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https://github.com/takuya/ruby-gmail-forwarder
https://github.com/takuya/ruby-gmail-forwarder
Last synced: 9 days ago
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- Host: GitHub
- URL: https://github.com/takuya/ruby-gmail-forwarder
- Owner: takuya
- License: gpl-3.0
- Created: 2024-09-09T00:53:20.000Z (2 months ago)
- Default Branch: master
- Last Pushed: 2024-11-04T05:53:43.000Z (15 days ago)
- Last Synced: 2024-11-04T06:28:02.590Z (15 days ago)
- Language: Ruby
- Size: 46.9 KB
- Stars: 0
- Watchers: 1
- Forks: 0
- Open Issues: 0
-
Metadata Files:
- Readme: README.md
- License: LICENSE
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README
## SMTP to GMail Forwarder
The PROXY-SMTP server relay to GMAIL-SMTP. This intended run as server.
## Installing
```sh
## Gemfile initialized
bundle init
## add dependency
DEP_URL=https://github.com/takuya/ruby-google-xoauth2.git
echo gem "'takuya-xoauth2', git: '$DEP_URL'" >> Gemfile
## add this repository
REPO_URL=https://github.com/takuya/ruby-gmail-forwarder.git
echo "gem 'takuya-gmail-forwarder', git: '$REPO_URL'" >> Gemfile
## installation
bundle install
```
### prepare credentials
```sh
touch credentials/tokens.yml
touch credentials/client_secret.json
```
- client_secret.json / from Google Consle
- tokens.yaml / from Google::Auth::Stores::FileTokenStore
to generate theese file , see [takuya-xoauth](https://github.com/takuya/ruby-google-xoauth2)
### Starting demo-server
```sh
bundle exec bin/smtp-proxy-debug.rb
```
### Starting sever
call `Smtpd#start` and `Smtpd#join` for waiting .
```ruby
def parepare_server
require 'dotenv/load'
Dotenv.load('.env', '.env.sample')
user_id = YAML.load_file(ENV["token_path"]).keys[0]
host = '127.0.25.25'
port = '2525' # rand(49151...65535)
Takuya::GMailForwarderServer.new(
user_id: user_id,
token_path: ENV['token_path'],
client_secret_path: ENV['client_secret_path'],
hosts: host,
ports: port
)
end
server = parepare_server
server.start
server.join
```
### modify mail in proxy
To rewrite mailbody in proxy by man-in-the-middle.
just overload `on_proxy_send_mail` method. in your class
```ruby
class MyServer >> 220 127.0.25.25 says welcome!
2024-09-24 15:57:36 +0900: [DEBUG] <<< EHLO localhost.localdomain
2024-09-24 15:57:36 +0900: [DEBUG] >>> 250-127.0.25.25 at your service!
250 OK
2024-09-24 15:57:36 +0900: [DEBUG] <<< MAIL FROM:
2024-09-24 15:57:36 +0900: [DEBUG] >>> 250 OK
2024-09-24 15:57:37 +0900: [DEBUG] <<< RCPT TO:
2024-09-24 15:57:37 +0900: [DEBUG] >>> 250 OK
2024-09-24 15:57:37 +0900: [DEBUG] <<< DATA
2024-09-24 15:57:37 +0900: [DEBUG] >>> 354 Enter message, ending with "." on a line by itself
will occurs TCP Timeout (FAILED - 1)
Failures:
1) MidiSmtpServer::Smtpd#on_message_data_event will occurs TCP Timeout
Failure/Error: mail.deliver!
Net::ReadTimeout:
Net::ReadTimeout with #
# ./vendor/bundle/ruby/3.1.0/gems/net-protocol-0.2.2/lib/net/protocol.rb:229:in `rbuf_fill'
# ./vendor/bundle/ruby/3.1.0/gems/net-protocol-0.2.2/lib/net/protocol.rb:199:in `readuntil'
# ./vendor/bundle/ruby/3.1.0/gems/net-protocol-0.2.2/lib/net/protocol.rb:209:in `readline'
# ./vendor/bundle/ruby/3.1.0/gems/net-smtp-0.5.0/lib/net/smtp.rb:1017:in `recv_response'
# ./vendor/bundle/ruby/3.1.0/gems/net-smtp-0.5.0/lib/net/smtp.rb:979:in `block in data'
# ./vendor/bundle/ruby/3.1.0/gems/net-smtp-0.5.0/lib/net/smtp.rb:1027:in `critical'
# ./vendor/bundle/ruby/3.1.0/gems/net-smtp-0.5.0/lib/net/smtp.rb:965:in `data'
# ./vendor/bundle/ruby/3.1.0/gems/net-smtp-0.5.0/lib/net/smtp.rb:799:in `block in send_message'
# ./vendor/bundle/ruby/3.1.0/gems/net-smtp-0.5.0/lib/net/smtp.rb:926:in `rcptto_list'
# ./vendor/bundle/ruby/3.1.0/gems/net-smtp-0.5.0/lib/net/smtp.rb:799:in `send_message'
# ./vendor/bundle/ruby/3.1.0/gems/mail-2.8.1/lib/mail/network/delivery_methods/smtp_connection.rb:53:in `deliver!'
# ./vendor/bundle/ruby/3.1.0/gems/mail-2.8.1/lib/mail/network/delivery_methods/smtp.rb:101:in `block in deliver!'
# ./vendor/bundle/ruby/3.1.0/gems/net-smtp-0.5.0/lib/net/smtp.rb:643:in `start'
# ./vendor/bundle/ruby/3.1.0/gems/mail-2.8.1/lib/mail/network/delivery_methods/smtp.rb:109:in `start_smtp_session'
# ./vendor/bundle/ruby/3.1.0/gems/mail-2.8.1/lib/mail/network/delivery_methods/smtp.rb:100:in `deliver!'
# ./vendor/bundle/ruby/3.1.0/gems/mail-2.8.1/lib/mail/message.rb:269:in `deliver!'
# ./spec/prevent-timeout_spec.rb:33:in `block (2 levels) in '
Finished in 5.62 seconds (files took 0.77611 seconds to load)
1 example, 1 failure
Failed examples:
rspec ./spec/prevent-timeout_spec.rb:6 # MidiSmtpServer::Smtpd#on_message_data_event will occurs TCP Timeout
2024-09-24 15:57:42 +0900: [DEBUG] Client disconnect from 127.0.0.1:47056 on 127.0.25.25:59604
```
To prevent TCPError in smtp client, I wrote monkey patch.
I added `io.disconnect` in server Thread, it works fine.