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 main() {
 68	flag.StringVar(&dataDir, "datadir", dataDir, "data directory")
 69	flag.StringVar(&viewDir, "viewdir", viewDir, "view directory")
 70	flag.Parse()
 71
 72	log.Init(log.Options{Progname: "honk", Facility: syslog.LOG_UUCP})
 73	elog = log.E
 74	ilog = log.I
 75	dlog = log.D
 76
 77	if os.Geteuid() == 0 {
 78		elog.Fatalf("do not run honk as root")
 79	}
 80
 81	args := flag.Args()
 82	cmd := "run"
 83	if len(args) > 0 {
 84		cmd = args[0]
 85	}
 86	switch cmd {
 87	case "init":
 88		initdb()
 89	case "upgrade":
 90		upgradedb()
 91	case "version":
 92		fmt.Println(softwareVersion)
 93		os.Exit(0)
 94	}
 95	db := opendatabase()
 96	dbversion := 0
 97	getconfig("dbversion", &dbversion)
 98	if dbversion != myVersion {
 99		elog.Fatal("incorrect database version. run upgrade.")
100	}
101	getconfig("servermsg", &serverMsg)
102	getconfig("aboutmsg", &aboutMsg)
103	getconfig("loginmsg", &loginMsg)
104	getconfig("servername", &serverName)
105	getconfig("masqname", &masqName)
106	if masqName == "" {
107		masqName = serverName
108	}
109	serverPrefix = fmt.Sprintf("https://%s/", serverName)
110	getconfig("usersep", &userSep)
111	getconfig("honksep", &honkSep)
112	getconfig("devel", &develMode)
113	getconfig("fasttimeout", &fastTimeout)
114	getconfig("slowtimeout", &slowTimeout)
115	getconfig("signgets", &signGets)
116	prepareStatements(db)
117	switch cmd {
118	case "admin":
119		adminscreen()
120	case "import":
121		if len(args) != 4 {
122			elog.Fatal("import username mastodon|twitter srcdir")
123		}
124		importMain(args[1], args[2], args[3])
125	case "devel":
126		if len(args) != 2 {
127			elog.Fatal("need an argument: devel (on|off)")
128		}
129		switch args[1] {
130		case "on":
131			setconfig("devel", 1)
132		case "off":
133			setconfig("devel", 0)
134		default:
135			elog.Fatal("argument must be on or off")
136		}
137	case "setconfig":
138		if len(args) != 3 {
139			elog.Fatal("need an argument: setconfig key val")
140		}
141		var val interface{}
142		var err error
143		if val, err = strconv.Atoi(args[2]); err != nil {
144			val = args[2]
145		}
146		setconfig(args[1], val)
147	case "adduser":
148		adduser()
149	case "deluser":
150		if len(args) < 2 {
151			fmt.Printf("usage: honk deluser username\n")
152			return
153		}
154		deluser(args[1])
155	case "chpass":
156		if len(args) < 2 {
157			fmt.Printf("usage: honk chpass username\n")
158			return
159		}
160		chpass(args[1])
161	case "follow":
162		if len(args) < 3 {
163			fmt.Printf("usage: honk follow username url\n")
164			return
165		}
166		user, err := butwhatabout(args[1])
167		if err != nil {
168			fmt.Printf("user not found\n")
169			return
170		}
171		var meta HonkerMeta
172		mj, _ := jsonify(&meta)
173		honkerid, err := savehonker(user, args[2], "", "presub", "", mj)
174		if err != nil {
175			fmt.Printf("had some trouble with that: %s\n", err)
176			return
177		}
178		followyou(user, honkerid, true)
179	case "unfollow":
180		if len(args) < 3 {
181			fmt.Printf("usage: honk unfollow username url\n")
182			return
183		}
184		user, err := butwhatabout(args[1])
185		if err != nil {
186			fmt.Printf("user not found\n")
187			return
188		}
189		row := db.QueryRow("select honkerid from honkers where xid = ? and userid = ? and flavor in ('sub')", args[2], user.ID)
190		var honkerid int64
191		err = row.Scan(&honkerid)
192		if err != nil {
193			fmt.Printf("sorry couldn't find them\n")
194			return
195		}
196		unfollowyou(user, honkerid, true)
197	case "sendmsg":
198		if len(args) < 4 {
199			fmt.Printf("usage: honk send username filename rcpt\n")
200			return
201		}
202		user, err := butwhatabout(args[1])
203		if err != nil {
204			fmt.Printf("user not found\n")
205			return
206		}
207		data, err := os.ReadFile(args[2])
208		if err != nil {
209			fmt.Printf("can't read file\n")
210			return
211		}
212		deliverate(user.ID, args[3], data)
213	case "cleanup":
214		arg := "30"
215		if len(args) > 1 {
216			arg = args[1]
217		}
218		cleanupdb(arg)
219	case "unplug":
220		if len(args) < 2 {
221			fmt.Printf("usage: honk unplug servername\n")
222			return
223		}
224		name := args[1]
225		unplugserver(name)
226	case "backup":
227		if len(args) < 2 {
228			fmt.Printf("usage: honk backup dirname\n")
229			return
230		}
231		name := args[1]
232		svalbard(name)
233	case "ping":
234		if len(args) < 3 {
235			fmt.Printf("usage: honk ping (from username) (to username or url)\n")
236			return
237		}
238		name := args[1]
239		targ := args[2]
240		user, err := butwhatabout(name)
241		if err != nil {
242			elog.Printf("unknown user")
243			return
244		}
245		ping(user, targ)
246	case "run":
247		serve()
248	case "backend":
249		backendServer()
250	case "test":
251		ElaborateUnitTests()
252	default:
253		elog.Fatal("unknown command")
254	}
255}