3 files changed, 74 insertions, 1 deletions

diff --git a/snippets/snippets b/snippets/snippets
deleted file mode 120000
index a05fd8e..0000000
--- a/snippets/snippets
+++ /dev/null
@@ -1 +0,0 @@
-/home/pham/helper/snippets
\ No newline at end of file
diff --git a/snippets/use_curl_send_mail b/snippets/use_curl_send_mail
new file mode 100644
index 0000000..70eeb7c
--- /dev/null
+++ b/snippets/use_curl_send_mail
@@ -0,0 +1,38 @@
+#! /usr/bin/env bash
+
+# User input
+sender=typebrook@gmail.com
+receiver=typebrook@gmail.com
+gapp=$(pass google/imap_for_typebrook)
+sub="$(date) test mail from curl"
+body="$(echo -e 'just\na\ntest\nmail')"
+
+# check for provided attachment file as a positional parameter
+# -z indicating an empty positional parameter
+# attachment doesn't exist condition
+if [ -z "$1" ]; then
+
+        # curl command for accessing the smtp server
+
+        curl -s --url 'smtps://smtp.gmail.com:465' --ssl-reqd \
+                --mail-from $sender \
+                --mail-rcpt $receiver --user $sender:$gapp \
+                -T <(echo -e "From: ${sender}
+To: ${receiver}
+Subject: ${sub}
+
+ ${body}")
+
+# attachment exists condition
+else
+        file="$1" # set file as the 1st positional parameter
+
+        # MIME type for multiple type of input file extensions
+        MIMEType=$(file --mime-type "$file" | sed 's/.*: //')
+        curl -s --url 'smtps://smtp.gmail.com:465' --ssl-reqd \
+                --mail-from $sender \
+                --mail-rcpt $receiver --user $sender:$gapp \
+                -H "Subject: $sub" -H "From: $sender" -H "To: $receiver" -F \
+                '=(;type=multipart/mixed' -F "=$body;type=text/plain" -F \
+                "file=@$file;type=$MIMEType;encoder=base64" -F '=)'
+fi
diff --git a/snippets/use_openssl_send_mail b/snippets/use_openssl_send_mail
new file mode 100644
index 0000000..fabaca3
--- /dev/null
+++ b/snippets/use_openssl_send_mail
@@ -0,0 +1,36 @@
+#!/bin/bash
+
+# ref: https://stackoverflow.com/questions/9998710/is-it-possible-to-send-mails-by-bash-script-via-smtp
+# Use "host -t mx host" to find out mail server
+
+set -e
+
+MAIL_SERVER=smtp.gmail.com
+PORT=465
+MAIL_FROM=typebrook@gmail.com
+RCPT_TO=typebrook@gmail.com
+
+send_message_line_by_line() {
+        while read line; do
+                echo $line >/dev/tty
+                echo $line
+                sleep 1
+        done | openssl s_client -connect $MAIL_SERVER:$PORT -crlf
+}
+
+# 1. openssl do RENEGOTIATING when input starts with R, so use "rcpt to:" instead of "RCPT TO:"
+# 2. End mail with an empty line, and followed by '.' and 'QUIT'
+cat <<MAILEND | send_message_line_by_line
+HELO $MAIL_SERVER
+AUTH LOGIN
+$(echo $MAIL_FROM | base64)
+$(pass google/imap_for_typebrook | base64)
+MAIL FROM: <$MAIL_FROM>
+rcpt to: <$RCPT_TO>
+DATA
+Subject: $(date) test mail from bash
+Another test mail
+
+.
+QUIT
+MAILEND