diff options
| -rw-r--r-- | Makefile | 13 | ||||
| -rw-r--r-- | favicon.go | 7 | ||||
| -rw-r--r-- | intercept.go | 107 | ||||
| -rw-r--r-- | main.go | 36 | ||||
| -rw-r--r-- | scanner.go | 56 | ||||
| -rw-r--r-- | sort.go | 17 | ||||
| -rw-r--r-- | template.go | 224 | ||||
| -rw-r--r-- | upload.go | 9 | ||||
| -rw-r--r-- | urlscanner.h | 18 | ||||
| -rw-r--r-- | urlscanner.l | 52 | ||||
| -rw-r--r-- | view.go | 112 |
11 files changed, 423 insertions, 228 deletions
diff --git a/Makefile b/Makefile new file mode 100644 index 0000000..1575525 --- /dev/null +++ b/Makefile @@ -0,0 +1,13 @@ +LEX := flex +LFLAGS := +CC := gcc +CFLAGS := -Wall -pedantic +APP := uhttpd + +all: clean urlscanner.o scanner.go + go build -o $(APP) + +urlscanner.o: urlscanner.h + +clean: + rm -f *.o $(APP) *.exe diff --git a/favicon.go b/favicon.go new file mode 100644 index 0000000..e958a32 --- /dev/null +++ b/favicon.go @@ -0,0 +1,7 @@ +package main + +import "html/template" + +func getFavicon() template.HTML { + return template.HTML("<link rel=\"shortcut icon\" href=\"data:image/x-icon;base64,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\" type=\"image/x-icon\">") +} diff --git a/intercept.go b/intercept.go new file mode 100644 index 0000000..8201f3e --- /dev/null +++ b/intercept.go @@ -0,0 +1,107 @@ +package main + +import ( + "html/template" + "log" + "net/http" + "sort" + "strings" +) + +type TemplateHandler struct { + handler http.Handler +} + +func (t *TemplateHandler) ServeHTTP(w http.ResponseWriter, r *http.Request) { + + w.Header().Set("Server", "uhttpd") + + // We use our custom handler to prettify directories. Files are served via default. + if !strings.HasSuffix(r.URL.Path, "/") { + t.handler.ServeHTTP(w, r) + return + } + + rec := NewRecorder() + + defer rec.Body.Reset() + + // passing the recorder instead of the real ResponseWriter + t.handler.ServeHTTP(rec, r) + + // let the standard lib handle all the caching + if rec.Code > 300 && rec.Code < 400 { + log.Println("Code: ", rec.Code) + t.handler.ServeHTTP(w, r) + return + } + + // we copy the original headers first + for k, v := range rec.Header() { + w.Header()[k] = v + } + + // not found + if rec.Code == 404 { + w.Header().Set("Content-Type", "text/html") + w.WriteHeader(404) + tmpl := template.New("404") + tmpl, err := tmpl.Parse(get404()) + if err != nil { + log.Println(err.Error()) + w.WriteHeader(500) + w.Write([]byte(err.Error())) + return + } + + err = tmpl.Execute(w, struct{ URL string }{URL: r.URL.Path}) + if err != nil { + log.Println(err.Error()) + w.WriteHeader(500) + w.Write([]byte(err.Error())) + return + } + return + } + + // we serve a file instead of a html page + if !strings.Contains(w.Header().Get("Content-Type"), "text/html") { + w.Write(rec.Body.Bytes()) + return + } + + data := rec.Body.String() + + // we serve the directoy page + if strings.HasPrefix(data, "<pre>") { + execTemplate(w, r, data) + } else { + w.Write(rec.Body.Bytes()) + } +} + +func execTemplate(w http.ResponseWriter, r *http.Request, data string) { + + links := getToken(data) + sort.Sort(LinksAsSlice(links)) // see sort.go + + tmpl := template.New("page") + tmpl, err := tmpl.Parse(getTemplate()) + if err != nil { + log.Println(err.Error()) + w.WriteHeader(500) + w.Write([]byte(err.Error())) + return + } + + err = tmpl.Execute(w, struct { + Links []Link + URL string + Favicon template.HTML + AllowUpload bool + }{Links: links, URL: r.URL.Path, Favicon: getFavicon(), AllowUpload: _allow_upload}) + if err != nil { + log.Println(err) + } + +} @@ -4,6 +4,7 @@ import ( "flag" "fmt" "log" + "net" "net/http" "os" ) @@ -19,6 +20,8 @@ func accessLog(h http.Handler, quiet bool) http.Handler { return http.HandlerFunc(fn) } +var _allow_upload bool // todo: inject as dependency + func main() { ip_f := flag.String("ip", "0.0.0.0", "IP adress to listen on.") port_f := flag.String("port", "3000", "Port to listen on.") @@ -35,13 +38,44 @@ func main() { } if !*quiet_f { - fmt.Println("Starting uhttpd serving \"" + *dir_f + "\" on " + *ip_f + ":" + port + ".") + fmt.Print("You started µhttpd listening on " + *ip_f + ":" + port + " serving \"" + *dir_f + "\" as content.") + if !*disallow_upl_f { + fmt.Println(" Upload is enabled and accessible under /upload.") + } else { + fmt.Println(" Upload is disabled.") + } + fmt.Print("To view open your browser and try to open this as a url: ") + + if *ip_f == "0.0.0.0" { + addrs, err := net.InterfaceAddrs() + if err != nil { + log.Fatal(err) + return + } + + for cnt, adr := range addrs { + if ipnet, ok := adr.(*net.IPNet); ok && !ipnet.IP.IsLoopback() { + if ipnet.IP.To4() != nil { + if cnt > 1 { + fmt.Printf(" or http://%s:%s/", ipnet.IP.String(), port) + } else { + fmt.Printf("http://%s:%s/", ipnet.IP.String(), port) + } + } + } + } + } else { + fmt.Print("http://" + *ip_f + ":" + port + "/") + } + fmt.Print("\n\n") + } mux := http.NewServeMux() if !*disallow_upl_f { os.MkdirAll(*upl_dir_f, 0755) mux.Handle("/upload", uploadHandler(*upl_dir_f, *quiet_f)) + _allow_upload = true } mux.Handle("/", accessLog(http.FileServer(http.Dir(*dir_f)), *quiet_f)) log.Fatal(http.ListenAndServe(*ip_f+":"+port, mux)) diff --git a/scanner.go b/scanner.go new file mode 100644 index 0000000..10be11b --- /dev/null +++ b/scanner.go @@ -0,0 +1,56 @@ +package main + +/* +#include <stdio.h> +#include <stdlib.h> +#include "urlscanner.h" +*/ +import "C" +import ( + "log" + "strings" +) + +type Link struct { + Url string + Text string + IsDir bool +} + +func getToken(input string) []Link { + var token C.int + var ls []Link + var l Link + + C.scan_string(C.CString(input)) + + for token = C.yylex(); token != C.MYEOF; token = C.yylex() { + + if token == C.TOKEN_URL { + // flex reads the href attr + + l.Url = C.GoString(C.yylval) + + if strings.HasSuffix(l.Url, "/") { + l.IsDir = true + } + + } else if token == C.TOKEN_TEXT { + // flex reads the link description + + l.Text = C.GoString(C.yylval) + ls = append(ls, l) + l = Link{} + } else { + // lexical error + + l = Link{} + log.Printf("Lexical Error on line %d \n", C.yylineno) + continue + } + } + + return ls +} + +// sort @@ -0,0 +1,17 @@ +package main + +// Dirty hack. Source: +// https://stackoverflow.com/questions/26526736/invalid-receiver-type-t-t-is-an-unnamed-type-workaround +type LinksAsSlice []Link + +func (slice LinksAsSlice) Len() int { + return len(slice) +} + +func (slice LinksAsSlice) Less(i, j int) bool { + return slice[i].Text < slice[j].Text +} + +func (slice LinksAsSlice) Swap(i, j int) { + slice[i], slice[j] = slice[j], slice[i] +} diff --git a/template.go b/template.go deleted file mode 100644 index 7f9a134..0000000 --- a/template.go +++ /dev/null @@ -1,224 +0,0 @@ -package main - -import ( - "html/template" - "log" - "net/http" - "strings" -) - -type TemplateHandler struct { - handler http.Handler -} - -func (t *TemplateHandler) ServeHTTP(w http.ResponseWriter, r *http.Request) { - - w.Header().Set("Server", "uhttpd") - - // We use our custom handler to prettify directories. Files are served via default. - if !strings.HasSuffix(r.URL.Path, "/") { - t.handler.ServeHTTP(w, r) - return - } - - rec := NewRecorder() - - defer rec.Body.Reset() - - // passing the recorder instead of the real ResponseWriter - t.handler.ServeHTTP(rec, r) - - // let the standard lib handle all the caching - if rec.Code > 300 && rec.Code < 400 { - log.Println("Code: ", rec.Code) - t.handler.ServeHTTP(w, r) - return - } - - // we copy the original headers first - for k, v := range rec.Header() { - w.Header()[k] = v - } - - // not found - if rec.Code == 404 { - w.Header().Set("Content-Type", "text/html") - w.WriteHeader(404) - tmpl := template.New("404") - tmpl, err := tmpl.Parse(get404()) - if err != nil { - log.Println(err.Error()) - w.WriteHeader(500) - w.Write([]byte(err.Error())) - return - } - - err = tmpl.Execute(w, struct{ URL string }{URL: r.URL.Path}) - if err != nil { - log.Println(err.Error()) - w.WriteHeader(500) - w.Write([]byte(err.Error())) - return - } - return - } - - // we serve a file instead of a html page - if !strings.Contains(w.Header().Get("Content-Type"), "text/html") { - w.Write(rec.Body.Bytes()) - return - } - - data := rec.Body.String() - - // we serve the directoy page - if strings.HasPrefix(data, "<pre>") { - execTemplate(w, r, data) - } else { - w.Write(rec.Body.Bytes()) - } -} - -func execTemplate(w http.ResponseWriter, r *http.Request, data string) { - data = strings.Replace(data, "<pre>", "", 1) - data = strings.Replace(data, "</pre>", "", 1) - data = strings.Replace(data, "</a>", "</a><br>", -1) - - tmpl := template.New("page") - tmpl, err := tmpl.Parse(getTemplate()) - if err != nil { - log.Println(err.Error()) - w.WriteHeader(500) - w.Write([]byte(err.Error())) - return - } - - err = tmpl.Execute(w, struct { - Data template.HTML - URL string - }{Data: template.HTML(data), URL: r.URL.Path}) - if err != nil { - log.Println(err) - } - -} - -func getTemplate() string { - return `<!doctype html> -<html> -<head> - <meta charset="utf-8"> - <title>{{.URL}}</title> - <meta name="viewport" content="width=device-width, initial-scale=1"> - <style>/*! normalize.css v3.0.2 | MIT License | git.io/normalize */html{font-family:sans-serif;-ms-text-size-adjust:100%;-webkit-text-size-adjust:100%}body{margin:0}a{background-color:transparent}a:active,a:hover{outline:0}button::-moz-focus-inner,input::-moz-focus-inner{border:0;padding:0}.container{position:relative;width:100%;max-width:960px;margin:0 auto;padding:0 20px;box-sizing:border-box}.column{width:100%;float:left;box-sizing:border-box}@media (min-width:400px){.container{width:85%;padding:0}}@media (min-width:550px){.container{width:80%}.column{margin-left:4%}.column:first-child{margin-left:0}}html{font-size:62.5%}body{font-size:1.5em;line-height:1.6;font-weight:400;font-family:Raleway,HelveticaNeue,"Helvetica Neue",Helvetica,Arial,sans-serif;color:#222}h4{margin-top:0;margin-bottom:2rem;font-weight:300;font-size:2.4rem;line-height:1.35;letter-spacing:-.08rem}@media (min-width:550px){h4{font-size:3rem}}a{color:#1EAEDB}a:hover{color:#0FA0CE}blockquote{margin-bottom:2.5rem}.container:after,.row:after{content:"";display:table;clear:both}.margin-top{margin-top:20px}.dir,.dir:hover{color:#000}.dir:hover{text-decoration:none}.dir:before{content:"> "}div.icon{height:32px;width:32px;position:relative;margin:15px;overflow:hidden;display:inline-block}div.icon div.home{height:0;width:0;border-width:16px;border-style:solid;border-color:transparent transparent #333;position:absolute;bottom:16px;left:0}div.icon div.home:after{content:'';width:5px;height:16px;background-color:transparent;position:absolute;top:16px;right:-11px;border-left:8px solid #333;border-right:8px solid #333}div.icon div.home:before{content:'';width:9px;height:6px;background-color:#333;position:absolute;top:16px;right:-5px}div.icon div.chimney{width:4px;height:10px;background:#333;position:absolute;right:6px;top:3px}</style> - <link rel="shortcut icon" 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type="image/x-icon"> -</head> -<body> - <div class="container"> - <div class="row"> - <div class="column margin-top"> - <h4><a href="/.." title="Go back to root"><div class="icon"><div class="home"></div><div class="chimney"></div></div></a><br> - {{.URL}}</h4> - <blockquote> - {{if ne .URL "/"}} - <a class="dir" href="..">.. 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type="image/x-icon"> -</head> -<body> -<div class="section"> - <div class="container"> - <h3 class="section-heading">Not Found - {{.URL}}</h3> - <p class="section-description"> - Please check for typos in your url. </p> - <p class="section-description"> - <a href="/" class="button button-primary">Go back to root</a> - </p> - </div> -</div> -</body> -</html>` -} - -func getUpload() string { - return `<!doctype html> -<html> -<head> - <meta charset="utf-8"> - <title>Upload Form</title> - <meta name="viewport" content="width=device-width, initial-scale=1"> -<style>/*! normalize.css v3.0.2 | MIT License | git.io/normalize */html{font-family:sans-serif;-ms-text-size-adjust:100%;-webkit-text-size-adjust:100%}body{margin:0}input{color:inherit;font:inherit;margin:0}input[type=submit]{-webkit-appearance:button}button::-moz-focus-inner,input::-moz-focus-inner{border:0;padding:0}input{line-height:normal}.container{position:relative;width:100%;max-width:960px;margin:0 auto;padding:0 20px;box-sizing:border-box}@media (min-width:400px){.container{width:85%;padding:0}}@media (min-width:550px){.container{width:80%}}html{font-size:62.5%}body{font-size:1.5em;line-height:1.6;font-weight:400;font-family:Raleway,HelveticaNeue,"Helvetica Neue",Helvetica,Arial,sans-serif;color:#222}h3{margin-top:0;margin-bottom:2rem;font-weight:300;font-size:3rem;line-height:1.3;letter-spacing:-.1rem}@media (min-width:550px){h3{font-size:3.6rem}}p{margin-top:0}input[type=submit]{display:inline-block;height:38px;padding:0 30px;color:#555;text-align:center;font-size:11px;font-weight:600;line-height:38px;letter-spacing:.1rem;text-transform:uppercase;text-decoration:none;white-space:nowrap;background-color:transparent;border-radius:4px;border:1px solid #bbb;cursor:pointer;box-sizing:border-box}input[type=submit]:focus,input[type=submit]:hover{color:#333;border-color:#888;outline:0}input[type=submit].button-primary{color:#FFF;background-color:#33C3F0;border-color:#33C3F0}input[type=submit].button-primary:focus,input[type=submit].button-primary:hover{color:#FFF;background-color:#1EAEDB;border-color:#1EAEDB}input{margin-bottom:1.5rem}form,p{margin-bottom:2.5rem}.container:after{content:"";display:table;clear:both}.section{padding:8rem 0 7rem;text-align:center}.section-description,.section-heading{margin-bottom:1.2rem}.section-description{max-width:60%;margin-left:auto;margin-right:auto}</style> - <link rel="shortcut icon" 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type="image/x-icon"> -</head> -<body> -<div class="section"> - <div class="container"> - <h3 class="section-heading">Upload Form</h3> - <form class="section-description" method="POST" action="/upload?html=1" enctype="multipart/form-data"> - <p class="section-description" for="file">You are going to upload a file. Here you can search to add it.</p> - <input type="file" value="Search for your file" id="file" name="file"> - <br> - <input class="button button-primary" type="submit" value="Submit"> - </form> - </div> -</div> -</body> -</html> -` -} - -func getUploaded() string { - return `<!doctype html> -<html> -<head> - <meta charset="utf-8"> - <title>Uploaded {{.File}}</title> - <meta name="viewport" content="width=device-width, initial-scale=1"> - <style>/*! normalize.css v3.0.2 | MIT License | git.io/normalize */html{font-family:sans-serif;-ms-text-size-adjust:100%;-webkit-text-size-adjust:100%}body{margin:0}a{background-color:transparent}a:active,a:hover{outline:0}button::-moz-focus-inner,input::-moz-focus-inner{border:0;padding:0}.container{position:relative;width:100%;max-width:960px;margin:0 auto;padding:0 20px;box-sizing:border-box}@media (min-width:400px){.container{width:85%;padding:0}}@media (min-width:550px){.container{width:80%}}html{font-size:62.5%}body{font-size:1.5em;line-height:1.6;font-weight:400;font-family:Raleway,HelveticaNeue,"Helvetica Neue",Helvetica,Arial,sans-serif;color:#222}h3{margin-top:0;margin-bottom:2rem;font-weight:300;font-size:3rem;line-height:1.3;letter-spacing:-.1rem}@media (min-width:550px){h3{font-size:3.6rem}}p{margin-top:0}a{color:#1EAEDB}a:hover{color:#0FA0CE}.button{display:inline-block;height:38px;padding:0 30px;color:#555;text-align:center;font-size:11px;font-weight:600;line-height:38px;letter-spacing:.1rem;text-transform:uppercase;text-decoration:none;white-space:nowrap;background-color:transparent;border-radius:4px;border:1px solid #bbb;cursor:pointer;box-sizing:border-box}.button:focus,.button:hover{color:#333;border-color:#888;outline:0}.button.button-primary{color:#FFF;background-color:#33C3F0;border-color:#33C3F0}.button.button-primary:focus,.button.button-primary:hover{color:#FFF;background-color:#1EAEDB;border-color:#1EAEDB}.button{margin-bottom:1rem}p{margin-bottom:2.5rem}.container:after{content:"";display:table;clear:both}.section{padding:8rem 0 8rem;text-align:center}.section-description,.section-heading{margin-bottom:1.2rem}</style> - <link rel="shortcut icon" 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type="image/x-icon"> -</head> -<body> -<div class="section"> - <div class="container"> - <h3 class="section-heading">Uploaded!</h3> - <p class="section-description"> - <strong>{{.File}}</strong> was successfull uploaded. - </p> - <p class="section-description"> - <a href="/" class="button button-primary">Back to root</a> - </p> - </div> -</div> -</body> -</html>` -} @@ -12,7 +12,7 @@ import ( func uploadHandler(dir string, quiet bool) http.Handler { fn := func(w http.ResponseWriter, r *http.Request) { - // uhttpd strong + // µhttpd strong w.Header().Set("Server", "uhttpd") // we are handling the upload @@ -75,7 +75,10 @@ func uploadHandler(dir string, quiet bool) http.Handler { return } - err = tmpl.Execute(w, struct{ File string }{File: header.Filename}) + err = tmpl.Execute(w, struct { + File string + Favicon template.HTML + }{File: header.Filename, Favicon: getFavicon()}) if err != nil { log.Println(err.Error()) w.WriteHeader(500) @@ -96,7 +99,7 @@ func uploadHandler(dir string, quiet bool) http.Handler { return } - err = tmpl.Execute(w, nil) + err = tmpl.Execute(w, struct{ Favicon template.HTML }{Favicon: getFavicon()}) if err != nil { log.Println(err.Error()) w.WriteHeader(500) diff --git a/urlscanner.h b/urlscanner.h new file mode 100644 index 0000000..f815c41 --- /dev/null +++ b/urlscanner.h @@ -0,0 +1,18 @@ +#ifndef URLSCANNER_H +#define URLSCANNER_H + +#define MYEOF EOF +#define TOKEN_URL 257 +#define TOKEN_TEXT 258 + +#ifndef YYSTYPE +#define YYSTYPE yystype +typedef char* yystype; +#endif + +extern int yylex(); +extern yystype yylval; +extern int yylineno; +extern void scan_string ( const char *str ); + +#endif diff --git a/urlscanner.l b/urlscanner.l new file mode 100644 index 0000000..5f9acb6 --- /dev/null +++ b/urlscanner.l @@ -0,0 +1,52 @@ +%option noyywrap +%option yylineno +%option nounput +%option nodefault + +%{ +#include "urlscanner.h" +#include "string.h" +yystype yylval; +%} + +%x ATAG_HREF +%x ATAG_BETWEEN +%x ATAG_DESC + +%% + +[^<]* { } + +"<a"[^>]*"href=\"" { BEGIN(ATAG_HREF); } + +<ATAG_HREF>[^\"]+ { + yylval = strdup(yytext); + BEGIN(ATAG_BETWEEN); + return TOKEN_URL; +} + +<ATAG_HREF>\" { + yylval = ""; + BEGIN(ATAG_BETWEEN); + return TOKEN_URL; +} + +<ATAG_BETWEEN>[^>]* { } + +<ATAG_BETWEEN>">" { BEGIN(ATAG_DESC); } + +<ATAG_DESC>[^<]* { + yylval = strdup(yytext); + BEGIN(INITIAL); + return TOKEN_TEXT; +} + +. { /* skip */ } + +<<EOF>> { return MYEOF; } + +%% + +void scan_string(const char* str) { + yy_switch_to_buffer(yy_scan_string(str)); +} @@ -0,0 +1,112 @@ +package main + +func getTemplate() string { + return `<!doctype html> +<html> +<head> + <meta charset="utf-8"> + <title>{{.URL}}</title> + <meta name="viewport" content="width=device-width, initial-scale=1"> + <style>/*! normalize.css v3.0.2 | MIT License | git.io/normalize */html{font-family:sans-serif;-ms-text-size-adjust:100%;-webkit-text-size-adjust:100%}body{margin:0}a{background-color:transparent}a:active,a:hover{outline:0}button::-moz-focus-inner,input::-moz-focus-inner{border:0;padding:0}.container{position:relative;width:100%;max-width:960px;margin:0 auto;padding:0 20px;box-sizing:border-box}.column{width:100%;float:left;box-sizing:border-box}@media (min-width:400px){.container{width:85%;padding:0}}@media (min-width:550px){.container{width:80%}.column{margin-left:4%}.column:first-child{margin-left:0}}html{font-size:62.5%}body{font-size:1.5em;line-height:1.6;font-weight:400;font-family:Raleway,HelveticaNeue,"Helvetica Neue",Helvetica,Arial,sans-serif;color:#222}h4{margin-top:0;margin-bottom:2rem;font-weight:300;font-size:2.4rem;line-height:1.35;letter-spacing:-.08rem}@media (min-width:550px){h4{font-size:3rem}}a{color:#1EAEDB}a:hover{color:#0FA0CE}blockquote{margin-bottom:2.5rem}.container:after,.row:after{content:"";display:table;clear:both}.margin-top{margin-top:20px}.dir,.dir:hover{color:#1EAEDB}.dir:hover{text-decoration:none}div.icon{height:32px;width:32px;position:relative;margin:15px;overflow:hidden;display:inline-block}span.icono-folder{color: #1EAEDB}.file,span.icono-caretUp,span.icono-home,span.icono-file{color:#000}</style> + <link rel="stylesheet" href="https://saeedalipoor.github.io/icono/icono.min.css"> + {{.Favicon}} +</head> +<body> + <div class="container"> + <div class="row"> + <div class="column margin-top"> + {{.URL}}</h4--> + <h4><a href="/" title="Go back to root" class="file"><span class="icono-home"></span> {{.URL}}</a></h4> + {{if .AllowUpload}}<p>To upload please click <a href="/upload" title="Upload">here</a>.</p>{{end}} + <blockquote> + {{if ne .URL "/"}} + <a class="dir" href=".."><span class="icono-caretUp"></span> .. (up a dir)</a><br><br> + {{end}} + {{range .Links}} + <a href="{{.Url}}" class="{{if .IsDir}}dir" title="Directory: {{.Text}}"><span class="icono-folder"></span>{{else}}file" title="File: {{.Text}}"><span class="icono-file"></span>{{end}} {{.Text}}</a><br> + {{end}} + </blockquote> + </div> + </div> + </div> +</body> +</html>` +} + +func get404() string { + return `<!doctype html> +<html> +<head> + <meta charset="utf-8"> + <title>Not Found - {{.URL}}</title> + <meta name="viewport" content="width=device-width, initial-scale=1"> + <style>/*! normalize.css v3.0.2 | MIT License | git.io/normalize */html{font-family:sans-serif;-ms-text-size-adjust:100%;-webkit-text-size-adjust:100%}body{margin:0}a{background-color:transparent}a:active,a:hover{outline:0}button::-moz-focus-inner,input::-moz-focus-inner{border:0;padding:0}.container{position:relative;width:100%;max-width:960px;margin:0 auto;padding:0 20px;box-sizing:border-box}@media (min-width:400px){.container{width:85%;padding:0}}@media (min-width:550px){.container{width:80%}}html{font-size:62.5%}body{font-size:1.5em;line-height:1.6;font-weight:400;font-family:Raleway,HelveticaNeue,"Helvetica Neue",Helvetica,Arial,sans-serif;color:#222}h3{margin-top:0;margin-bottom:2rem;font-weight:300;font-size:3rem;line-height:1.3;letter-spacing:-.1rem}@media (min-width:550px){h3{font-size:3.6rem}}p{margin-top:0}a{color:#1EAEDB}a:hover{color:#0FA0CE}.button{display:inline-block;height:38px;padding:0 30px;color:#555;text-align:center;font-size:11px;font-weight:600;line-height:38px;letter-spacing:.1rem;text-transform:uppercase;text-decoration:none;white-space:nowrap;background-color:transparent;border-radius:4px;border:1px solid #bbb;cursor:pointer;box-sizing:border-box}.button:focus,.button:hover{color:#333;border-color:#888;outline:0}.button.button-primary{color:#FFF;background-color:#33C3F0;border-color:#33C3F0}.button.button-primary:focus,.button.button-primary:hover{color:#FFF;background-color:#1EAEDB;border-color:#1EAEDB}.button{margin-bottom:1rem}p{margin-bottom:2.5rem}.container:after{content:"";display:table;clear:both}.section{padding:8rem 0 7rem;text-align:center}.section-description,.section-heading{margin-bottom:1.2rem}</style> + {{.Favicon}} +</head> +<body> +<div class="section"> + <div class="container"> + <h3 class="section-heading">Not Found - {{.URL}}</h3> + <p class="section-description"> + Please check for typos in your url. </p> + <p class="section-description"> + <a href="/" class="button button-primary">Go back to root</a> + </p> + </div> +</div> +</body> +</html>` +} + +func getUpload() string { + return `<!doctype html> +<html> +<head> + <meta charset="utf-8"> + <title>Upload Form</title> + <meta name="viewport" content="width=device-width, initial-scale=1"> +<style>/*! normalize.css v3.0.2 | MIT License | git.io/normalize */html{font-family:sans-serif;-ms-text-size-adjust:100%;-webkit-text-size-adjust:100%}body{margin:0}input{color:inherit;font:inherit;margin:0}input[type=submit]{-webkit-appearance:button}button::-moz-focus-inner,input::-moz-focus-inner{border:0;padding:0}input{line-height:normal}.container{position:relative;width:100%;max-width:960px;margin:0 auto;padding:0 20px;box-sizing:border-box}@media (min-width:400px){.container{width:85%;padding:0}}@media (min-width:550px){.container{width:80%}}html{font-size:62.5%}body{font-size:1.5em;line-height:1.6;font-weight:400;font-family:Raleway,HelveticaNeue,"Helvetica Neue",Helvetica,Arial,sans-serif;color:#222}h3{margin-top:0;margin-bottom:2rem;font-weight:300;font-size:3rem;line-height:1.3;letter-spacing:-.1rem}@media (min-width:550px){h3{font-size:3.6rem}}p{margin-top:0}input[type=submit]{display:inline-block;height:38px;padding:0 30px;color:#555;text-align:center;font-size:11px;font-weight:600;line-height:38px;letter-spacing:.1rem;text-transform:uppercase;text-decoration:none;white-space:nowrap;background-color:transparent;border-radius:4px;border:1px solid #bbb;cursor:pointer;box-sizing:border-box}input[type=submit]:focus,input[type=submit]:hover{color:#333;border-color:#888;outline:0}input[type=submit].button-primary{color:#FFF;background-color:#33C3F0;border-color:#33C3F0}input[type=submit].button-primary:focus,input[type=submit].button-primary:hover{color:#FFF;background-color:#1EAEDB;border-color:#1EAEDB}input{margin-bottom:1.5rem}form,p{margin-bottom:2.5rem}.container:after{content:"";display:table;clear:both}.section{padding:8rem 0 7rem;text-align:center}.section-description,.section-heading{margin-bottom:1.2rem}.section-description{max-width:60%;margin-left:auto;margin-right:auto}</style> + {{.Favicon}} +</head> +<body> +<div class="section"> + <div class="container"> + <h3 class="section-heading">Upload Form</h3> + <form class="section-description" method="POST" action="/upload?html=1" enctype="multipart/form-data"> + <p class="section-description" for="file">You are going to upload a file. Here you can search to add it.</p> + <input type="file" value="Search for your file" id="file" name="file"> + <br> + <input class="button button-primary" type="submit" value="Submit"> + </form> + </div> +</div> +</body> +</html> +` +} + +func getUploaded() string { + return `<!doctype html> +<html> +<head> + <meta charset="utf-8"> + <title>Uploaded {{.File}}</title> + <meta name="viewport" content="width=device-width, initial-scale=1"> + <style>/*! normalize.css v3.0.2 | MIT License | git.io/normalize */html{font-family:sans-serif;-ms-text-size-adjust:100%;-webkit-text-size-adjust:100%}body{margin:0}a{background-color:transparent}a:active,a:hover{outline:0}button::-moz-focus-inner,input::-moz-focus-inner{border:0;padding:0}.container{position:relative;width:100%;max-width:960px;margin:0 auto;padding:0 20px;box-sizing:border-box}@media (min-width:400px){.container{width:85%;padding:0}}@media (min-width:550px){.container{width:80%}}html{font-size:62.5%}body{font-size:1.5em;line-height:1.6;font-weight:400;font-family:Raleway,HelveticaNeue,"Helvetica Neue",Helvetica,Arial,sans-serif;color:#222}h3{margin-top:0;margin-bottom:2rem;font-weight:300;font-size:3rem;line-height:1.3;letter-spacing:-.1rem}@media (min-width:550px){h3{font-size:3.6rem}}p{margin-top:0}a{color:#1EAEDB}a:hover{color:#0FA0CE}.button{display:inline-block;height:38px;padding:0 30px;color:#555;text-align:center;font-size:11px;font-weight:600;line-height:38px;letter-spacing:.1rem;text-transform:uppercase;text-decoration:none;white-space:nowrap;background-color:transparent;border-radius:4px;border:1px solid #bbb;cursor:pointer;box-sizing:border-box}.button:focus,.button:hover{color:#333;border-color:#888;outline:0}.button.button-primary{color:#FFF;background-color:#33C3F0;border-color:#33C3F0}.button.button-primary:focus,.button.button-primary:hover{color:#FFF;background-color:#1EAEDB;border-color:#1EAEDB}.button{margin-bottom:1rem}p{margin-bottom:2.5rem}.container:after{content:"";display:table;clear:both}.section{padding:8rem 0 8rem;text-align:center}.section-description,.section-heading{margin-bottom:1.2rem}</style> + {{.Favicon}} +</head> +<body> +<div class="section"> + <div class="container"> + <h3 class="section-heading">Uploaded!</h3> + <p class="section-description"> + <strong>{{.File}}</strong> was successfull uploaded. + </p> + <p class="section-description"> + <a href="/" class="button button-primary">Back to root</a> + </p> + </div> +</div> +</body> +</html>` +} |