In a previous posting, I had listing all of the applications you would need to decrypt and encrypt email messages in Apple Mail. However, I did find that after moving up to Mac OS X 10.5.6, I was unable to decrypt messages delivered from certain mail servers. I could decrypt the messages by hand, but this was a real pain to do over and over.<\/p>\n
So this is a perfect opportunity to leverage AppleScript! <\/p>\n
The script on this page which was actually inspired from other scripts in the “AppleScript Examples” folder in the Applications folder. The script gets the contents of the currently selected email message and creates a temp file in the temp folder path. The script then uses the Terminal.app application to invoke gpg which is installed when you install the “GNU Privacy Guard” application, and then displays the message in TextEdit. Not an elegant solution, but it gets the job done.<\/p>\n
\n\nset passphrase to \"MySuperSecretPassphrase\"\nset randNumber to ((random number) as string)\nset tempPath to ((path to temporary items from user domain) as string)\n\nset encryptedFP to tempPath & \"EncryptedMessage\" & randNumber & \".eml\"\nset decryptedFP to tempPath & \"DecyptedMessage\" & randNumber & \".txt\"\n\ntell application \"Mail\"\n set selectedMessages to selection\n if (count of selectedMessages) is equal to 0 then\n display alert \"No Messages Selected\" message \"Select the message you want to get the raw source of before running this script\"\n else\n set theMessage to item 1 of selectedMessages\n set theSource to source of theMessage\n set theFileID to open for access file encryptedFP with write permission\n set eof of theFileID to 0 -- in case there happens to be a temporary file with this name already, wipe it out\n\n write theSource to theFileID\n close access theFileID\n set encryptedFP to POSIX path of encryptedFP -- convert colons to forwardslashes\n set decryptedFP to POSIX path of decryptedFP\n end if\nend tell\n\ntell application \"Terminal\"\n activate\n with timeout of 1800 seconds\n do script with command \"echo '\" & passphrase & \"' | gpg --passphrase-fd 0 -v --output \" & decryptedFP & \" --decrypt \" & encryptedFP\n end timeout\nend tell\n\ndelay (1) -- Let's give the Terminal.app some time to work\n\ntell application \"Finder\"\n set fileToOpen to tempPath & \"DecyptedMessage\" & randNumber & \".txt\"\n if exists file fileToOpen then\n tell application \"TextEdit\"\n activate\n open fileToOpen\n end tell\n\n tell application \"Terminal\"\n quit\n end tell\n else\n display dialog \"Couldn't find file \" & decryptedFP\n open folder tempPath\n end if\nend tell\n<\/pre>\nIf you happen upon this page because you had the same problems that I did, then I hope this script helps you out.<\/p>\n","protected":false},"excerpt":{"rendered":"
In a previous posting, I had listing all of the applications you would need to decrypt and encrypt email messages in Apple Mail. However, I did find that after moving up to Mac OS X 10.5.6, I was unable to decrypt messages delivered from certain mail servers. I could decrypt the messages by hand, but … Read more<\/a><\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[3],"tags":[64,67,185,220,350],"class_list":["post-93","post","type-post","status-publish","format-standard","hentry","category-coding","tag-apple-mail","tag-applescript","tag-encryption","tag-gpg","tag-pgp"],"_links":{"self":[{"href":"https:\/\/jaimerios.com\/index.php?rest_route=\/wp\/v2\/posts\/93","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/jaimerios.com\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/jaimerios.com\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/jaimerios.com\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/jaimerios.com\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=93"}],"version-history":[{"count":0,"href":"https:\/\/jaimerios.com\/index.php?rest_route=\/wp\/v2\/posts\/93\/revisions"}],"wp:attachment":[{"href":"https:\/\/jaimerios.com\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=93"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/jaimerios.com\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=93"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/jaimerios.com\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=93"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}