| 1 | #!/usr/bin/env bash |
| 2 | # Desc: Runs gpg --verify on all .asc, .gpg, and .sig files in specified directory. |
| 3 | # Version: 0.0.1 |
| 4 | # Depends: GNU parallel 20210822 |
| 5 | # Assumes: File names do not contain newlines. |
| 6 | |
| 7 | declare -Ag appRollCall # Associative array for storing app status |
| 8 | declare -Ag fileRollCall # Associative array for storing file status |
| 9 | declare -Ag dirRollCall # Associative array for storing dir status |
| 10 | find_pat_regex=".+\(sig\|asc\|gpg\)$"; |
| 11 | find_depth="10"; |
| 12 | |
| 13 | yell() { echo "$0: $*" >&2; } # print script path and all args to stderr |
| 14 | die() { yell "$*"; exit 111; } # same as yell() but non-zero exit status |
| 15 | must() { "$@" || die "cannot $*"; } # runs args as command, reports args if command fails |
| 16 | checkapp() { |
| 17 | # Desc: If arg is a command, save result in assoc array 'appRollCall' |
| 18 | # Usage: checkapp arg1 arg2 arg3 ... |
| 19 | # Version: 0.1.1 |
| 20 | # Input: global assoc. array 'appRollCall' |
| 21 | # Output: adds/updates key(value) to global assoc array 'appRollCall' |
| 22 | # Depends: bash 5.0.3 |
| 23 | local returnState |
| 24 | |
| 25 | #===Process Args=== |
| 26 | for arg in "$@"; do |
| 27 | if command -v "$arg" 1>/dev/null 2>&1; then # Check if arg is a valid command |
| 28 | appRollCall[$arg]="true"; |
| 29 | if ! [ "$returnState" = "false" ]; then returnState="true"; fi; |
| 30 | else |
| 31 | appRollCall[$arg]="false"; returnState="false"; |
| 32 | fi; |
| 33 | done; |
| 34 | |
| 35 | #===Determine function return code=== |
| 36 | if [ "$returnState" = "true" ]; then |
| 37 | return 0; |
| 38 | else |
| 39 | return 1; |
| 40 | fi; |
| 41 | } # Check that app exists |
| 42 | checkfile() { |
| 43 | # Desc: If arg is a file path, save result in assoc array 'fileRollCall' |
| 44 | # Usage: checkfile arg1 arg2 arg3 ... |
| 45 | # Version: 0.1.2 |
| 46 | # Input: global assoc. array 'fileRollCall' |
| 47 | # Output: adds/updates key(value) to global assoc array 'fileRollCall'; |
| 48 | # Output: returns 0 if app found, 1 otherwise |
| 49 | # Depends: bash 5.0.3 |
| 50 | local returnState |
| 51 | |
| 52 | #===Process Args=== |
| 53 | for arg in "$@"; do |
| 54 | if [ -f "$arg" ]; then |
| 55 | fileRollCall["$arg"]="true"; |
| 56 | if ! [ "$returnState" = "false" ]; then returnState="true"; fi; |
| 57 | elif [ -z "$arg" ]; then |
| 58 | fileRollCall["(no name)"]="false"; returnState="false"; |
| 59 | else |
| 60 | fileRollCall["$arg"]="false"; returnState="false"; |
| 61 | fi; |
| 62 | done; |
| 63 | |
| 64 | #===Determine function return code=== |
| 65 | if [ "$returnState" = "true" ]; then |
| 66 | return 0; |
| 67 | else |
| 68 | return 1; |
| 69 | fi; |
| 70 | } # Check that file exists |
| 71 | checkdir() { |
| 72 | # Desc: If arg is a dir path, save result in assoc array 'dirRollCall' |
| 73 | # Usage: checkdir arg1 arg2 arg3 ... |
| 74 | # Version 0.1.2 |
| 75 | # Input: global assoc. array 'dirRollCall' |
| 76 | # Output: adds/updates key(value) to global assoc array 'dirRollCall'; |
| 77 | # Output: returns 0 if all args are dirs; 1 otherwise |
| 78 | # Depends: Bash 5.0.3 |
| 79 | local returnState |
| 80 | |
| 81 | #===Process Args=== |
| 82 | for arg in "$@"; do |
| 83 | if [ -z "$arg" ]; then |
| 84 | dirRollCall["(Unspecified Dirname(s))"]="false"; returnState="false"; |
| 85 | elif [ -d "$arg" ]; then |
| 86 | dirRollCall["$arg"]="true"; |
| 87 | if ! [ "$returnState" = "false" ]; then returnState="true"; fi |
| 88 | else |
| 89 | dirRollCall["$arg"]="false"; returnState="false"; |
| 90 | fi |
| 91 | done |
| 92 | |
| 93 | #===Determine function return code=== |
| 94 | if [ "$returnState" = "true" ]; then |
| 95 | return 0; |
| 96 | else |
| 97 | return 1; |
| 98 | fi |
| 99 | } # Check that dir exists |
| 100 | displayMissing() { |
| 101 | # Desc: Displays missing apps, files, and dirs |
| 102 | # Usage: displayMissing |
| 103 | # Version 1.0.0 |
| 104 | # Input: associative arrays: appRollCall, fileRollCall, dirRollCall |
| 105 | # Output: stderr: messages indicating missing apps, file, or dirs |
| 106 | # Output: returns exit code 0 if nothing missing; 1 otherwise |
| 107 | # Depends: bash 5, checkAppFileDir() |
| 108 | local missingApps value appMissing missingFiles fileMissing |
| 109 | local missingDirs dirMissing |
| 110 | |
| 111 | #==BEGIN Display errors== |
| 112 | #===BEGIN Display Missing Apps=== |
| 113 | missingApps="Missing apps :"; |
| 114 | #for key in "${!appRollCall[@]}"; do echo "DEBUG:$key => ${appRollCall[$key]}"; done |
| 115 | for key in "${!appRollCall[@]}"; do |
| 116 | value="${appRollCall[$key]}"; |
| 117 | if [ "$value" = "false" ]; then |
| 118 | #echo "DEBUG:Missing apps: $key => $value"; |
| 119 | missingApps="$missingApps""$key "; |
| 120 | appMissing="true"; |
| 121 | fi; |
| 122 | done; |
| 123 | if [ "$appMissing" = "true" ]; then # Only indicate if an app is missing. |
| 124 | echo "$missingApps" 1>&2; |
| 125 | fi; |
| 126 | unset value; |
| 127 | #===END Display Missing Apps=== |
| 128 | |
| 129 | #===BEGIN Display Missing Files=== |
| 130 | missingFiles="Missing files:"; |
| 131 | #for key in "${!fileRollCall[@]}"; do echo "DEBUG:$key => ${fileRollCall[$key]}"; done |
| 132 | for key in "${!fileRollCall[@]}"; do |
| 133 | value="${fileRollCall[$key]}"; |
| 134 | if [ "$value" = "false" ]; then |
| 135 | #echo "DEBUG:Missing files: $key => $value"; |
| 136 | missingFiles="$missingFiles""$key "; |
| 137 | fileMissing="true"; |
| 138 | fi; |
| 139 | done; |
| 140 | if [ "$fileMissing" = "true" ]; then # Only indicate if an app is missing. |
| 141 | echo "$missingFiles" 1>&2; |
| 142 | fi; |
| 143 | unset value; |
| 144 | #===END Display Missing Files=== |
| 145 | |
| 146 | #===BEGIN Display Missing Directories=== |
| 147 | missingDirs="Missing dirs:"; |
| 148 | #for key in "${!dirRollCall[@]}"; do echo "DEBUG:$key => ${dirRollCall[$key]}"; done |
| 149 | for key in "${!dirRollCall[@]}"; do |
| 150 | value="${dirRollCall[$key]}"; |
| 151 | if [ "$value" = "false" ]; then |
| 152 | #echo "DEBUG:Missing dirs: $key => $value"; |
| 153 | missingDirs="$missingDirs""$key "; |
| 154 | dirMissing="true"; |
| 155 | fi; |
| 156 | done; |
| 157 | if [ "$dirMissing" = "true" ]; then # Only indicate if an dir is missing. |
| 158 | echo "$missingDirs" 1>&2; |
| 159 | fi; |
| 160 | unset value; |
| 161 | #===END Display Missing Directories=== |
| 162 | |
| 163 | #==END Display errors== |
| 164 | #==BEGIN Determine function return code=== |
| 165 | if [ "$appMissing" == "true" ] || [ "$fileMissing" == "true" ] || [ "$dirMissing" == "true" ]; then |
| 166 | return 1; |
| 167 | else |
| 168 | return 0; |
| 169 | fi |
| 170 | #==END Determine function return code=== |
| 171 | } # Display missing apps, files, dirs |
| 172 | verify_file() { |
| 173 | # input: arg1: file path |
| 174 | path_in="$1" |
| 175 | |
| 176 | # Verify sig file |
| 177 | if gpg --verify "$path_in" 1>&2 2>/dev/random; then |
| 178 | printf "STATUS:Good sig for:%s\n" "$path_in"; |
| 179 | else |
| 180 | printf "STATUS:Bad sig for :%s\n" "$path_in"; |
| 181 | fi; |
| 182 | }; # verfiies one gpg file |
| 183 | main() { |
| 184 | # Check args |
| 185 | ## Note: Assume a single arg that is a dir |
| 186 | if [[ ! $# -eq 1 ]]; then die "FATAL:Incorrect number of args (must be 1):$#"; fi; |
| 187 | if [[ ! -d "$1" ]]; then die "FATAL:Not a dir:$1"; fi; |
| 188 | |
| 189 | # Check apps |
| 190 | if ! checkapp find gpg parallel; then displayMissing; printf "FATAL:Missing apps."; exit 1; fi; |
| 191 | |
| 192 | # Export bash functions (for GNU parallel) |
| 193 | export -f yell die must verify_file; |
| 194 | |
| 195 | # Generate file list |
| 196 | list_paths="$( find "$1" -maxdepth "$find_depth" -type f -iregex "$find_pat_regex" )"; |
| 197 | |
| 198 | # Verify files |
| 199 | echo "$list_paths" | parallel --group verify_file '{}'; |
| 200 | }; # main program |
| 201 | |
| 202 | main "$@"; |
| 203 | |
| 204 | exit 0; |
| 205 | |
| 206 | # find "$1" -maxdepth "$find_depth" -type f -iregex "find_pat_regex" | parallel if gpg --verify '{}' 2>/dev/random \; then echo "STATUS:Good sig:" '{}' \; else echo "STATUS:Bad sig :" '{}' \; fi\; |