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initial commit: speaks SMTP and accepts email thats it.
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| // | ||
| // A Simple SMTP server to take email attachments and post them to the web | ||
| // The basic server is running and accepting connections | ||
| // It doesn't understand much yet, but can carry on a conversation | ||
| // with other SMTP Servers | ||
| // | ||
| // This code has sharp edges beware, and is heavily in production | ||
| // you can contact me with comments riegel@clearimageonline.com | ||
| // | ||
| // | ||
| // | ||
| // | ||
| // Copyright (c) 2010 Terry Riegel | ||
| // | ||
| // Permission is hereby granted, free of charge, to any person obtaining a copy | ||
| // of this software and associated documentation files (the "Software"), to deal | ||
| // in the Software without restriction, including without limitation the rights | ||
| // to use, copy, modify, merge, publish, distribute, sublicense, and/or sell | ||
| // copies of the Software, and to permit persons to whom the Software is | ||
| // furnished to do so, subject to the following conditions: | ||
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| // The above copyright notice and this permission notice shall be included in | ||
| // all copies or substantial portions of the Software. | ||
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| // THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR | ||
| // IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, | ||
| // FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE | ||
| // AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER | ||
| // LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, | ||
| // OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN | ||
| // THE SOFTWARE. | ||
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| console.log('Clear Image Photo Emailer'); | ||
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| String.prototype.left = function (n) { | ||
| if (n <= 0) {return "";} | ||
| if (n > String(this).length) {return this;} | ||
| return String(this).substring(0,n); | ||
| } | ||
| String.prototype.right = function(n) { | ||
| if (n <= 0) {return "";} | ||
| if (n > String(this).length) {return this;} | ||
| return this.substr(this.length-n) ; | ||
| } | ||
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| var net = require('net'); | ||
| var server = net.createServer( | ||
| function (stream) { | ||
| stream.setEncoding('utf8'); | ||
| stream.out=function(a){stream.write(a+'\r\n');console.info('>'+a);} | ||
| stream.on('connect', | ||
| function () { | ||
| stream.out('220 SMTP to HTTP Photo Emailer'); | ||
| stream.state='welcome'; | ||
| } | ||
| ); | ||
| stream.on('data', | ||
| function (data) { | ||
| // the incoming data may be multiple lines, not necessarily a single line at a time | ||
| // this code assumes only one line at a time, so we spilt data initially then loop through it | ||
| // The only reason to loop through it would be to replace any .. by itself on a line with a . | ||
| // This seems like an edge case that may be ok if not implemented, and it would save the overhead | ||
| // of going through each line of the body. | ||
| // | ||
| // Once I add code to parse the multi-part mime then I suppose I will have to traverse line by line | ||
| // | ||
| dataArray=data.split('\r\n'); | ||
| var i=0; | ||
| for(i=0; i<dataArray.length-1; i=i+1){ | ||
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| console.info('#'+dataArray[i].trim()); | ||
| if (stream.state=='data'){ | ||
| if(dataArray[i].trim()=='.'){stream.out('250 Ok, dont know what to do with it'); stream.state='welcome';} | ||
| // Ok body line recieved send it along :) | ||
| // code to save to disk goes here hmm async I suppose | ||
| // body line end | ||
| } else{ | ||
| data=dataArray[i].trim(); | ||
| var cmd=dataArray[i].left(4).toUpperCase(); | ||
| var touch=false; | ||
| if(cmd == 'HELO'){stream.out('250 mailer.youbelong.net'); touch=true;} | ||
| if(cmd == 'MAIL' && dataArray[i].left(10).toUpperCase() == 'MAIL FROM:'){stream.out('250 MAIL...I hope thats right :)'); touch=true;} | ||
| if(cmd == 'RCPT' && dataArray[i].left(8).toUpperCase() == 'RCPT TO:' ){stream.out('250 RCPT...I hope thats right :)'); touch=true;} | ||
| if(cmd == 'DATA'){stream.state='data'; stream.out('354 Enter mail, end with "." on a line by itself'); touch=true;} | ||
| if(cmd == 'NOOP'){stream.out('250 OK'); touch=true;} | ||
| if(cmd == 'QUIT'){stream.out('221 Bye'); stream.destroy(); touch=true;} | ||
| if(cmd == 'RSET'){stream.out('250 Reset OK'); touch=true;} | ||
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| if(cmd == 'HELP'){stream.out('214-Commands supported\r\n214 HELO MAIL RCPT DATA\r\n214 NOOP QUIT RSET HELP'); touch=true;} | ||
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| if(cmd == 'EXPN'){stream.out('550 EXPN not available'); touch=true;} | ||
| if(cmd == 'EHLO' || data.left(4)=='SEND' || data.left(4)=='SAML' || data.left(4)=='SOML' | data.left(4)=='TURN'){stream.out('502 Unsupported here'); touch=true;} | ||
| if(cmd == 'VRFY'){stream.out('252 VRFY not available'); touch=true;} | ||
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| if(!touch){stream.out('500 Unrecognized command');} | ||
| } | ||
| } | ||
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| } | ||
| ); | ||
| stream.on('end', | ||
| function () { | ||
| console.info(' Unexpected End, Terminating connection.'); | ||
| stream.destroy(); | ||
| } | ||
| ); | ||
| } | ||
| ); | ||
| server.listen(25, '10.209.215.64'); |