From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from firstgate.proxmox.com (firstgate.proxmox.com [212.224.123.68]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange X25519 server-signature RSA-PSS (2048 bits)) (No client certificate requested) by lists.proxmox.com (Postfix) with ESMTPS id BD8CE8732 for ; Thu, 31 Aug 2023 13:06:27 +0200 (CEST) Received: from firstgate.proxmox.com (localhost [127.0.0.1]) by firstgate.proxmox.com (Proxmox) with ESMTP id A6D0A8E7B for ; Thu, 31 Aug 2023 13:06:27 +0200 (CEST) Received: from proxmox-new.maurer-it.com (proxmox-new.maurer-it.com [94.136.29.106]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange X25519 server-signature RSA-PSS (2048 bits)) (No client certificate requested) by firstgate.proxmox.com (Proxmox) with ESMTPS for ; Thu, 31 Aug 2023 13:06:26 +0200 (CEST) Received: from proxmox-new.maurer-it.com (localhost.localdomain [127.0.0.1]) by proxmox-new.maurer-it.com (Proxmox) with ESMTP id DF99347B02 for ; Thu, 31 Aug 2023 13:06:25 +0200 (CEST) From: Lukas Wagner To: pve-devel@lists.proxmox.com Date: Thu, 31 Aug 2023 13:06:12 +0200 Message-Id: <20230831110621.340832-3-l.wagner@proxmox.com> X-Mailer: git-send-email 2.39.2 In-Reply-To: <20230831110621.340832-1-l.wagner@proxmox.com> References: <20230831110621.340832-1-l.wagner@proxmox.com> MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-SPAM-LEVEL: Spam detection results: 0 AWL -0.036 Adjusted score from AWL reputation of From: address BAYES_00 -1.9 Bayes spam probability is 0 to 1% DMARC_MISSING 0.1 Missing DMARC policy KAM_DMARC_STATUS 0.01 Test Rule for DKIM or SPF Failure with Strict Alignment SPF_HELO_NONE 0.001 SPF: HELO does not publish an SPF Record SPF_PASS -0.001 SPF: sender matches SPF record URIBL_BLOCKED 0.001 ADMINISTRATOR NOTICE: The query to URIBL was blocked. See http://wiki.apache.org/spamassassin/DnsBlocklists#dnsbl-block for more information. [email.rs] Subject: [pve-devel] [PATCH proxmox 02/11] sys: email: add `forward` X-BeenThere: pve-devel@lists.proxmox.com X-Mailman-Version: 2.1.29 Precedence: list List-Id: Proxmox VE development discussion List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Thu, 31 Aug 2023 11:06:27 -0000 This new function forwards an email to new recipients. Signed-off-by: Lukas Wagner --- proxmox-sys/src/email.rs | 52 +++++++++++++++++++++++++++++++++++++++- 1 file changed, 51 insertions(+), 1 deletion(-) diff --git a/proxmox-sys/src/email.rs b/proxmox-sys/src/email.rs index da910d4..cf7091a 100644 --- a/proxmox-sys/src/email.rs +++ b/proxmox-sys/src/email.rs @@ -3,7 +3,7 @@ use std::io::Write; use std::process::{Command, Stdio}; -use anyhow::{bail, Error}; +use anyhow::{bail, format_err, Error}; /// Sends multi-part mail with text and/or html to a list of recipients /// @@ -107,6 +107,56 @@ pub fn sendmail( Ok(()) } +/// Forwards an email message to a given list of recipients. +/// +/// ``sendmail`` is used for sending the mail, thus `message` must be +/// compatible with that (the message is piped into stdin unmodified). +pub fn forward( + mailto: &[&str], + mailfrom: &str, + message: &[u8], + uid: Option, +) -> Result<(), Error> { + use std::os::unix::process::CommandExt; + + if mailto.is_empty() { + bail!("At least one recipient has to be specified!") + } + + let mut builder = Command::new("/usr/sbin/sendmail"); + + builder + .args([ + "-N", "never", // never send DSN (avoid mail loops) + "-f", mailfrom, "--", + ]) + .args(mailto) + .stdin(Stdio::piped()) + .stdout(Stdio::null()) + .stderr(Stdio::null()); + + if let Some(uid) = uid { + builder.uid(uid); + } + + let mut process = builder + .spawn() + .map_err(|err| format_err!("could not spawn sendmail process: {err}"))?; + + process + .stdin + .take() + .unwrap() + .write_all(message) + .map_err(|err| format_err!("couldn't write to sendmail stdin: {err}"))?; + + process + .wait() + .map_err(|err| format_err!("sendmail did not exit successfully: {err}"))?; + + Ok(()) +} + #[cfg(test)] mod test { use crate::email::sendmail; -- 2.39.2