├── .travis.yml ├── LICENSE ├── README.md ├── doc.go ├── embed ├── embed.go └── embed_test.go ├── example ├── main.go ├── static.go └── static_test.go ├── main.go └── testdata ├── LICENSE.txt ├── README.txt ├── assets ├── css │ ├── main.css │ └── noscript.css ├── js │ ├── breakpoints.min.js │ ├── browser.min.js │ ├── jquery.min.js │ ├── jquery.scrollex.min.js │ ├── jquery.scrolly.min.js │ ├── main.js │ └── util.js └── txt │ └── 1.txt ├── elements.html ├── empty.expect ├── empty ├── 1 └── 2 ├── generic.html ├── images ├── bg.jpg ├── overlay.png ├── pic01.jpg ├── pic02.jpg ├── pic03.jpg ├── pic04.jpg ├── pic05.jpg ├── pic06.jpg ├── pic07.jpg ├── pic08.jpg └── pic09.jpg └── index.html /.travis.yml: -------------------------------------------------------------------------------- 1 | language: go 2 | matrix: 3 | include: 4 | - go: 1.10.x 5 | - go: 1.11.x 6 | 7 | install: 8 | - go get golang.org/x/lint/golint 9 | - go get ./... 10 | - go install . 11 | 12 | script: 13 | - go generate ./... 14 | - esc -o static.go testdata 15 | - go test -v ./... 16 | - go vet ./... 17 | - LINT=$(golint ./...) && echo $LINT 18 | - test -z "$LINT" 19 | - GOFMT=$(gofmt -s -d .) && echo $GOFMT 20 | - test -z "$GOFMT" 21 | -------------------------------------------------------------------------------- /LICENSE: -------------------------------------------------------------------------------- 1 | The MIT License (MIT) 2 | 3 | Copyright (c) 2014 Matt Jibson 4 | 5 | Permission is hereby granted, free of charge, to any person obtaining a copy of 6 | this software and associated documentation files (the "Software"), to deal in 7 | the Software without restriction, including without limitation the rights to 8 | use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of 9 | the Software, and to permit persons to whom the Software is furnished to do so, 10 | subject to the following conditions: 11 | 12 | The above copyright notice and this permission notice shall be included in all 13 | copies or substantial portions of the Software. 14 | 15 | THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR 16 | IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS 17 | FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR 18 | COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER 19 | IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN 20 | CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. 21 | -------------------------------------------------------------------------------- /README.md: -------------------------------------------------------------------------------- 1 | ## DEPRECATED 2 | 3 | Stop using this and switch to [embed](https://pkg.go.dev/embed) now in the standard library. 4 | 5 | # esc 6 | 7 | [![GoDoc](https://godoc.org/github.com/mjibson/esc?status.svg)](https://godoc.org/github.com/mjibson/esc) 8 | 9 | esc embeds files into go programs and provides http.FileSystem interfaces 10 | to them. 11 | 12 | It adds all named files or files recursively under named directories at the 13 | path specified. The output file provides an http.FileSystem interface with 14 | zero dependencies on packages outside the standard library. 15 | 16 | ## Installation 17 | 18 | `go get -u github.com/mjibson/esc` 19 | 20 | ## Usage 21 | 22 | `esc [flag] [name ...]` 23 | 24 | The flags are: 25 | 26 | ``` 27 | -o="" 28 | output filename, defaults to stdout 29 | -pkg="main" 30 | package name of output file, defaults to main 31 | -prefix="" 32 | strip given prefix from filenames 33 | -ignore="" 34 | regular expression for files to ignore 35 | -include="" 36 | regular expression for files to include 37 | -modtime="" 38 | Unix timestamp to override as modification time for all files 39 | -private 40 | unexport functions by prefixing them with esc, e.g. FS -> escFS 41 | -no-compress 42 | do not compress files 43 | ``` 44 | 45 | ## Accessing Embedded Files 46 | 47 | After producing an output file, the assets may be accessed with the FS() 48 | function, which takes a flag to use local assets instead (for local 49 | development). 50 | 51 | * (_esc)?FS(Must)?(Byte|String) returns an asset as a (byte slice|string). 52 | * (_esc)?FSMust(Byte|String) panics if the asset is not found. 53 | 54 | ## Go Generate 55 | 56 | esc can be invoked by go generate: 57 | 58 | `//go:generate esc -o static.go -pkg server static` 59 | 60 | ## Example 61 | 62 | Embedded assets can be served with HTTP using the http.FileServer. 63 | Assuming you have a directory structure similar to the following: 64 | 65 | ``` 66 | . 67 | ├── main.go 68 | └── static 69 | ├── css 70 | │   └── style.css 71 | └── index.html 72 | ``` 73 | 74 | Where main.go contains: 75 | 76 | ``` 77 | package main 78 | 79 | import ( 80 | "log" 81 | "net/http" 82 | ) 83 | 84 | func main() { 85 | // FS() is created by esc and returns a http.Filesystem. 86 | http.Handle("/static/", http.FileServer(FS(false))) 87 | log.Fatal(http.ListenAndServe(":8080", nil)) 88 | } 89 | 90 | ``` 91 | 92 | 1. Generate the embedded data: 93 | `esc -o static.go static` 94 | 2. Start the server: 95 | `go run main.go static.go` 96 | 3. Access http://localhost:8080/static/index.html to view the files. 97 | 98 | You can see worked example in [example](example) dir 99 | just run it as 100 | `go run example/main.go example/static.go` 101 | -------------------------------------------------------------------------------- /doc.go: -------------------------------------------------------------------------------- 1 | /* 2 | 3 | esc embeds files into go programs and provides http.FileSystem interfaces 4 | to them. 5 | 6 | It adds all named files or files recursively under named directories at the 7 | path specified. The output file provides an http.FileSystem interface with 8 | zero dependencies on packages outside the standard library. 9 | 10 | Usage: 11 | esc [flag] [name ...] 12 | 13 | The flags are: 14 | -o="" 15 | output filename, defaults to stdout 16 | -pkg="main" 17 | package name of output file, defaults to main 18 | -prefix="" 19 | strip given prefix from filenames 20 | -ignore="" 21 | regular expression for files to ignore 22 | -include="" 23 | regular expression for files to include 24 | -modtime="" 25 | Unix timestamp to override as modification time for all files 26 | -private 27 | unexport functions by prefixing them with esc, e.g. FS -> escFS 28 | -no-compress 29 | do not compress files 30 | 31 | Accessing Embedded Files 32 | 33 | After producing an output file, the assets may be accessed with the FS() 34 | function, which takes a flag to use local assets instead (for local 35 | development). 36 | 37 | FS(Must)?(Byte|String) returns an asset as a (byte slice|string). 38 | FSMust(Byte|String) panics if the asset is not found. 39 | 40 | Go Generate 41 | 42 | esc can be invoked by go generate: 43 | 44 | //go:generate esc -o static.go -pkg server static 45 | 46 | Example 47 | 48 | Embedded assets can be served with HTTP using the http.FileServer. 49 | Assuming you have a directory structure similar to the following: 50 | 51 | . 52 | ├── main.go 53 | └── static 54 | ├── css 55 | │   └── style.css 56 | └── index.html 57 | 58 | Where main.go contains: 59 | 60 | package main 61 | 62 | import ( 63 | "log" 64 | "net/http" 65 | ) 66 | 67 | func main() { 68 | // FS() is created by esc and returns a http.Filesystem. 69 | http.Handle("/static/", http.FileServer(FS(false))) 70 | log.Fatal(http.ListenAndServe(":8080", nil)) 71 | } 72 | 73 | 1. Generate the embedded data: 74 | esc -o static.go static 75 | 2. Start the server: 76 | go run main.go static.go 77 | 3. Access http://localhost:8080/static/index.html to view the files. 78 | 79 | */ 80 | package main 81 | -------------------------------------------------------------------------------- /embed/embed.go: -------------------------------------------------------------------------------- 1 | // Package embed implements all file embedding logic for github.com/mjibson/esc. 2 | package embed 3 | 4 | import ( 5 | "bytes" 6 | "compress/gzip" 7 | "encoding/base64" 8 | "fmt" 9 | "io" 10 | "io/ioutil" 11 | "os" 12 | "path" 13 | "path/filepath" 14 | "regexp" 15 | "sort" 16 | "strconv" 17 | "strings" 18 | "text/template" 19 | 20 | "github.com/pkg/errors" 21 | "golang.org/x/tools/imports" 22 | ) 23 | 24 | // Config contains all information needed to run esc. 25 | type Config struct { 26 | // OutputFile is the file name to write output, else stdout. 27 | OutputFile string 28 | // Package name for the generated file. 29 | Package string 30 | // Prefix is stripped from filenames. 31 | Prefix string 32 | // Ignore is the regexp for files we should ignore (for example `\.DS_Store`). 33 | Ignore string 34 | // Include is the regexp for files to include. If provided, only files that 35 | // match will be included. 36 | Include string 37 | // ModTime is the Unix timestamp to override as modification time for all files. 38 | ModTime string 39 | // Private, if true, causes autogenerated functions to be unexported. 40 | Private bool 41 | // NoCompression, if true, stores the files without compression. 42 | NoCompression bool 43 | // Invocation, if set, is added to the invocation string in the generated template. 44 | Invocation string 45 | 46 | // Files is the list of files or directories to embed. 47 | Files []string 48 | } 49 | 50 | var modTime *int64 51 | 52 | var tmpl = template.Must(template.New("").Parse(fileTemplate)) 53 | 54 | type templateParams struct { 55 | Invocation string 56 | PackageName string 57 | FunctionPrefix string 58 | Files []*_escFile 59 | Dirs []*_escDir 60 | } 61 | 62 | type _escFile struct { 63 | Name string 64 | BaseName string 65 | Data []byte 66 | Local string 67 | ModTime int64 68 | Compressed string 69 | 70 | fileinfo os.FileInfo 71 | } 72 | 73 | type _escDir struct { 74 | Name string 75 | BaseName string 76 | Local string 77 | ChildFileNames []string 78 | } 79 | 80 | // Run executes a Config. 81 | func Run(conf *Config, out io.Writer) error { 82 | var err error 83 | if conf.ModTime != "" { 84 | i, err := strconv.ParseInt(conf.ModTime, 10, 64) 85 | if err != nil { 86 | return fmt.Errorf("modtime must be an integer: %v", err) 87 | } 88 | modTime = &i 89 | } 90 | 91 | alreadyPrepared := make(map[string]bool, 10) 92 | escFiles := make([]*_escFile, 0, 10) 93 | prefix := filepath.ToSlash(conf.Prefix) 94 | var ignoreRegexp *regexp.Regexp 95 | if conf.Ignore != "" { 96 | ignoreRegexp, err = regexp.Compile(conf.Ignore) 97 | if err != nil { 98 | return err 99 | } 100 | } 101 | var includeRegexp *regexp.Regexp 102 | if conf.Include != "" { 103 | includeRegexp, err = regexp.Compile(conf.Include) 104 | if err != nil { 105 | return err 106 | } 107 | } 108 | gzipLevel := gzip.BestCompression 109 | if conf.NoCompression { 110 | gzipLevel = gzip.NoCompression 111 | } 112 | directories := make([]*_escDir, 0, 10) 113 | for _, base := range conf.Files { 114 | files := []string{base} 115 | for len(files) > 0 { 116 | fname := files[0] 117 | files = files[1:] 118 | if ignoreRegexp != nil && ignoreRegexp.MatchString(fname) { 119 | continue 120 | } 121 | f, err := os.Open(fname) 122 | if err != nil { 123 | return err 124 | } 125 | fi, err := f.Stat() 126 | if err != nil { 127 | return err 128 | } 129 | fpath := filepath.ToSlash(fname) 130 | n := canonicFileName(fname, prefix) 131 | if fi.IsDir() { 132 | fis, err := f.Readdir(0) 133 | if err != nil { 134 | return err 135 | } 136 | dir := &_escDir{ 137 | Name: n, 138 | BaseName: path.Base(n), 139 | Local: fpath, 140 | ChildFileNames: make([]string, 0, len(fis)), 141 | } 142 | for _, fi := range fis { 143 | childFName := filepath.Join(fname, fi.Name()) 144 | files = append(files, childFName) 145 | if ignoreRegexp != nil && ignoreRegexp.MatchString(childFName) { 146 | continue 147 | } 148 | if includeRegexp == nil || includeRegexp.MatchString(childFName) { 149 | dir.ChildFileNames = append(dir.ChildFileNames, canonicFileName(filepath.Join(fname, fi.Name()), prefix)) 150 | } 151 | } 152 | sort.Strings(dir.ChildFileNames) 153 | directories = append(directories, dir) 154 | } else if includeRegexp == nil || includeRegexp.MatchString(fname) { 155 | b, err := ioutil.ReadAll(f) 156 | if err != nil { 157 | return errors.Wrap(err, "readAll return err") 158 | } 159 | if alreadyPrepared[n] { 160 | return fmt.Errorf("%s, %s: duplicate Name after prefix removal", n, fpath) 161 | } 162 | escFile := &_escFile{ 163 | Name: n, 164 | BaseName: path.Base(n), 165 | Data: b, 166 | Local: fpath, 167 | fileinfo: fi, 168 | ModTime: fi.ModTime().Unix(), 169 | } 170 | if modTime != nil { 171 | escFile.ModTime = *modTime 172 | } 173 | if err := escFile.fillCompressed(gzipLevel); err != nil { 174 | return err 175 | } 176 | escFiles = append(escFiles, escFile) 177 | alreadyPrepared[n] = true 178 | } 179 | f.Close() 180 | } 181 | } 182 | 183 | sort.Slice(escFiles, func(i, j int) bool { return strings.Compare(escFiles[i].Name, escFiles[j].Name) == -1 }) 184 | sort.Slice(directories, func(i, j int) bool { return strings.Compare(directories[i].Name, directories[j].Name) == -1 }) 185 | 186 | functionPrefix := "" 187 | if conf.Private { 188 | functionPrefix = "_esc" 189 | } 190 | 191 | buf := bytes.NewBuffer(nil) 192 | tmpl.Execute(buf, templateParams{ 193 | Invocation: conf.Invocation, 194 | PackageName: conf.Package, 195 | FunctionPrefix: functionPrefix, 196 | Files: escFiles, 197 | Dirs: directories, 198 | }) 199 | 200 | fakeOutFileName := "static.go" 201 | if conf.OutputFile != "" { 202 | fakeOutFileName = conf.OutputFile 203 | } 204 | 205 | data, err := imports.Process(fakeOutFileName, buf.Bytes(), nil) 206 | if err != nil { 207 | return errors.Wrap(err, "imports.Process return error") 208 | } 209 | 210 | fmt.Fprint(out, string(data)) 211 | 212 | return nil 213 | } 214 | 215 | func canonicFileName(fname, prefix string) string { 216 | fpath := filepath.ToSlash(fname) 217 | return path.Join("/", strings.TrimPrefix(fpath, prefix)) 218 | } 219 | 220 | func (f *_escFile) fillCompressed(gzipLevel int) error { 221 | var buf bytes.Buffer 222 | gw, err := gzip.NewWriterLevel(&buf, gzipLevel) 223 | if err != nil { 224 | return err 225 | } 226 | if _, err := gw.Write(f.Data); err != nil { 227 | return err 228 | } 229 | if err := gw.Close(); err != nil { 230 | return err 231 | } 232 | var b bytes.Buffer 233 | b64 := base64.NewEncoder(base64.StdEncoding, &b) 234 | b64.Write(buf.Bytes()) 235 | b64.Close() 236 | res := "\n" 237 | chunk := make([]byte, 80) 238 | for n, _ := b.Read(chunk); n > 0; n, _ = b.Read(chunk) { 239 | res += string(chunk[0:n]) + "\n" 240 | } 241 | 242 | f.Compressed = res 243 | return nil 244 | 245 | } 246 | 247 | const ( 248 | fileTemplate = `// Code generated by "esc{{with .Invocation}} {{.}}{{end}}"; DO NOT EDIT. 249 | 250 | package {{.PackageName}} 251 | 252 | import ( 253 | "bytes" 254 | "compress/gzip" 255 | "encoding/base64" 256 | "io/ioutil" 257 | "net/http" 258 | "os" 259 | "path" 260 | "sync" 261 | "time" 262 | ) 263 | 264 | type _escLocalFS struct{} 265 | 266 | var _escLocal _escLocalFS 267 | 268 | type _escStaticFS struct{} 269 | 270 | var _escStatic _escStaticFS 271 | 272 | type _escDirectory struct { 273 | fs http.FileSystem 274 | name string 275 | } 276 | 277 | type _escFile struct { 278 | compressed string 279 | size int64 280 | modtime int64 281 | local string 282 | isDir bool 283 | 284 | once sync.Once 285 | data []byte 286 | name string 287 | } 288 | 289 | func (_escLocalFS) Open(name string) (http.File, error) { 290 | f, present := _escData[path.Clean(name)] 291 | if !present { 292 | return nil, os.ErrNotExist 293 | } 294 | return os.Open(f.local) 295 | } 296 | 297 | func (_escStaticFS) prepare(name string) (*_escFile, error) { 298 | f, present := _escData[path.Clean(name)] 299 | if !present { 300 | return nil, os.ErrNotExist 301 | } 302 | var err error 303 | f.once.Do(func() { 304 | f.name = path.Base(name) 305 | if f.size == 0 { 306 | return 307 | } 308 | var gr *gzip.Reader 309 | b64 := base64.NewDecoder(base64.StdEncoding, bytes.NewBufferString(f.compressed)) 310 | gr, err = gzip.NewReader(b64) 311 | if err != nil { 312 | return 313 | } 314 | f.data, err = ioutil.ReadAll(gr) 315 | }) 316 | if err != nil { 317 | return nil, err 318 | } 319 | return f, nil 320 | } 321 | 322 | func (fs _escStaticFS) Open(name string) (http.File, error) { 323 | f, err := fs.prepare(name) 324 | if err != nil { 325 | return nil, err 326 | } 327 | return f.File() 328 | } 329 | 330 | func (dir _escDirectory) Open(name string) (http.File, error) { 331 | return dir.fs.Open(dir.name + name) 332 | } 333 | 334 | func (f *_escFile) File() (http.File, error) { 335 | type httpFile struct { 336 | *bytes.Reader 337 | *_escFile 338 | } 339 | return &httpFile{ 340 | Reader: bytes.NewReader(f.data), 341 | _escFile: f, 342 | }, nil 343 | } 344 | 345 | func (f *_escFile) Close() error { 346 | return nil 347 | } 348 | 349 | func (f *_escFile) Readdir(count int) ([]os.FileInfo, error) { 350 | if !f.isDir { 351 | return nil, fmt.Errorf(" escFile.Readdir: '%s' is not directory", f.name) 352 | } 353 | 354 | fis, ok := _escDirs[f.local] 355 | if !ok { 356 | return nil, fmt.Errorf(" escFile.Readdir: '%s' is directory, but we have no info about content of this dir, local=%s", f.name, f.local) 357 | } 358 | limit := count 359 | if count <= 0 || limit > len(fis) { 360 | limit = len(fis) 361 | } 362 | 363 | if len(fis) == 0 && count > 0 { 364 | return nil, io.EOF 365 | } 366 | 367 | return fis[0:limit], nil 368 | } 369 | 370 | 371 | func (f *_escFile) Stat() (os.FileInfo, error) { 372 | return f, nil 373 | } 374 | 375 | func (f *_escFile) Name() string { 376 | return f.name 377 | } 378 | 379 | func (f *_escFile) Size() int64 { 380 | return f.size 381 | } 382 | 383 | func (f *_escFile) Mode() os.FileMode { 384 | return 0 385 | } 386 | 387 | func (f *_escFile) ModTime() time.Time { 388 | return time.Unix(f.modtime, 0) 389 | } 390 | 391 | func (f *_escFile) IsDir() bool { 392 | return f.isDir 393 | } 394 | 395 | func (f *_escFile) Sys() interface{} { 396 | return f 397 | } 398 | 399 | // {{.FunctionPrefix}}FS returns a http.Filesystem for the embedded assets. If useLocal is true, 400 | // the filesystem's contents are instead used. 401 | func {{.FunctionPrefix}}FS(useLocal bool) http.FileSystem { 402 | if useLocal { 403 | return _escLocal 404 | } 405 | return _escStatic 406 | } 407 | 408 | // {{.FunctionPrefix}}Dir returns a http.Filesystem for the embedded assets on a given prefix dir. 409 | // If useLocal is true, the filesystem's contents are instead used. 410 | func {{.FunctionPrefix}}Dir(useLocal bool, name string) http.FileSystem { 411 | if useLocal { 412 | return _escDirectory{fs: _escLocal, name: name} 413 | } 414 | return _escDirectory{fs: _escStatic, name: name} 415 | } 416 | 417 | // {{.FunctionPrefix}}FSByte returns the named file from the embedded assets. If useLocal is 418 | // true, the filesystem's contents are instead used. 419 | func {{.FunctionPrefix}}FSByte(useLocal bool, name string) ([]byte, error) { 420 | if useLocal { 421 | f, err := _escLocal.Open(name) 422 | if err != nil { 423 | return nil, err 424 | } 425 | b, err := ioutil.ReadAll(f) 426 | _ = f.Close() 427 | return b, err 428 | } 429 | f, err := _escStatic.prepare(name) 430 | if err != nil { 431 | return nil, err 432 | } 433 | return f.data, nil 434 | } 435 | 436 | // {{.FunctionPrefix}}FSMustByte is the same as {{.FunctionPrefix}}FSByte, but panics if name is not present. 437 | func {{.FunctionPrefix}}FSMustByte(useLocal bool, name string) []byte { 438 | b, err := {{.FunctionPrefix}}FSByte(useLocal, name) 439 | if err != nil { 440 | panic(err) 441 | } 442 | return b 443 | } 444 | 445 | // {{.FunctionPrefix}}FSString is the string version of {{.FunctionPrefix}}FSByte. 446 | func {{.FunctionPrefix}}FSString(useLocal bool, name string) (string, error) { 447 | b, err := {{.FunctionPrefix}}FSByte(useLocal, name) 448 | return string(b), err 449 | } 450 | 451 | // {{.FunctionPrefix}}FSMustString is the string version of {{.FunctionPrefix}}FSMustByte. 452 | func {{.FunctionPrefix}}FSMustString(useLocal bool, name string) string { 453 | return string({{.FunctionPrefix}}FSMustByte(useLocal, name)) 454 | } 455 | 456 | var _escData = map[string]*_escFile{ 457 | {{ range .Files }} 458 | "{{ .Name }}": { 459 | name: "{{ .BaseName }}", 460 | local: "{{ .Local }}", 461 | size: {{ .Data | len }}, 462 | modtime: {{ .ModTime }}, 463 | compressed: ` + "`" + `{{ .Compressed }}` + "`" + `, 464 | }, 465 | {{ end -}} 466 | {{ range .Dirs }} 467 | "{{ .Name }}": { 468 | name: "{{ .BaseName }}", 469 | local: ` + "`" + `{{ .Local }}` + "`" + `, 470 | isDir: true, 471 | }, 472 | {{ end }} 473 | } 474 | 475 | var _escDirs = map[string][]os.FileInfo{ 476 | {{ range .Dirs }} 477 | "{{ .Local }}": { 478 | {{ range .ChildFileNames -}} 479 | _escData["{{.}}"], 480 | {{ end }} 481 | }, 482 | {{ end }} 483 | } 484 | 485 | ` 486 | ) 487 | -------------------------------------------------------------------------------- /example/main.go: -------------------------------------------------------------------------------- 1 | package main 2 | 3 | //go:generate go run ../main.go -prefix ../testdata -o static.go ../testdata 4 | import ( 5 | "fmt" 6 | "log" 7 | "net/http" 8 | ) 9 | 10 | func main() { 11 | // FS() is created by esc and returns a http.Filesystem. 12 | http.Handle("/", http.FileServer(FS(false))) 13 | fmt.Println("Open http://localhost:8080/ in browser") 14 | log.Fatal(http.ListenAndServe(":8080", nil)) 15 | } 16 | -------------------------------------------------------------------------------- /example/static_test.go: -------------------------------------------------------------------------------- 1 | package main 2 | 3 | import ( 4 | "bytes" 5 | "fmt" 6 | "io/ioutil" 7 | "net/http" 8 | "net/http/httptest" 9 | "reflect" 10 | "sort" 11 | "strings" 12 | "testing" 13 | ) 14 | 15 | func Test_FileServer(t *testing.T) { 16 | s := httptest.NewServer(http.FileServer(FS(false))) 17 | 18 | tests := []struct { 19 | url string 20 | httpStatus int 21 | }{ 22 | {"/", 200}, 23 | {"/index.html", 200}, 24 | {"/index.php", 404}, 25 | {"/assets/css/main.css", 200}, 26 | {"/olololo", 404}, 27 | } 28 | for _, tt := range tests { 29 | t.Run(tt.url, func(t *testing.T) { 30 | resp, err := http.Get(s.URL + tt.url) 31 | if err != nil { 32 | t.Errorf("http.Get for %q. should not return err: %v", tt.url, err) 33 | return 34 | } 35 | if resp.StatusCode != tt.httpStatus { 36 | t.Errorf("Status code for %q. = %v, want %v", tt.url, resp.StatusCode, tt.httpStatus) 37 | } 38 | }) 39 | } 40 | } 41 | 42 | func TestDir_escStatic(t *testing.T) { 43 | testDir(false, t) 44 | } 45 | 46 | func TestDir_escLocal(t *testing.T) { 47 | testDir(true, t) 48 | } 49 | 50 | func testDir(useLocal bool, t *testing.T) { 51 | s := httptest.NewServer(http.FileServer(Dir(useLocal, "/assets"))) 52 | 53 | tests := []struct { 54 | url string 55 | httpStatus int 56 | }{ 57 | {"/", 200}, 58 | {"/css/main.css", 200}, 59 | {"/js/util.js", 200}, 60 | } 61 | for _, tt := range tests { 62 | t.Run(tt.url, func(t *testing.T) { 63 | resp, err := http.Get(s.URL + tt.url) 64 | if err != nil { 65 | t.Errorf("http.Get for %q. should not return err: %v", tt.url, err) 66 | return 67 | } 68 | if resp.StatusCode != tt.httpStatus { 69 | t.Errorf("Status code for %q. = %v, want %v", tt.url, resp.StatusCode, tt.httpStatus) 70 | } 71 | }) 72 | } 73 | } 74 | 75 | func Benchmark_FileServer(b *testing.B) { 76 | benchmarksURLs := []string{ 77 | "/", 78 | "/index.html", 79 | "/assets/css/main.css", 80 | "/ololo", 81 | } 82 | s := httptest.NewServer(http.FileServer(FS(false))) 83 | b.ResetTimer() 84 | for _, url := range benchmarksURLs { 85 | b.Run(url, func(b *testing.B) { 86 | for i := 0; i < b.N; i++ { 87 | _, _ = http.Get(s.URL + url) 88 | } 89 | }) 90 | } 91 | } 92 | 93 | func Test__escStatic_Open(t *testing.T) { 94 | testFSOpen(false, t) 95 | } 96 | 97 | func Test__escLocal_Open(t *testing.T) { 98 | testFSOpen(true, t) 99 | } 100 | 101 | func testFSOpen(useLocal bool, t *testing.T) { 102 | fs := FS(useLocal) 103 | tests := []struct { 104 | name string 105 | wantErr bool 106 | }{ 107 | {"/index.html", false}, 108 | {"/index.php", true}, 109 | {"/assets/css/main.css", false}, 110 | } 111 | for _, tt := range tests { 112 | t.Run(fmt.Sprintf("%s:uselocal=%t", tt.name, useLocal), func(t *testing.T) { 113 | got, err := fs.Open(tt.name) 114 | if (err != nil) != tt.wantErr { 115 | t.Errorf("%q. _escLocalFS.Open() error = %v, wantErr %v", tt.name, err, tt.wantErr) 116 | } 117 | if tt.wantErr { 118 | // because all check after only for case when fs.Open return non-err 119 | return 120 | } 121 | raw, err := ioutil.ReadAll(got) 122 | if err != nil { 123 | t.Errorf("%q. _escLocalFS.Read should not return error. got error = %v,", tt.name, err) 124 | return 125 | } 126 | originalFileRaw, err := ioutil.ReadFile("../testdata" + tt.name) 127 | 128 | if !bytes.Equal(originalFileRaw, raw) { 129 | t.Errorf("%q. _escLocalFS.Open() = %s, want %s", tt.name, raw, originalFileRaw) 130 | } 131 | }) 132 | } 133 | } 134 | 135 | func Test_escFile_Readdir(t *testing.T) { 136 | testFSReaddir(false, t) 137 | } 138 | 139 | func Test_escLocalFS_Readdir(t *testing.T) { 140 | testFSReaddir(true, t) 141 | } 142 | 143 | func testFSReaddir(useLocal bool, t *testing.T) { 144 | fs := FS(useLocal) 145 | tests := []struct { 146 | name string 147 | count int 148 | wantFileNames []string 149 | wantErr bool 150 | }{ 151 | {"/assets/css/main.css", -1, nil, true}, 152 | {"/assets", -1, []string{"css", "js", "txt"}, false}, 153 | {"/assets/css", -1, []string{"main.css", "noscript.css"}, false}, 154 | {"/assets/js", 4, []string{"main.js", "jquery.min.js", "browser.min.js", "breakpoints.min.js"}, false}, 155 | } 156 | for _, tt := range tests { 157 | t.Run(fmt.Sprintf("%s:%d:uselocal=%t", tt.name, tt.count, useLocal), func(t *testing.T) { 158 | f, err := fs.Open(tt.name) 159 | if err != nil { 160 | t.Errorf("%q. _escFile.Open() error = %v, wantErr %v", tt.name, err, tt.wantErr) 161 | return 162 | } 163 | 164 | got, err := f.Readdir(tt.count) 165 | if (err != nil) != tt.wantErr { 166 | t.Errorf("%q. _escFile.Readdir() error = %v, wantErr %v", tt.name, err, tt.wantErr) 167 | return 168 | } 169 | if tt.wantErr { 170 | // because all check after only for case when fs.Open return non-err 171 | return 172 | } 173 | fnames := make([]string, 0, len(got)) 174 | for i := range got { 175 | fnames = append(fnames, got[i].Name()) 176 | } 177 | sort.Strings(fnames) 178 | sort.Strings(tt.wantFileNames) 179 | 180 | if tt.count > -1 { 181 | //workaround for case when we have limit, because of different Readdir cannot return in the same order, and nobody garanty ordering for Readdir 182 | if len(fnames) != len(tt.wantFileNames) { 183 | t.Errorf("%q. _escLocalFS.Readdir() return different counts of res = %d, want %d", tt.name, len(fnames), len(tt.wantFileNames)) 184 | } 185 | return 186 | } 187 | 188 | if !reflect.DeepEqual(fnames, tt.wantFileNames) { 189 | t.Errorf("%q. _escLocalFS.Readdir() = %#v, want %#v", tt.name, fnames, tt.wantFileNames) 190 | } 191 | }) 192 | } 193 | } 194 | 195 | func TestFSMustString_escStatic(t *testing.T) { 196 | testFSMustString(false, t) 197 | } 198 | 199 | func TestFSMustString_escLocal(t *testing.T) { 200 | testFSMustString(true, t) 201 | } 202 | 203 | func testFSMustString(useLocal bool, t *testing.T) { 204 | tests := []struct { 205 | name string 206 | }{ 207 | {"/assets/txt/1.txt"}, 208 | } 209 | for _, tt := range tests { 210 | t.Run(fmt.Sprintf("%s:uselocal=%t", tt.name, useLocal), func(t *testing.T) { 211 | 212 | raw, _ := ioutil.ReadFile("../testdata" + tt.name) 213 | got := FSMustString(useLocal, tt.name) 214 | if strings.Compare(got, string(raw)) != 0 { 215 | t.Errorf("%q. FSMustString() = %s, want %s", tt.name, got, raw) 216 | } 217 | 218 | got2, err := FSString(useLocal, tt.name) 219 | if err != nil { 220 | t.Errorf("%q. FSString() error = %v, but we should not return error here", tt.name, err) 221 | return 222 | } 223 | 224 | if strings.Compare(got, got2) != 0 { 225 | t.Errorf("%q. FSString() must return the same as FSMustString, given = %v, must be = %v", tt.name, got2, got) 226 | } 227 | 228 | }) 229 | } 230 | } 231 | -------------------------------------------------------------------------------- /main.go: -------------------------------------------------------------------------------- 1 | package main 2 | 3 | import ( 4 | "flag" 5 | "log" 6 | "os" 7 | "strings" 8 | 9 | "github.com/mjibson/esc/embed" 10 | ) 11 | 12 | func main() { 13 | conf := &embed.Config{ 14 | Invocation: strings.Join(os.Args[1:], " "), 15 | } 16 | 17 | flag.StringVar(&conf.OutputFile, "o", "", "Output file, else stdout.") 18 | flag.StringVar(&conf.Package, "pkg", "main", "Package.") 19 | flag.StringVar(&conf.Prefix, "prefix", "", "Prefix to strip from filesnames.") 20 | flag.StringVar(&conf.Ignore, "ignore", "", "Regexp for files we should ignore (for example \\\\.DS_Store).") 21 | flag.StringVar(&conf.Include, "include", "", "Regexp for files to include. Only files that match will be included.") 22 | flag.StringVar(&conf.ModTime, "modtime", "", "Unix timestamp to override as modification time for all files.") 23 | flag.BoolVar(&conf.Private, "private", false, "If true, do not export autogenerated functions.") 24 | flag.BoolVar(&conf.NoCompression, "no-compress", false, "If true, do not compress files.") 25 | flag.Parse() 26 | conf.Files = flag.Args() 27 | 28 | var err error 29 | out := os.Stdout 30 | if conf.OutputFile != "" { 31 | if out, err = os.Create(conf.OutputFile); err != nil { 32 | log.Fatal(err) 33 | } 34 | defer out.Close() 35 | } 36 | 37 | if err = embed.Run(conf, out); err != nil { 38 | log.Fatal(err) 39 | } 40 | } 41 | -------------------------------------------------------------------------------- /testdata/LICENSE.txt: -------------------------------------------------------------------------------- 1 | Creative Commons Attribution 3.0 Unported 2 | http://creativecommons.org/licenses/by/3.0/ 3 | 4 | License 5 | 6 | THE WORK (AS DEFINED BELOW) IS PROVIDED UNDER THE TERMS OF THIS CREATIVE COMMONS PUBLIC LICENSE ("CCPL" OR "LICENSE"). 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The rights granted under, and the subject matter referenced, in this License were drafted utilizing the terminology of the Berne Convention for the Protection of Literary and Artistic Works (as amended on September 28, 1979), the Rome Convention of 1961, the WIPO Copyright Treaty of 1996, the WIPO Performances and Phonograms Treaty of 1996 and the Universal Copyright Convention (as revised on July 24, 1971). These rights and subject matter take effect in the relevant jurisdiction in which the License terms are sought to be enforced according to the corresponding provisions of the implementation of those treaty provisions in the applicable national law. If the standard suite of rights granted under applicable copyright law includes additional rights not granted under this License, such additional rights are deemed to be included in the License; this License is not intended to restrict the license of any rights under applicable law. 64 | -------------------------------------------------------------------------------- /testdata/README.txt: -------------------------------------------------------------------------------- 1 | Massively by HTML5 UP 2 | html5up.net | @ajlkn 3 | Free for personal and commercial use under the CCA 3.0 license (html5up.net/license) 4 | 5 | 6 | This is Massively, a text-heavy, article-oriented design built around a huge background 7 | image (with a new parallax implementation I'm testing) and scroll effects (powered by 8 | Scrollex). A *slight* departure from all the one-pagers I've been doing lately, but one 9 | that fulfills a few user requests and makes use of some new techniques I've been wanting 10 | to try out. Enjoy it :) 11 | 12 | Demo images* courtesy of Unsplash, a radtastic collection of CC0 (public domain) images 13 | you can use for pretty much whatever. 14 | 15 | (* = not included) 16 | 17 | AJ 18 | aj@lkn.io | @ajlkn 19 | 20 | 21 | Credits: 22 | 23 | Demo Images: 24 | Unsplash (unsplash.com) 25 | 26 | Icons: 27 | Font Awesome (fontawesome.io) 28 | 29 | Other: 30 | jQuery (jquery.com) 31 | Scrollex (github.com/ajlkn/jquery.scrollex) 32 | Responsive Tools (github.com/ajlkn/responsive-tools) -------------------------------------------------------------------------------- /testdata/assets/css/noscript.css: -------------------------------------------------------------------------------- 1 | /* 2 | Massively by HTML5 UP 3 | html5up.net | @ajlkn 4 | Free for personal and commercial use under the CCA 3.0 license (html5up.net/license) 5 | */ 6 | 7 | /* Wrapper */ 8 | 9 | #wrapper { 10 | background-color: #212931; 11 | background-image: url("../../images/overlay.png"), linear-gradient(0deg, 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int64 35 | modtime int64 36 | local string 37 | isDir bool 38 | 39 | once sync.Once 40 | data []byte 41 | name string 42 | } 43 | 44 | func (_escLocalFS) Open(name string) (http.File, error) { 45 | f, present := _escData[path.Clean(name)] 46 | if !present { 47 | return nil, os.ErrNotExist 48 | } 49 | return os.Open(f.local) 50 | } 51 | 52 | func (_escStaticFS) prepare(name string) (*_escFile, error) { 53 | f, present := _escData[path.Clean(name)] 54 | if !present { 55 | return nil, os.ErrNotExist 56 | } 57 | var err error 58 | f.once.Do(func() { 59 | f.name = path.Base(name) 60 | if f.size == 0 { 61 | return 62 | } 63 | var gr *gzip.Reader 64 | b64 := base64.NewDecoder(base64.StdEncoding, bytes.NewBufferString(f.compressed)) 65 | gr, err = gzip.NewReader(b64) 66 | if err != nil { 67 | return 68 | } 69 | f.data, err = ioutil.ReadAll(gr) 70 | }) 71 | if err != nil { 72 | return nil, err 73 | } 74 | return f, nil 75 | } 76 | 77 | func (fs _escStaticFS) Open(name string) (http.File, error) { 78 | f, err := fs.prepare(name) 79 | if err != nil { 80 | return nil, err 81 | } 82 | return f.File() 83 | } 84 | 85 | func (dir _escDirectory) Open(name string) (http.File, error) { 86 | return dir.fs.Open(dir.name + name) 87 | } 88 | 89 | func (f *_escFile) File() (http.File, error) { 90 | type httpFile struct { 91 | *bytes.Reader 92 | *_escFile 93 | } 94 | return &httpFile{ 95 | Reader: bytes.NewReader(f.data), 96 | _escFile: f, 97 | }, nil 98 | } 99 | 100 | func (f *_escFile) Close() error { 101 | return nil 102 | } 103 | 104 | func (f *_escFile) Readdir(count int) ([]os.FileInfo, error) { 105 | if !f.isDir { 106 | return nil, fmt.Errorf(" escFile.Readdir: '%s' is not directory", f.name) 107 | } 108 | 109 | fis, ok := _escDirs[f.local] 110 | if !ok { 111 | return nil, fmt.Errorf(" escFile.Readdir: '%s' is directory, but we have no info about content of this dir, local=%s", f.name, f.local) 112 | } 113 | limit := count 114 | if count <= 0 || limit > len(fis) { 115 | limit = len(fis) 116 | } 117 | 118 | if len(fis) == 0 && count > 0 { 119 | return nil, io.EOF 120 | } 121 | 122 | return fis[0:limit], nil 123 | } 124 | 125 | func (f *_escFile) Stat() (os.FileInfo, error) { 126 | return f, nil 127 | } 128 | 129 | func (f *_escFile) Name() string { 130 | return f.name 131 | } 132 | 133 | func (f *_escFile) Size() int64 { 134 | return f.size 135 | } 136 | 137 | func (f *_escFile) Mode() os.FileMode { 138 | return 0 139 | } 140 | 141 | func (f *_escFile) ModTime() time.Time { 142 | return time.Unix(f.modtime, 0) 143 | } 144 | 145 | func (f *_escFile) IsDir() bool { 146 | return f.isDir 147 | } 148 | 149 | func (f *_escFile) Sys() interface{} { 150 | return f 151 | } 152 | 153 | // FS returns a http.Filesystem for the embedded assets. If useLocal is true, 154 | // the filesystem's contents are instead used. 155 | func FS(useLocal bool) http.FileSystem { 156 | if useLocal { 157 | return _escLocal 158 | } 159 | return _escStatic 160 | } 161 | 162 | // Dir returns a http.Filesystem for the embedded assets on a given prefix dir. 163 | // If useLocal is true, the filesystem's contents are instead used. 164 | func Dir(useLocal bool, name string) http.FileSystem { 165 | if useLocal { 166 | return _escDirectory{fs: _escLocal, name: name} 167 | } 168 | return _escDirectory{fs: _escStatic, name: name} 169 | } 170 | 171 | // FSByte returns the named file from the embedded assets. If useLocal is 172 | // true, the filesystem's contents are instead used. 173 | func FSByte(useLocal bool, name string) ([]byte, error) { 174 | if useLocal { 175 | f, err := _escLocal.Open(name) 176 | if err != nil { 177 | return nil, err 178 | } 179 | b, err := ioutil.ReadAll(f) 180 | _ = f.Close() 181 | return b, err 182 | } 183 | f, err := _escStatic.prepare(name) 184 | if err != nil { 185 | return nil, err 186 | } 187 | return f.data, nil 188 | } 189 | 190 | // FSMustByte is the same as FSByte, but panics if name is not present. 191 | func FSMustByte(useLocal bool, name string) []byte { 192 | b, err := FSByte(useLocal, name) 193 | if err != nil { 194 | panic(err) 195 | } 196 | return b 197 | } 198 | 199 | // FSString is the string version of FSByte. 200 | func FSString(useLocal bool, name string) (string, error) { 201 | b, err := FSByte(useLocal, name) 202 | return string(b), err 203 | } 204 | 205 | // FSMustString is the string version of FSMustByte. 206 | func FSMustString(useLocal bool, name string) string { 207 | return string(FSMustByte(useLocal, name)) 208 | } 209 | 210 | var _escData = map[string]*_escFile{ 211 | 212 | "/testdata/empty/1": { 213 | name: "1", 214 | local: "../testdata/empty/1", 215 | size: 0, 216 | modtime: 0, 217 | compressed: ` 218 | H4sIAAAAAAAC/wEAAP//AAAAAAAAAAA= 219 | `, 220 | }, 221 | 222 | "/testdata/empty/2": { 223 | name: "2", 224 | local: "../testdata/empty/2", 225 | size: 0, 226 | modtime: 0, 227 | compressed: ` 228 | H4sIAAAAAAAC/wEAAP//AAAAAAAAAAA= 229 | `, 230 | }, 231 | 232 | "/testdata/empty": { 233 | name: "empty", 234 | local: `../testdata/empty`, 235 | isDir: true, 236 | }, 237 | } 238 | 239 | var _escDirs = map[string][]os.FileInfo{ 240 | 241 | "../testdata/empty": { 242 | _escData["/testdata/empty/1"], 243 | _escData["/testdata/empty/2"], 244 | }, 245 | } 246 | -------------------------------------------------------------------------------- /testdata/empty/1: -------------------------------------------------------------------------------- https://raw.githubusercontent.com/maddyblue/esc/e2125b856bf438abc1fc4e8344e4164570669915/testdata/empty/1 -------------------------------------------------------------------------------- /testdata/empty/2: -------------------------------------------------------------------------------- https://raw.githubusercontent.com/maddyblue/esc/e2125b856bf438abc1fc4e8344e4164570669915/testdata/empty/2 -------------------------------------------------------------------------------- /testdata/generic.html: -------------------------------------------------------------------------------- 1 | 2 | 7 | 8 | 9 | Generic Page - Massively by HTML5 UP 10 | 11 | 12 | 13 | 14 | 15 | 16 | 17 | 18 |
19 | 20 | 21 | 24 | 25 | 26 | 39 | 40 | 41 |
42 | 43 | 44 |
45 |
46 | April 25, 2017 47 |

This is a
48 | Generic Page

49 |

Aenean ornare velit lacus varius enim ullamcorper proin aliquam
50 | facilisis ante sed etiam magna interdum congue. Lorem ipsum dolor
51 | amet nullam sed etiam veroeros.

52 |
53 |
54 |

Donec eget ex magna. Interdum et malesuada fames ac ante ipsum primis in faucibus. Pellentesque venenatis dolor imperdiet dolor mattis sagittis. Praesent rutrum sem diam, vitae egestas enim auctor sit amet. Pellentesque leo mauris, consectetur id ipsum sit amet, fergiat. Pellentesque in mi eu massa lacinia malesuada et a elit. Donec urna ex, lacinia in purus ac, pretium pulvinar mauris. Nunc lorem mauris, fringilla in aliquam at, euismod in lectus. Pellentesque habitant morbi tristique senectus et netus et malesuada fames ac turpis egestas. Curabitur sapien risus, commodo eget turpis at, elementum convallis enim turpis, lorem ipsum dolor sit amet nullam.

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Lorem ipsum dolor sit amet, consectetur adipiscing elit. Duis dapibus rutrum facilisis. Class aptent taciti sociosqu ad litora torquent per conubia nostra, per inceptos himenaeos. Etiam tristique libero eu nibh porttitor fermentum. Nullam venenatis erat id vehicula viverra. Nunc ultrices eros ut ultricies condimentum. Mauris risus lacus, blandit sit amet venenatis non, bibendum vitae dolor. Nunc lorem mauris, fringilla in aliquam at, euismod in lectus. Pellentesque habitant morbi tristique senectus et netus et malesuada fames ac turpis egestas. In non lorem sit amet elit placerat maximus. Pellentesque aliquam maximus risus. Donec eget ex magna. Interdum et malesuada fames ac ante ipsum primis in faucibus. Pellentesque venenatis dolor imperdiet dolor mattis sagittis. Praesent rutrum sem diam, vitae egestas enim auctor sit amet. Pellentesque leo mauris, consectetur id ipsum.

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Address

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1234 Somewhere Road #87257
87 | Nashville, TN 00000-0000

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Phone

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(000) 000-0000

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info@untitled.tld

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Social

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This is
23 | Massively

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A free, fully responsive HTML5 + CSS3 site template designed by @ajlkn for HTML5 UP
25 | and released for free under the Creative Commons license.

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And this is a
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Aenean ornare velit lacus varius enim ullamcorper proin aliquam
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Sed magna
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Primis eget
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Ante mattis
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Tempus sed
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Odio magna
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Augue lorem
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Address

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1234 Somewhere Road #87257
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(000) 000-0000

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info@untitled.tld

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