Brad Arant
cd5e0a9905
IMAP (RFC 3501): LOGIN through UID, previously all stubs except CAPABILITY/LOGOUT/a partial APPEND. Multi-folder support with per-folder UID/flag indexing (new MailFolder class, backed by .uidvalidity/.uidnext/ .imapindex sidecar files), ENVELOPE support (new MessageHeaders class: header parsing, address-list parsing, IMAP quoting), and shared cursor-based argument parsing (new IMAPArgs class: sequence sets, flag lists, dates, folder-name normalization, and path-traversal protection via isValidFolderName - a bare ".." folder name would otherwise resolve into a sibling user's mailbox directory). POP3 (RFC 1939): USER through QUIT, previously only CAPA. Added UIDL. POP3 handlers use cursor-based parsing throughout rather than indexed access - ZString's copy constructor doesn't copy its `list` field, and POP3's dispatch passes the request by value, so indexed access into a copy was silently reading nothing. SMTP: DMARC evaluation added to the DATA-terminator path (DKIM verification + alignment/policy, Authentication-Results header, conditional rejection matching RFC 7489 6.3's p=reject + sampled pct=). AUTH LOGIN now handles RFC 4954's optional inline initial response (e.g. Python smtplib's "AUTH LOGIN <base64>" in one line) instead of only the exact three-line form. Outbound relay now forces IPv4 (AF_INET) instead of AF_UNSPEC - this server's IPv4 has a correct PTR record and SPF coverage, its IPv6 doesn't, and Gmail was rejecting outbound mail with 550 5.7.25 as a result. Delivery pipeline: local delivery now runs the message through SpamAssassin (new SpamAssassinFilter class, speaking spamd's PROCESS protocol directly over a raw socket - fails open/delivers unscanned if spamd is unreachable) instead of a plain hardlink, since scanning can tag/modify content. BARANTMailConfig: extracted config loading into its own class. compile: (see individual file changes - build script adjustments to match the above). Deliberately excluded from this commit: barantmail.log/ barantmail-service.log (operational logs, not source - barantmail.log in particular was the runaway 55GB/12.9GB file from a busy-loop bug fixed separately in ServerCore) and barantmail.cfg (this server's own live deployment config, matching how APIServer's equivalent config also stays untracked).
82 lines
2.5 KiB
C++
82 lines
2.5 KiB
C++
#ifndef __POP3Server_h__
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#define __POP3Server_h__
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#include "TCPServer.h"
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#include "TLSInfo.h"
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#include "Exception.h"
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#include "MailFileSystem.h"
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#include "POP3Session.h"
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#include "__POP3_CAPA.h"
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#include "__POP3_DELE.h"
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#include "__POP3_LAST.h"
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#include "__POP3_LIST.h"
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#include "__POP3_NOOP.h"
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#include "__POP3_PASS.h"
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#include "__POP3_QUIT.h"
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#include "__POP3_RETR.h"
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#include "__POP3_RPOP.h"
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#include "__POP3_RSET.h"
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#include "__POP3_STAT.h"
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#include "__POP3_TOP.h"
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#include "__POP3_UIDL.h"
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#include "__POP3_USER.h"
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namespace mail {
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class POP3Server : public core::TCPServer {
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public:
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POP3Server(core::EPoll &epoll, std::string hostName, MailFileSystem &mailFileSystem,
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core::IPAddress ipAddress, core::TLSInfo *tlsInfo)
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: TCPServer(epoll, ipAddress, tlsInfo, " ", 10, "POP3 Server"), mailFileSystem(mailFileSystem), hostName(hostName) {
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// RFC 2449: was not registered at all before.
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commands.add(_pop3_capa, "CAPA");
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commands.add(_pop3_dele, "DELE");
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commands.add(_pop3_last, "LAST");
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commands.add(_pop3_list, "LIST");
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commands.add(_pop3_noop, "NOOP");
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commands.add(_pop3_pass, "PASS");
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commands.add(_pop3_quit, "QUIT");
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commands.add(_pop3_retr, "RETR");
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commands.add(_pop3_rpop, "RPOP");
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commands.add(_pop3_rset, "RSET");
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commands.add(_pop3_stat, "STAT");
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commands.add(_pop3_top, "TOP");
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commands.add(_pop3_uidl, "UIDL");
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commands.add(_pop3_user, "USER");
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}
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MailFileSystem &mailFileSystem;
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std::string hostName;
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// Same reasoning as IMAPServer's own override - without it every
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// accepted connection gets a plain TCPSession, POP3Session's
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// greeting never fires, and POP3Command's (POP3Session &)session
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// casts are undefined behavior against an object that was never
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// actually a POP3Session.
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POP3Session *getSocketAccept(core::EPoll &ePoll) override {
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return new POP3Session(ePoll, *this);
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}
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private:
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__POP3_CAPA _pop3_capa;
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__POP3_DELE _pop3_dele;
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__POP3_LAST _pop3_last;
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__POP3_LIST _pop3_list;
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__POP3_NOOP _pop3_noop;
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__POP3_PASS _pop3_pass;
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__POP3_QUIT _pop3_quit;
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__POP3_RETR _pop3_retr;
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__POP3_RPOP _pop3_rpop;
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__POP3_RSET _pop3_rset;
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__POP3_STAT _pop3_stat;
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__POP3_TOP _pop3_top;
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__POP3_UIDL _pop3_uidl;
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__POP3_USER _pop3_user;
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};
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}
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#endif
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