Revert "Add first working version of imbox"

Moved to <https://git.causal.agency/imbox>.

This reverts commit 6aa7f2f6bf47fa9df9c749ce665171fa30800937.

4 files changed, 0 insertions, 401 deletions

diff --git a/bin/.gitignore b/bin/.gitignore
index 20bffec1..78e94de3 100644
--- a/bin/.gitignore
+++ b/bin/.gitignore
@@ -13,7 +13,6 @@ fbclock
 glitch
 hi
 hnel
-imbox
 modem
 open
 order
diff --git a/bin/Makefile b/bin/Makefile
index 70e0bb7e..749acaf7 100644
--- a/bin/Makefile
+++ b/bin/Makefile
@@ -51,7 +51,6 @@ BINS_LINUX += psfed
 
 BINS_CURL += title
 
-BINS_TLS += imbox
 BINS_TLS += relay
 
 BINS = ${BINS_ANY} ${BINS_BSD} ${BINS_LINUX} ${BINS_CURL} ${BINS_TLS}
@@ -81,9 +80,6 @@ hi: hi.c
 open pbcopy pbpaste: pbd
 	ln -f pbd $@
 
-imbox: imbox.c
-	${CC} ${CFLAGS_tls} ${LDFLAGS_tls} $@.c ${LDLIBS_tls} -o $@
-
 relay: relay.c
 	${CC} ${CFLAGS_tls} ${LDFLAGS_tls} $@.c ${LDLIBS_tls} -o $@
 
diff --git a/bin/imbox.c b/bin/imbox.c
deleted file mode 100644
index 9f469831..00000000
--- a/bin/imbox.c
+++ /dev/null
@@ -1,306 +0,0 @@
-/* Copyright (C) 2019  C. McEnroe <june@causal.agency>
- *
- * This program is free software: you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation, either version 3 of the License, or
- * (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program.  If not, see <https://www.gnu.org/licenses/>.
- */
-
-#include <ctype.h>
-#include <err.h>
-#include <readpassphrase.h>
-#include <regex.h>
-#include <stdbool.h>
-#include <stdio.h>
-#include <stdlib.h>
-#include <string.h>
-#include <sysexits.h>
-#include <tls.h>
-#include <unistd.h>
-
-#define ARRAY_LEN(a) (sizeof(a) / sizeof((a)[0]))
-
-static void compile(regex_t *regex, const char *pattern) {
-	if (regex->re_nsub) return;
-	int error = regcomp(regex, pattern, REG_EXTENDED | REG_NEWLINE);
-	if (!error) return;
-	char buf[256];
-	regerror(error, regex, buf, sizeof(buf));
-	errx(EX_SOFTWARE, "regcomp: %s: %s", buf, pattern);
-}
-
-static void mboxrd(const char *headers, const char *body) {
-	static regex_t fromRegex;
-	compile(&fromRegex, "^From: .*<([^>]+)>");
-
-	regmatch_t from[2];
-	int error = regexec(&fromRegex, headers, 2, from, 0);
-	if (error) errx(EX_DATAERR, "missing From header");
-	printf(
-		"From %.*s ",
-		(int)(from[1].rm_eo - from[1].rm_so), &headers[from[1].rm_so]
-	);
-
-	static regex_t dateRegex;
-	compile(&dateRegex, "^Date: (...), (..) (...) (....) (.{8})");
-
-	regmatch_t date[6];
-	error = regexec(&dateRegex, headers, 6, date, 0);
-	if (error) errx(EX_DATAERR, "missing Date header");
-	printf(
-		"%.*s %.*s %.*s %.*s %.*s\r\n",
-		(int)(date[1].rm_eo - date[1].rm_so), &headers[date[1].rm_so],
-		(int)(date[3].rm_eo - date[3].rm_so), &headers[date[3].rm_so],
-		(int)(date[2].rm_eo - date[2].rm_so), &headers[date[2].rm_so],
-		(int)(date[5].rm_eo - date[5].rm_so), &headers[date[5].rm_so],
-		(int)(date[4].rm_eo - date[4].rm_so), &headers[date[4].rm_so]
-	);
-
-	printf("%s", headers);
-	// FIXME: There seems to sometimes be some garbage data at the end of the
-	// headers?
-
-	static regex_t quoteRegex;
-	compile(&quoteRegex, "^>*From ");
-	regmatch_t match = {0};
-	for (const char *ptr = body;; ptr += match.rm_eo) {
-		regmatch_t match;
-		error = regexec(
-			&quoteRegex, body, 1, &match, (ptr > body ? REG_NOTBOL : 0)
-		);
-		if (error) {
-			printf("%s", ptr);
-			break;
-		}
-		printf(
-			"%.*s>%.*s",
-			(int)match.rm_so, ptr,
-			(int)(match.rm_eo - match.rm_so), &ptr[match.rm_so]
-		);
-	}
-
-	// FIXME: mbox technically shouldn't use \r\n but everything else does...
-	printf("\r\n");
-}
-
-static bool verbose;
-
-int tlsRead(void *_tls, char *ptr, int len) {
-	struct tls *tls = _tls;
-	ssize_t ret;
-	do {
-		ret = tls_read(tls, ptr, len);
-	} while (ret == TLS_WANT_POLLIN || ret == TLS_WANT_POLLOUT);
-	if (ret < 0) errx(EX_IOERR, "tls_read: %s", tls_error(tls));
-	if (verbose) fprintf(stderr, "%.*s", (int)ret, ptr);
-	return ret;
-}
-
-int tlsWrite(void *_tls, const char *ptr, int len) {
-	struct tls *tls = _tls;
-	ssize_t ret;
-	do {
-		ret = tls_write(tls, ptr, len);
-	} while (ret == TLS_WANT_POLLIN || ret == TLS_WANT_POLLOUT);
-	if (ret < 0) errx(EX_IOERR, "tls_write: %s", tls_error(tls));
-	if (verbose) fprintf(stderr, "%.*s", (int)ret, ptr);
-	return ret;
-}
-
-int tlsClose(void *_tls) {
-	struct tls *tls = _tls;
-	int error = tls_close(tls);
-	if (error) errx(EX_IOERR, "tls_close: %s", tls_error(tls));
-	return error;
-}
-
-#define ENUM_ATOM \
-	X(Unknown, "") \
-	X(Untagged, "*") \
-	X(Ok, "OK") \
-	X(No, "NO") \
-	X(Bad, "BAD") \
-	X(Bye, "BYE") \
-	X(Login, "LOGIN") \
-	X(Select, "SELECT") \
-	X(Search, "SEARCH") \
-	X(Fetch, "FETCH")
-
-enum Atom {
-#define X(id, _) id,
-	ENUM_ATOM
-#undef X
-};
-
-static const char *Atoms[] = {
-#define X(id, str) [id] = str,
-	ENUM_ATOM
-#undef X
-};
-
-static enum Atom atom(const char *str) {
-	if (!str) return Unknown;
-	for (size_t i = 0; i < ARRAY_LEN(Atoms); ++i) {
-		if (!strcmp(str, Atoms[i])) return i;
-	}
-	return Unknown;
-}
-
-static char *readLiteral(FILE *imap, const char *line) {
-	char *prefix = strrchr(line, '{');
-	if (!prefix) errx(EX_PROTOCOL, "no literal prefix");
-
-	size_t size = strtoul(prefix + 1, NULL, 10);
-	if (!size) errx(EX_PROTOCOL, "invalid literal size");
-
-	char *literal = malloc(size);
-	if (!literal) err(EX_OSERR, "malloc");
-
-	size_t count = fread(literal, size, 1, imap);
-	if (!count) errx(EX_PROTOCOL, "could not read literal");
-
-	return literal;
-}
-
-int main(int argc, char *argv[]) {
-	const char *host = "imap.fastmail.com";
-	const char *port = "993";
-	const char *mailbox = "INBOX";
-	const char *search = "SUBJECT \"[PATCH\"";
-	int rppFlags = 0;
-
-	int opt;
-	while (0 < (opt = getopt(argc, argv, "h:m:p:s:vw"))) {
-		switch (opt) {
-			break; case 'h': host = optarg;
-			break; case 'm': mailbox = optarg;
-			break; case 'p': port = optarg;
-			break; case 's': search = optarg;
-			break; case 'v': verbose = true;
-			break; case 'w': rppFlags |= RPP_STDIN;
-			break; default:  return EX_USAGE;
-		}
-	}
-
-	const char *user = argv[optind];
-	if (!user) errx(EX_USAGE, "username required");
-
-	char buf[1024];
-	char *pass = readpassphrase(
-		(rppFlags & RPP_STDIN ? "" : "Password: "),
-		buf, sizeof(buf), rppFlags
-	);
-	if (!pass) err(EX_UNAVAILABLE, "readpassphrase");
-
-	struct tls *client = tls_client();
-	if (!client) errx(EX_SOFTWARE, "tls_client");
-
-	struct tls_config *config = tls_config_new();
-	if (!config) errx(EX_SOFTWARE, "tls_config_new");
-
-	int error = tls_configure(client, config);
-	if (error) errx(EX_SOFTWARE, "tls_configure: %s", tls_error(client));
-	tls_config_free(config);
-
-	error = tls_connect(client, host, port);
-	if (error) errx(EX_NOHOST, "tls_connect: %s", tls_error(client));
-
-	FILE *imap = funopen(client, tlsRead, tlsWrite, NULL, tlsClose);
-	if (!imap) err(EX_SOFTWARE, "funopen");
-
-	bool login = false;
-	char *uids = NULL;
-
-	char *line = NULL;
-	size_t cap = 0;
-	while (0 < getline(&line, &cap, imap)) {
-		if (strchr(line, '\r')) *strchr(line, '\r') = '\0';
-
-		char *rest = line;
-		enum Atom tag = atom(strsep(&rest, " "));
-		if (rest && isdigit(rest[0])) strsep(&rest, " ");
-		enum Atom resp = atom(strsep(&rest, " "));
-
-		if (resp == No || resp == Bad) {
-			errx(
-				EX_CONFIG, "%s: %s %s",
-				Atoms[tag], Atoms[resp], (rest ? rest : "")
-			);
-		} else if (resp == Bye) {
-			errx(EX_UNAVAILABLE, "unexpected BYE: %s", (rest ? rest : ""));
-		}
-
-		switch (tag) {
-			break; case Untagged: {
-				if (login) break;
-				fprintf(imap, "%s LOGIN %s %s\r\n", Atoms[Login], user, pass);
-				login = true;
-			}
-			break; case Login: {
-				fprintf(imap, "%s SELECT %s\r\n", Atoms[Select], mailbox);
-			}
-			break; case Select: {
-				fprintf(
-					imap, "%s UID SEARCH CHARSET UTF-8 %s\r\n",
-					Atoms[Search], search
-				);
-			}
-			break; case Search: {
-				if (!uids) errx(EX_PROTOCOL, "no search response");
-				for (char *ch = uids; *ch; ++ch) {
-					if (*ch == ' ') *ch = ',';
-				}
-				// FIXME: Grab Content-Encoding as well?
-				fprintf(
-					imap,
-					"%s UID FETCH %s ("
-					"BODY[HEADER.FIELDS (Date From Subject Message-Id)] "
-					"BODY[TEXT]"
-					")\r\n",
-					Atoms[Fetch], uids
-				);
-			}
-			break; case Fetch: {
-				fprintf(imap, "ayy LOGOUT\r\n");
-				fclose(imap);
-				return EX_OK;
-			}
-			break; default:;
-		}
-
-		switch (resp) {
-			break; case Search: {
-				if (!rest) errx(EX_TEMPFAIL, "no messages match");
-				uids = strdup(rest);
-				if (!uids) err(EX_OSERR, "strdup");
-			}
-			break; case Fetch: {
-				char *headers = readLiteral(imap, rest);
-
-				ssize_t len = getline(&line, &cap, imap);
-				if (len <= 0) errx(EX_PROTOCOL, "unexpected eof");
-
-				char *body = readLiteral(imap, line);
-
-				len = getline(&line, &cap, imap);
-				if (len <= 0) errx(EX_PROTOCOL, "unexpected eof");
-				if (strcmp(line, ")\r\n")) {
-					errx(EX_PROTOCOL, "trailing fetch data");
-				}
-
-				mboxrd(headers, body);
-				free(headers);
-				free(body);
-			}
-			break; default:;
-		}
-	}
-}
diff --git a/bin/man1/imbox.1 b/bin/man1/imbox.1
deleted file mode 100644
index 791c9968..00000000
--- a/bin/man1/imbox.1
+++ /dev/null
@@ -1,90 +0,0 @@
-.Dd December 20, 2019
-.Dt IMBOX 1
-.Os
-.
-.Sh NAME
-.Nm imbox
-.Nd IMAP to mboxrd
-.
-.Sh SYNOPSIS
-.Nm
-.Op Fl vw
-.Op Fl h Ar host
-.Op Fl m Ar mailbox
-.Op Fl p Ar port
-.Op Fl s Ar search
-.Ar user
-.
-.Sh DESCRIPTION
-The
-.Nm
-utility exports messages from an IMAP mailbox
-to the mboxrd format on standard output.
-IMAP login is performed as
-.Ar user
-with a password read from
-.Pa /dev/tty ,
-or standard input if
-.Fl w
-is used.
-.
-.Pp
-The arguments are as follows:
-.Bl -tag -width Ds
-.It Fl h Ar host
-Connect to
-.Ar host .
-The default host is
-.Li imap.fastmail.com .
-TLS without STARTTLS is assumed.
-.
-.It Fl m Ar mailbox
-Export messages from
-.Ar mailbox .
-The default mailbox is INBOX.
-.
-.It Fl p Ar port
-Connect to
-.Ar port .
-The default port is 993.
-.
-.It Fl s Ar search
-Export messages matching
-.Ar search .
-The default search is
-.Ql SUBJECT \(dq[PATCH\(dq .
-.
-.It Fl v
-Log IMAP protocol to standard error.
-.
-.It Fl w
-Read the IMAP password from standard input.
-.El
-.
-.Sh EXAMPLES
-.Bd -literal
-imbox june@causal.agency | git am
-.Ed
-.
-.Sh STANDARDS
-.Bl -item
-.It
-.Rs
-.%A M. Crispin
-.%Q University of Washington
-.%T INTERNET MESSAGE ACCESS PROTOCOL - VERSION 4rev1
-.%I IETF
-.%N RFC 3501
-.%D March 2003
-.%U https://tools.ietf.org/html/rfc3501
-.Re
-.It
-.Rs
-.%A E. Hall
-.%T The application/mbox Media Type
-.%I IETF
-.%N RFC 4155
-.%D September 2005
-.%U https://tools.ietf.org/html/rfc4155
-.Re
-.El