mirror of
https://github.com/wneessen/apg-go.git
synced 2024-11-22 05:40:51 +01:00
v0.3.1: New password length behaviour
To address issue #13, the password length behaviour of the original APG has been reproduced. Previously, when a minLength of 5 and a maxLength of 10 was given, apg-go se the pwLength to the preferred maxLength. With v0.3.1 it will choose a random length between minLength and maxLength instead, same as the original C-lang apg did. For this the minLength has been defaulted to a sane value of 12 (instead of the 8 of the original apg). The default for maxLength stayed at 20. Also the default number of generated passwords has been changed from 1 to 6, to replicate the behaviour of the original apg.
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5 changed files with 81 additions and 38 deletions
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@ -6,8 +6,11 @@
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<component name="ChangeListManager">
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<list default="true" id="fbb0c733-4aa1-4d27-87d5-c7276d8aa613" name="Default Changelist" comment="">
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<change beforePath="$PROJECT_DIR$/.idea/workspace.xml" beforeDir="false" afterPath="$PROJECT_DIR$/.idea/workspace.xml" afterDir="false" />
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<change beforePath="$PROJECT_DIR$/README.md" beforeDir="false" afterPath="$PROJECT_DIR$/README.md" afterDir="false" />
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<change beforePath="$PROJECT_DIR$/buildfiles/arch-linux/PKGBUILD" beforeDir="false" afterPath="$PROJECT_DIR$/buildfiles/arch-linux/PKGBUILD" afterDir="false" />
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<change beforePath="$PROJECT_DIR$/apg.go" beforeDir="false" afterPath="$PROJECT_DIR$/apg.go" afterDir="false" />
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<change beforePath="$PROJECT_DIR$/apg_test.go" beforeDir="false" afterPath="$PROJECT_DIR$/apg_test.go" afterDir="false" />
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<change beforePath="$PROJECT_DIR$/config.go" beforeDir="false" afterPath="$PROJECT_DIR$/config.go" afterDir="false" />
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<change beforePath="$PROJECT_DIR$/go.mod" beforeDir="false" afterPath="$PROJECT_DIR$/go.mod" afterDir="false" />
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<change beforePath="$PROJECT_DIR$/rand.go" beforeDir="false" afterPath="$PROJECT_DIR$/rand.go" afterDir="false" />
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</list>
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<option name="SHOW_DIALOG" value="false" />
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<option name="HIGHLIGHT_CONFLICTS" value="true" />
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@ -49,7 +52,6 @@
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<component name="ProjectViewState">
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<option name="hideEmptyMiddlePackages" value="true" />
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<option name="showLibraryContents" value="true" />
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<option name="showMembers" value="true" />
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<component name="PropertiesComponent">
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<property name="DefaultGoTemplateProperty" value="Go Application" />
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@ -71,15 +73,15 @@
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<recent name="C:\Users\Winni Neessen\go\src\apg.go\test" />
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</key>
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</component>
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<component name="RunManager" selected="Go Test.Test Application">
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<component name="RunManager" selected="Go Build.Run Application (with newstyle params)">
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<configuration name="Run Application (show help text)" type="GoApplicationRunConfiguration" factoryName="Go Application">
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<module name="apg.go" />
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<working_directory value="$PROJECT_DIR$" />
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<parameters value="-h" />
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<kind value="PACKAGE" />
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<filePath value="$PROJECT_DIR$" />
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<package value="github.com/wneessen/apg.go" />
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<package value="github.com/wneessen/apg-go" />
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<directory value="$PROJECT_DIR$" />
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<filePath value="$PROJECT_DIR$" />
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<method v="2" />
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</configuration>
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<configuration name="Run Application (show version string)" type="GoApplicationRunConfiguration" factoryName="Go Application">
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@ -87,9 +89,9 @@
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<working_directory value="$PROJECT_DIR$" />
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<parameters value="-v" />
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<kind value="PACKAGE" />
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<filePath value="$PROJECT_DIR$" />
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<package value="github.com/wneessen/apg.go" />
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<package value="github.com/wneessen/apg-go" />
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<directory value="$PROJECT_DIR$" />
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<filePath value="$PROJECT_DIR$" />
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<method v="2" />
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</configuration>
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<configuration name="Run Application (with excludes)" type="GoApplicationRunConfiguration" factoryName="Go Application">
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@ -97,9 +99,9 @@
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<working_directory value="$PROJECT_DIR$" />
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<parameters value="-m 20 -x 20 -C -E abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ1234567890!]" />
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<kind value="PACKAGE" />
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<filePath value="$PROJECT_DIR$" />
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<package value="github.com/wneessen/apg.go" />
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<package value="github.com/wneessen/apg-go" />
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<directory value="$PROJECT_DIR$" />
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<filePath value="$PROJECT_DIR$" />
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<method v="2" />
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</configuration>
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<configuration name="Run Application (with newstyle params and spelling and multiple pws)" type="GoApplicationRunConfiguration" factoryName="Go Application">
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@ -107,9 +109,9 @@
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<working_directory value="$PROJECT_DIR$" />
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<parameters value="-m 10 -x 10 -M SLNU -l -n 6" />
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<kind value="PACKAGE" />
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<filePath value="$PROJECT_DIR$" />
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<package value="github.com/wneessen/apg.go" />
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<package value="github.com/wneessen/apg-go" />
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<directory value="$PROJECT_DIR$" />
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<filePath value="$PROJECT_DIR$" />
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<method v="2" />
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</configuration>
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<configuration name="Run Application (with newstyle params and spelling)" type="GoApplicationRunConfiguration" factoryName="Go Application">
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@ -117,19 +119,19 @@
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<working_directory value="$PROJECT_DIR$" />
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<parameters value="-m 10 -x 10 -M SLNU -l" />
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<kind value="PACKAGE" />
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<filePath value="$PROJECT_DIR$" />
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<package value="github.com/wneessen/apg.go" />
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<package value="github.com/wneessen/apg-go" />
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<directory value="$PROJECT_DIR$" />
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<filePath value="$PROJECT_DIR$" />
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<method v="2" />
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</configuration>
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<configuration name="Run Application (with newstyle params)" type="GoApplicationRunConfiguration" factoryName="Go Application">
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<module name="apg.go" />
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<working_directory value="$PROJECT_DIR$" />
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<parameters value="-m 20 -x 20 -M slNU" />
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<parameters value="-M slNU" />
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<kind value="PACKAGE" />
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<filePath value="$PROJECT_DIR$" />
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<package value="github.com/wneessen/apg.go" />
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<package value="github.com/wneessen/apg-go" />
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<directory value="$PROJECT_DIR$" />
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<filePath value="$PROJECT_DIR$" />
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<method v="2" />
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</configuration>
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<configuration name="Run Application (with params)" type="GoApplicationRunConfiguration" factoryName="Go Application">
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@ -137,38 +139,38 @@
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<working_directory value="$PROJECT_DIR$" />
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<parameters value="-m 20 -x 20 -C" />
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<kind value="PACKAGE" />
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<filePath value="$PROJECT_DIR$" />
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<package value="github.com/wneessen/apg.go" />
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<package value="github.com/wneessen/apg-go" />
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<directory value="$PROJECT_DIR$" />
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<filePath value="$PROJECT_DIR$" />
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<method v="2" />
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</configuration>
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<configuration name="Run Application" type="GoApplicationRunConfiguration" factoryName="Go Application">
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<module name="apg.go" />
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<working_directory value="$PROJECT_DIR$" />
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<kind value="PACKAGE" />
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<filePath value="$PROJECT_DIR$" />
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<package value="github.com/wneessen/apg.go" />
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<package value="github.com/wneessen/apg-go" />
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<directory value="$PROJECT_DIR$" />
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<filePath value="$PROJECT_DIR$" />
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<method v="2" />
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</configuration>
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<configuration name="Benchmark Application" type="GoTestRunConfiguration" factoryName="Go Test">
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<module name="apg.go" />
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<working_directory value="$PROJECT_DIR$" />
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<framework value="gobench" />
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<kind value="PACKAGE" />
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<package value="github.com/wneessen/apg.go" />
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<package value="github.com/wneessen/apg-go" />
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<directory value="$PROJECT_DIR$" />
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<filePath value="$PROJECT_DIR$" />
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<framework value="gobench" />
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<method v="2" />
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</configuration>
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<configuration name="Test Application" type="GoTestRunConfiguration" factoryName="Go Test">
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<module name="apg.go" />
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<working_directory value="$PROJECT_DIR$" />
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<framework value="gotest" />
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<kind value="PACKAGE" />
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<package value="github.com/wneessen/apg.go" />
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<package value="github.com/wneessen/apg-go" />
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<directory value="$PROJECT_DIR$" />
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<filePath value="$PROJECT_DIR$" />
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<framework value="gotest" />
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<method v="2" />
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</configuration>
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<list>
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@ -85,9 +85,9 @@ $ sudo cp apg /usr/local/bin/apg
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## CLI parameters
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_apg.go_ replicates some of the parameters of the original APG. Some parameters are different though:
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- ```-m <length>```: The minimum length of the password to be generated (Default: 20)
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- ```-m <length>```: The minimum length of the password to be generated (Default: 12)
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- ```-x <length>```: The maximum length of the password to be generated (Default: 20)
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- ```-n <number of passwords>```: The amount of passwords to be generated (Default: 1)
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- ```-n <number of passwords>```: The amount of passwords to be generated (Default: 6)
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- ```-E <list of characters>```: Do not use the specified characters in generated passwords
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- ```-M <[LUNSHClunshc]>```: New style password parameters (upper-case enables, lower-case disables)
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- ```-L```: Use lower-case characters in passwords (Default: on)
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42
apg_test.go
42
apg_test.go
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@ -1,6 +1,8 @@
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package main
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import "testing"
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import (
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"testing"
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)
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var config Config
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@ -51,6 +53,44 @@ func TestGetRandNum(t *testing.T) {
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}
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}
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// Test Pwlength
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func TestGenLength(t *testing.T) {
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testTable := []struct {
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testName string
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minLength int
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maxLength int
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}{
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{"pwLength defaults", DefaultMinLenght, DefaultMaxLenght},
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{"pwLength 0 to 1", 0, 1},
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{"pwLength 1 to 10", 0, 10},
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{"pwLength 10 to 100", 10, 100},
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}
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charRange := getCharRange(&config)
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for _, testCase := range testTable {
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t.Run(testCase.testName, func(t *testing.T) {
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config.minPassLen = testCase.minLength
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config.maxPassLen = testCase.maxLength
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pwLength := getPwLengthFromParams(&config)
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for i := 0; i < 1000; i++ {
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pwString, err := getRandChar(&charRange, pwLength)
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if err != nil {
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t.Errorf("getRandChar returned an error: %q", err)
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}
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retLen := len(pwString)
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if retLen > testCase.maxLength {
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t.Errorf("Generated password length too long. GivenMin %v, GivenMax: %v, Returned length %v",
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testCase.minLength, testCase.maxLength, retLen)
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}
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if retLen < testCase.minLength {
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t.Errorf("Generated password length too short. GivenMin %v, GivenMax: %v, Returned length %v",
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testCase.minLength, testCase.maxLength, retLen)
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}
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}
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})
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}
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}
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// Test getRandChar
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func TestGetRandChar(t *testing.T) {
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t.Run("return_value_is_A_B_or_C", func(t *testing.T) {
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19
config.go
19
config.go
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@ -18,9 +18,9 @@ func parseFlags() Config {
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flag.BoolVar(&config.spellPassword, "l", false, "Spell generated password")
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flag.BoolVar(&config.humanReadable, "H", false, "Generate human-readable passwords")
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flag.BoolVar(&config.showVersion, "v", false, "Show version")
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flag.IntVar(&config.minPassLen, "m", DefaultPwLenght, "Minimum password length")
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flag.IntVar(&config.maxPassLen, "x", DefaultPwLenght, "Maxiumum password length")
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flag.IntVar(&config.numOfPass, "n", 1, "Number of passwords to generate")
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flag.IntVar(&config.minPassLen, "m", DefaultMinLenght, "Minimum password length")
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flag.IntVar(&config.maxPassLen, "x", DefaultMaxLenght, "Maxiumum password length")
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flag.IntVar(&config.numOfPass, "n", 6, "Number of passwords to generate")
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flag.StringVar(&config.excludeChars, "E", "", "Exclude list of characters from generated password")
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flag.StringVar(&config.newStyleModes, "M", "",
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"New style password parameters (higher priority than single parameters)")
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@ -60,15 +60,16 @@ func parseParams(config *Config) {
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// Get the password length from the given cli flags
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func getPwLengthFromParams(config *Config) int {
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pwLength := config.minPassLen
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if pwLength < config.minPassLen {
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pwLength = config.minPassLen
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if config.minPassLen > config.maxPassLen {
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config.maxPassLen = config.minPassLen
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}
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if pwLength > config.maxPassLen {
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pwLength = config.maxPassLen
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lenDiff := config.maxPassLen - config.minPassLen + 1
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randAdd, err := getRandNum(lenDiff)
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if err != nil {
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log.Fatalf("Failed to generated password length: %v", err)
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}
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return pwLength
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return config.minPassLen + randAdd
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}
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// Parse the new style parameters
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2
go.mod
2
go.mod
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module github.com/wneessen/apg.go
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module github.com/wneessen/apg-go
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go 1.16
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