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<< izy-idman-tools README

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izy-pop3 README

Node.js pop3 server components for Izyware

izy-pop3

Node.js pop3 client, server, diagnostics and scripting components for Izyware Cloud Platform.

Development Methodology

Phase 1: Protocol Exploration, Skip Networking

We recommend that you develope an izy-proxy socket plugin and test the plug-in inline using

node cli.js method socket socket.path izy-pop3/proxypkg:directdb socket.testmod izy-pop3/proxypkg/test/android socket.verbose.writes true socket.verbose.ondata true socket.user user socket.pass password

Phase 2: Testing Over Restricted Network Environment

Since all the functionality is built as a TCP plug-in for izy-proxy, you may use the socket command line testing tools from izy-proxy, i.e.

node cli.js method socket socket.path localhost socket.port 20110 socket.testmod izy-pop3/proxypkg/test/android socket.verbose.pipe.s1data true socket.verbose.pipe.s2data true socket.verbose.pipe.teardown true socket.verbose.mock false socket.user user socket.pass 'password!'

If you need to debug the deployment over SSL without izy-proxy, use ncat --ssl. i.e.

Phase 3: Test Deployment

Point the socket.path variable in Phase 2 to the your final deployed environment.

`

node cli.js method socket socket.path pop3.izyware.com socket.port 995 socket.tls true socket.testmod izy-pop3/proxypkg/test/android socket.verbose.pipe.s1data true socket.verbose.pipe.s2data true socket.verbose.pipe.teardown true socket.verbose.mock true socket.user user socket.pass 'pass'

`

`

ncat --ssl pop3.izyware.com 995

USER user

PASS pass

LIST

RETR 1

`

Phase 3: Scalable Deployment

Deploy your TCP package to the IzyCloud and turn on auto scaling and instrumentation metrics.

NOTE

for more details, visit https://izyware.com

Change Log

V3

• client

* update taskify schema to use clientpop3/task from an izy-proxy host using 3.0+ chains.

* modify state schema to contain more config options

• update to read the payload from maildir dovecot storage
• updated to use the mimestore dataschema
• this package server has been integrated into izy-proxy.

* all the debugging, instrumentation mixed mode testing capabilities available in izy-proxy can now be used

* izy-pop3/proxypkg:directdb/mim modules have been implemented as a socket plug-in for izy-proxy

V1

• You can setup a task in the task manager dashboard with the following:

parameters: //chain/izy-pop3/proxypkg:test/base

state: {"ip"server","port"995","user"user@domain","pass"password","tls":true}

• Encoding of the POP3 data

* All the commands and metadata returned by the POP3 server are encoded using the ASCII character set. It is worth remembering that the payload returned via the RETR command is binary buffer of octets. This payload is passed on to the mime store handlers and it is up to the mime-store handler to serialize the data properly.

* Since .eml files are serialized octets from a RFC822 encoded message, the approach shown above would work perfectly fine and should generate interoperable stores that would work with standard compliant tools from 3rd party vendors.

• added proxypkg/test/base for continous testing
• What is Included in the LIST command: This behavior is server implementation dependent. For example, GMail will include the contents of the Sent folder and the archived items in LIST where as other providers (ie. Godaddy) may not do so.
• Evolution of Authentication Steps from the original standard

* Also note that some providers (i.e. Gmail) would not allow authentication:

* If you use Multifactor Authentication, try signing in with an App Password (https://support.google.com/accounts/answer/185833), you might get the following error:

`

-ERR [AUTH] Username and password not accepted.

`

* Note that to setup an app password you will have to re-enter your password and get MFA code to your device.

* As an alternative you may just disable MFA for a short period of time while doing backups. Doing this will have GMail send a confirmation email:

`

2-Step Verification turned off

You recently turned off 2-Step Verification for your Google Account ...

Don't recognize this activity?

Review your recently used devices now.

`

* Notice that no confirmation is sent to your MFA device when this gets turned off.

* If you don't use Multifactor Authentication, you might need to allow less secure apps to access your account.

* You might get the following error

`

-ERR [AUTH] Web login required: https://support.google.com/mail/answer/78754

`

and a follow up email gets sent:

`

Review blocked sign-in attempt

Hi xxx,

Google just blocked someone from signing into your Google Account xxx@gmail.com from an app that may put your account at risk.

Less secure app

xxxx

Don't recognize this activity?

If you didn't recently receive an error while trying to access a Google service, like Gmail, from a non-Google application, someone may have your password.

SECURE YOUR ACCOUNT

Are you the one who tried signing in?

Google will continue to block sign-in attempts from the app you're using because it has known security problems or is out of date. You can continue to use this app by allowing access to less secure apps, but this may leave your account vulnerable.

`

* You should go to https://myaccount.google.com/lesssecureapps and allow access for this to work.

* When you turn that on, you will also get an email:

`

Access for less secure apps has been turned on

`

• workarounds for pop3 standard issues. Some POP3 server implementation do not strictly stick to the standard definition. To workaround those issues, the client uses a state machine to intelligently perform RETR commands. Also note that the response to authentication requests from the server could take different forms. e.g. Gmail uses:

`

+OK Gpop ready for requests from \r\n

`

Secureserver.net however, will respond by:

`

+OK Fenix ready.\r\n

`

The general rule is that all responses from the server will start with one of the following:

`

+OK

-ERR

`

• added testing capabilities for the standalone izy-proxy server

`

node cli.js method test testtype fullclientserver

node cli.js method test testtype mimestore mimestore.modhandler fake query.limit 2 query.tags abc

node cli.js method test testtype mimestore mimestore.modhandler cloud mimestore.accesstoken xxxx mimestore.dataservice https://yourcloudlocation mimestore.verbose true mimestore.tablename yyy.xxx query.limit 2 query.tags abc

`

• implemented standalone izy-proxy module

`

npm install izy-pop3;cp -r nodemodules/izy-pop3/* .;rm -rf nodemodules/izy-pop3;

node cli.js method serverpop3 port 1110 password 12345 mimestore.modhandler fake

node cli.js method serverpop3 port 1110 password 12345 mimestore.modhandler cloud mimestore.dataservice xxx mimestore.xxx

ssh -i identity.pem -4 -v -R 1110:localhost:1110 user@your-server.com

node cli.js method clientpop3 ip pop.secureserver.net port 995 user user@domain pass 'password' tls true verbose.clientLog cmd list

node cli.js method clientpop3 ip pop.secureserver.net port 995 user user@domain pass 'password' tls true mimestore.modhandler localfs mimestore.path /tmp/izyware/mimestore cmd retr query 1-10

`