push-notify-apn
push-notify-apn is a library and command line utility that can be used to send
push notifications to mobile devices running iOS. Push notifications are small
messages that can be sent to apps on smart phones and tablets
without the need to keep open a long lived TCP connection per app, dramatically
reducing the power consumption in standby mode.
The library is still in an experimental state. Bug and success reports
as well as feature and pull requests are very welcome.
Sending a message is as simple as:
let sandbox = True -- Development environment
timeout = 10 -- Minutes to keep the connection open
session <- newSession "my.key" "my.crt"
"/etc/ssl/ca_certificates.txt" sandbox
timeout "my.bundle.id"
let payload = alertMessage "Title" "Hello From Haskell"
message = newMessage payload
token = base16EncodedToken "the-token"
success <- sendMessage session token payload
print success
command line utility
The command line utility can be used for testing your app. Use like this:
sendapn -c ../apn.crt -k ../apn.key -a \
/etc/ssl/certs/ca-certificates.crt -b your.bundle.id -s \
-t your-token -m "Your-message"
The -s flag means "sandbox", i.e., for apps that are deployed in a
development environment.
credentials
apn.crt and apn.key are the certificate and private key of your
APN certificate from apple. To extract them from a .p12 file,
use openssl:
openssl pkcs12 -in mycredentials.p12 -out apn.crt -nokeys
openssl pkcs12 -in mycredentials.p12 -nodes -out apn.key -nocerts
ca-certificates.crt is a truststore that contains the root certificates
that are used to verify the apn server's server certificates.