ascii-boxes}]
+               :runs cmd-get-multi}
+              ;; Check and init your config file
+              {:command "config" :short "c"
+               :description "Manage configuration"
+               :examples ["Show location for the configuration file:"
+                          "  totp config info"
+                          "Recreate config (warning: it will delete the existing config file):"
+                          "  totp config init"
+                          "Show configuration:"
+                          "  totp config show"]
+               :opts [{:option "command" :short 0
+                       :as "Command to execute. See examples"
+                       :type #{"info" "init" "show"}
+                       :default :present}]
+               :runs cmd-config}
+              ;; List available apps
+              {:command "list" :short "l"
+               :description "List existing apps"
+               :examples ["List apps:"
+                          "  totp list"
+                          "List apps sorted by name:"
+                          "  totp list --sorted"]
+               :opts [{:option "sorted" :short "s"
+                       :as "If provided, the list will be sorted by name"
+                       :type :with-flag
+                       :default false}
+                      {:option "mode" :short "m"
+                       :as "How to show the list of configured apps"
+                       :type #{"list" "table"}
+                       :default "list"}]
+               :runs cmd-list}
+              ;; Adds a new app to the configuration
+              {:command "add" :short "a"
+               :description "Add a new application with an unique name"
+               :examples ["Add a new application named 'app1' with a BASE32 secred, with defaults:"
+                          "  totp add app1 \"MJXW42LBORXQ====\""
+                          "Add an application, with all posible configuration params:"
+                          "  topt add app2 \"MJXW42LBORXQ====\" -u \"user1@server\" -i my_provider -a sha1 -d 6 -p 30 --update"]
+               :opts [{:option "name" :short 0
+                       :as "Unique name (alias) for the application"
+                       :type :string
+                       :default :present}
+                      {:option "secret" :short 1
+                       :as "Secret encoded in BASE32"
+                       :type :string
+                       :default :present}
+                      {:option "user" :short "u"
+                       :as "Username in the format <user>@<server>"
+                       :type :string}
+                      {:option "issuer" :short "i"
+                       :as "The issuer (provider) of the service"
+                       :type :string}
+                      {:option "algorithm" :short "a"
+                       :as "Algorithm used for the key generation"
+                       :type #{"sha1" "sha256" "sha512"}
+                       :default "sha1"}
+                      {:option "digits" :short "d"
+                       :as "Number of digits for OTP. Usually 6 or 8"
+                       :type :int
+                       :default 6}
+                      {:option "period" :short "p"
+                       :as "Validity time in seconds"
+                       :type :int
+                       :default 30}
+                      {:option "update"
+                       :as "Update an app with the same name if exists"
+                       :type :with-flag
+                       :default false}]
+               :runs cmd-add}
+              ;; Import from URL
+              {:command "import" :short "i"
+               :description "Import a TOTP config from a URL"
+               :examples ["Import from a QR for creation"
+                          "  totp import app1 \"otpauth://totp/<label>?issuer=<issuer>&secret=<base32 secret>\""
+                          "Import from a QR for exportation"
+                          "  totp import app2 \"otpauth-migration://offline?data=<exported data>\""]
+               :opts [{:option "name" :short 0
+                       :as "Unique name of the application"
+                       :type :string
+                       :default :present}
+                      {:option "url" :short 1
+                       :as "Imported URL"
+                       :type :string
+                       :default :present}
+                      {:option "update"
+                       :as "Update an app with the same name if exists"
+                       :type :with-flag
+                       :default false}]
+               :runs cmd-import}
+              ;; Deletes an existing app from configuration
+              {:command "delete" :short "d"
+               :description "Removes an existing application by it's unique name"
+               :examples ["Remove the application name app1"
+                          "  totp remove app1"]
+               :opts [{:option "name" :short 0
+                       :as "Unique name of the application"
+                       :type :string
+                       :default :present}
+                      {:option "force" :short "f"
+                       :as "Don't ask, just remove"
+                       :type :with-flag
+                       :default false}]
+               :runs cmd-delete}]})
+
+
+(defn -main [& args]
+  (run-cmd args cli-options))

projects/cli/tests.edn

@@ -0,0 +1 @@
+#kaocha/v1 {}

projects/core/deps.edn

@@ -0,0 +1,14 @@
+{:paths   ["src" "resources" "target/classes"]
+ :deps    {org.clojure/clojure                 {:mvn/version "1.12.1"}
+           mvxcvi/alphabase                    {:mvn/version "3.0.185"} ;; https://github.com/greglook/alphabase
+           ;; Protobuf for java
+           com.google.protobuf/protobuf-java   {:mvn/version "3.25.8"}
+           ;; Dynamic protobuf
+           com.github.s-expresso/clojobuf      {:mvn/version "0.2.1"}
+           }
+
+ :aliases {;; Kaocha runner. You can use the 'kaocha' wrapper located in ~/bin/kaocha
+           :test     {:extra-paths ["test"]
+                      :extra-deps  {lambdaisland/kaocha {:mvn/version "1.91.1392"}}
+                      :main-opts   ["-m" "kaocha.runner"]}}}
+

projects/core/resources/clj-totp.sh

@@ -0,0 +1,8 @@
+#!/usr/bin/env sh
+
+JAVA_EXECUTABLE=java
+UBER_JAR=$(realpath clj-totp-*-standalone.jar)
+OPTS="-Xms256m -Xmx256m -client -Dclojure.spec.skip-macros=true"
+
+
+$JAVA_EXECUTABLE $OPTS -jar $UBER_JAR $@

projects/core/resources/proto/otpauth-migration.proto

@@ -0,0 +1,39 @@
+syntax = "proto3";
+
+message MigrationPayload {
+  enum Algorithm {
+    ALGORITHM_UNSPECIFIED = 0;
+    ALGORITHM_SHA1 = 1;
+    ALGORITHM_SHA256 = 2;
+    ALGORITHM_SHA512 = 3;
+    ALGORITHM_MD5 = 4;
+  }
+
+  enum DigitCount {
+    DIGIT_COUNT_UNSPECIFIED = 0;
+    DIGIT_COUNT_SIX = 1;
+    DIGIT_COUNT_EIGHT = 2;
+  }
+
+  enum OtpType {
+    OTP_TYPE_UNSPECIFIED = 0;
+    OTP_TYPE_HOTP = 1;
+    OTP_TYPE_TOTP = 2;
+  }
+
+  message OtpParameters {
+    bytes secret = 1;
+    string name = 2;
+    string issuer = 3;
+    Algorithm algorithm = 4;
+    DigitCount digits = 5;
+    OtpType type = 6;
+    int64 counter = 7;
+  }
+
+  repeated OtpParameters otp_parameters = 1;
+  int32 version = 2;
+  int32 batch_size = 3;
+  int32 batch_index = 4;
+  int32 batch_id = 5;
+}

projects/core/src/totp/core.clj

@@ -0,0 +1,127 @@
+(ns totp.core
+  (:require [alphabase.base32 :as b32]
+            [clojure.math :as m])
+  (:import (javax.crypto Mac)
+           (javax.crypto.spec SecretKeySpec)
+           (java.util Base64 Arrays)
+           (java.nio ByteBuffer)))
+
+(def ^:private byte-array-type (type (.getBytes "")))
+
+(defn timestamp->steps
+  "Converts from UNIX timestamp in milliseconds to a number os steps of 's' seconds of duration"
+  [time, step-size]
+  (if (or (nil? time) (nil? step-size) (zero? step-size))
+    0
+    (int (quot time (* 1000 step-size)))))
+
+
+(defn bytes-array?
+  "Return true if x is a byte[]"
+  [x]
+  (= byte-array-type (type x)))
+
+
+(defn get-alg
+  [alg]
+  (case alg
+    "sha1"  "HmacSHA1"
+    "sha256" "HmacSHA256"
+    "sha512" "HmacSHA512"
+    ""))
+
+
+(defmulti hmac
+  "Generates an HMAC. Algorithms supported: sha1, sha256, sha512.
+   The key and the message can be (both) string or array of bytes, nil otherwise"
+  (fn [algorithm key message]
+    (cond
+      (and (string? key) (string? message) (some? (get-alg algorithm))) :string
+      (and (bytes-array? key) (bytes-array? message) (some? (get-alg algorithm))) :byte
+      :else :nil)))
+
+;; By default
+(defmethod hmac :nil [_ _ _]
+  nil)
+
+;; When key and message are strings
+(defmethod hmac :string [algorithm key message]
+  (if (or (empty? key) (empty? message))
+    ""
+    (let [mac (doto (Mac/getInstance (get-alg algorithm)) (.init (SecretKeySpec. (.getBytes key) (get-alg algorithm))))
+          hmac-bytes (.doFinal mac (.getBytes message))]
+      ;; Return the Base64 encoded HMAC
+      (.encodeToString (Base64/getEncoder) hmac-bytes))))
+
+;; When key and message are arrays of bytes
+(defmethod hmac :byte [algorithm key message]
+  (if (nil? message)
+    (bytes (byte-array 0))
+    (let [mac (doto (Mac/getInstance (get-alg algorithm)) (.init (SecretKeySpec. key (get-alg algorithm))))
+          hmac-bytes (.doFinal mac message)]
+      ;; Return the Base64 encoded HMAC
+      (Base64/getEncoder) hmac-bytes)))
+
+
+(defn long->bytes
+  "Converts a long to an array of 8 bytes"
+  [l]
+  ;;Java equivalent: ByteBuffer.allocate(Long.SIZE / Byte.SIZE).putLong(someLong).array();
+  (when (integer? l)
+    (-> (ByteBuffer/allocate (/ Long/SIZE Byte/SIZE))
+        (.putLong l)
+        (.array))))
+
+
+(defn bytes->int
+  "Converts an array of 4 bytes to an integer"
+  [bytes]
+  ;;Java equivalent:  ByteBuffer.wrap(data).getInt()
+  (when (some? bytes)
+    (.getInt (ByteBuffer/wrap bytes))))
+
+
+(defn get-otp
+  "Generate an OTP with the given secret (in base32) for the specified timestep"
+  ([secret algorithm digits period] ;;algorithm digits period
+   (when (and secret period)
+     (let [step (timestamp->steps (System/currentTimeMillis) period)
+           k (b32/decode secret)
+           c (long->bytes step)
+           hs (hmac algorithm k c)
+           offset (bit-and (get hs (dec (count hs))) 0x0f) ;; int offset = hs[hs.length-1] & 0xf;
+           chunk (Arrays/copyOfRange hs offset (+ offset 4)) ;(take 4 (drop offset hs)) ;; byte[] chunk = Arrays.copyOfRange(hs, offset, offset+4) 
+           ]
+       (format (str "%0" digits "d")
+               (-> chunk
+                   (bytes->int)
+                   (bit-and 0x7fffffff)
+                   (rem (int (m/pow 10 digits))))))))
+  ([secret]
+   (get-otp secret "sha1" 6 30)))
+
+
+(defn calculate-offset-millis
+  [period]
+  (let [step-millis (* 1000 period)
+        now         (System/currentTimeMillis)]
+    (int (rem now step-millis))))
+
+
+(defn calculate-delay-millis
+  [period]
+  (let [step-millis (* 1000 period)]
+    (- step-millis (calculate-offset-millis period))))
+
+
+(comment
+  (let [now (System/currentTimeMillis)
+        off (calculate-offset-millis 30)
+        delay (calculate-delay-millis 30)
+        ]
+    (println "Now:   " (int (/ now 1000)) "secs" now "millis")
+    (println "Offset:" (int (/ off 1000)) "secs" off "millis")
+    (println "Delay: " (int (/ delay 1000)) "secs" delay "millis")
+    (println "Total: " (+ (int (/ off 1000)) (int (/ delay 1000))) "secs" (+ delay off) "millis")
+    )
+  )

projects/core/src/totp/data.clj

@@ -0,0 +1,249 @@
+(ns totp.data
+  (:require [totp.otp-proto :as proto]
+            [clojure.edn :as e]
+            [clojure.string :as str]
+            [clojure.java.io :as io]
+            [clojure.pprint :as pp]
+            [alphabase.base64 :as b64]
+            [alphabase.base32 :as b32]))
+
+(defn join-path
+  "Joins several subpaths using system's path separator (/ un *NIX and \\ in windows)"
+  [& col]
+  (str/join java.io.File/separator col))
+
+
+(def cfg-path (join-path (System/getProperty "user.home") ".config" "totp"))
+
+(def cfg-file (join-path cfg-path "apps.edn"))
+
+(def cfg-header ";; clj-totp configuration file
+;; This file contents a list of maps with :name and :secret entries
+;; Secrets must be encoded in BASE32
+
+")
+
+
+(defn exists-config
+  "Checks if the config file exists"
+  []
+  (.exists (io/file cfg-file)))
+
+
+(defn create-cfg-file
+  "Creates the config file"
+  []
+  (println "Creating " cfg-file)
+  (io/delete-file cfg-file true)
+  (io/make-parents cfg-file)
+  (spit cfg-file cfg-header)
+  true)
+
+
+(defn create-cfg?
+  "Create configuration file if not exists. Overridable with allways = true"
+  ([] (create-cfg? false))
+  ([allways]
+   (if (or allways (not (exists-config)))
+     (create-cfg-file)
+     false)))
+
+(comment
+  (exists-config)
+  (create-cfg?))
+
+
+(defn load-config
+  "Loads configuration from file"
+  []
+  (e/read-string (slurp cfg-file)))
+
+
+(defn store-config
+  "Store configuration to file"
+  [cfg]
+  (when cfg
+    (spit cfg-file (str cfg-header (with-out-str
+                                     (binding [pp/*print-right-margin* 50]
+                                       (pp/pprint cfg)))))))
+
+
+(defn delete-app
+  [cfg name]
+  (filter #(not= name (:name %)) cfg))
+
+
+(defn create-app
+  ([name secret] (create-app name secret nil nil "sha1" 6 30))
+  ([name secret user issuer] (create-app name secret user issuer "sha1" 6 30))
+  ([name secret user issuer algorithm digits period] 
+   {:name name :secret secret :user user :issuer issuer :algorithm algorithm :digits digits :period period}))
+
+
+(defn add-app
+  ([cfg app-map] (apply add-app (cons cfg (vals app-map))))
+  ([cfg name secret] (add-app cfg name secret nil nil "sha1" 6 30))
+  ([cfg name secret user issuer algorithm digits period]
+   (conj (delete-app cfg name) (create-app name secret user issuer algorithm digits period))))
+
+
+(defn list-apps
+  [cfg]
+  (->> cfg
+       (filter #(contains? % :name))
+       (map :name)))
+
+(comment
+  (list-apps (load-config))
+  (with-config #_{:clj-kondo/ignore [:unresolved-symbol]}
+               (list-apps cfg))
+  )
+
+
+(defn get-app
+  [cfg name]
+  (let [app (first (filter #(= name (:name %)) cfg))]
+    (if app
+      app
+      (println "App" name "not found"))))
+
+
+(comment
+  (exists-config)
+  (create-cfg?)
+  (load-config)
+
+  (get-app [{:name "abc" :secret "def"} {:name "my-app" :secret "abc123"} {:name "another app" :secret "ABCDEF1234"}] "my-app2")
+
+  (with-out-str
+    (binding [pp/*print-right-margin* 50]
+      (pp/pprint [{:name "abc" :secret "def"} {:name "my-app" :secret "abc123"}])))
+
+  (store-config [{:name "abc" :secret "def"} {:name "my-app" :secret "abc123"} {:name "another app" :secret "ABCDEF1234"}])
+
+  (-> nil
+      (add-app "app1" "abc123abc123")
+      (add-app "app2" "abc123abc123")
+      (add-app "app1" "123456789012")
+      (store-config))
+)
+
+
+(defmacro with-config
+  "Loads config file and stores it in a cfg binding.
+  You can use the cfg var the inner code.
+
+  Next example will print config data:
+  (with-config (println cfg))
+
+  Be cafefull: dont use a binding called cfg in any module.
+  "
+  [form]
+    (let [cfg (symbol "cfg")]   ;; This symbol will prevent error with qualified in the inner let
+        `(if (exists-config)
+             (let [~cfg (load-config)] ;; This is the problematic let binding. See: https://stackoverflow.com/a/15122414
+               (if (some? ~cfg)
+                 (do ~form)))
+        (println "Config file not found"))))
+
+
+(comment
+  #_{:clj-kondo/ignore [:unresolved-symbol]}
+  (with-config (first cfg))
+
+  (macroexpand-1 '(with-config (first cfg)))
+  )
+
+
+
+(defn url-create->app
+  "Import data from url using the protocol otpauth://
+   
+   Example: otpauth://totp/Example:alice@google.com?secret=JBSWY3DPEHPK3PXP&issuer=Example
+
+  https://github.com/google/google-authenticator/wiki/Key-Uri-Format"
+  [name url]
+  (when (str/starts-with? url "otpauth://")
+    (let [parts (str/split url #"\?")
+          meta-parts (str/split (first parts) #"/" -1)
+          data-parts (str/split (second parts) #"&" -1)
+          otp-type (nth meta-parts 2)]
+      (if (not= "totp" otp-type) ;; Only totp is supported
+        (println "Invalid protocol OTP type:" otp-type)
+        (let [user-data (str/split (nth meta-parts 3) #":" -1)
+              issuer (first user-data)
+              user (second user-data)
+              ;data-map (apply hash-map (flatten (map #(str/split % #"=") data-parts)))
+              data-map (reduce (fn [acc v]  ;; From array to map
+                                 (let [[k v] (str/split v #"=")]
+                                   (assoc acc (keyword k) v)))
+                               {} data-parts)
+              secret (:secret data-map)
+              ;;issuer2 (:issuer data-map)
+              ]
+          (create-app name secret user issuer))))))
+
+(comment
+  (url-create->app "app1" "otpauth://totp/Reddit:errepunto?issuer=Reddit&secret=3RR2")
+
+  (url-create->app "app2" "otpauth://totp/Example:alice@google.com?secret=JBSWY3DPEHPK3PXP&issuer=Example")
+
+  (add-app [{:a 1 :b 2}] (url-create->app "app2" "otpauth://totp/Example:alice@google.com?secret=JBSWY3DPEHPK3PXP&issuer=Example"))
+  )
+
+(defn import-from-url-create
+  [cfg name url]
+  (add-app cfg (url-create->app name url)))
+
+(comment
+  #_{:clj-kondo/ignore [:unresolved-symbol]}
+  (with-config (import-from-url-create cfg "app1" "otpauth://totp/Example:alice@google.com?secret=JBSWY3DPEHPK3PXP&issuer=Example"))
+  )
+
+
+
+(defn url-export->app
+  [name url]
+  (when (some? url)
+    (let [b64-data   (second (str/split url #"=" -1))
+          data-b     (b64/decode b64-data)
+          payload    (proto/parse-data data-b)
+          ;{:keys [name secret name issuer digits algorithm type]} payload
+          secret     (:secret payload)
+          user       (:name payload)
+          issuer     (:issuer payload)
+          algorithm  (:algorithm payload)
+          digits     (:digits payload)
+          valid-type (= 2 (:type payload))
+          ]
+      ;(println "name:" name "user:" user "issuer:" issuer "digits:" digits "algorithm:" algorithm "valid type?" valid-type)
+      (if valid-type
+        (create-app name secret user issuer algorithm digits 30)
+        (println "Invalid OTP type" (:type payload)))
+      )))
+
+(comment
+  (url-export->app "test"
+                   "otpauth-migration://offline?data=CkkKEJ0M4MyHfITKCwCfqPIttjESFHJ1YmVuY2pAMThCMTY5RDVGRjAwGgRTTldMIAEoATACQhMzYjkxMDQxNzI3NzgzNDIzNDYyEAIYASAA"
+  )
+)
+
+
+
+(defn import-from-url-export
+  "Import data from url using the protocol otpauth-migration://
+
+  https://alexbakker.me/post/parsing-google-auth-export-qr-code.html"
+  [cfg name url]
+  (add-app cfg (url-export->app name url)))
+
+(comment
+  #_{:clj-kondo/ignore [:unresolved-symbol]}
+  (with-config (import-from-url-export
+                cfg
+                "app2"
+                "otpauth-migration://offline?data=CkkKEJ0M4MyHfITKCwCfqPIttjESFHJ1YmVuY2pAMThCMTY5RDVGRjAwGgRTTldMIAEoATACQhMzYjkxMDQxNzI3NzgzNDIzNDYyEAIYASAA")
+    )
+  )
+
+

projects/core/src/totp/otp_import.clj

@@ -0,0 +1,385 @@
+(ns totp.otp-import
+  (:require [alphabase.bytes :as b]
+            [alphabase.base16 :as hex]
+            [alphabase.base64 :as b64]
+            [alphabase.base2 :as b2]
+            [clojure.math :as m]
+            [clojure.string :as s]))
+
+;; Original description of the export protocol uses Google's Protocol Buffers
+;; https://protobuf.dev/
+
+(def WIRE_TYPES {:varint 0  ;; Integeres of variable length encoding
+                 :i64 1     ;; Fixed 64 bits numbers (integer or decimal)
+                 :len 2     ;; Block of bytes with a predefined length
+                 :sgroup 3  ;; Group end (deprecated)
+                 :egroup 4  ;; Group start (deprecated)
+                 :i32 5     ;; Fixed 32 bits number (integer or decimal)
+                 })   
+
+(comment
+  (let [encoded "CkkKEJ0M4MyHfITKCwCfqPIttjESFHJ1YmVuY2pAMThCMTY5RDVGRjAwGgRTTldMIAEoATACQhMzYjkxMDQxNzI3NzgzNDIzNDYyEAIYASAA"
+        decoded (b64/decode encoded)]
+    (print (hex/encode decoded))
+    (print (b/to-string decoded))))
+
+
+(defn to-fancy-bin
+  "Return a string with bits from number in a fancy manner"
+  [x]
+  (s/join " "
+          (map s/join
+               (partition 8 (b2/encode (byte-array (map #(b/to-byte %) x)))))))
+
+
+(defn to-fancy-hex
+  "Return a string with hex values from number in a fancy manner"
+  ([x]
+   (to-fancy-hex x 2))
+  ([x group-size]
+   (s/join " "
+           (map s/join
+                (partition group-size (hex/encode (byte-array (map #(b/to-byte %) x))))))))
+
+
+(defn len-bits
+  "How may blocks of n bits are needed to encode this number?
+   
+   We use the following formula, for calculating the number of digits required
+   to encode the number n in the base b:
+
+       digits = ceil ( log_n ( x + 1 ) )
+   "
+  [n x]
+  (case x
+    nil 0 ;; nill is encoded with zero bytes
+    0 1   ;; One block to zero
+    9223372036854775807 (len-bits n (dec x)) ;; Beware the overflow!! it's best to lose some precision
+    (when (and (>= x 0) (some? n) (> n 0))
+      (long (m/ceil (/ (m/log (inc x)) (m/log (m/pow 2 n))))))))
+
+(comment
+  (len-bits 8 513)
+  (len-bits 8 Long/MAX_VALUE)
+  (len-bits 8 (dec Long/MAX_VALUE)))
+
+
+(defn len-bytes
+  "How may bytes are needed to encode this number?"
+  [x]
+  (len-bits 8 x))
+
+
+(defn integer>bytes
+  "Converts an integer to a byte array"
+  [x]
+  (when x (let [len (len-bytes x)
+                hex-len (* 2 len)]
+            (hex/decode (String/format (str "%0" hex-len "x") (into-array [x]))))))
+
+(comment
+  (integer>bytes 513)
+  10r3
+  3r10)
+
+
+(defn euclidean-quot
+  "Euclidean division for integers
+   
+   More info: https://en.wikipedia.org/wiki/Euclidean_division
+   "
+  [a b]
+  (when (zero? b)
+    (throw (IllegalArgumentException. "You can't divide by zero!")))
+  (let [b-abs (Math/abs b)
+        r     (mod a b-abs)] ;; 0 <= r < |b|
+    (quot (- a r) b)         ;; adjusts quotient with the positive remainder 
+    ))
+
+
+(defn euclidean-rem
+  "Modulus for euclidean division for integers
+   
+   More info: https://en.wikipedia.org/wiki/Euclidean_division
+   "
+  [a b]
+  (when (zero? b)
+    (throw (IllegalArgumentException. "You can't divide by zero!")))
+  (let [b-abs (Math/abs b)]
+    (mod a b-abs);; 0 <= r < |b|
+    ))
+
+
+(defn euclid-div
+  "Euclidean division. Returns quotient and remainder as a map. The remainder is
+   allways a positive number.
+   
+   More info: https://en.wikipedia.org/wiki/Euclidean_division"
+  [a b]
+  (when (zero? b)
+    (throw (IllegalArgumentException. "You can't divide by zero!")))
+  (let [b-abs (Math/abs b)
+        r     (mod a b-abs)        ;; 0 <= r < |b|
+        q     (quot (- a r) b)]    ;; adjusts quotient with the positive remainder 
+    {:q q :r r}))
+
+
+(comment
+  (euclid-div 7 3)
+  (euclid-div -7 3)
+  (euclid-div 7 -3)
+  (euclid-div -7 -3))
+
+
+
+(defn decimal->base
+  "Converts a decimal number to an arbitrary base. Each digit is encoded as an 
+   integer with value between 0 and base-1.
+   
+   For example, 10 in base 4 will be encoded as:
+       [2 0 2]
+   , 127 in base 126 will be:
+       [1 1]
+   and so on.
+
+   We will use the sucessive division method: do a integer division of the number
+   to the base until the quotient is zero, and take the reminders backwards. For
+   example, if we want to converto 127 to base 5:
+
+       127 / 5 = 25 rem 2
+        25 / 5 =  5 rem 0
+         5 / 5 =  1 rem 0
+         1 / 5 =  0 rem 1
+   
+   so, 127 in base 5 is 1002.
+
+   The maximum digits this method can return is 65. Max size for a long is base 2
+   is 64, so if you obtain a result with 65 digits is very probable that the
+   conversion has failed.
+
+   If the number is negative and the base is possitive, we return the conversion
+   of the absolute value. You must take care of the sign in your implementation.
+       
+   There are negative bases as -2 that can encode possitive and negative numbers.
+   "
+  ([base n]
+   (decimal->base base n true))
+  ([base n reverse?]
+   (if (or (nil? n) (nil? base) (zero? n) (zero? base))
+     [0] ;; Allways [0] for base zero or number zero
+     (loop [acc []
+            x (if (and (< n 0) (> base 0)) (abs n) n)] ;; If n < 0 and b > 0 => |n|, else n
+       (let [q (euclidean-quot x base)
+             r (euclidean-rem x base)]
+         ;;(printf "Acc: %s Calculating: %s/%s -> %s rem %s%n" acc x base q r)
+         (if (or (zero? x) (> (count acc) (inc Long/SIZE))) ;; max digits is 65
+           (vec (if reverse? (reverse acc) acc)) ;; When x is zero, we have finished
+           (recur
+            (conj acc r) ;; Accumulate the remainder
+            q            ;; Pass the quotient to the next step
+            )))))))
+
+(comment
+  (decimal->base 2 8)
+  2r1000
+  (decimal->base 2 3)
+
+  (letfn [(step [x b name q r]
+            (printf "%s -> %d/%d = %d rem %d%n" name x b q r))
+          (examples [x b exp-q exp-r]
+            (step x b "EXPECTED   " exp-q exp-r)
+            (step x b "IEEE       " (int (m/IEEE-remainder x b)) (rem x b))
+            (step x b "With rem   " (quot x b) (rem x b))
+            (step x b "With mod   " (quot x b) (mod x b))
+            (step x b "floor      " (m/floor-div x b) (m/floor-mod x b))
+            (step x b "Manual 1   " (int (clojure.math/round (double (/ x b)))) (rem x b))
+            (step x b "Manual 2   " (int (clojure.math/rint (double (/ x b)))) (rem x b))
+            (step x b "Unchecked  " (unchecked-divide-int x b) (unchecked-remainder-int x b))
+            (step x b "Euclidean  " (euclidean-quot x b) (euclidean-rem x b)))]
+    (examples -3 -2 2 1)
+    (println)
+    (examples 2 -2 -1 0)
+    (println)
+    (examples -1 -2 1 1)
+    (println)
+    (examples 1 -2 0 1)
+    (println)
+    (println)
+    (examples 7 3 2 1)
+    (println)
+    (examples -7 3 -3 2)
+    (println)
+    (examples 7 -3 -2 1)
+    (println)
+    (examples -7 -3 3 2)))
+
+
+(defn base->decimal
+  "Converts from an array with values in an arbitrary base into decimal values"
+  [base n]
+  (if (or (nil? n) (nil? base) (zero? (count n)))
+    0
+    (long (reduce-kv
+           (fn [acc k v]
+             (+ acc (* v (m/pow base k))))
+           0 (vec (reverse n))))))
+
+(comment
+  (reduce-kv #(+ %1 (* %3 (m/pow 2 %2))) 0 [1 0 0 0]) ;; backwards!
+  (base->decimal 2 [1 0 0 0]))
+
+
+(defn int->varint
+  "Converts a integer value to a varint, that is encoded in 7 bits, where the first
+   bit is used to indicate if there are more bytes.
+   
+   For example, the number 255 is usually encoded in a byte as follows:
+       11111111
+   but in a varint it will turn to:
+       10000001 01111111
+   
+   First byte has the MSB set to 1, because there is another byte after it. The
+   second byte is the last one, so the MSB is set to 0.
+
+   The result is a byte array.
+   "
+  [x]
+  (let [b128 (decimal->base 128 x false)]
+    (byte-array (conj
+                 (vec (map #(bit-or 2r10000000 %)  (butlast b128)))
+                 (bit-and 2r01111111 (peek b128))))))
+
+
+(defn varint->int
+  "Converts a varint to an integer. Each byte in varint uses the MSB as a continuation
+   bit: if it's value is 1, there are more bites, if it's 0 it's the last block.
+   
+   For example, this varint with two bytes:
+       10000001 01111111
+   
+   first byte's MSB has value 1, so there is another byte. The second one has a zero
+   in the MSB, so it's the last block. To calculate the final value, you must ignore
+   the MSB and concatenate both bytes:
+       110010110 00000001 -> original value
+         0010110  0000001 -> delete MSB
+         0000001  0010110 -> reverse bytes (little-endian to big endian)
+           00000010010110 -> concatenate
+       00000000 10010110  -> fill the bytes
+   "
+  [x]
+  (base->decimal 128 (reverse (map #(bit-and 2r01111111 %) x))))
+
+
+(comment
+  ;; 150
+  (to-fancy-bin [-106, 1])
+  (to-fancy-bin (map #(bit-and 2r01111111 %) [-106, 1]))
+  (to-fancy-bin (reverse (map #(bit-and 2r01111111 %) [-106, 1])))
+  (varint->int [-106, 1])
+
+  (varint->int [-106, 1])
+  (varint->int [-105, 1])
+
+  ;; Long/MAX_VALUE
+  (to-fancy-bin (map #(bit-and 2r01111111 %) [-1, -1, -1, -1, -1, -1, -1, -1, 128]))
+  (varint->int [-2, -1, -1, -1, -1, -1, -1, -1, 127]))
+
+
+(defn more-blocks?
+  "True if the MSB bit is 1"
+  [b]
+  (when b
+    (< 0 (bit-and 2r10000000 b))))
+
+(comment
+  (bit-and 2r10000000 2r10000001)
+  (bit-and 2r10000000 2r00000001)
+  ( more-blocks? 2r10000001)
+  (more-blocks? 2r00000001)
+  )
+
+
+(defn extract-varint-blocks
+  "Group varints in a byte array"
+  [bytes]
+  (loop [acc []   ;; Groups of varints
+         group [] ;; Current varint
+         r bytes] ;; Current tested byte
+    (if (empty? r) ;; Final condition: no more bytes to test
+      (if ((complement empty?) group)
+        (conj acc group) ;; Return acc with the last group added if not empty
+        acc)             ;; if empty, return acc
+      (if (more-blocks? (first r))
+        ;; If more blocks remains:
+        (recur acc
+               (conj group (first r)) ;; add current byte to current group
+               (next r))
+        ;; If it's last in varint:
+        (recur (->> (first r)
+                    (conj group) ;; add byte to group
+                    (conj acc))  ;; add group to accumulator
+               []                ;; and start a new empty group
+               (next r))))))
+
+(comment  
+  (extract-varint-blocks [2r11111111 2r01111111, 2r10000001 2r10101001 2r00000001, 2r00000111])
+  )
+
+
+(defn extract-varints
+  "Group varints in an byte array and convert them to decimal"
+  [bytes]
+  (map varint->int (extract-varint-blocks bytes)))
+
+(comment 
+  (extract-varints [2r11111111 2r01111111, 2r10000001 2r10101001 2r00000001, 2r00000111])
+
+  (varint->int [2r11111111 2r01111111])
+  (varint->int [2r10000001 2r10101001 2r00000001])
+  (varint->int [2r00000111])
+  )
+
+
+(defn bytes->len-type
+  "Prepend byte array with length in varint format"
+  [bytes]
+  (concat (int->varint (count bytes))
+          bytes))
+
+(comment 
+  (to-fancy-hex (bytes->len-type (.getBytes "testing")))
+  )
+
+
+(defn pack-bytes-as-tlv
+  "Pack the value as TLV.
+   
+   Type can one of those 6 IDs:
+   ID	Name	  Used For
+   0	VARINT	int32, int64, uint32, uint64, sint32, sint64, bool, enum
+   1	I64	    fixed64, sfixed64, double
+   2	LEN	    string, bytes, embedded messages, packed repeated fields
+   3	SGROUP	group start (deprecated)
+   4	EGROUP	group end (deprecated)
+   5	I32	    fixed32, sfixed32, float
+   "
+  ([{:keys [field type value]}]
+   (pack-bytes-as-tlv field type value))
+  ([field-number type value]
+   (let [field-displaced (bit-shift-left field-number 3)
+         tag (int->varint (bit-or field-displaced type))]
+     (concat tag value))))
+
+
+(defn unpack-tlv-bytes
+  "Returns a map with 3 pairs:
+   - :field is the field number
+   - :type is one of the values of WIRE_TYPES
+   - :value is the byte array with the payload"
+  [packed]
+  (let [first-byte (bit-and 2r01111111 (first packed)) ;; bye bye, MSB
+        type (bit-and 2r00000111 first-byte)
+        field-number (bit-shift-right first-byte 3)]
+    {:field field-number :type type :value (rest packed)}))
+
+

projects/core/src/totp/otp_proto.clj

@@ -0,0 +1,45 @@
+(ns totp.otp-proto
+  (:require [clojobuf.core :refer [protoc decode]]
+            [alphabase.base64 :as b64]
+            [alphabase.base32 :as b32]))
+
+
+;; Where lookup for proto files
+(def registry (protoc ["resourcse/proto/"
+                       "projects/core/resources/proto/"]
+                      ["otpauth-migration.proto"]))
+
+
+(defn parse-data
+  [binary-data]
+  (let [decoded (decode registry :MigrationPayload binary-data)
+        msg (get-in decoded [:otp_parameters 0])]
+    ;(println "Decoded:" msg)
+    (when msg
+      {:secret (b32/encode (:secret msg))
+       :name (:name msg)
+       :issuer (:issuer msg)
+       :algorithm (case (:algorithm msg)
+                    :ALGORITHM_SHA256 "sha256"
+                    :ALGORITHM_SHA512 "sha512"
+                    :ALGORITHM_MD5 "md5"
+                    "sha1") ;; sha1 by default
+       :digits (case (:digits msg)
+                 :DIGIT_COUNT_EIGHT 8
+                 6) ;; 6 digits by default
+       :type (case (:type msg)
+               :OTP_TYPE_UNSPECIFIED 0
+               :OTP_TYPE_HOTP 1
+               :OTP_TYPE_TOTP 2) ;; Only TOTP is supported
+       })))
+
+
+(comment
+  (let [b64-data "CkkKEJ0M4MyHfITKCwCfqPIttjESFHJ1YmVuY2pAMThCMTY5RDVGRjAwGgRTTldMIAEoATACQhMzYjkxMDQxNzI3NzgzNDIzNDYyEAIYASAA"
+        bin-data (b64/decode b64-data)
+        decoded (decode registry :MigrationPayload bin-data)]
+    ;(get-in decoded [:otp_parameters 0])
+    (parse-data bin-data)
+    )
+  )
+

projects/core/test/totp/core_test.clj

@@ -1,4 +1,5 @@
 (ns totp.core-test
+  #_{:clj-kondo/ignore [:refer-all]}
   (:require [clojure.test :refer :all]
             [totp.core :refer :all]
             [alphabase.base64 :as b64])
@@ -25,21 +26,21 @@
     (is (= true (bytes-array? (.getBytes ""))))
     (is (= true (bytes-array? (bytes (byte-array [0 0 0 0 0 0 0 0])))))))
 
-(deftest hmac-sha1-test
+(deftest hmac-test
   (testing "border cases"
-    (is (= nil (hmac-sha1 nil nil)))
-    (is (= nil (hmac-sha1 "" nil)))
-    (is (= nil (hmac-sha1 nil "")))
-    (is (= nil (hmac-sha1 (.getBytes "") nil)))
-    (is (= nil (hmac-sha1 nil (.getBytes ""))))
-    (is (= "" (hmac-sha1 "" ""))))
+    (is (= nil (hmac nil nil nil)))
+    (is (= nil (hmac nil "" nil)))
+    (is (= nil (hmac nil nil "")))
+    (is (= nil (hmac nil (.getBytes "") nil)))
+    (is (= nil (hmac nil nil (.getBytes ""))))
+    (is (= "" (hmac "" "" ""))))
   (testing "String params"
-    (is (= "63h3K4sN+c3NDEl3EGeA23jq/EY=" (hmac-sha1 "12345" "this is a message")))
-    (is (= "MA+ieo7t7MeQfyZR/X52dB1aXDI=" (hmac-sha1 "12345" "this is a longer message
+    (is (= "63h3K4sN+c3NDEl3EGeA23jq/EY=" (hmac "sha1" "12345" "this is a message")))
+    (is (= "MA+ieo7t7MeQfyZR/X52dB1aXDI=" (hmac "sha1" "12345" "this is a longer message
     with some lines"))))
   (testing "byte[] params"
-    (is (Arrays/equals (b64/decode "63h3K4sN+c3NDEl3EGeA23jq/EY=") (hmac-sha1 (.getBytes "12345") (.getBytes "this is a message"))))
-    (is (Arrays/equals (b64/decode "MA+ieo7t7MeQfyZR/X52dB1aXDI=") (hmac-sha1 (.getBytes "12345") (.getBytes "this is a longer message
+    (is (Arrays/equals (b64/decode "63h3K4sN+c3NDEl3EGeA23jq/EY=") (hmac "sha1" (.getBytes "12345") (.getBytes "this is a message"))))
+    (is (Arrays/equals (b64/decode "MA+ieo7t7MeQfyZR/X52dB1aXDI=") (hmac "sha1" (.getBytes "12345") (.getBytes "this is a longer message
     with some lines"))))))
 
 
@@ -62,10 +63,10 @@
 
 (deftest get-otp-test
   (testing "Border cases"
-    (is (nil? (get-otp nil nil)))
-    (is (nil? (get-otp "" nil)))
-    (is (nil? (get-otp nil "")))
-    (is (nil? (get-otp nil 1000))))
+    (is (nil? (get-otp nil nil nil nil)))
+    (is (nil? (get-otp "" nil nil nil)))
+    (is (nil? (get-otp nil "" nil nil)))
+    (is (nil? (get-otp nil 1000 nil nil))))
   (testing "Common usage"
-    (is (= "837552" (get-otp "MJXW42LBORXQ====" 10000)))
+    (is (= 6 (count (get-otp "MJXW42LBORXQ====" "sha1" 6 10000))))
     (is (= 6 (count (get-otp "MJXW42LBORXQ===="))))))

projects/core/test/totp/otp_import_test.clj

@@ -0,0 +1,149 @@
+(ns totp.otp-import-test
+  #_{:clj-kondo/ignore [:refer-all]}
+  (:require [clojure.test :refer :all]
+            [totp.otp-import :refer :all]
+            [alphabase.bytes :as b]
+            [alphabase.base16 :as hex]
+            [alphabase.base64 :as b64]
+            [alphabase.base32 :as b32])
+  (:import (java.util Arrays)))
+
+
+(deftest len-bits-test
+  (testing "Check required number of blocks to encode a number in n bits"
+    (is (nil? (len-bits nil 10)))
+    (is (= 0 (len-bits 10 nil)))
+    (is (= 1 (len-bits 2 1)))
+    (is (= 2 (len-bits 2 10)))
+    (is (= 2 (len-bits 2 15)))
+    (is (= 3 (len-bits 2 16)))
+    (is (= 1 (len-bits 8 255)))
+    (is (= 2 (len-bits 7 255)))
+    )
+  )
+
+
+(deftest len-bytes-test
+  (testing "Check required number of bytes to encode a number"
+    (is (= 0 (len-bytes nil)))
+    (is (= 1 (len-bytes 0)))
+    (is (= 1 (len-bytes 1)))
+    (is (= 1 (len-bytes 255)))
+    (is (= 2 (len-bytes 256)))
+    (is (= 2 (len-bytes 65535)))
+    (is (= 3 (len-bytes 65536)))
+  )
+)
+
+
+(deftest integer>bytes-test
+  (testing "Convert several ints to a byte array"
+    (is (nil? (integer>bytes nil)))
+    (is (b/bytes= (b/init-bytes [0]) (integer>bytes 0)))
+    (is (b/bytes= (b/init-bytes [1]) (integer>bytes 1)))
+    (is (b/bytes= (b/init-bytes [-1]) (integer>bytes 255)))
+    (is (b/bytes= (b/init-bytes [1 0]) (integer>bytes 256)))
+    (is (b/bytes= (b/init-bytes [-1 -1]) (integer>bytes 65535)))
+    (is (b/bytes= (b/init-bytes [127 -1 -1 -1 -1 -1 -1 -1]) (integer>bytes Long/MAX_VALUE)))
+  )
+)
+
+
+(deftest decimal->base-test
+  (testing "Convert from decimal base to an arbitrary base"
+    (is (= [0] (decimal->base nil 10)))
+    (is (= [0] (decimal->base 10 nil)))
+    (is (= [0] (decimal->base 2 0)))
+    (is (= [0] (decimal->base 0 2)))
+    (is (= [1 0 0 0] (decimal->base 2 8)))
+    (is (= [2 2] (decimal->base 3 8)))
+    (is (= [2 0] (decimal->base 4 8)))
+    (is (= [1 3] (decimal->base 5 8)))
+    (is (= [3 1] (decimal->base 5 8 false)))
+    (is (= [0] (decimal->base 5 0)))
+  )
+)
+
+
+(deftest base->decimal-test
+  (testing "Convert from arbitrary base to decimal"
+    (is (zero? (base->decimal 2 nil)))
+    (is (zero? (base->decimal 2 [])))
+    (is (zero? (base->decimal nil [1])))
+    (is (= 8 (base->decimal 2 [1 0 0 0])))
+    (is (= 8 (base->decimal 3 [2 2])))
+    (is (= 8 (base->decimal 4 [2 0])))
+    (is (= 8 (base->decimal 5 [1 3])))
+  )
+)
+
+
+(deftest decimal->base-decimal-test
+  (testing "Check if convert from decimal to a base and back preserves the original number"
+    (is (= 8 (base->decimal 2 (decimal->base 2 8))))
+    (is (= 127 (base->decimal 2 (decimal->base 2 127))))
+    (is (= 417 (base->decimal 13 (decimal->base 13 417))))
+  )
+)
+
+
+(deftest int->varint-test
+  (testing "Convert from integer number (int, long, byte, etc) to varint"
+    (is (Arrays/equals (byte-array [0]) (int->varint nil)))
+    (is (Arrays/equals (byte-array [0]) (int->varint 0)))
+    (is (Arrays/equals (byte-array [2r10010110 2r00000001]) (int->varint 150)))
+  )
+)
+
+
+(deftest varint->int-test
+  (testing "Convert from barint to long"
+    (is (= 0 (varint->int nil)))
+    (is (= 0 (varint->int [0])))
+    (is (= 150 (varint->int [-106, 1])))
+    (is (= 150 (varint->int [22 1])))
+    (is (= 151 (varint->int [-105, 1])))
+  )
+)
+
+
+(deftest int->varint->int-test
+  (testing "Convert from int to varint and back to int"
+    (is (= 150 (varint->int (int->varint 150))))
+    (is (= 151 (varint->int (int->varint 151))))
+  )
+)
+
+
+(deftest more-blocks?-test
+  (testing "Check if there are more blocks in a varint type"
+    (is (nil? (more-blocks? nil)))
+    (is (true?  (more-blocks? 2r10000001)))
+    (is (true?  (more-blocks? 2r11111111)))
+    (is (false? (more-blocks? 2r00000001)))
+    (is (false? (more-blocks? 2r01111111)))
+  )
+)
+
+(deftest extract-varint-blocks-test
+  (testing "Group varints"
+    (is (empty? (extract-varint-blocks nil)))
+    (is (empty? (extract-varint-blocks [])))
+    (is (= [[2r00000111]] (extract-varint-blocks [2r00000111])))
+    (is (= [[2r00000111] [2r00000111]] (extract-varint-blocks [2r00000111 2r00000111])))
+    (is (= [[2r11111111 2r01111111] [2r10000001 2r10101001 2r00000001] [2r00000111]] (extract-varint-blocks [2r11111111 2r01111111, 2r10000001 2r10101001 2r00000001, 2r00000111])))
+    (is (= [[2r11111111 2r01111111] [2r10000001 2r10101001 2r00000001] [2r10000111]] (extract-varint-blocks [2r11111111 2r01111111, 2r10000001 2r10101001 2r00000001, 2r10000111])))
+    )
+  )
+
+(deftest extract-varints-test
+  (testing "bytes with varints to decimal"
+    (is (empty? (extract-varints nil)))
+    (is (empty? (extract-varints [])))
+    (is (= [7] (extract-varints [2r00000111])))
+    (is (= [7 7] (extract-varints [2r00000111 2r00000111])))
+    (is (= [16383 21633 7] (extract-varints [2r11111111 2r01111111, 2r10000001 2r10101001 2r00000001, 2r00000111])))
+    (is (= [16383 21633 7] (extract-varints [2r11111111 2r01111111, 2r10000001 2r10101001 2r00000001, 2r10000111])))
+  )
+)
+

projects/core/tests.edn

@@ -0,0 +1 @@
+#kaocha/v1 {}

projects/gui/deps.edn

@@ -0,0 +1,8 @@
+{:paths   ["src" "target/classes"]
+ :deps    {;;org.clojure/clojure {:mvn/version "1.12.1"}
+           cli-matic/cli-matic {:mvn/version "0.5.4"}   ;; https://github.com/l3nz/cli-matic
+           ;; GUI
+           seesaw/seesaw {:mvn/version "1.5.0"}
+           com.github.clj-easy/graal-build-time {:mvn/version "1.0.5"}}
+}
+

projects/gui/src/totp/gui.clj

@@ -0,0 +1,172 @@
+(ns totp.gui
+  #_{:clj-kondo/ignore [:refer-all]}
+  (:require [totp.core :refer :all]
+            [totp.data :refer :all]
+            [clojure.pprint :as pp]
+            [seesaw.core :refer :all]
+            [seesaw.mig :refer :all]
+            [seesaw.clipboard :as cp]
+            [seesaw.dev :refer :all])
+  (:import [java.util Date TimerTask Timer])
+  (:gen-class))
+
+
+(defn copy-handler
+  "Copies TOTP from text with id field-id, to system clipboard"
+  [field-id e]
+  (let [b-name (str "#" field-id)
+        b-obj (select (to-root e) [(keyword b-name)])
+        b-text (config b-obj :text)]
+    (println "Copying text value: " b-text)
+    (cp/contents! b-text)))
+
+
+(defn make-otp-list
+  "Make panel with OTPs"
+  []
+  (scrollable
+   (mig-panel
+    :constraints ["wrap 3"
+                  "[shrink 0]20px[200, grow, fill]10px[shrink 0]"]
+    :items (let [apps (with-config (filter some? #_{:clj-kondo/ignore [:unresolved-symbol]} cfg))]
+             (reduce (fn [acc a]
+                       (let [{:keys [name secret algorithm digits period]} a
+                             field-id (str "field-totp-" name)]
+                         (-> acc
+                             (conj [name])
+                             (conj [(text :text (get-otp secret algorithm digits period)
+                                          :editable? false
+                                          :id field-id)])
+                             (conj [(action :name "copy"
+                                            :handler (partial copy-handler field-id)
+                                            :command (str "cmd-" name))]))))
+                     [] apps)))))
+
+(comment
+  (make-otp-list))
+
+
+(defn make-time-bar
+  "Make the progress bar with the remaining time"
+  [init-val]
+  (border-panel
+   :hgap 5
+   :center (progress-bar :id "timer-bar"
+                         :value init-val
+                         :max 30
+                         :paint-string? true)
+   :east   (text :id "timer-text"
+                 :text init-val
+                 :editable? false
+                 :columns 2
+                 :halign :right)))
+
+
+(defn make-add-frame
+  [parent]
+  (frame :title "Add new TOTP"
+         :minimum-size [320 :by 200]
+         :size [320 :by 220]
+         :on-close :dispose
+         :content (border-panel
+                   :center (mig-panel
+                            :constraints ["wrap 2"
+                                          "[shrink 0]20px[200, grow, fill]"]
+                            :items [["Name"] [(text :id "add-name" :columns 32)]
+                                    ["Secret (B32)"] [(text :id "add-secret" :columns 32)]
+                                    ["User (optional)"] [(text :id "add-user" :columns 32)]
+                                    ["Issuer (optional)"] [(text :id "add-issuer" :columns 32)]
+                                    ["Algorithm"] [(combobox :model ["sha1" "sha256" "sha512"])]
+                                    ["Digits"] [(combobox :model ["6" "8"])]])
+                   :south (flow-panel :align :right :items [(action :name "Cancel")
+                                                            (action :name "Add")]))))
+
+
+(defn make-main-buttons
+  []
+  (flow-panel :align :right
+              :items ["button a" "button b"]))
+
+
+(defn make-frame-content
+  []
+  (border-panel :hgap 10 :vgap 10
+                :center (make-otp-list)
+                :north  (make-time-bar (int (/ (calculate-offset-millis 30) 1000)))
+                :south  (make-main-buttons)
+                ;:east   "EAST"
+                ;:west   "WEST"
+                ))
+
+
+(defn make-frame
+  "Make main frame's content"
+  []
+  (frame :title "TOTP",
+         :content (make-frame-content)
+         ;:minimum-size [320 :by 240]
+         ;;:on-close :exit
+         :on-close :dispose))
+
+
+
+(defn update-totps
+  "Update all totps"
+  [root]
+  (let [apps (with-config (filter some? #_{:clj-kondo/ignore [:unresolved-symbol]} cfg))]
+    (doseq [app apps]
+      (let [{:keys [name secret algorithm digits period]} app
+            field-id (str "field-totp-" name)
+            field (select root [(keyword (str "#" field-id))])
+            current-otp (get-otp secret algorithm digits period)]
+        ;;(println "Updating" field-id "with otp" current-otp)
+        (config! field :text current-otp)))))
+
+
+(defn update-progress
+  [root]
+  (let [time-bar (select root [:#timer-bar])
+        time-text (select root [:#timer-text])
+        offset (inc (int (/ (calculate-offset-millis 30) 1000)))]
+    ;;(println "Updating at at" (System/currentTimeMillis))
+    (config! time-bar :value offset)
+    (config! time-text :text offset)
+    (when (= 1 offset)
+      ;;(println "update TOTP")
+      (update-totps root))))
+
+
+(defn start-updater
+  [root]
+  (let [now (System/currentTimeMillis)
+        now-seconds (int (/ now 1000))
+        delay (- 1000 (- now (* 1000 now-seconds)))]
+    (. (new Timer) (scheduleAtFixedRate
+                    (proxy [TimerTask] []
+                      (run [] (update-progress root)))
+                    delay 1000))
+    (println "Now" now "Delay" delay)))
+
+
+
+(defn -main [& args]
+  (native!)
+  (invoke-later
+   (-> (make-frame)
+       pack!
+       show!
+       (make-add-frame)
+       start-updater))
+  (println "Gui started"))
+
+
+(comment
+  ;; This kills your REPL connection
+  (-main)
+
+  (show-options (frame))
+  (show-options (text))
+
+  (-> (make-add-frame nil)
+      (pack!)
+      (show!)))

projects/web/deps.edn

@@ -0,0 +1,18 @@
+{:paths   ["src" "resources" "target/classes"]
+ :deps    {;clj-totp/core                       {:local/root "../core"}
+           org.clojure/clojure                 {:mvn/version "1.12.1"}
+           ;; For SQLite
+           com.github.seancorfield/next.jdbc   {:mvn/version "1.3.1048"}
+           org.xerial/sqlite-jdbc              {:mvn/version "3.50.3.0"}
+           ;; For Datomic local
+           com.datomic/local                   {:mvn/version "1.0.291"};; https://docs.datomic.com/datomic-local.html
+           }
+
+ :aliases {;; Execute the app
+           ;:run      {:main-opts   ["-m" "totp.app"]}
+
+           ;; Kaocha runner. You can use the 'kaocha' wrapper located in ~/bin/kaocha
+           :test     {:extra-paths ["test"]
+                      :extra-deps  {lambdaisland/kaocha {:mvn/version "1.91.1392"}}
+                      :main-opts   ["-m" "kaocha.runner"]}}}
+

projects/web/src/totp/db/datomic.clj

@@ -0,0 +1,68 @@
+(ns totp.db.datomic
+  (:require [totp.data :as data]
+            [datomic.client.api :as d]))
+
+
+(def cfg-path (data/join-path (System/getProperty "user.home") ".config" "totp"))
+(def db-path (str cfg-path java.io.File/separator "data"))
+
+(def cfg {:server-type :datomic-local
+          :system "local-data"
+          :storage-dir db-path})
+
+(def client (d/client cfg))
+
+;; Schema for our database
+
+(def totp-schema [{:db/ident :app/name
+                   :db/valueType :db.type/string
+                   :db/cardinality :db.cardinality/one
+                   :db/unique :db.unique/identity
+                   :db/doc "Unique name of the application. Between 2 and 32 chars"
+                   :db.attr/preds  (fn [s] (<= 3 (count s) 15))}
+                  {:db/ident :app/desc
+                   :db/valueType :db.type/string
+                   :db/cardinality :db.cardinality/one
+                   :db/doc "(optional) Description of the application"}
+                  {:db/ident :app/secret
+                   :db/valueType :db.type/string
+                   :db/cardinality :db.cardinality/one
+                   :db/doc "Secret BASE32"}
+                  {:db/ident :app/period
+                   :db/valueType :db.type/long
+                   :db/cardinality :db.cardinality/one
+                   :db/doc "Time slice in seconds (30 by default)"}
+                  {:db/ident :app/config
+                   :db/valueType :db.type/string
+                   :db/cardinality :db.cardinality/one
+                   :db/doc "(Optional) Extra config"}
+
+                  {:db/ident :user/login
+                   :db/valueType :db.type/string
+                   :db/cardinality :db.cardinality/one
+                   :db/unique :db.unique/identity
+                   :db/doc "Identifier for the user"}
+                  {:db/ident :user/passwd
+                   :db/valueType :db.type/string
+                   :db/cardinality :db.cardinality/one
+                   :db/doc "Password"}
+                  {:db/ident :user/active
+                   :db/valueType :db.type/boolean
+                   :db/cardinality :db.cardinality/one
+                   :db/doc "Is the user active?"}
+                  {:db/ident :user/desc
+                   :db/valueType :db.type/string
+                   :db/cardinality :db.cardinality/one
+                   :db/doc "(Optional) Description of the user"}
+                  {:db/ident :user/config
+                   :db/valueType :db.type/string
+                   :db/cardinality :db.cardinality/one
+                   :db/doc "(Optional) Extra config"}
+                  {:db/ident :user/apps
+                   :db/valueType :db.type/ref
+                   :db/cardinality :db.cardinality/many
+                   :db/doc "Applications for this user"}])
+
+(defn init-db
+  [client]
+  (d/create-database client {:db-name "totp"}))

projects/web/src/totp/db/sqlite.clj

@@ -0,0 +1,23 @@
+(ns totp.db.sqlite
+  (:require [next.jdbc :as jdbc]))
+
+;; DB configuration
+(def db {:dbname "totp-data.sqlite"
+         :dbtype "sqlite"})
+
+;; DB parsed config
+(def data-source (jdbc/get-datasource db))
+
+(defn init-db
+  "Create an empty DB"
+  []
+  (jdbc/execute! data-source ["
+  create table apps (
+    id int auto_increment primary key,
+    name varchar(32),
+    desc varchar(255)
+  )"]))
+
+(comment 
+  (init-db)
+  )

projects/web/tests.edn

@@ -0,0 +1 @@
+#kaocha/v1 {}

reflect_config.json.bak

@@ -0,0 +1,270 @@
+[
+  {
+    "name": "com.sun.crypto.provider.HmacSHA1",
+    "methods": [
+      {
+        "name": "<init>",
+        "parameterTypes": []
+      }
+    ]
+  },
+  {
+    "name": "java.lang.reflect.Method",
+    "methods": [
+      {
+        "name": "canAccess",
+        "parameterTypes": [
+          "java.lang.Object"
+        ]
+      }
+    ]
+  },
+  {
+    "name": "java.util.Arrays",
+    "allDeclaredClasses": true,
+    "allPublicClasses": true,
+    "queryAllPublicMethods": true,
+    "methods": [
+      {
+        "name": "copyOfRange",
+        "parameterTypes": [
+          "byte[]",
+          "int",
+          "int"
+        ]
+      }
+    ]
+  },
+  {
+    "name": "java.util.Timer",
+    "queryAllPublicMethods": true,
+    "methods": [
+      {
+        "name": "scheduleAtFixedRate",
+        "parameterTypes": [
+          "java.util.TimerTask",
+          "long",
+          "long"
+        ]
+      }
+    ]
+  },
+  {
+    "name": "java.util.concurrent.locks.Lock"
+  },
+  {
+    "name": "java.util.concurrent.locks.ReentrantLock"
+  },
+  {
+    "name": "rubberbuf.ast_postprocess$eval194",
+    "methods": [
+      {
+        "name": "<init>",
+        "parameterTypes": []
+      }
+    ]
+  },
+  {
+    "name": "rubberbuf.ast_postprocess$eval209",
+    "methods": [
+      {
+        "name": "<init>",
+        "parameterTypes": []
+      }
+    ]
+  },
+  {
+    "name": "rubberbuf.ast_postprocess$eval224",
+    "methods": [
+      {
+        "name": "<init>",
+        "parameterTypes": []
+      }
+    ]
+  },
+  {
+    "name": "rubberbuf.ast_postprocess$eval242",
+    "methods": [
+      {
+        "name": "<init>",
+        "parameterTypes": []
+      }
+    ]
+  },
+  {
+    "name": "rubberbuf.ast_postprocess$eval331",
+    "methods": [
+      {
+        "name": "<init>",
+        "parameterTypes": []
+      }
+    ]
+  },
+  {
+    "name": "rubberbuf.ast_postprocess__init"
+  },
+  {
+    "name": "rubberbuf.ast_preprocess$eval148",
+    "methods": [
+      {
+        "name": "<init>",
+        "parameterTypes": []
+      }
+    ]
+  },
+  {
+    "name": "rubberbuf.ast_preprocess$eval15",
+    "methods": [
+      {
+        "name": "<init>",
+        "parameterTypes": []
+      }
+    ]
+  },
+  {
+    "name": "rubberbuf.ast_preprocess$eval179",
+    "methods": [
+      {
+        "name": "<init>",
+        "parameterTypes": []
+      }
+    ]
+  },
+  {
+    "name": "rubberbuf.ast_preprocess$eval254",
+    "methods": [
+      {
+        "name": "<init>",
+        "parameterTypes": []
+      }
+    ]
+  },
+  {
+    "name": "rubberbuf.ast_preprocess$eval265",
+    "methods": [
+      {
+        "name": "<init>",
+        "parameterTypes": []
+      }
+    ]
+  },
+  {
+    "name": "rubberbuf.ast_preprocess$eval279",
+    "methods": [
+      {
+        "name": "<init>",
+        "parameterTypes": []
+      }
+    ]
+  },
+  {
+    "name": "rubberbuf.ast_preprocess$eval290",
+    "methods": [
+      {
+        "name": "<init>",
+        "parameterTypes": []
+      }
+    ]
+  },
+  {
+    "name": "rubberbuf.ast_preprocess$eval301",
+    "methods": [
+      {
+        "name": "<init>",
+        "parameterTypes": []
+      }
+    ]
+  },
+  {
+    "name": "rubberbuf.ast_preprocess$eval314",
+    "methods": [
+      {
+        "name": "<init>",
+        "parameterTypes": []
+      }
+    ]
+  },
+  {
+    "name": "rubberbuf.ast_preprocess$eval321",
+    "methods": [
+      {
+        "name": "<init>",
+        "parameterTypes": []
+      }
+    ]
+  },
+  {
+    "name": "rubberbuf.ast_preprocess__init"
+  },
+  {
+    "name": "rubberbuf.ast_util__init"
+  },
+  {
+    "name": "rubberbuf.core__init"
+  },
+  {
+    "name": "rubberbuf.ebnf__init"
+  },
+  {
+    "name": "rubberbuf.parse__init"
+  },
+  {
+    "name": "rubberbuf.parse_textformat__init"
+  },
+  {
+    "name": "rubberbuf.util__init"
+  },
+{
+  "name":"clojobuf.constant__init"
+},
+{
+  "name":"clojobuf.core__init"
+},
+{
+  "name":"clojobuf.decode__init"
+},
+{
+  "name":"clojobuf.encode__init"
+},
+{
+  "name":"clojobuf.schema$eval367",
+  "methods":[{"name":"<init>","parameterTypes":[] }]
+},
+{
+  "name":"clojobuf.schema$eval396",
+  "methods":[{"name":"<init>","parameterTypes":[] }]
+},
+{
+  "name":"clojobuf.schema__init"
+},
+{
+  "name":"clojobuf.util__init"
+},
+{
+  "name":"clojobuf_codec.decode__init"
+},
+{
+  "name":"clojobuf_codec.deserialize__init"
+},
+{
+  "name":"clojobuf_codec.encode__init"
+},
+{
+  "name":"clojobuf_codec.io.reader.ByteReader"
+},
+{
+  "name":"clojobuf_codec.io.reader__init"
+},
+{
+  "name":"clojobuf_codec.io.writer.ByteWriter"
+},
+{
+  "name":"clojobuf_codec.io.writer__init"
+},
+{
+  "name":"clojobuf_codec.serialize__init"
+},
+{
+  "name":"clojobuf_codec.util__init"
+}
+]

src/totp/app.clj

@@ -1,64 +0,0 @@
-(ns totp.app
-  (:require [totp.core :refer :all]
-            [cli-matic.core :refer [run-cmd]]
-            [cli-matic.utils :as U]
-            [clojure.pprint :as pp])
-  (:import [java.util TimerTask Timer])
-  (:gen-class))
-
-
-(defn- print-confinuous
-  ([secret] (print-confinuous secret 30))
-  ([secret step]
-   (let [step-millis (* 1000 step)
-         now         (System/currentTimeMillis)
-         delay       (int (- step-millis (rem now step-millis)))
-         fn-show     (fn [s] (println (System/currentTimeMillis) "-> "(get-otp s)))
-         task        (proxy [TimerTask] []
-                       (run [] (fn-show secret)))]
-     (println "\n  <Generating continuosly, press enter to stop>\n")
-     ;; (println "Now:" now ", Delay:" delay ", Next execution: " (+ now delay))
-     (fn-show secret)
-     (. (new Timer) (scheduleAtFixedRate task delay step-millis)))
-  (read-line))) ;; Waits for a key press
-
-(comment
-  (print get-otp "MJXW42LBORXQ====")
-  (print-confinuous "MJXW42LBORXQ====")
-  )
-
-(defn cmd-generate
-  [& {:keys [secret continuous] :as otps}]
-  ;(pp/pprint otps)
-  (if continuous
-    (print-confinuous secret)
-    (println (get-otp secret))
-    ))
-
-
-(def cli-options
-  {:app {:command "totp"
-         :version "1.0"
-         :description ["Generate a TOTP"]}
-
-   :commands [{:command "generate" :short "g"
-               :description "Generate one TOTP with a given secret in BASE32"
-               :examples    ["Generate one TOTP and exit:"
-                             "  totp generate \"MJXW42LBORXQ====\""
-                             "Generate one TOTP, update each 30 seconds:"
-                             "  totp g -c \"MJXW42LBORXQ====\""]
-               :opts [{:option "secret"
-                       :short 0
-                       :as "Secret codified in BASE32"
-                       :type :string
-                       :default :present}
-                      {:option "continuous"
-                       :short "c"
-                       :type :with-flag
-                       :as "Contiuous mode"
-                       :default false}]
-               :runs cmd-generate}]})
-
-
-(defn -main [& args]
-  (run-cmd args cli-options))

src/totp/core.clj

@@ -1,88 +0,0 @@
-(ns totp.core
-  (:require [alphabase.base32 :as b32])
-  (:import (javax.crypto Mac)
-           (javax.crypto.spec SecretKeySpec)
-           (java.util Base64 Arrays)
-           (java.nio ByteBuffer)))
-
-(def ^:private byte-array-type (type (.getBytes "")))
-
-(defn timestamp->steps
-  "Converts from UNIX timestamp in milliseconds to a number os steps of 's' seconds of duration"
-  [time, step-size]
-  (if (or (nil? time) (nil? step-size) (zero? step-size))
-    0
-    (int (quot time (* 1000 step-size)))))
-
-
-(defn bytes-array?
-  "Return true if x is a byte[]"
-  [x]
-  (= byte-array-type (type x)))
-
-
-(defmulti hmac-sha1
-  "Generates an HMAC-SHA1. The key and the message can be (both) string or array of bytes, nil otherwise"
-  (fn [key message]
-    (cond
-      (and (string? key) (string? message)) :string
-      (and (bytes-array? key) (bytes-array? message)) :byte
-      :else :nil)))
-
-;; By default
-(defmethod hmac-sha1 :nil [_ _]
-  nil)
-
-;; When key and message are strings
-(defmethod hmac-sha1 :string [key message]
-  (if (or (empty? key) (empty? message))
-    ""
-    (let [mac (doto (Mac/getInstance "HmacSHA1") (.init (SecretKeySpec. (.getBytes key) "HmacSHA1")))
-          hmac-bytes (.doFinal mac (.getBytes message))]
-      ;; Return the Base64 encoded HMAC
-      (.encodeToString (Base64/getEncoder) hmac-bytes))))
-
-;; When key and message are arrays of bytes
-(defmethod hmac-sha1 :byte [key message]
-  (if (nil? message)
-    (bytes (byte-array 0))
-    (let [mac (doto (Mac/getInstance "HmacSHA1") (.init (SecretKeySpec. key "HmacSHA1")))
-          hmac-bytes (.doFinal mac message)]
-      ;; Return the Base64 encoded HMAC
-      (Base64/getEncoder) hmac-bytes)))
-
-
-(defn long->bytes
-  "Converts a long to an array of 8 bytes"
-  [l]
-  ;;Java equivalent: ByteBuffer.allocate(Long.SIZE / Byte.SIZE).putLong(someLong).array();
-  (when (integer? l)
-    (-> (ByteBuffer/allocate (/ Long/SIZE Byte/SIZE))
-        (.putLong l)
-        (.array))))
-
-
-(defn bytes->int
-  "Converts an array of 4 bytes to an integer"
-  [bytes]
-  ;;Java equivalent:  ByteBuffer.wrap(data).getInt()
-  (when (some? bytes)
-    (.getInt (ByteBuffer/wrap bytes))))
-
-
-(defn get-otp
-  "Generate an OTP with the given secret (in base32) for the specified timestep"
-  ([secret step]
-   (when (and secret step)
-     (let [k (b32/decode secret)
-           c (long->bytes step)
-           hs (hmac-sha1 k c)
-           offset (bit-and (get hs (dec (count hs))) 0x0f) ;; int offset = hs[hs.length-1] & 0xf;
-           chunk (Arrays/copyOfRange hs offset (+ offset 4)) ;(take 4 (drop offset hs)) ;; byte[] chunk = Arrays.copyOfRange(hs, offset, offset+4) 
-           ]
-       (format "%06d" (-> chunk
-                         (bytes->int)
-                         (bit-and 0x7fffffff)
-                         (rem 1000000))))))
-  ([secret]
-   (get-otp secret (timestamp->steps (System/currentTimeMillis) 30))))

src/totp/data.clj

@@ -1,106 +0,0 @@
-(ns totp.data
-  (:require [clojure.edn :as e]
-            [clojure.string :as str]
-            [clojure.java.io :as io]
-            [clojure.pprint :as pp]))
-
-(defn join-path
-  "Joins several subpaths using system's path separator (/ un *NIX and \\ in windows)"
-  [& col] 
-  (str/join java.io.File/separator col))
-
-
-(def cfg-path (join-path (System/getProperty "user.home") ".config" "totp"))
-
-(def cfg-file (join-path cfg-path "apps.edn"))
-
-(def cfg-header ";; clj-totp configuration file
-;; This file contents a list of maps with :name and :secret entries
-;; Secrets must be encoded in BASE32
-                 
-")
-
-
-(defn exists-config
-  "Checks if the config file exists"
-  []
-  (.exists (io/file cfg-file)))
-
-
-(defn create-cfg-file
-  "Creates the config file"
-  []
-  (println "Creating " cfg-file)
-  (io/delete-file cfg-file true)
-  (io/make-parents cfg-file)
-  (spit cfg-file cfg-header)
-  true)
-
-
-(defn create-cfg?
-  "Create configuration file if not exists. Overridable with allways = true"
-  ([] (create-cfg? false))
-  ([allways]
-   (if (or allways (not (exists-config)))
-     (create-cfg-file)
-     false)))
-
-(comment
-  (exists-config)
-  (create-cfg?)
-  )
-
-
-(defn load-config
-  "Loads configuration from file"
-  []
-  (e/read-string (slurp cfg-file)))
-
-
-(defn store-config
-  "Store configuration to file"
-  [cfg]
-  (when cfg
-    (spit cfg-file (str cfg-header (with-out-str 
-                          (binding [pp/*print-right-margin* 50]
-                          (pp/pprint cfg)))))))
-
-
-(defn delete-app
-  [cfg name]
-  (filter #(not= name (:name %)) cfg))
-
-
-(defn add-app
-  [cfg name secret]
-  (conj (delete-app cfg name) {:name name :secret secret}))
-
-
-(defn list-apps
-  [cfg]
-  (map :name cfg))
-
-
-(defn get-app
-  [cfg name]
-  (first (filter #(= name (:name %)) cfg)))
-
-
-(comment
-  (exists-config)
-  (create-cfg?)
-  (load-config)
-
-  (with-out-str
-    (binding [pp/*print-right-margin* 50]
-      (pp/pprint [{:name "abc" :secret "def"} {:name "my-app" :secret "abc123"}])))
-
-  (store-config [{:name "abc" :secret "def"} {:name "my-app" :secret "abc123"}])
-  
-  (-> nil
-      (add-app "app1" "abc123abc123")
-      (add-app "app2" "abc123abc123")
-      (add-app "app1" "123456789012")
-      (store-config))
-  
-  )

tests.edn

@@ -1 +1,6 @@
-#kaocha/v1 {}
+#kaocha/v1
+ {:tests [{:test-paths ["projects/core/src" "projects/core/test"]}]
+  :plugins [:kaocha.plugin/cloverage]
+  :cloverage/opts {:src-ns-path ["projects/core/src" "projects/core/test"]
+                   :ns-regex ["totp\\..*(?<!test)$"] ;; All starting with "totp" but not ending by "test"
+                   }}

use_example.cast

@@ -0,0 +1,812 @@
+{"version": 2, "width": 130, "height": 40, "timestamp": 1759268913, "env": {"SHELL": "/bin/bash", "TERM": "xterm-256color"}}
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+[14.043554, "o", "\r\u001b[C\u001b[Ctotp\r\n\u001b[?2004l\r"]
+[14.056176, "o", "** ERROR: **\r\nNo sub-command specified.\r\n\r\n\r\n"]
+[14.056426, "o", "NAME:\r\n totp - Generate a TOTP\r\n\r\nUSAGE:\r\n totp [global-options] command [command options] [arguments...]\r\n\r\nVERSION:\r\n 1.2\r\n\r\nCOMMANDS:\r\n   generate             Generate one TOTP for a BASE32 secret, ignoring configured apps\r\n   get, g               Generate one TOTP for a configured app\r\n   config, c            Manage configuration\r\n   list, l              List existing apps\r\n   add, a               Add a new application with an unique name\r\n   import, i            Import a TOTP config from a URL\r\n   delete, d            Removes an existing application by it's unique name\r\n\r\nGLOBAL OPTIONS:\r\n   -?, --help\r\n\r\n"]
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+[316.684175, "o", "\u001b[?2004h\r\n\u001b[38;2;214;93;14m\u001b[48;2;214;93;14;38;2;251;241;199m󰕈 ruben\u001b[48;2;215;153;33;38;2;214;93;14m\u001b[38;2;251;241;199m …/clj-totp \u001b[48;2;104;157;106;38;2;215;153;33m\u001b[38;2;251;241;199m  main ? \u001b[48;2;69;133;136;38;2;104;157;106m\u001b[38;2;251;241;199m   v21.0.8 \u001b[48;2;102;92;84;38;2;69;133;136m\u001b[48;2;60;56;54;38;2;102;92;84m\u001b[38;2;251;241;199m  23:53 \u001b[0m\u001b[38;2;60;56;54m \u001b[0m\r\n\u001b[1;38;2;152;151;26m\u001b[0m "]
+[323.48764, "o", "\u001b[7mtotp get test2 -c\u001b[27m"]
+[324.439742, "o", "\r\u001b[C\u001b[Ctotp get test2 -c\r\n\u001b[?2004l\r"]
+[324.452596, "o", "\r\n  <Generating continuosly, press enter to stop>\r\n\r\n"]
+[324.452846, "o", "Refresing in 1 seconds\r\n\r\n\r\n"]
+[324.453445, "o", "[1759269238089]        test2 -> 957725\r\n\r\n"]
+[324.454681, "o", "\u001b[25l\r\u001b[49m\u001b[39mNext TOTP:  \u001b[m\u001b[m\u001b[49m\u001b[97m▉▉▉▉▉▉▉▉▉▉▉▉▉▉▉▉▉▉▉▉▉▉▉▉▉▉▉▉▉▉▉▉▉▉▉▉▉▉▉▉▉▉▉▉▉▉▉▉▉▉▉▉\u001b[m\u001b[m\u001b[49m\u001b[93m▉\u001b[m\u001b[m\u001b[49m\u001b[90m▉\u001b[m\u001b[m\u001b[49m\u001b[39m 29/30\u001b[m\u001b[m\u001b[K\u001b[25h"]
+[325.456238, "o", "\u001b[25l\r\u001b[49m\u001b[39mNext TOTP:  \u001b[m\u001b[m\u001b[49m\u001b[97m▉▉▉▉▉▉▉▉▉▉▉▉▉▉▉▉▉▉▉▉▉▉▉▉▉▉▉▉▉▉▉▉▉▉▉▉▉▉▉▉▉▉▉▉▉▉▉▉▉▉▉▉▉\u001b[m\u001b[m\u001b[49m\u001b[93m▉\u001b[m\u001b[m\u001b[49m\u001b[39m 30/30\u001b[m\u001b[m\u001b[K\u001b[25h"]
+[326.364838, "o", "\r\n\r\n"]
+[326.364948, "o", "[1759269240001]        test2 -> 227087\r\n\r\n"]
+[326.365295, "o", "\u001b[25l\r\u001b[49m\u001b[39mNext TOTP:  \u001b[m\u001b[m\u001b[49m\u001b[97m▉\u001b[m\u001b[m\u001b[49m\u001b[93m▉\u001b[m\u001b[m\u001b[49m\u001b[90m▉▉▉▉▉▉▉▉▉▉▉▉▉▉▉▉▉▉▉▉▉▉▉▉▉▉▉▉▉▉▉▉▉▉▉▉▉▉▉▉▉▉▉▉▉▉▉▉▉▉▉▉\u001b[m\u001b[m\u001b[49m\u001b[39m  1/30\u001b[m\u001b[m\u001b[K\u001b[25h"]
+[326.45472, "o", "\r\u001b[K"]
+[327.366772, "o", "\u001b[25l\r\u001b[49m\u001b[39mNext TOTP:  \u001b[m\u001b[m\u001b[49m\u001b[97m▉▉▉\u001b[m\u001b[m\u001b[49m\u001b[93m▉\u001b[m\u001b[m\u001b[49m\u001b[90m▉▉▉▉▉▉▉▉▉▉▉▉▉▉▉▉▉▉▉▉▉▉▉▉▉▉▉▉▉▉▉▉▉▉▉▉▉▉▉▉▉▉▉▉▉▉▉▉▉▉\u001b[m\u001b[m\u001b[49m\u001b[39m  2/30\u001b[m\u001b[m\u001b[K\u001b[25h"]
+[328.368886, "o", "\u001b[25l\r\u001b[49m\u001b[39mNext TOTP:  \u001b[m\u001b[m\u001b[49m\u001b[97m▉▉▉▉▉\u001b[m\u001b[m\u001b[49m\u001b[93m▉\u001b[m\u001b[m\u001b[49m\u001b[90m▉▉▉▉▉▉▉▉▉▉▉▉▉▉▉▉▉▉▉▉▉▉▉▉▉▉▉▉▉▉▉▉▉▉▉▉▉▉▉▉▉▉▉▉▉▉▉▉\u001b[m\u001b[m\u001b[49m\u001b[39m  3/30\u001b[m\u001b[m\u001b[K\u001b[25h"]
+[329.370693, "o", "\u001b[25l\r\u001b[49m\u001b[39mNext TOTP:  \u001b[m\u001b[m\u001b[49m\u001b[97m▉▉▉▉▉▉▉\u001b[m\u001b[m\u001b[49m\u001b[93m▉\u001b[m\u001b[m\u001b[49m\u001b[90m▉▉▉▉▉▉▉▉▉▉▉▉▉▉▉▉▉▉▉▉▉▉▉▉▉▉▉▉▉▉▉▉▉▉▉▉▉▉▉▉▉▉▉▉▉▉\u001b[m\u001b[m\u001b[49m\u001b[39m  4/30\u001b[m\u001b[m\u001b[K\u001b[25h"]
+[330.372132, "o", "\u001b[25l\r\u001b[49m\u001b[39mNext TOTP:  \u001b[m\u001b[m\u001b[49m\u001b[97m▉▉▉▉▉▉▉▉\u001b[m\u001b[m\u001b[49m\u001b[93m▉\u001b[m\u001b[m\u001b[49m\u001b[90m▉▉▉▉▉▉▉▉▉▉▉▉▉▉▉▉▉▉▉▉▉▉▉▉▉▉▉▉▉▉▉▉▉▉▉▉▉▉▉▉▉▉▉▉▉\u001b[m\u001b[m\u001b[49m\u001b[39m  5/30\u001b[m\u001b[m\u001b[K\u001b[25h"]
+[331.373589, "o", "\u001b[25l\r\u001b[49m\u001b[39mNext TOTP:  \u001b[m\u001b[m\u001b[49m\u001b[97m▉▉▉▉▉▉▉▉▉▉\u001b[m\u001b[m\u001b[49m\u001b[93m▉\u001b[m\u001b[m\u001b[49m\u001b[90m▉▉▉▉▉▉▉▉▉▉▉▉▉▉▉▉▉▉▉▉▉▉▉▉▉▉▉▉▉▉▉▉▉▉▉▉▉▉▉▉▉▉▉\u001b[m\u001b[m\u001b[49m\u001b[39m  6/30\u001b[m\u001b[m\u001b[K\u001b[25h"]
+[331.57506, "o", "\r\n"]
+[331.594921, "o", "\u001b[?2004h\r\n\u001b[38;2;214;93;14m\u001b[48;2;214;93;14;38;2;251;241;199m󰕈 ruben\u001b[48;2;215;153;33;38;2;214;93;14m\u001b[38;2;251;241;199m …/clj-totp \u001b[48;2;104;157;106;38;2;215;153;33m\u001b[38;2;251;241;199m  main ? \u001b[48;2;69;133;136;38;2;104;157;106m\u001b[38;2;251;241;199m   v21.0.8 \u001b[48;2;102;92;84;38;2;69;133;136m\u001b[48;2;60;56;54;38;2;102;92;84m\u001b[38;2;251;241;199m  23:54 \u001b[0m\u001b[38;2;60;56;54m \u001b[0mtook \u001b[1;33m7s\u001b[0m \r\n\u001b[1;38;2;152;151;26m\u001b[0m "]
+[332.515102, "o", "#"]
+[333.135521, "o", " "]
+[333.803007, "o", "h"]
+[333.882813, "o", "a"]
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+[334.52687, "o", " "]
+[334.871466, "o", "f"]
+[334.951931, "o", "u"]
+[335.148189, "o", "n"]
+[335.488484, "o", "!"]
+[336.103143, "o", "\r\n\u001b[?2004l\r"]
+[336.118171, "o", "\u001b[?2004h\r\n\u001b[38;2;214;93;14m\u001b[48;2;214;93;14;38;2;251;241;199m󰕈 ruben\u001b[48;2;215;153;33;38;2;214;93;14m\u001b[38;2;251;241;199m …/clj-totp \u001b[48;2;104;157;106;38;2;215;153;33m\u001b[38;2;251;241;199m  main ? \u001b[48;2;69;133;136;38;2;104;157;106m\u001b[38;2;251;241;199m   v21.0.8 \u001b[48;2;102;92;84;38;2;69;133;136m\u001b[48;2;60;56;54;38;2;102;92;84m\u001b[38;2;251;241;199m  23:54 \u001b[0m\u001b[38;2;60;56;54m \u001b[0m\r\n\u001b[1;38;2;152;151;26m\u001b[0m "]
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