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Alexander Andreev 2022-06-27 04:38:09 +04:00
commit cc0c97fa23
Signed by: Arav
GPG Key ID: 0388CC8FAA51063F
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bin/*
!bin/.keep
.vscode

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Copyright (c) 2022 Alexander "Arav" Andreev <me@arav.top>
Permission is hereby granted, free of charge, to any person obtaining a copy of this software and associated documentation files (the "Software"), to deal in the Software without restriction, including without limitation the rights to use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of the Software, and to permit persons to whom the Software is furnished to do so, subject to the following conditions:
The above copyright notice, this permission notice and the word "NIGGER" shall be included in all copies or substantial portions of the Software.
THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.

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Apache License
Version 2.0, January 2004
http://www.apache.org/licenses/
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TARGET=dwelling-files
SYSCTL=${shell which systemctl}
SYSDDIR_=${shell pkg-config systemd --variable=systemdsystemunitdir}
SYSDDIR=${SYSDDIR_:/%=%}
DESTDIR=/
LDFLAGS=-ldflags "-s -w" -tags osusergo,netgo
all: ${TARGET}
.PHONY: ${TARGET}
${TARGET}:
go build -o bin/$@ ${LDFLAGS} cmd/$@/main.go
run:
bin/${TARGET} -path /srv/ftp -listen 127.0.0.1:19135
install:
install -Dm 0755 bin/${TARGET} ${DESTDIR}usr/bin/${TARGET}
install -Dm 0644 LICENSE ${DESTDIR}usr/share/licenses/${TARGET}/LICENSE
install -Dm 0644 init/systemd/${TARGET}.service ${DESTDIR}${SYSDDIR}/${TARGET}.service
uninstall:
rm ${DESTDIR}usr/bin/${TARGET}
rm ${DESTDIR}usr/share/licenses/${TARGET}/LICENSE
rm ${DESTDIR}${SYSDDIR}/${TARGET}.service

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# Maintainer: Alexander "Arav" Andreev <me@arav.top>
pkgname=dwelling-files-git
pkgver=22.26.0
pkgrel=1
pkgdesc="Arav's dwelling / Files"
arch=('i686' 'x86_64' 'arm' 'armv6h' 'armv7h' 'aarch64')
url="https://git.arav.top/Arav/dwelling-files"
license=('MIT')
groups=()
depends=()
makedepends=('git' 'go')
provides=('dwelling-files')
conflicts=('dwelling-files')
replaces=()
backup=()
options=()
install=
source=('dwelling-files-git::git+https://git.arav.top/Arav/dwelling-files.git')
noextract=()
md5sums=('SKIP')
build() {
cd "$srcdir/$pkgname"
make DESTDIR="$pkgdir/"
}
package() {
cd "$srcdir/$pkgname"
make DESTDIR="$pkgdir/" install
}

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package main
import (
"dwelling-files/internal/handlers"
"dwelling-files/pkg/server"
"flag"
"fmt"
"log"
"net/netip"
"os"
"os/signal"
"strings"
"syscall"
)
var listenAddress *string = flag.String("listen", "/var/run/dwelling-files/f.sock", "listen address (ip:port|unix_path)")
var directoryPath *string = flag.String("path", "/srv/ftp", "path to file share")
var showVersion *bool = flag.Bool("v", false, "show version")
func main() {
flag.Parse()
log.SetFlags(0)
if *showVersion {
fmt.Println("dwelling-files ver. 22.26.0\nCopyright (c) 2022 Alexander \"Arav\" Andreev <me@arav.top>")
return
}
hand := handlers.New(directoryPath)
srv := server.NewHttpServer()
srv.ServeStatic("/assets/*filepath", hand.AssetsFS())
srv.GET("/robots.txt", hand.Robots)
srv.GET("/*filepath", hand.Index)
var network string
if !strings.ContainsRune(*listenAddress, ':') {
network = "unix"
defer os.Remove(*listenAddress)
} else {
ap, err := netip.ParseAddrPort(*listenAddress)
if err != nil {
log.Fatalln(err)
}
if ap.Addr().Is4() {
network = "tcp4"
} else if ap.Addr().Is6() {
network = "tcp6"
}
}
if err := srv.Start(network, *listenAddress); err != nil {
log.Fatalln(err)
}
doneSignal := make(chan os.Signal, 1)
signal.Notify(doneSignal, os.Interrupt, syscall.SIGINT, syscall.SIGTERM)
<-doneSignal
if err := srv.Stop(); err != nil {
log.Fatalln(err)
}
}

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module dwelling-files
go 1.17
require github.com/julienschmidt/httprouter v1.3.0

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github.com/julienschmidt/httprouter v1.3.0 h1:U0609e9tgbseu3rBINet9P48AI/D3oJs4dN7jwJOQ1U=
github.com/julienschmidt/httprouter v1.3.0/go.mod h1:JR6WtHb+2LUe8TCKY3cZOxFyyO8IZAc4RVcycCCAKdM=

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init/systemd/dwelling-files.service Executable file
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[Unit]
Description=dwelling-files
After=network-online.target
[Service]
Type=simple
Restart=on-failure
User=dwfiles
Group=dwfiles
ExecStart=/usr/bin/dwelling-files -conf /etc/dwelling/files.yaml
ReadOnlyPaths=/
NoExecPaths=/
ExecPaths=/usr/bin/dwelling-files /usr/lib64
LogsDirectory=dwelling-files
RuntimeDirectory=dwelling-files
AmbientCapabilities=
CapabilityBoundingSet=
LockPersonality=true
MemoryDenyWriteExecute=true
NoNewPrivileges=true
PrivateDevices=true
ProtectClock=true
ProtectControlGroups=true
ProtectHome=true
ProtectKernelLogs=true
ProtectKernelModules=true
ProtectKernelTunables=true
ProtectSystem=strict
RestrictAddressFamilies=AF_INET AF_INET6 AF_UNIX
RestrictNamespaces=true
RestrictRealtime=true
RestrictSUIDSGID=true
SystemCallArchitectures=native
[Install]
WantedBy=multi-user.target

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package handlers
import (
"dwelling-files/pkg/files"
"dwelling-files/web"
"net/http"
)
type IndexData struct {
MainSite string
CurrentPath string
FilesTotalCount int64
FilesTotalSize string
DirectoryCount int64
Items []files.DirEntry
}
type FilesHandlers struct {
directoryPath string
}
func New(directoryPath *string) *FilesHandlers {
return &FilesHandlers{
directoryPath: *directoryPath}
}
func (FilesHandlers) AssetsFS() http.FileSystem {
return web.Assets()
}
func (FilesHandlers) Robots(w http.ResponseWriter, r *http.Request) {
fc, _ := web.AssetsGetFile("robots.txt")
w.Write(fc)
}
func (h *FilesHandlers) Index(w http.ResponseWriter, r *http.Request) {
currentPath := ""
var totalFiles int64 = 0
var totalFilesSize int64 = 0
var totalDirectories int64 = 0
web.Index(r.Host, currentPath, totalFiles, totalFilesSize, totalDirectories, nil, r, w)
}

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package files
import (
"io/fs"
"net/url"
"path/filepath"
"time"
)
const FileDateFormat = "2006-01-02 15:04:05 MST"
type DirStats struct {
Files int64
FilesSize string
Directories int64
}
type DirEntry struct {
Name string
Link string
Datetime time.Time
Size string
}
func ScanDirectory(path string) (entries []DirEntry, stats DirStats, err error) {
var dirEntries []DirEntry = make([]DirEntry, 0)
var fileEntries []DirEntry = make([]DirEntry, 0)
var totalFilesSize int64 = 0
if err = filepath.Walk(path, func(path string, info fs.FileInfo, err error) error {
if err != nil {
return err
}
if info.IsDir() {
dirEntries = append(dirEntries, DirEntry{
Name: info.Name(),
Link: url.PathEscape("/files"),
Datetime: info.ModTime(),
Size: "DIR",
})
stats.Directories++
} else {
_, _, sz := convertFileSize(info.Size())
fileEntries = append(fileEntries, DirEntry{
Name: info.Name(),
Link: url.PathEscape("/files"),
Datetime: info.ModTime(),
Size: sz,
})
totalFilesSize += info.Size()
stats.Files++
}
return nil
}); err != nil {
return
}
_, _, sz := convertFileSize(totalFilesSize)
stats.FilesSize = sz
entries = append(entries, dirEntries...)
entries = append(entries, fileEntries...)
return
}

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package files
import (
"strconv"
"strings"
)
var sizeSuffixes = [...]string{"B", "KiB", "MiB", "GiB", "TiB"}
// convertFileSize converts size in bytes down to biggest units it represents.
// Returns converted size, unit and, a concatenation of size and unit
func convertFileSize(size int64) (float64, string, string) {
var idx int
var fSize float64 = float64(size)
for idx = 0; fSize >= 1024; fSize /= 1024 {
idx++
}
fSizeStr := strconv.FormatFloat(fSize, 'f', 3, 64)
fSizeStr = strings.TrimRight(fSizeStr, "0")
fSizeStr = strings.TrimSuffix(fSizeStr, ".")
return fSize, sizeSuffixes[idx], fSizeStr + " " + sizeSuffixes[idx]
}

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package server
import (
"context"
"log"
"net"
"net/http"
"os"
"time"
"github.com/julienschmidt/httprouter"
)
type HttpServer struct {
server *http.Server
router *httprouter.Router
}
func NewHttpServer() *HttpServer {
r := httprouter.New()
return &HttpServer{
server: &http.Server{
ReadTimeout: 3 * time.Second,
WriteTimeout: 3 * time.Second,
Handler: r,
},
router: r,
}
}
func (s *HttpServer) GET(path string, handler http.HandlerFunc) {
s.router.Handler(http.MethodGet, path, handler)
}
func (s *HttpServer) POST(path string, handler http.HandlerFunc) {
s.router.Handler(http.MethodPost, path, handler)
}
func (s *HttpServer) ServeStatic(path string, fsys http.FileSystem) {
s.router.ServeFiles(path, fsys)
}
func (s *HttpServer) SetNotFoundHandler(handler http.HandlerFunc) {
s.router.NotFound = handler
}
// GetURLParam wrapper around underlying router for getting URL parameters.
func GetURLParam(r *http.Request, param string) string {
return httprouter.ParamsFromContext(r.Context()).ByName(param)
}
func (s *HttpServer) Start(network, address string) error {
listener, err := net.Listen(network, address)
if err != nil {
return err
}
if listener.Addr().Network() == "unix" {
os.Chmod(address, 0777)
}
go func() {
if err = s.server.Serve(listener); err != nil && err != http.ErrServerClosed {
log.Fatalln(err)
}
}()
return nil
}
func (s *HttpServer) Stop() error {
ctx, cancel := context.WithTimeout(context.Background(), 10*time.Second)
defer cancel()
if err := s.server.Shutdown(ctx); err != nil {
return err
}
return nil
}

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package utils
import (
"net/http"
"strings"
"time"
)
// MainSite returns homepage address depending on network used.
func MainSite(host string) string {
if strings.Contains(host, "i2p") {
return "http://arav.i2p"
} else if strings.Contains(host, "onion") {
return "http://moq7aejnf4xk5k2bkaltli3ftkhusy2mbrd3pj23nrca343ku2mgk4yd.onion"
}
return "https://arav.top"
}
// ToClientTimezone converts given time to timezone set in a
// X-Client-Timezone header. If this header is not set, then
// converts to UTC.
func ToClientTimezone(t time.Time, r *http.Request) time.Time {
if tz := r.Header.Get("X-Client-Timezone"); tz != "" {
loc, err := time.LoadLocation(tz)
if err != nil {
return t.UTC()
}
return t.In(loc)
}
return t.UTC()
}

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web/assets/js/main.js Normal file
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User-agent: *
Disallow: /assets/
Disallow: /files/

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web/index.jade.go Normal file
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// Code generated by "jade.go"; DO NOT EDIT.
package web
import (
"dwelling-files/pkg/files"
"dwelling-files/pkg/utils"
"fmt"
"html"
"io"
"net/http"
"strconv"
)
const (
index__0 = `<!DOCTYPE html><html lang="en"><head><title>Arav's dwelling / Files</title><meta charset="utf-8"/><meta http-equiv="X-UA-Compatible" content="IE=edge"/><meta name="viewport" content="width=device-width, initial-scale=1.0"/><meta name="theme-color" content="#cd2682"/><meta name="description" content="My file share."/><link rel="icon" type="image/svg+xml" href="/shared/img/favicon.svg" sizes="any"/><link href="/assets/css/main.css" rel="stylesheet"/><script src="/assets/js/main.js" defer=""></script></head><body><header><svg id="logo" viewBox="0 -25 216 40"><text class="logo">Arav's dwelling</text><text class="under" y="11">Welcome to my sacred place, wanderer</text></svg><nav><a href="`
index__1 = `">Back to main website</a><h1>Files</h1></nav></header><section id="files"><span id="current-path">`
index__2 = `</span><p>Files: `
index__3 = ` (`
index__4 = `); Directories: `
index__5 = `.</p><table><thead><tr><th>Name</th><th>Date</th><th>Size</th></tr></thead><tbody><tr><td><a href="../">../</a></td></tr>`
index__6 = `</tbody></table></section><section id="privacy"><h2>Privacy statements</h2><p>I collect access logs that include access date and time, IP-address, User-Agent, referer URL that tells me where have you came from, request that you sent to me. In addition there are GeoIP information added based on your IP-address that includes country, region, and city for my convenience.</p><p>This site makes use of JavaScript purely for convenient functionality, like being able to watch video, listen to music, and look images in an overlay without the need to open a file in a new tab or return back.</p></section><footer>2017&mdash;2022 Arav &lt;<a href="mailto:me@arav.top">me@arav.top</a>&gt;</footer><div id="overlay"></div></body></html>`
index__7 = `<tr><td><a href="`
index__8 = `">`
index__9 = `</a></td><td>`
index__10 = `</td><td>`
index__11 = `</td></tr>`
)
func Index(mainSite, currentPath string, totalFiles, totalFilesSize, totalDirectories int64, items *[]files.DirEntry, r *http.Request, wr io.Writer) {
buffer := &WriterAsBuffer{wr}
buffer.WriteString(index__0)
buffer.WriteString(html.EscapeString(mainSite))
buffer.WriteString(index__1)
buffer.WriteString(currentPath)
buffer.WriteString(index__2)
buffer.WriteString(html.EscapeString(strconv.FormatInt(totalFiles, 10)))
buffer.WriteString(index__3)
buffer.WriteString(html.EscapeString(strconv.FormatInt(totalFilesSize, 10)))
buffer.WriteString(index__4)
buffer.WriteString(html.EscapeString(strconv.FormatInt(totalDirectories, 10)))
buffer.WriteString(index__5)
for _, item := range *items {
buffer.WriteString(index__7)
buffer.WriteString(html.EscapeString(fmt.Sprintf("%v", item.Link)))
buffer.WriteString(index__8)
buffer.WriteString(html.EscapeString(fmt.Sprintf("%v", item.Name)))
buffer.WriteString(index__9)
buffer.WriteString(utils.ToClientTimezone(item.Datetime, r).Format(files.FileDateFormat))
buffer.WriteString(index__10)
buffer.WriteString(html.EscapeString(fmt.Sprintf("%v", item.Size)))
buffer.WriteString(index__11)
}
buffer.WriteString(index__6)
}

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// Code generated by "jade.go"; DO NOT EDIT.
package web
import (
"bytes"
"io"
"strconv"
)
var (
escaped = []byte{'<', '>', '"', '\'', '&'}
replacing = []string{"&lt;", "&gt;", "&#34;", "&#39;", "&amp;"}
)
func WriteEscString(st string, buffer *WriterAsBuffer) {
for i := 0; i < len(st); i++ {
if n := bytes.IndexByte(escaped, st[i]); n >= 0 {
buffer.WriteString(replacing[n])
} else {
buffer.WriteByte(st[i])
}
}
}
type WriterAsBuffer struct {
io.Writer
}
func (w *WriterAsBuffer) WriteString(s string) (n int, err error) {
n, err = w.Write([]byte(s))
return
}
func (w *WriterAsBuffer) WriteByte(b byte) (err error) {
_, err = w.Write([]byte{b})
return
}
type stringer interface {
String() string
}
func WriteAll(a interface{}, escape bool, buffer *WriterAsBuffer) {
switch v := a.(type) {
case string:
if escape {
WriteEscString(v, buffer)
} else {
buffer.WriteString(v)
}
case int:
WriteInt(int64(v), buffer)
case int8:
WriteInt(int64(v), buffer)
case int16:
WriteInt(int64(v), buffer)
case int32:
WriteInt(int64(v), buffer)
case int64:
WriteInt(v, buffer)
case uint:
WriteUint(uint64(v), buffer)
case uint8:
WriteUint(uint64(v), buffer)
case uint16:
WriteUint(uint64(v), buffer)
case uint32:
WriteUint(uint64(v), buffer)
case uint64:
WriteUint(v, buffer)
case float32:
buffer.WriteString(strconv.FormatFloat(float64(v), 'f', -1, 64))
case float64:
buffer.WriteString(strconv.FormatFloat(v, 'f', -1, 64))
case bool:
WriteBool(v, buffer)
case stringer:
if escape {
WriteEscString(v.String(), buffer)
} else {
buffer.WriteString(v.String())
}
default:
buffer.WriteString("\n<<< unprinted type, fmt.Stringer implementation needed >>>\n")
}
}
func ternary(condition bool, iftrue, iffalse interface{}) interface{} {
if condition {
return iftrue
} else {
return iffalse
}
}
// Used part of go source:
// https://github.com/golang/go/blob/master/src/strconv/itoa.go
func WriteUint(u uint64, buffer *WriterAsBuffer) {
var a [64 + 1]byte
i := len(a)
if ^uintptr(0)>>32 == 0 {
for u > uint64(^uintptr(0)) {
q := u / 1e9
us := uintptr(u - q*1e9)
for j := 9; j > 0; j-- {
i--
qs := us / 10
a[i] = byte(us - qs*10 + '0')
us = qs
}
u = q
}
}
us := uintptr(u)
for us >= 10 {
i--
q := us / 10
a[i] = byte(us - q*10 + '0')
us = q
}
i--
a[i] = byte(us + '0')
buffer.Write(a[i:])
}
func WriteInt(i int64, buffer *WriterAsBuffer) {
if i < 0 {
buffer.WriteByte('-')
i = -i
}
WriteUint(uint64(i), buffer)
}
func WriteBool(b bool, buffer *WriterAsBuffer) {
if b {
buffer.WriteString("true")
return
}
buffer.WriteString("false")
}

49
web/templates/index.jade Normal file
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@ -0,0 +1,49 @@
:go:func Index(mainSite, currentPath string, totalFiles, totalFilesSize, totalDirectories int64, items *[]files.DirEntry, r *http.Request)
:go:import "dwelling-files/pkg/files"
:go:import "dwelling-files/pkg/utils"
doctype html
html(lang='en')
head
title Arav's dwelling / Files
meta(charset='utf-8')
meta(http-equiv='X-UA-Compatible' content='IE=edge')
meta(name='viewport' content='width=device-width, initial-scale=1.0')
meta(name='theme-color' content='#cd2682')
meta(name='description' content='My file share.')
link(rel='icon' type='image/svg+xml' href='/shared/img/favicon.svg' sizes='any')
link(href='/assets/css/main.css' rel='stylesheet')
script(src='/assets/js/main.js' defer='')
body
header
svg#logo(viewBox='0 -25 216 40')
text.logo Arav's dwelling
text.under(y='11') Welcome to my sacred place, wanderer
nav
a(href=mainSite) Back to main website
h1 Files
section#files
span#current-path!= currentPath
p Files: #{totalFiles} (#{totalFilesSize}); Directories: #{totalDirectories}.
table
thead
tr
th Name
th Date
th Size
tbody
tr
td #[a(href="../") ../]
each item in *items
tr
td #[a(href=item.Link) #{item.Name}]
td!= utils.ToClientTimezone(item.Datetime, r).Format(files.FileDateFormat)
td= item.Size
section#privacy
h2 Privacy statements
p I collect access logs that include access date and time, IP-address, User-Agent, referer URL that tells me where have you came from, request that you sent to me. In addition there are GeoIP information added based on your IP-address that includes country, region, and city for my convenience.
p This site makes use of JavaScript purely for convenient functionality, like being able to watch video, listen to music, and look images in an overlay without the need to open a file in a new tab or return back.
footer
| 2017&mdash;2022 Arav &lt;#[a(href='mailto:me@arav.top') me@arav.top]&gt;
div#overlay

23
web/web.go Normal file
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package web
import (
"embed"
"io/fs"
"net/http"
)
//go:generate $GOPATH/bin/jade -pkg=web -stdlib -stdbuf -writer templates/index.jade
//go:embed assets
var assetsDir embed.FS
func Assets() http.FileSystem {
f, _ := fs.Sub(assetsDir, "assets")
return http.FS(f)
}
func AssetsGetFile(path string) ([]byte, error) {
return assetsDir.ReadFile("assets/" + path)
}
func convertTimezone()