1//
  2// Copyright (c) 2019 Ted Unangst <tedu@tedunangst.com>
  3//
  4// Permission to use, copy, modify, and distribute this software for any
  5// purpose with or without fee is hereby granted, provided that the above
  6// copyright notice and this permission notice appear in all copies.
  7//
  8// THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
  9// WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
 10// MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
 11// ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
 12// WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
 13// ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
 14// OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
 15
 16package main
 17
 18import (
 19	"flag"
 20	"fmt"
 21	"html/template"
 22	golog "log"
 23	"log/syslog"
 24	notrand "math/rand"
 25	"os"
 26	"strconv"
 27	"time"
 28
 29	"humungus.tedunangst.com/r/webs/log"
 30)
 31
 32var softwareVersion = "develop"
 33
 34func init() {
 35	notrand.Seed(time.Now().Unix())
 36}
 37
 38var serverName string
 39var serverPrefix string
 40var masqName string
 41var dataDir = "."
 42var viewDir = "."
 43var iconName = "icon.png"
 44var serverMsg template.HTML
 45var aboutMsg template.HTML
 46var loginMsg template.HTML
 47
 48func ElaborateUnitTests() {
 49}
 50
 51func unplugserver(hostname string) {
 52	db := opendatabase()
 53	xid := fmt.Sprintf("%%https://%s/%%", hostname)
 54	db.Exec("delete from honkers where xid like ? and flavor = 'dub'", xid)
 55	db.Exec("delete from doovers where rcpt like ?", xid)
 56}
 57
 58func reexecArgs(cmd string) []string {
 59	args := []string{"-datadir", dataDir}
 60	args = append(args, log.Args()...)
 61	args = append(args, cmd)
 62	return args
 63}
 64
 65var elog, ilog, dlog *golog.Logger
 66
 67func errx(msg string, args ...interface{}) {
 68	fmt.Fprintf(os.Stderr, msg, args...)
 69	os.Exit(1)
 70}
 71
 72func main() {
 73	flag.StringVar(&dataDir, "datadir", dataDir, "data directory")
 74	flag.StringVar(&viewDir, "viewdir", viewDir, "view directory")
 75	flag.Parse()
 76
 77	log.Init(log.Options{Progname: "honk", Facility: syslog.LOG_UUCP})
 78	elog = log.E
 79	ilog = log.I
 80	dlog = log.D
 81
 82	if os.Geteuid() == 0 {
 83		elog.Fatalf("do not run honk as root")
 84	}
 85
 86	args := flag.Args()
 87	cmd := "run"
 88	if len(args) > 0 {
 89		cmd = args[0]
 90	}
 91	switch cmd {
 92	case "init":
 93		initdb()
 94	case "upgrade":
 95		upgradedb()
 96	case "version":
 97		fmt.Println(softwareVersion)
 98		os.Exit(0)
 99	}
100	db := opendatabase()
101	dbversion := 0
102	getconfig("dbversion", &dbversion)
103	if dbversion != myVersion {
104		elog.Fatal("incorrect database version. run upgrade.")
105	}
106	getconfig("servermsg", &serverMsg)
107	getconfig("aboutmsg", &aboutMsg)
108	getconfig("loginmsg", &loginMsg)
109	getconfig("servername", &serverName)
110	getconfig("masqname", &masqName)
111	if masqName == "" {
112		masqName = serverName
113	}
114	serverPrefix = fmt.Sprintf("https://%s/", serverName)
115	getconfig("usersep", &userSep)
116	getconfig("honksep", &honkSep)
117	getconfig("devel", &develMode)
118	getconfig("fasttimeout", &fastTimeout)
119	getconfig("slowtimeout", &slowTimeout)
120	getconfig("honkwindow", &honkwindow)
121	honkwindow *= 24 * time.Hour
122	getconfig("signgets", &signGets)
123	prepareStatements(db)
124	switch cmd {
125	case "admin":
126		adminscreen()
127	case "import":
128		if len(args) != 4 {
129			errx("import username honk|mastodon|twitter srcdir")
130		}
131		importMain(args[1], args[2], args[3])
132	case "export":
133		if len(args) != 3 {
134			errx("export username destdir")
135		}
136		export(args[1], args[2])
137	case "devel":
138		if len(args) != 2 {
139			errx("need an argument: devel (on|off)")
140		}
141		switch args[1] {
142		case "on":
143			setconfig("devel", 1)
144		case "off":
145			setconfig("devel", 0)
146		default:
147			errx("argument must be on or off")
148		}
149	case "setconfig":
150		if len(args) != 3 {
151			errx("need an argument: setconfig key val")
152		}
153		var val interface{}
154		var err error
155		if val, err = strconv.Atoi(args[2]); err != nil {
156			val = args[2]
157		}
158		setconfig(args[1], val)
159	case "adduser":
160		adduser()
161	case "deluser":
162		if len(args) < 2 {
163			errx("usage: honk deluser username\n")
164		}
165		deluser(args[1])
166	case "chpass":
167		if len(args) < 2 {
168			errx("usage: honk chpass username\n")
169		}
170		chpass(args[1])
171	case "follow":
172		if len(args) < 3 {
173			errx("usage: honk follow username url\n")
174		}
175		user, err := butwhatabout(args[1])
176		if err != nil {
177			errx("user %s not found\n", args[1])
178		}
179		var meta HonkerMeta
180		mj, _ := jsonify(&meta)
181		honkerid, err := savehonker(user, args[2], "", "presub", "", mj)
182		if err != nil {
183			errx("had some trouble with that: %s\n", err)
184		}
185		followyou(user, honkerid, true)
186	case "unfollow":
187		if len(args) < 3 {
188			errx("usage: honk unfollow username url\n")
189		}
190		user, err := butwhatabout(args[1])
191		if err != nil {
192			errx("user not found\n")
193		}
194		row := db.QueryRow("select honkerid from honkers where xid = ? and userid = ? and flavor in ('sub')", args[2], user.ID)
195		var honkerid int64
196		err = row.Scan(&honkerid)
197		if err != nil {
198			errx("sorry couldn't find them\n")
199		}
200		unfollowyou(user, honkerid, true)
201	case "sendmsg":
202		if len(args) < 4 {
203			errx("usage: honk send username filename rcpt\n")
204		}
205		user, err := butwhatabout(args[1])
206		if err != nil {
207			errx("user %s not found\n", args[1])
208		}
209		data, err := os.ReadFile(args[2])
210		if err != nil {
211			errx("can't read file: %s\n", err)
212		}
213		deliverate(user.ID, args[3], data)
214	case "cleanup":
215		arg := "30"
216		if len(args) > 1 {
217			arg = args[1]
218		}
219		cleanupdb(arg)
220	case "unplug":
221		if len(args) < 2 {
222			errx("usage: honk unplug servername\n")
223		}
224		name := args[1]
225		unplugserver(name)
226	case "backup":
227		if len(args) < 2 {
228			errx("usage: honk backup dirname\n")
229		}
230		name := args[1]
231		svalbard(name)
232	case "ping":
233		if len(args) < 3 {
234			errx("usage: honk ping (from username) (to username or url)\n")
235		}
236		name := args[1]
237		targ := args[2]
238		user, err := butwhatabout(name)
239		if err != nil {
240			errx("unknown user %s", name)
241		}
242		ping(user, targ)
243	case "run":
244		serve()
245	case "backend":
246		backendServer()
247	case "test":
248		ElaborateUnitTests()
249	default:
250		errx("unknown command")
251	}
252}