69 lines
2.6 KiB
Bash
69 lines
2.6 KiB
Bash
#!/bin/bash
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# shellcheck disable=SC2034,SC2155
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# ? ABOUT: Functions defined here help with sending emails in tests.
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# ! ATTENTION: This file is loaded by `common.sh` - do not load it yourself!
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# ! ATTENTION: This file requires helper functions from `common.sh`!
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# Sends a mail from localhost (127.0.0.1) via port 25 to the container. To send
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# a custom email, create a file at `test/test-files/email-templates/<TEST FILE>`,
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# and provide `<TEST FILE>` as an argument to this function.
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#
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# @param ${1} = template file (path) name
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# @param ${2} = container name [OPTIONAL]
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#
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# ## Attention
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#
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# This function will just send the email in an "asynchronous" fashion, i.e. it will
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# send the email but it will not make sure the mail queue is empty after the mail
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# has been sent.
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function _send_email() {
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local TEMPLATE_FILE=${1:?Must provide name of template file}
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local CONTAINER_NAME=$(__handle_container_name "${2:-}")
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_run_in_container_bash "nc 0.0.0.0 25 < /tmp/docker-mailserver-test/email-templates/${TEMPLATE_FILE}.txt"
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assert_success
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}
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# Like `_send_mail` with two major differences:
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#
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# 1. this function waits for the mail to be processed; there is no asynchronicity
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# because filtering the logs in a synchronous way is easier and safer!
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# 2. this function prints an ID one can later filter by to check logs
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#
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# No. 2 is especially useful in case you send more than one email in a single
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# test file and need to assert certain log entries for each mail individually.
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#
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# @param ${1} = template file (path) name
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# @param ${2} = container name [OPTIONAL]
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#
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# ## Safety
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#
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# This functions assumes **no concurrent sending of emails to the same container**!
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# If two clients send simultaneously, there is no guarantee the correct ID is
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# chosen. Sending more than one mail at any given point in time with this function
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# is UNDEFINED BEHAVIOR!
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function _send_mail_and_get_id() {
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local TEMPLATE_FILE=${1:?Must provide name of template file}
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local CONTAINER_NAME=$(__handle_container_name "${2:-}")
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local MAIL_ID
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_wait_for_empty_mail_queue_in_container
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_send_email "${TEMPLATE_FILE}"
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_wait_for_empty_mail_queue_in_container
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# The unique ID Postfix (and other services) use may be different in length
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# on different systems (e.g. amd64 (11) vs aarch64 (10)). Hence, we use a
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# range to safely capture it.
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MAIL_ID=$(_exec_in_container tac /var/log/mail.log \
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| grep -E -m 1 'postfix/smtpd.*: [A-Z0-9]+: client=localhost' \
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| grep -E -o '[A-Z0-9]{9,12}' || true)
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run bash -c "-z ${MAIL_ID}"
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assert_success 'Could not obtain mail ID - aborting!'
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echo "${MAIL_ID}"
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}
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