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postmail_demo
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Joaquin 3 years ago
parent 7d44dfe2a5
commit 793a810ceb
Signed by: puly
GPG Key ID: 9E9299CD96C65EC6
10 changed files with 1648 additions and 0 deletions
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  1. 245
      app.js
  2. 1200
      package-lock.json
  3. 20
      package.json
  4. 35
      pmailcli.clean.sh
  5. 47
      pmailcli.fetchmail.sh
  6. 62
      pmailcli.mkindex.sh
  7. 12
      pmailcli.mkuser.sh
  8. 10
      pmailcli.trust.sh
  9. 17
      pmailcli.upload.sh
  10. BIN
      postmail.pdf

245
app.js
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const http = require('http')
const https = require('https')
const express = require('express')
const fs = require('fs')
const url = require('url')
const crypto = require('crypto')
const app = express()
process.on('uncaughtException', (error, origin) => {
console.log('----- Uncaught exception -----')
console.log(error)
console.log('----- Exception origin -----')
console.log(origin)
})
process.on('unhandledRejection', (reason, promise) => {
console.log('----- Unhandled Rejection at -----')
console.log(promise)
console.log('----- Reason -----')
console.log(reason)
})
if(!fs.existsSync('repo')) fs.mkdirSync('repo')
if(!fs.existsSync('repo/admin')) fs.mkdirSync('repo/admin')
if(!fs.existsSync('repo/admin/deposit')) fs.mkdirSync('repo/admin/deposit')
if(!fs.existsSync('repo/admin/pub')) fs.mkdirSync('repo/admin/pub')
if(!fs.existsSync('repo/admin/notices')) fs.mkdirSync('repo/admin/notices')
if(!fs.existsSync('repo/admin/notices/trusted')) fs.mkdirSync('repo/admin/notices/trusted')
if(!fs.existsSync('repo/admin/notices/purgatory')) fs.mkdirSync('repo/admin/notices/purgatory')
if(!fs.existsSync('repo/admin/notices/banlist')) fs.writeFileSync('repo/admin/notices/banlist', '')
if(!fs.existsSync('repo/admin/notices/ipbanlist')) fs.writeFileSync('repo/admin/notices/ipbanlist', '')
if(!fs.existsSync('repo/admin/notices/trustlist')) fs.writeFileSync('repo/admin/notices/trustlist', '')
function inList(str, strlistx){
var arr = strlistx.toString().split('\n')
for(var i = 0; i < arr.length; i++){
if(str === arr[i]){
return 1
}
}
return 0
}
app.get('/postmailping', (request, response) => {
response.writeHead(200)
response.end("postmailpong")
})
app.get('/getinfo', (request, response) => {
//common pub files to use: "bio" - user's bio (text)
// "name" - user's complete (user)name, supports spaces and symbols
// "pgp" - user's public pgp key (armored)
// "pfp" - user's profile picture (in a PNG format)
// "at" - alternate addresses in JSON (email, phone, social media, etc)
// "status" - user's current status
// "site" - website
// "reusme" - resume
var reqfile = "repo/" + request.query.user + "/pub/" + request.query.file
if(fs.existsSync(reqfile)){
response.download(reqfile)
}else{
response.writeHead(404)
response.end()
}
})
app.get('/sendnotice', (request, response) => {
var noticeIsValid = false
if(request.query.user === null || request.query.sender === null || request.query.token === null || request.query.id === null){
response.writeHead(404)
response.end()
}
if(request.query.user.length > 256 || request.query.sender.length > 256 || request.query.token.length > 256 || request.query.id.length > 256){
response.writeHead(404)
response.end()
}
var notice = {
'user': request.query.user,
'sender': request.query.sender,
'token': request.query.token,
'id': request.query.id
}
var userFolder = "repo/" + notice.user + "/"
var purgatoryDir = userFolder + "/notices/purgatory/" + notice.sender
var trustedDir = userFolder + "/notices/trusted/"
var senderUser = notice.sender.split(':')[0]
var senderHost = notice.sender.split(':')[1]
var confReqArgs = "/checkrepo?user=" + senderUser + "&id=" + notice.id + "&token=" + notice.token
var confirmationReqOpts = { //request for sender server to confirm authenticity
hostname: senderHost,
port: 27050,
path: confReqArgs,
method: 'GET',
rejectUnauthorized: false,
requestCert: true,
agent: false
}
var trustlist = fs.readFileSync(userFolder + "/notices/trustlist")
var banlist = fs.readFileSync(userFolder + "/notices/banlist")
var ipbanlist = fs.readFileSync(userFolder + "/notices/ipbanlist")
var confirmationReq = http.get(confirmationReqOpts, (confirmationRes) => {
//Contact presumed sender's server to certify authenticity of message
confirmationRes.on('data', function(chunk){
var d = chunk + "\0"
if(d === "yes!\0"){
console.log("VALID NOTICE" + JSON.stringify(notice))
//if sender confirmed authenticity of mail
noticeIsValid = true
}else{
console.log("INVALID NOTICE" + JSON.stringify(notice))
noticeIsValid = false
response.writeHead(404)
response.end()
return
}
if(noticeIsValid){
if(inList(notice.sender, banlist) || inList(senderHost, ipbanlist)){
//IF BANNED
response.writeHead(200)
response.end("ban")
console.log("USER BANNED, NOTICE NOT RECEIVED")
return //return false confirm, but do not store noticefile
}
if(!inList(notice.sender, trustlist)){
//if not in the trust list
if(!fs.existsSync(purgatoryDir))
fs.mkdirSync(purgatoryDir)
var noticeAmm = fs.readdirSync(purgatoryDir).length
if(noticeAmm > 5){ //if more than 5 mails sent by user end up in purgatory
response.writeHead(200)
response.end('purglim')
console.log("PURGATORY LIMIT REACHED FOR " + notice.sender)
return //return false, but do not store noticefile
}
var fileName = purgatoryDir + "/" + Math.floor(new Date() / 1000) + "~" + notice.sender
fs.writeFileSync(fileName, JSON.stringify(notice))
response.writeHead(200)
response.end("ok")
return
}
if(inList(notice.sender, trustlist)){
//IF TRUSTED
if(!fs.existsSync(trustedDir))
fs.mkdirSync(trustedDir)
var filename = trustedDir + "/" + Math.floor(new Date() / 1000) + "~" + notice.sender
fs.writeFileSync(filename, JSON.stringify(notice))
response.writeHead(200)
response.end("ok")
return
}
}
})
})
console.log("---")
})
app.get('/checkrepo', (request, response) => {
var fileName = "repo/" + request.query.user + "/deposit/" + request.query.id
var token = request.query.token
if(fs.existsSync(fileName)){
var authlist = fs.readFileSync(fileName + "/auth")
if(inList(token, authlist)){
response.writeHead(200)
response.end('yes!')
return
}
}
response.writeHead(200)
response.end('no')
return
})
app.get('/get', (request, response) => {
var fileName = "repo/" + request.query.user + "/deposit/" + request.query.id
var token = request.query.token
if(fs.existsSync(fileName)){
var authlist = fs.readFileSync(fileName + "/auth")
var actFileNameStr = fs.readFileSync(fileName + "/meta")
var actFileName = JSON.parse(actFileNameStr).filename
var persistStatus = JSON.parse(actFileNameStr).persist
if(inList(token, authlist)){
console.log("serving file " + actFileName + "\n")
response.download(fileName + "/" + actFileName)
if(persistStatus !== 'true'){
var newAuthlist = authlist.toString().replace(token + '\n', '')
fs.writeFileSync(fileName + "/auth", newAuthlist)
if(newAuthlist.replace('\n', '') === "")
console.log("FILE " + request.query.id + " HAS BEEN DELIVERED TO EVERYONE")
}
return
}
}
response.writeHead(200)
response.end('no')
return
})
const server = http.createServer(app)
server.listen(27050)

1200
package-lock.json generated
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20
package.json
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{
"name": "postmail",
"version": "1.0.0",
"description": "Notice-Based Simple Email Protocol",
"main": "app.js",
"scripts": {
"test": "echo \"Error: no test specified\" && exit 1"
},
"author": "Puly4",
"license": "0BSD",
"dependencies": {
"crypto": "^1.0.1",
"express": "^4.18.2",
"express-session": "^1.17.3",
"fs": "^0.0.1-security",
"http": "^0.0.1-security",
"https": "^1.0.0",
"url": "^0.11.0"
}
}

35
pmailcli.clean.sh
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#!/bin/bash
USERNAMEx=""
read -p "User LOGIN: " USERNAMEx
DEPOSIT="repo/$USERNAMEx/deposit/"
for file in $(ls $DEPOSIT)
do
echo -ne "\n\n\n\n"
echo "---> Checking $file"
cat $DEPOSIT$file/meta | jq '.filename'
cat $DEPOSIT$file/meta | jq '.time' -r | date -d -
cat $DEPOSIT$file/meta | jq '.description'
echo -ne '\n'
if [[ $(cat $DEPOSIT$file/auth) == '' ]];
then
echo " :: FILE HAS BEEN SENT TO EVERYONE!"
ans=""
read -p " Delete File? [rm -rf $DEPOSIT$file] (y/n)" ans
if [[ $ans == 'y' ]];
then
rm -rf $DEPOSIT$file
fi
else
echo " :: File still pending - Needs to be received by ::"
for line in $(cat $DEPOSIT$file/auth)
do
PERSON=$(echo $line | cut -d ':' -f 1-2)
echo " -> $PERSON"
done
fi
done

47
pmailcli.fetchmail.sh
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#!/bin/bash
USERNAMEx=""
read -p "Username LOGIN: " USERNAMEx
NOTICEFOLDER="repo/${USERNAMEx}/notices/trusted/"
MAILFOLDER="repo/${USERNAMEx}/mail/new/"
for file in $(ls ${NOTICEFOLDER})
do
mkdir ${MAILFOLDER}$file
mv ${NOTICEFOLDER}$file ${MAILFOLDER}$file/$file
NOTICEFILE="${MAILFOLDER}$file/$file"
MSGID=$(cat $NOTICEFILE | jq '.id' -r)
SENDERstr=$(cat $NOTICEFILE | jq '.sender' -r)
TOKEN=$(cat $NOTICEFILE | jq '.token' -r)
USERu=$(echo $SENDERstr | cut -d ':' -f 1)
SRVu=$(echo $SENDERstr | cut -d ':' -f 2)
echo -ne "\n\n---> NEW MAIL BY $SENDER"
#MAKE FETCH REQ
curl -q http://$SRVu:27050/get\?id\=${MSGID}\&user\=${USERu}\&token\=${TOKEN} > ${MAILFOLDER}$file/index.pmail
echo "-> curl http://$SRVu:27050/get\?id\=${MSGID}\&user\=${USERu}\&token\=${TOKEN}"
PMAILFILE="${MAILFOLDER}$file/index.pmail"
MAILTITLE=$(cat $PMAILFILE | jq '.title' -r)
echo -ne $MAILTITLE > ${MAILFOLDER}$file/MESSAGE
echo -ne "\n----------------------\n" >> ${MAILFOLDER}$file/MESSAGE
echo -ne "(${SENDERstr})\n\n" >> ${MAILFOLDER}$file/MESSAGE
TEXTID=$(cat $PMAILFILE | jq '.message' -r)
curl -q http://$SRVu:27050/get\?id\=${TEXTID}\&user\=${USERu}\&token\=${TOKEN} >> ${MAILFOLDER}$file/MESSAGE
echo "-> curl http://$SRVu:27050/get\?id\=${TEXTID}\&user\=${USERu}\&token\=${TOKEN}"
echo "MESSAGE DOWNLOADED SUCCESFULLY"
ATTS=$(cat ${MAILFOLDER}$file/index.pmail | jq '.attachements')
echo $ATTS > ${MAILFOLDER}$file/ATTACHEMENTS
echo -ne "---------------RECEIVED MESSAGE SUCESFULLY----------------\n\n\n\n\n\n\n\n\n\n"
less ${MAILFOLDER}$file/MESSAGE
done

62
pmailcli.mkindex.sh
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#!/bin/bash
INDEXFILE=""
ATTACHMENTS=""
TITLE=""
USERNAMEx=""
SRVx=""
DESTu=""
read -p "Username LOGIN: " USERNAMEx
read -p "Server LOGIN: " SRVx
read -p "Send to (user:server.tld) -> " DESTu
USERu=$(echo $DESTu | cut -f 1 -d ':')
SRVu=$(echo $DESTu | cut -f 2 -d ':')
echo "Generating Token..."
TOKEN=$(cat /dev/urandom | head -c 100 | sha256sum | head -c 20)
TOKEN="${USERu}:${SRVu}:${TOKEN}"
read -p "Mail Title: " TITLE
echo "Write Mail Body Here" > buf.txt
nano buf.txt
mv buf.txt message
MESSAGE="$(bash pmailcli.upload.sh $USERNAMEx ./message $TOKEN)"
ATTACHEMENTS="{"
for file in $@
do
echo $file
item="$(bash pmailcli.upload.sh $USERNAMEx $file $TOKEN)"
ATTACHEMENTS="$ATTACHEMENTS$item,"
done
ATTACHEMENTS=${ATTACHEMENTS::-1}
ATTACHEMENTS="$ATTACHEMENTS}"
if [[ $ATTACHEMENTS == "}" ]];
then
ATTACHEMENTS='""'
fi
INDEXFILE="{\"title\":\"$TITLE\",$MESSAGE,\"attachements\":$ATTACHEMENTS}"
echo $INDEXFILE > index.pmail
bash pmailcli.upload.sh $USERNAMEx index.pmail $TOKEN
MSGID=$(sha256sum index.pmail | cut -d ' ' -f 1)
rm index.pmail
rm message
echo -ne "\n\n\n+++++ RECEIVER'S CONCLUSION +++++\n\n --> "
curl http://$SRVu:27050/sendnotice\?id\=${MSGID}\&token\=${TOKEN}\&user\=${USERu}\&sender\=${USERNAMEx}:${SRVx}
echo -ne "\n\n+++++ END +++++\n\n"
echo "curl http://$SRVu:27050/sendnotice\?id\=${MSGID}\&token\=${TOKEN}\&user\=${USERu}\&sender\=${USERNAMEx}:${SRVx}"

12
pmailcli.mkuser.sh
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#!/bin/bash
USER=""
read -p "Username: " USER
install -d repo/$USER/deposit
install -d repo/$USER/pub
install -d repo/$USER/notices/trusted
install -d repo/$USER/notices/purgatory
install -d repo/$USER/mail/new
install -d repo/$USER/mail/old
touch repo/$USER/notices/banlist
touch repo/$USER/notices/ipbanlist
touch repo/$USER/notices/trustlist

10
pmailcli.trust.sh
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#!/bin/bash
USER=""
ME=""
read -p "User LOGIN: " ME
read -p "User to TrustList (user:srv.tld) -> " USER
echo $USER >> repo/$ME/notices/trustlist
mv repo/$ME/notices/purgatory/$USER/* repo/$ME/notices/trusted/.

17
pmailcli.upload.sh
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#!/bin/bash
CHECKSUM=$(sha256sum $2 | cut -f 1 -d " ")
FILENAME=$(basename $2)
DESC=""
TIME=$(date +%s)
read -p "Short file description ($FILENAME): " DESC
mkdir repo/$1/deposit/$CHECKSUM
cp $2 repo/$1/deposit/$CHECKSUM/$FILENAME
echo "{\"filename\":\"$FILENAME\",\"persist\":\"false\",\"description\":\"$DESC\",\"time\":\"$TIME\"}" > repo/$1/deposit/$CHECKSUM/meta
echo $3 >> repo/$1/deposit/$CHECKSUM/auth
echo "\"$FILENAME\":\"$CHECKSUM\""

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