treehouses message slack read(fixes #2004)

README.md

@@ -166,7 +166,8 @@ resolution <cea|dmt [modes]>              sets the screen resolution
 system [cpu|ram|disk|volt|temperature]    display real system informations
 message gitter <apitoken|authorize>       sets api/channel info in config file and sends/recieves message
                <send|show|read|mark>
-        slack <apitoken|send|channels>    sets api/channel info in config file and sends message
+        slack <apitoken|send|channels>    sets api/channel info in config file, shows channels and sends message
+              <read>                      read new messages
 shutdown [now|in|force]                   shutdown the system
 ```
 

_treehouses

@@ -238,6 +238,7 @@ treehouses message gitter mark
 treehouses message slack apitoken
 treehouses message slack channels
 treehouses message slack send
+treehouses message slack read
 treehouses networkmode
 treehouses networkmode info
 treehouses ntp internet

modules/help.sh

@@ -142,7 +142,8 @@ resolution <cea|dmt [modes]>              sets the screen resolution
 system [cpu|ram|disk|volt|temperature]    display real system informations
 message gitter <apitoken|authorize>       sets api/channel info in config file and sends/recieves message
                <send|show|read|mark>
-        slack <apitoken|send|channels>    sets api/channel info in config file and sends message
+        slack <apitoken|channels|send>    sets api/channel info in config file, shows channels and sends message
+              <read>                      reads new messages
 shutdown [now|in|force]                   shutdown the system
 EOF
   echo "$helpdefault"

modules/message.sh

@@ -232,7 +232,7 @@ function message {
             echo "To get an authorized access token"
             echo ""
             echo "Navigate to https://api.slack.com/apps and create an APP. Provide a name for the APP and select the \"Development Slack Workspace (eg : Open Learning Exchange)\" from the drop down list"
-            echo "Go to \"OAuth & Permission\" under \"features \" and select the scope under \"User Token Scopes\" and add \"chat:write\" for the APP from the drop down list"
+            echo "Go to \"OAuth & Permission\", select the scope from \"User Token Scopes\" and add \"chat:write\", \"channel:read\", \"channel:history\", \"group:read\" and \"users.read\" for the APP from the drop down list"
             echo "Then install APP to the workspace and click the allow button to give permissions in the redirected link and then you will get the \"OAuth access token\""
             echo "Run $BASENAME message slack apitoken <oauth access token>"
           fi
@@ -266,6 +266,62 @@ function message {
             log_comment_and_exit1 "Error:You do not have an authorized access token" "To get access token, run $BASENAME message slack apitoken"
           fi
           ;;
+        read)
+          channel=$3
+          function check_channel {
+            channel_list=$(curl -s -F token=$access_token https://slack.com/api/conversations.list)
+            channel_list=($(echo $channel_list | python -m json.tool | jq '.channels[].id' | tr -d '"'))
+            for i in "${channel_list[@]}"; do
+              if [ $i == $1 ]; then
+                return 0
+                break
+              fi
+            done
+            return 1
+          }
+          if check_apitoken slack; then
+            if [[ $channel == "" ]]; then
+              log_comment_and_exit1 "ERROR: Group information is missing" "usage: $BASENAME message slack read <group>"
+            elif ! check_channel $channel; then
+              log_and_exit1 "invalid channel ID"
+            else
+              channel_info=$(curl -s -F token=$access_token -F channel=$channel https://slack.com/api/conversations.info)
+              last_read=$(echo $channel_info | python -m json.tool | jq '.channel.last_read' | tr -d '"')
+              channel_history=$(curl -s -F token=$access_token -F channel=$channel https://slack.com/api/conversations.history)
+              time=($(echo $channel_history | python -m json.tool | jq '.messages[].ts' 2> /dev/null | tr -d '"'))
+              unread_time=()
+              for i in "${time[@]}"; do
+                if [ $last_read == $i ]; then
+                  break
+                else
+                  unread_time+=($i)
+                fi
+              done
+              unread_time=($(printf '%s\n' "${unread_time[@]}" | tac | tr '\n' ' '))
+              if [ ${#unread_time[@]} -eq 0 ]; then
+                echo "You have no unread messages at the moment"
+              else
+                for i in "${unread_time[@]}"; do
+                  msg_info=$(curl -s -F token=$access_token -F channel=$channel -F latest=$i -F limit=1 -F inclusive=true https://slack.com/api/conversations.history)
+                  curl -s -F token=$access_token -F channel=$channel -F ts=$i https://slack.com/api/conversations.mark > "$LOGFILE"
+                  msg=$(echo $msg_info | python -m json.tool | jq '.messages[].text' | tr -d '"')
+                  userid=$(echo $msg_info | python -m json.tool | jq '.messages[].user' | tr -d '"')
+                  name_info=$(curl -s -F token=$access_token -F user=$userid -F latest=$i https://slack.com/api/users.info)
+                  name=$(echo $name_info | python -m json.tool | jq '.user.profile.real_name' | tr -d '"')
+                  curl -s -F token=$access_token -F channel=$channel -F ts=$i https://slack.com/api/conversations.mark > "$LOGFILE"
+                  time_info=$(date -d @$i)
+                  date=$(echo ${time_info} | cut -d " " -f1-3)
+                  year=$(echo ${time_info} | cut -d " " -f6)
+                  send_time=$(echo ${time_info} | cut -d " " -f4)
+                  echo "Date: $date $year"
+                  echo "Time: $send_time"
+                  echo "From: $name"
+                  echo "Message: $msg"
+                done
+              fi
+            fi
+          fi
+          ;;
         *)
           log_help_and_exit1 "Error: This command does not exist" message
       esac
@@ -315,4 +371,7 @@ function message_help {
   echo "  $BASENAME message slack send \"channel_name or channel ID\" \"Hi, you are very awesome\""
   echo "     Sends a message to a slack channel using channel name, eg, channel: #channel_name"
   echo
+  echo "  $BASENAME message slack read \"channel ID\""
+  echo "     Reads messages from a slack channel using channelID"
+  echo
 }

package.json

@@ -1,6 +1,6 @@
 {
   "name": "@treehouses/cli",
-  "version": "1.24.83",
+  "version": "1.24.84",
   "remote": "4000",
   "description": "Thin command-line interface for Raspberry Pi low level configuration.",
   "main": "cli.sh",