Add Exclude to the config as well.

.gitignore

@@ -2,3 +2,6 @@ dist
 release
 discord-auto-upload
 discord-auto-upload.exe
+assets
+*.png
+*.jpg

README.md

@@ -1,4 +1,4 @@
-# Automatically upload screenshots from your computer into a discord channel
+# Automatically upload screenshots into a discord channel
 
 This program automatically uploads new screenshots that appear in a folder on your computer to Discord and posts them in a channel:
 
@@ -16,51 +16,72 @@ Point it at your Steam screenshot folder, or similar, and shortly after you hit
 
 ### Binaries
 
-TBD
+Binaries are available for Mac, Linux and Windows [here](https://github.com/tardisx/discord-auto-upload/releases/latest).
 
 #### From source
 
-TBD
+You'll need to [download Go](https://golang.org/dl/) check the code out somewhere, run 'go generate' and then 'go build'.
 
 ## Using it
 
-`dau` is a command line driven program. When executed, it will continually scan a directory for new images, and each time it finds one it will upload it to discord, via the discord web hook.
+`dau` configuration is managed via its internal web interface. When the executable is run, you can visit
+`http://localhost:9090` in your web browser to configure the it. Configuration persists across runs, it is
+saved in a file called '.dau.json' in your home directory.
+
+The first time you run it, you will need to configure at least the discord web hook and the watch path for
+`dau` to be useful.
+
+While running, `dau` will continually scan a directory for new images, and each time it finds one it will upload it to discord, via the discord web hook.
 
 `dau` will only upload "new" screenshots, where "new" means a file that appears in a directory that it is watching, if it appears *after* it has started executing.
 
 Thus, you do not have to worry about pointing `dau` at a directory full of images, it will only upload new ones.
 
-If `dau` is on your path, you can run it from your screenshot folder and there is then no need to specify the path to your images.
+## Configuration options
 
-Note that currently `dau` does not look in subdirectories. Please submit an issue if this is a use case for you.
+See the web interface at http://localhost:9090 to configure `dau`.
 
-The only two mandatory command line parameters are the discord webhook URL:
+### 'Discord WebHook URL'
 
-`--webhook URL` - the webhook URL (see [here](https://support.discordapp.com/hc/en-us/articles/228383668-Intro-to-Webhooks) for details).
+The webhook URL from Discord. See https://support.discordapp.com/hc/en-us/articles/228383668-Intro-to-Webhooks
+for more information on setting one up.
 
-and the directory to watch:
+### 'Bot Username'
 
-`--directory /some/path/here` - the directory that screenshots will appear in.
+This is completely optional and can be any arbitrary string. It makes the upload
+appear to come from a different user (though this is visual only, and does not
+actually hide the bot identity in any way). You might like to set it to your own
+discord name.
 
-You will have to quote the path on windows, or anywhere where the directory path contains spaces. Note that
+### 'Directory to watch'
-subdirectories will also be scanned.
 
-Other parameters are:
+This is the path that `dau` will periodically inspect, looking for new images.
+Note that subdirectories are also scanned. You need to enter the full filesystem
+path here.
 
-`--watch xx` - specify how many seconds to wait between scanning the directory. The default is 10 seconds.
+### 'Period between filesystem checks'
 
-`--username <username>` - an arbitrary string to show as the bot's username in the channel.
+This is the number of seconds between which `dau` will look for new images.
 
-`--help` - show command line help.
+### 'Do not watermark images'
 
-`--version` - show the version.
+This will disable the watermarking of images. I like it when you don't set this :-)
+
+### 'Files to exclude'
+
+This is a string to match against the filename to check for exclusions. The common
+use case is to use 'thumbnail' or similar if your image directory contains additional
+thumbnail files.
 
 ## Limitations/bugs
 
 * Only files ending jpg, gif or png are uploaded.
 * If multiple screenshots occur quickly (<1 second apart) not all may be uploaded.
+* Files to upload are determined by the file modification time. If you drag and drop existing files they will
+  not be detected and uploaded. Only newly created files will be detected.
 
 ## TODO
-This is just a quick hack. Open to suggestions on new features and improvements.
+This is just a relatively quick hack. Open to suggestions on new features and improvements.
 
 Open an [issue](https://github.com/tardisx/discord-auto-upload/issues/new) and let me know.
+Please include any relevant logs from the console when reporting bugs.

build-release.pl

@@ -3,11 +3,11 @@
 use strict;
 use warnings;
 
-open my $fh, "<", "dau.go" || die $!;
+open my $fh, "<", "config/config.go" || die $!;
 
 my $version;
 while (<$fh>) {
-  $version = $1 if /^const\s+current_version.*?"([\d\.]+)"/;
+  $version = $1 if /^const\s+CurrentVersion.*?"([\d\.]+)"/;
 }
 close $fh;
 
@@ -19,9 +19,9 @@ system "mkdir", "release";
 system "mkdir", "dist";
 
 my %build = (
-  win   => { env => { GOOS => 'windows', GOARCH => '386' }, filename => 'dau.exe' },
+  win   => { env => { GOOS => 'windows', GOARCH => 'amd64' }, filename => 'dau.exe' },
-  linux => { env => { GOOS => 'linux',   GOARCH => '386' }, filename => 'dau' },
+  linux => { env => { GOOS => 'linux',   GOARCH => 'amd64' }, filename => 'dau' },
-  mac   => { env => { GOOS => 'darwin',  GOARCH => '386' }, filename => 'dau' },
+  mac   => { env => { GOOS => 'darwin',  GOARCH => 'amd64' }, filename => 'dau' },
 ); 
 
 foreach my $type (keys %build) {
@@ -30,6 +30,7 @@ foreach my $type (keys %build) {
 
 add_extras();
 
+system(qw{go generate});
 foreach my $type (keys %build) {
   local $ENV{GOOS}   = $build{$type}->{env}->{GOOS};
   local $ENV{GOARCH} = $build{$type}->{env}->{GOARCH};
@@ -38,15 +39,5 @@ foreach my $type (keys %build) {
 }
 
 sub add_extras {
-  # bat file for windows
+  # we used to have a .bat file here, but no longer needed
-
-  open (my $fh, ">", "release/win/dau.bat") || die $!;
-  print $fh 'set WEBHOOK_URL=https://yourdiscordwebhookURLhere' . "\r\n";
-  print $fh 'set SCREENSHOTS="C:\your\screenshot\directory\here"' ."\r\n";
-  print $fh 'set USERNAME="Posted by Joe Bloggs"' . "\r\n";
-  print $fh 'set WATCH=10' . "\r\n";
-
-  print $fh 'dau.exe --webhook %WEBHOOK_URL% --directory %SCREENSHOTS% --username %USERNAME% --watch %WATCH%' . "\r\n";
-  print $fh 'pause' . "\r\n";
-  close $fh;
 }

config/config.go

@@ -0,0 +1,72 @@
+package config
+
+import (
+  "github.com/mitchellh/go-homedir"
+  "log"
+  "os"
+  "encoding/json"
+  "io/ioutil"
+)
+
+// Config for the application
+var Config struct {
+	WebHookURL  string
+	Path        string
+	Watch       int
+	Username    string
+	NoWatermark bool
+	Exclude     string
+}
+
+const CurrentVersion string = "0.7"
+
+// Load the current config or initialise with defaults
+func LoadOrInit() {
+  configPath := configPath()
+  log.Printf("Trying to load from %s\n", configPath)
+  _, err := os.Stat(configPath)
+  if os.IsNotExist(err) {
+    log.Printf("NOTE: No config file, writing out sample configuration")
+    log.Printf("You need to set the configuration via the web interface")
+
+    Config.WebHookURL = ""
+    Config.Path = homeDir() + string(os.PathSeparator) + "screenshots"
+    Config.Watch = 10
+    SaveConfig()
+  } else {
+    LoadConfig()
+  }
+}
+
+func LoadConfig() {
+  path := configPath()
+  data, err := ioutil.ReadFile(path)
+  if err != nil {
+    log.Fatalf("cannot read config file %s: %s", path, err.Error())
+  }
+  err = json.Unmarshal([]byte(data), &Config)
+  if err != nil {
+    log.Fatalf("cannot decode config file %s: %s", path, err.Error())
+  }
+}
+
+func SaveConfig() {
+  log.Print("saving configuration")
+  path := configPath()
+  jsonString, _ := json.Marshal(Config)
+  err := ioutil.WriteFile(path, jsonString, os.ModePerm)
+  if (err != nil) {
+    log.Fatalf("Cannot save config %s: %s", path, err.Error())
+  }
+}
+
+func homeDir() string {
+  dir, err := homedir.Dir()
+  if (err != nil) { panic (err) }
+  return dir;
+}
+
+func configPath() string {
+  homeDir := homeDir()
+  return homeDir + string(os.PathSeparator) + ".dau.json"
+}

data/config.html

@@ -0,0 +1,153 @@
+
+ <main role="main" class="inner DAU">
+   <h1 class="DAU-heading">Config</h1>
+   <p class="lead">Discord-auto-upload configuration</p>
+
+   <form class="">
+     <div class="form-row align-items-center config-item" data-key="webhook">
+       <div class="col-sm-5 my-1">
+         <span>Discord WebHook URL</span>
+       </div>
+       <div class="col-sm-4 my-1">
+         <label class="sr-only" for="inlineFormInputName">Name</label>
+         <input type="text" class="form-control rest-field" placeholder="https://....">
+       </div>
+       <div class="col-auto my-1">
+         <button type="submit" class="btn btn-primary">update</button>
+       </div>
+     </div>
+   </form>
+
+   <form class="">
+     <div class="form-row align-items-center config-item" data-key="username">
+       <div class="col-sm-5 my-1">
+         <span>Bot username (optional)</span>
+       </div>
+       <div class="col-sm-4 my-1">
+         <label class="sr-only" for="inlineFormInputName">Name</label>
+         <input type="text" class="form-control rest-field" placeholder="">
+       </div>
+       <div class="col-auto my-1">
+         <button type="submit" class="btn btn-primary">update</button>
+       </div>
+     </div>
+   </form>
+
+   <form class="">
+     <div class="form-row align-items-center config-item" data-key="directory">
+       <div class="col-sm-5 my-1">
+         <span>Directory to watch</span>
+       </div>
+       <div class="col-sm-4 my-1">
+         <label class="sr-only" for="inlineFormInputName">Name</label>
+         <input type="text" class="form-control rest-field" placeholder="/...">
+       </div>
+       <div class="col-auto my-1">
+         <button type="submit" class="btn btn-primary">update</button>
+       </div>
+     </div>
+   </form>
+
+   <form class="">
+     <div class="form-row align-items-center config-item" data-key="watch">
+       <div class="col-sm-5 my-1">
+         <span>Period between filesystem checks (seconds)</span>
+       </div>
+       <div class="col-sm-4 my-1">
+         <label class="sr-only" for="inlineFormInputName">Seconds</label>
+         <input type="text" class="form-control rest-field " placeholder="/...">
+       </div>
+       <div class="col-auto my-1">
+         <button type="submit" class="btn btn-primary">update</button>
+       </div>
+     </div>
+   </form>
+
+   <form class="">
+     <div class="form-row align-items-center config-item" data-key="nowatermark">
+       <div class="col-sm-5 my-1">
+         <span>Do not watermark images</span>
+       </div>
+       <div class="col-sm-4 my-1">
+         <div class="custom-control custom-switch">
+           <input type="checkbox" class="custom-control-input rest-field rest-field-boolean" id="input-nowatermark">
+           <label class="custom-control-label" for="input-nowatermark">&nbsp;</label>
+           <span id="sadness" style="">😭</span>
+         </div>
+       </div>
+       <div class="col-auto my-1">
+         <button type="submit" class="btn btn-primary">update</button>
+       </div>
+     </div>
+   </form>
+
+   <form class="">
+     <div class="form-row align-items-center config-item" data-key="exclude">
+       <div class="col-sm-5 my-1">
+         <span>Files to exclude</span>
+       </div>
+       <div class="col-sm-4 my-1">
+         <label class="sr-only" for="input-exclude">Name</label>
+         <input type="text" id="input-exclude" class="form-control rest-field" placeholder="">
+       </div>
+       <div class="col-auto my-1">
+         <button type="submit" class="btn btn-primary">update</button>
+       </div>
+     </div>
+   </form>
+
+ </main>
+
+
+<script>
+function update_sadness () {
+  if ($('#input-nowatermark').prop('checked')) {
+    $('#sadness').css('visibility','');
+  }
+  else {
+    $('#sadness').css('visibility','hidden');
+  }
+}
+$(document).ready(function() {
+
+  $('#input-nowatermark').on('click', function() { update_sadness(); });
+
+  // populate each field
+  $('.config-item').each(function() {
+    let el = $(this);
+    let key = el.data('key');
+
+    $.ajax({ method: 'get', url: '/rest/config/'+key})
+     .done(function(data) {
+       var this_el = $(".config-item[data-key='"+key+"']").find('.rest-field');
+       if (this_el.hasClass('rest-field-boolean')) {
+         this_el.prop('checked', data.Value);
+       }
+       else {
+         this_el.val(data.Value);
+       }
+       update_sadness();
+
+     });
+    });
+
+  // respond to button clicks to update
+  $('.config-item button').on('click', function(e,f) {
+    key = $(this).parents('.config-item').data('key');
+    val = $(this).parents('.config-item').find('.rest-field').val();
+    if ($(this).parents('.config-item').find('.rest-field-boolean').length) {
+      val = $(this).parents('.config-item').find('.rest-field').prop('checked') ? 1 : 0;
+    }
+    $.post('/rest/config/'+key, { value: val })
+     .done(function(d) {
+       if (d.Success) {
+         alert('Updated config');
+       } else {
+         alert("Error: " + d.Error);
+       }
+     });
+
+    return false;
+  });
+});
+</script>

data/dau.css

@@ -0,0 +1,106 @@
+/*
+ * Globals
+ */
+
+/* Links */
+a,
+a:focus,
+a:hover {
+  color: #fff;
+}
+
+/* Custom default button */
+.btn-secondary,
+.btn-secondary:hover,
+.btn-secondary:focus {
+  color: #333;
+  text-shadow: none; /* Prevent inheritance from `body` */
+  background-color: #fff;
+  border: .05rem solid #fff;
+}
+
+
+/*
+ * Base structure
+ */
+
+html,
+body {
+  height: 100%;
+  background-color: #333;
+}
+
+body {
+  display: -ms-flexbox;
+  display: flex;
+  color: #fff;
+  text-shadow: 0 .05rem .1rem rgba(0, 0, 0, .5);
+  box-shadow: inset 0 0 5rem rgba(0, 0, 0, .5);
+}
+
+.DAU-container {
+  max-width: 42em;
+}
+
+
+/*
+ * Header
+ */
+.masthead {
+  margin-bottom: 2rem;
+}
+
+.masthead-brand {
+  margin-bottom: 0;
+}
+
+.nav-masthead .nav-link {
+  padding: .25rem 0;
+  font-weight: 700;
+  color: rgba(255, 255, 255, .5);
+  background-color: transparent;
+  border-bottom: .25rem solid transparent;
+}
+
+.nav-masthead .nav-link:hover,
+.nav-masthead .nav-link:focus {
+  border-bottom-color: rgba(255, 255, 255, .25);
+}
+
+.nav-masthead .nav-link + .nav-link {
+  margin-left: 1rem;
+}
+
+.nav-masthead .active {
+  color: #fff;
+  border-bottom-color: #fff;
+}
+
+@media (min-width: 48em) {
+  .masthead-brand {
+    float: left;
+  }
+  .nav-masthead {
+    float: right;
+  }
+}
+
+
+/*
+ * Cover
+ */
+.cover {
+  padding: 0 1.5rem;
+}
+.cover .btn-lg {
+  padding: .75rem 1.25rem;
+  font-weight: 700;
+}
+
+
+/*
+ * Footer
+ */
+.mastfoot {
+  color: rgba(255, 255, 255, .5);
+}

data/index.html

@@ -0,0 +1,8 @@
+
+ <main role="main" class="inner DAU">
+   <h1 class="DAU-heading">Discord Auto Upload</h1>
+   <p class="lead">Hey look, it's DAU :-)</p>
+   <p class="lead">
+     <a href="https://github.com/tardisx/discord-auto-upload" class="btn btn-lg btn-secondary">Learn more</a>
+   </p>
+ </main>

data/wrapper.tmpl

@@ -0,0 +1,58 @@
+<!doctype html>
+<html lang="en">
+<head>
+  <meta charset="utf-8">
+  <meta name="viewport" content="width=device-width, initial-scale=1, shrink-to-fit=no">
+
+
+  <link rel="stylesheet" href="https://cdn.jsdelivr.net/npm/bootstrap@4.6.0/dist/css/bootstrap.min.css" integrity="sha384-B0vP5xmATw1+K9KRQjQERJvTumQW0nPEzvF6L/Z6nronJ3oUOFUFpCjEUQouq2+l" crossorigin="anonymous">
+  <script   src="https://code.jquery.com/jquery-3.5.1.min.js"   integrity="sha256-9/aliU8dGd2tb6OSsuzixeV4y/faTqgFtohetphbbj0="   crossorigin="anonymous"></script>
+  <script src="https://cdn.jsdelivr.net/npm/bootstrap@4.6.0/dist/js/bootstrap.bundle.min.js" integrity="sha384-Piv4xVNRyMGpqkS2by6br4gNJ7DXjqk09RmUpJ8jgGtD7zP9yug3goQfGII0yAns" crossorigin="anonymous"></script>
+
+
+  <style>
+  .bd-placeholder-img {
+    font-size: 1.125rem;
+    text-anchor: middle;
+    -webkit-user-select: none;
+    -moz-user-select: none;
+    -ms-user-select: none;
+    user-select: none;
+  }
+
+  @media (min-width: 768px) {
+    .bd-placeholder-img-lg {
+      font-size: 3.5rem;
+    }
+  }
+</style>
+
+<!-- Custom styles for this template -->
+<link href="/dau.css" rel="stylesheet">
+</head>
+
+<body class="text-center">
+
+<div class="DAU-container d-flex w-100 h-100 p-3 mx-auto flex-column">
+ <header class="masthead mb-auto">
+   <div class="inner">
+     <h3 class="masthead-brand">discord-auto-upload ({{.Version}})</h3>
+     <nav class="nav nav-masthead justify-content-center">
+       <a class="nav-link {{ if eq .Path "index.html"}} active {{ end }}" href="/">Home</a>
+       <a class="nav-link {{ if eq .Path "config.html"}} active {{ end }}" href="/config.html">Config</a>
+     </nav>
+   </div>
+ </header>
+
+{{.Body}}
+
+ <footer class="mastfoot mt-auto">
+   <div class="inner">
+     <!-- <p>DAU template for <a href="https://getbootstrap.com/">Bootstrap</a>, by <a href="https://twitter.com/mdo">@mdo</a>.</p> -->
+   </div>
+ </footer>
+</div>
+
+
+</body>
+</html>

dau.go

@@ -1,168 +1,195 @@
 package main
 
+//go:generate go-bindata -pkg assets -o assets/static.go -prefix data/ data
+
 import (
-  "fmt"
-  "strings"
-  "github.com/pborman/getopt"
-  "path/filepath"
-  "os"
-  "time"
-  "net/http"
-  "log"
-  "io"
 	"bytes"
-  "mime/multipart"
 	"encoding/json"
+	"fmt"
+	"io"
 	"io/ioutil"
+	"log"
+	"mime/multipart"
+	"net/http"
+	"os"
+	"path/filepath"
+	"strings"
+	"time"
+
+	"image"
+
+	_ "image/gif"
+	_ "image/jpeg"
+	_ "image/png"
+
+	"github.com/fogleman/gg"
+	"github.com/pborman/getopt"
+	// "github.com/skratchdot/open-golang/open"
+	"golang.org/x/image/font/inconsolata"
+
+	"github.com/tardisx/discord-auto-upload/config"
+	"github.com/tardisx/discord-auto-upload/web"
 )
 
-const current_version = "0.4"
+var lastCheck = time.Now()
-
+var newLastCheck = time.Now()
-var last_check     = time.Now()
-var new_last_check = time.Now()
-
-var webhook_url  string
-var username     string
 
 func main() {
-  webhook_opt, path, watch, username_opt := parse_options()
-  webhook_url = webhook_opt
-  username    = username_opt
 
-  check_path(path)
+	parseOptions()
-  check_updates()
 
-  log.Print("Waiting for images to appear in ", path)
+	// log.Print("Opening web browser")
+	// open.Start("http://localhost:9090")
+	go web.StartWebServer()
 
+	checkUpdates()
+
+	log.Print("Waiting for images to appear in ", config.Config.Path)
 	// wander the path, forever
 	for {
-    err := filepath.Walk(path, check_file)
+		if checkPath(config.Config.Path) {
-    if err != nil { log.Fatal("could not watch path", err) }
+			err := filepath.Walk(config.Config.Path,
-    last_check = new_last_check
+				func(path string, f os.FileInfo, err error) error { return checkFile(path, f, err) })
-    time.Sleep(time.Duration(watch)*time.Second)
+			if err != nil {
+				log.Fatal("could not watch path", err)
+			}
+			lastCheck = newLastCheck
+		}
+		log.Printf("sleeping for %ds before next check of %s", config.Config.Watch, config.Config.Path)
+		time.Sleep(time.Duration(config.Config.Watch) * time.Second)
 	}
 }
 
-func check_path(path string) {
+func checkPath(path string) bool {
 	src, err := os.Stat(path)
 	if err != nil {
-    log.Fatal(err)
+		log.Printf("Problem with path '%s': %s", path, err)
+		return false
 	}
 	if !src.IsDir() {
-    log.Fatal(path, " is not a directory")
+		log.Printf("Problem with path '%s': is not a directory", path)
-    os.Exit(1)
+		return false
 	}
+	return true
 }
 
-func check_updates() {
+func checkUpdates() {
 
 	type GithubRelease struct {
-    Html_url string
+		HTMLURL string
-    Tag_name string
+		TagName string
 		Name    string
 		Body    string
 	}
 
-  client := &http.Client{ Timeout: time.Second * 5 }
+	client := &http.Client{Timeout: time.Second * 5}
 	resp, err := client.Get("https://api.github.com/repos/tardisx/discord-auto-upload/releases/latest")
-  if (err != nil) {
+	if err != nil {
-    log.Fatal("could not check for updates:", err)
+		log.Print("WARNING: Update check failed: ", err)
+		return
 	}
 	defer resp.Body.Close()
 	body, err := ioutil.ReadAll(resp.Body)
-  if (err != nil) {
+	if err != nil {
 		log.Fatal("could not check read update response")
 	}
 
 	var latest GithubRelease
 	err = json.Unmarshal(body, &latest)
 
-  if (err != nil) {
+	if err != nil {
 		log.Fatal("could not parse JSON: ", err)
 	}
 
-  if (current_version < latest.Tag_name) {
+	if config.CurrentVersion < latest.TagName {
-    fmt.Printf("You are currently on version %s, but version %s is available\n", current_version, latest.Tag_name)
+		fmt.Printf("You are currently on version %s, but version %s is available\n", config.CurrentVersion, latest.TagName)
 		fmt.Println("----------- Release Info -----------")
 		fmt.Println(latest.Body)
 		fmt.Println("------------------------------------")
+		fmt.Println("Upgrade at https://github.com/tardisx/discord-auto-upload/releases/latest")
 	}
 
 }
 
-func parse_options() (webhook_url string, path string, watch int, username string) {
+func parseOptions() {
 
 	// Declare the flags to be used
-  webhookFlag  := getopt.StringLong("webhook",   'w', "", "discord webhook URL")
+	helpFlag := getopt.BoolLong("help", 'h', "help")
-  pathFlag     := getopt.StringLong("directory", 'd', "", "directory to scan, optional, defaults to current directory")
+	versionFlag := getopt.BoolLong("version", 'v', "show version")
-  watchFlag    := getopt.Int16Long ("watch",     's', 10, "time between scans")
-  usernameFlag := getopt.StringLong("username",  'u', "", "username for the bot upload")
-  helpFlag     := getopt.BoolLong  ("help",      'h', "help")
-  versionFlag  := getopt.BoolLong  ("version",   'v', "show version")
 	getopt.SetParameters("")
 
 	getopt.Parse()
 
-  if (*helpFlag) {
+	if *helpFlag {
 		getopt.PrintUsage(os.Stderr)
 		os.Exit(0)
 	}
 
-  if (*versionFlag) {
+	if *versionFlag {
 		fmt.Println("dau - https://github.com/tardisx/discord-auto-upload")
-    fmt.Printf("Version: %s\n", current_version)
+		fmt.Printf("Version: %s\n", config.CurrentVersion)
 		os.Exit(0)
 	}
 
-  if ! getopt.IsSet("directory") {
+	// grab the config
-    *pathFlag = "./"
+	config.LoadOrInit()
-    log.Println("Defaulting to current directory")
-  }
-
-  if ! getopt.IsSet("webhook") {
-    log.Fatal("ERROR: You must specify a --webhook URL")
-  }
-
-  return *webhookFlag, *pathFlag, int(*watchFlag), *usernameFlag
 }
 
-func check_file(path string, f os.FileInfo, err error) error {
+func checkFile(path string, f os.FileInfo, err error) error {
 
-  if f.ModTime().After(last_check) && f.Mode().IsRegular() {
+	if f.ModTime().After(lastCheck) && f.Mode().IsRegular() {
 
-    if file_eligible(path) {
+		if fileEligible(path) {
 			// process file
-      process_file(path)
+			processFile(path)
 		}
 
-    if new_last_check.Before(f.ModTime()) {
+		if newLastCheck.Before(f.ModTime()) {
-      new_last_check = f.ModTime()
+			newLastCheck = f.ModTime()
 		}
 	}
 
 	return nil
 }
 
-func file_eligible(file string) (bool) {
+func fileEligible(file string) bool {
+
+	if config.Config.Exclude != "" && strings.Contains(file, config.Config.Exclude) {
+		return false
+	}
+
 	extension := strings.ToLower(filepath.Ext(file))
 	if extension == ".png" || extension == ".jpg" || extension == ".gif" {
 		return true
 	}
+
 	return false
 }
 
-func process_file(file string) {
+func processFile(file string) {
+
+	if !config.Config.NoWatermark {
+		log.Print("Copying to temp location and watermarking ", file)
+		file = mungeFile(file)
+	}
+
+	if config.Config.WebHookURL == "" {
+		log.Print("WebHookURL is not configured - cannot upload!")
+		return
+	}
+
 	log.Print("Uploading ", file)
 
-  extraParams := map[string]string{ }
+	extraParams := map[string]string{}
 
-  if (username != "") {
+	if config.Config.Username != "" {
-    extraParams["username"] = username
+		log.Print("Overriding username with " + config.Config.Username)
+		extraParams["username"] = config.Config.Username
 	}
 
 	type DiscordAPIResponseAttachment struct {
-    Url string
+		URL      string
-    Proxy_url string
+		ProxyURL string
 		Size     int
 		Width    int
 		Height   int
@@ -171,53 +198,88 @@ func process_file(file string) {
 
 	type DiscordAPIResponse struct {
 		Attachments []DiscordAPIResponseAttachment
-    Id int64 `json:",string"`
+		ID          int64 `json:",string"`
 	}
 
-  request, err := newfileUploadRequest(webhook_url, extraParams, "file", file)
+	var retriesRemaining = 5
+	for retriesRemaining > 0 {
+
+		request, err := newfileUploadRequest(config.Config.WebHookURL, extraParams, "file", file)
 		if err != nil {
 			log.Fatal(err)
 		}
 		start := time.Now()
-  client := &http.Client{ Timeout: time.Second * 30 }
+		client := &http.Client{Timeout: time.Second * 30}
 		resp, err := client.Do(request)
 		if err != nil {
-
+			log.Print("Error performing request:", err)
-    log.Fatal("Error performing request:", err)
+			retriesRemaining--
-
+			sleepForRetries(retriesRemaining)
+			continue
 		} else {
 
-    if (resp.StatusCode != 200) {
+			if resp.StatusCode != 200 {
 				log.Print("Bad response from server:", resp.StatusCode)
-      return
+				if b, err := ioutil.ReadAll(resp.Body); err == nil {
+					log.Print("Body:", string(b))
+				}
+				retriesRemaining--
+				sleepForRetries(retriesRemaining)
+				continue
 			}
 
-    res_body, err := ioutil.ReadAll(resp.Body)
+			resBody, err := ioutil.ReadAll(resp.Body)
-    if (err != nil) {
+			if err != nil {
-      log.Fatal("could not deal with body", err)
+				log.Print("could not deal with body: ", err)
+				retriesRemaining--
+				sleepForRetries(retriesRemaining)
+				continue
 			}
 			resp.Body.Close()
 
 			var res DiscordAPIResponse
-    err = json.Unmarshal(res_body, &res)
+			err = json.Unmarshal(resBody, &res)
 
-    if (err != nil) {
+			if err != nil {
 				log.Print("could not parse JSON: ", err)
-      fmt.Println("Response was:", string(res_body[:]))
+				fmt.Println("Response was:", string(resBody[:]))
-      return
+				retriesRemaining--
+				sleepForRetries(retriesRemaining)
+				continue
 			}
-    if (len(res.Attachments) < 1) {
+			if len(res.Attachments) < 1 {
 				log.Print("bad response - no attachments?")
-      return
+				retriesRemaining--
+				sleepForRetries(retriesRemaining)
+				continue
 			}
 			var a = res.Attachments[0]
 			elapsed := time.Since(start)
 			rate := float64(a.Size) / elapsed.Seconds() / 1024.0
 
-    log.Printf("Uploaded to %s %dx%d", a.Url, a.Width, a.Height)
+			log.Printf("Uploaded to %s %dx%d", a.URL, a.Width, a.Height)
-    log.Printf("id: %d, %d bytes transferred in %.2f seconds (%.2f KiB/s)", res.Id, a.Size, elapsed.Seconds(), rate)
+			log.Printf("id: %d, %d bytes transferred in %.2f seconds (%.2f KiB/s)", res.ID, a.Size, elapsed.Seconds(), rate)
+			break
+		}
 	}
 
+	if !config.Config.NoWatermark {
+		log.Print("Removing temporary file ", file)
+		os.Remove(file)
+	}
+
+	if retriesRemaining == 0 {
+		log.Fatal("Failed to upload, even after retries")
+	}
+}
+
+func sleepForRetries(retry int) {
+	if retry == 0 {
+		return
+	}
+	retryTime := (6-retry)*(6-retry) + 6
+	log.Printf("Will retry in %d seconds (%d remaining attempts)", retryTime, retry)
+	time.Sleep(time.Duration(retryTime) * time.Second)
 }
 
 func newfileUploadRequest(uri string, params map[string]string, paramName, path string) (*http.Request, error) {
@@ -234,6 +296,9 @@ func newfileUploadRequest(uri string, params map[string]string, paramName, path
 		return nil, err
 	}
 	_, err = io.Copy(part, file)
+	if err != nil {
+		log.Fatal("Could not copy: ", err)
+	}
 
 	for key, val := range params {
 		_ = writer.WriteField(key, val)
@@ -247,3 +312,46 @@ func newfileUploadRequest(uri string, params map[string]string, paramName, path
 	req.Header.Set("Content-Type", writer.FormDataContentType())
 	return req, err
 }
+
+func mungeFile(path string) string {
+
+	reader, err := os.Open(path)
+	if err != nil {
+		log.Fatal(err)
+	}
+	defer reader.Close()
+
+	im, _, err := image.Decode(reader)
+	if err != nil {
+		log.Fatal(err)
+	}
+	bounds := im.Bounds()
+	// var S float64 = float64(bounds.Max.X)
+
+	dc := gg.NewContext(bounds.Max.X, bounds.Max.Y)
+	dc.Clear()
+	dc.SetRGB(0, 0, 0)
+
+	dc.SetFontFace(inconsolata.Regular8x16)
+
+	dc.DrawImage(im, 0, 0)
+
+	dc.DrawRoundedRectangle(0, float64(bounds.Max.Y-18.0), 320, float64(bounds.Max.Y), 0)
+	dc.SetRGB(0, 0, 0)
+	dc.Fill()
+
+	dc.SetRGB(1, 1, 1)
+
+	dc.DrawString("github.com/tardisx/discord-auto-upload", 5.0, float64(bounds.Max.Y)-5.0)
+
+	tempfile, err := ioutil.TempFile("", "dau")
+	if err != nil {
+		log.Fatal(err)
+	}
+	tempfile.Close()
+	os.Remove(tempfile.Name())
+	actualName := tempfile.Name() + ".png"
+
+	dc.SavePNG(actualName)
+	return actualName
+}

go.mod

@@ -0,0 +1,12 @@
+module github.com/tardisx/discord-auto-upload
+
+go 1.15
+
+require (
+	github.com/fogleman/gg v1.3.0
+	github.com/golang/freetype v0.0.0-20170609003504-e2365dfdc4a0 // indirect
+	github.com/mitchellh/go-homedir v1.1.0
+	github.com/pborman/getopt v1.1.0
+	github.com/skratchdot/open-golang v0.0.0-20200116055534-eef842397966
+	golang.org/x/image v0.0.0-20201208152932-35266b937fa6
+)

go.sum

@@ -0,0 +1,13 @@
+github.com/fogleman/gg v1.3.0 h1:/7zJX8F6AaYQc57WQCyN9cAIz+4bCJGO9B+dyW29am8=
+github.com/fogleman/gg v1.3.0/go.mod h1:R/bRT+9gY/C5z7JzPU0zXsXHKM4/ayA+zqcVNZzPa1k=
+github.com/golang/freetype v0.0.0-20170609003504-e2365dfdc4a0 h1:DACJavvAHhabrF08vX0COfcOBJRhZ8lUbR+ZWIs0Y5g=
+github.com/golang/freetype v0.0.0-20170609003504-e2365dfdc4a0/go.mod h1:E/TSTwGwJL78qG/PmXZO1EjYhfJinVAhrmmHX6Z8B9k=
+github.com/mitchellh/go-homedir v1.1.0 h1:lukF9ziXFxDFPkA1vsr5zpc1XuPDn/wFntq5mG+4E0Y=
+github.com/mitchellh/go-homedir v1.1.0/go.mod h1:SfyaCUpYCn1Vlf4IUYiD9fPX4A5wJrkLzIz1N1q0pr0=
+github.com/pborman/getopt v1.1.0 h1:eJ3aFZroQqq0bWmraivjQNt6Dmm5M0h2JcDW38/Azb0=
+github.com/pborman/getopt v1.1.0/go.mod h1:FxXoW1Re00sQG/+KIkuSqRL/LwQgSkv7uyac+STFsbk=
+github.com/skratchdot/open-golang v0.0.0-20200116055534-eef842397966 h1:JIAuq3EEf9cgbU6AtGPK4CTG3Zf6CKMNqf0MHTggAUA=
+github.com/skratchdot/open-golang v0.0.0-20200116055534-eef842397966/go.mod h1:sUM3LWHvSMaG192sy56D9F7CNvL7jUJVXoqM1QKLnog=
+golang.org/x/image v0.0.0-20201208152932-35266b937fa6 h1:nfeHNc1nAqecKCy2FCy4HY+soOOe5sDLJ/gZLbx6GYI=
+golang.org/x/image v0.0.0-20201208152932-35266b937fa6/go.mod h1:FeLwcggjj3mMvU+oOTbSwawSJRM1uh48EjtB4UJZlP0=
+golang.org/x/text v0.3.0/go.mod h1:NqM8EUOU14njkJ3fqMW+pc6Ldnwhi/IjpwHt7yyuwOQ=

web/server.go

@@ -0,0 +1,290 @@
+package web
+
+import (
+	"encoding/json"
+	"fmt"
+	"github.com/tardisx/discord-auto-upload/assets"
+	"github.com/tardisx/discord-auto-upload/config"
+	"log"
+	"mime"
+	"net/http"
+	"os"
+	"path/filepath"
+	"regexp"
+	"strconv"
+	"text/template"
+)
+
+// DAUWebServer - stuff for the web server
+type DAUWebServer struct {
+	ConfigChange chan int
+}
+
+type valueStringResponse struct {
+	Success bool   `json: 'success'`
+	Value   string `json: 'value'`
+}
+
+type valueBooleanResponse struct {
+	Success bool `json: 'success'`
+	Value   bool `json: 'value'`
+}
+
+type errorResponse struct {
+	Success bool   `json: 'success'`
+	Error   string `json: 'error'`
+}
+
+func getStatic(w http.ResponseWriter, r *http.Request) {
+	// haha this is dumb and I should change it
+	// fmt.Println(r.URL)
+	re := regexp.MustCompile(`[^a-zA-Z0-9\.]`)
+	path := r.URL.Path[1:]
+	sanitized_path := re.ReplaceAll([]byte(path), []byte("_"))
+
+	if string(sanitized_path) == "" {
+		sanitized_path = []byte("index.html")
+	}
+
+	data, err := assets.Asset(string(sanitized_path))
+	if err != nil {
+		// Asset was not found.
+		fmt.Fprintln(w, err)
+	}
+
+	extension := filepath.Ext(string(sanitized_path))
+
+	// is this a HTML file? if so wrap it in the template
+	if extension == ".html" {
+		wrapper, _ := assets.Asset("wrapper.tmpl")
+		t := template.Must(template.New("wrapper").Parse(string(wrapper)))
+		var b struct {
+			Body    string
+			Path    string
+			Version string
+		}
+		b.Body = string(data)
+		b.Path = string(sanitized_path)
+		b.Version = config.CurrentVersion
+		t.Execute(w, b)
+		return
+	}
+
+	// otherwise we are a static thing
+	w.Header().Set("Content-Type", mime.TypeByExtension(extension))
+
+	w.Write(data)
+	//
+}
+
+// TODO there should be locks around all these config accesses
+func getSetWebhook(w http.ResponseWriter, r *http.Request) {
+	w.Header().Set("Content-Type", "application/json")
+
+	if r.Method == "GET" {
+		getResponse := valueStringResponse{Success: true, Value: config.Config.WebHookURL}
+
+		// I can't see any way this will fail
+		js, _ := json.Marshal(getResponse)
+		w.Write(js)
+	} else if r.Method == "POST" {
+		err := r.ParseForm()
+		if err != nil {
+			log.Fatal(err)
+		}
+		config.Config.WebHookURL = r.PostForm.Get("value")
+		config.SaveConfig()
+		postResponse := valueStringResponse{Success: true, Value: config.Config.WebHookURL}
+
+		js, _ := json.Marshal(postResponse)
+		w.Write(js)
+	}
+}
+
+// TODO there should be locks around all these config accesses
+func getSetUsername(w http.ResponseWriter, r *http.Request) {
+	w.Header().Set("Content-Type", "application/json")
+
+	if r.Method == "GET" {
+		getResponse := valueStringResponse{Success: true, Value: config.Config.Username}
+
+		// I can't see any way this will fail
+		js, _ := json.Marshal(getResponse)
+		w.Write(js)
+	} else if r.Method == "POST" {
+		err := r.ParseForm()
+		if err != nil {
+			log.Fatal(err)
+		}
+		config.Config.Username = r.PostForm.Get("value")
+		config.SaveConfig()
+
+		postResponse := valueStringResponse{Success: true, Value: config.Config.Username}
+
+		js, _ := json.Marshal(postResponse)
+		w.Write(js)
+	}
+}
+
+func getSetWatch(w http.ResponseWriter, r *http.Request) {
+	w.Header().Set("Content-Type", "application/json")
+
+	if r.Method == "GET" {
+		getResponse := valueStringResponse{Success: true, Value: strconv.Itoa(config.Config.Watch)}
+
+		// I can't see any way this will fail
+		js, _ := json.Marshal(getResponse)
+		w.Write(js)
+	} else if r.Method == "POST" {
+		err := r.ParseForm()
+		if err != nil {
+			log.Fatal(err)
+		}
+
+		i, err := strconv.Atoi(r.PostForm.Get("value"))
+
+		if err != nil {
+			response := errorResponse{Success: false, Error: fmt.Sprintf("Bad value for watch: %v", err)}
+			js, _ := json.Marshal(response)
+			w.Write(js)
+			return
+		}
+
+		if i < 1 {
+			response := errorResponse{Success: false, Error: "must be > 0"}
+			js, _ := json.Marshal(response)
+			w.Write(js)
+			return
+		}
+
+		config.Config.Watch = i
+		config.SaveConfig()
+
+		postResponse := valueStringResponse{Success: true, Value: strconv.Itoa(config.Config.Watch)}
+
+		js, _ := json.Marshal(postResponse)
+		w.Write(js)
+	}
+}
+
+func getSetNoWatermark(w http.ResponseWriter, r *http.Request) {
+	w.Header().Set("Content-Type", "application/json")
+
+	if r.Method == "GET" {
+		getResponse := valueBooleanResponse{Success: true, Value: config.Config.NoWatermark}
+
+		// I can't see any way this will fail
+		js, _ := json.Marshal(getResponse)
+		w.Write(js)
+	} else if r.Method == "POST" {
+		err := r.ParseForm()
+		if err != nil {
+			log.Fatal(err)
+		}
+
+		v := r.PostForm.Get("value")
+
+		if v != "0" && v != "1" {
+			response := errorResponse{Success: false, Error: fmt.Sprintf("Bad value for nowatermark: %v", err)}
+			js, _ := json.Marshal(response)
+			w.Write(js)
+			return
+		}
+
+		if v == "0" {
+			config.Config.NoWatermark = false
+		} else {
+			config.Config.NoWatermark = true
+		}
+		config.SaveConfig()
+
+		postResponse := valueBooleanResponse{Success: true, Value: config.Config.NoWatermark}
+
+		js, _ := json.Marshal(postResponse)
+		w.Write(js)
+	}
+}
+
+func getSetDirectory(w http.ResponseWriter, r *http.Request) {
+	w.Header().Set("Content-Type", "application/json")
+
+	if r.Method == "GET" {
+		getResponse := valueStringResponse{Success: true, Value: config.Config.Path}
+
+		// I can't see any way this will fail
+		js, _ := json.Marshal(getResponse)
+		w.Write(js)
+	} else if r.Method == "POST" {
+		err := r.ParseForm()
+		if err != nil {
+			log.Fatal(err)
+		}
+		newPath := r.PostForm.Get("value")
+
+		// sanity check this path
+		stat, err := os.Stat(newPath)
+		if os.IsNotExist(err) {
+			// not exist
+			response := errorResponse{Success: false, Error: fmt.Sprintf("Path: %s - does not exist", newPath)}
+			js, _ := json.Marshal(response)
+			w.Write(js)
+			return
+		} else if !stat.IsDir() {
+			// not a directory
+			response := errorResponse{Success: false, Error: fmt.Sprintf("Path: %s - is not a directory", newPath)}
+			js, _ := json.Marshal(response)
+			w.Write(js)
+			return
+		}
+
+		config.Config.Path = newPath
+		config.SaveConfig()
+
+		postResponse := valueStringResponse{Success: true, Value: config.Config.Path}
+
+		js, _ := json.Marshal(postResponse)
+		w.Write(js)
+	}
+}
+
+func getSetExclude(w http.ResponseWriter, r *http.Request) {
+	w.Header().Set("Content-Type", "application/json")
+
+	if r.Method == "GET" {
+		getResponse := valueStringResponse{Success: true, Value: config.Config.Exclude}
+		// I can't see any way this will fail
+		js, _ := json.Marshal(getResponse)
+		w.Write(js)
+	} else if r.Method == "POST" {
+		err := r.ParseForm()
+		if err != nil {
+			log.Fatal(err)
+		}
+		config.Config.Exclude = r.PostForm.Get("value")
+		config.SaveConfig()
+
+		postResponse := valueStringResponse{Success: true, Value: config.Config.Exclude}
+
+		js, _ := json.Marshal(postResponse)
+		w.Write(js)
+	}
+}
+
+
+func StartWebServer() {
+	http.HandleFunc("/", getStatic)
+	http.HandleFunc("/rest/config/webhook", getSetWebhook)
+	http.HandleFunc("/rest/config/username", getSetUsername)
+	http.HandleFunc("/rest/config/watch", getSetWatch)
+	http.HandleFunc("/rest/config/nowatermark", getSetNoWatermark)
+	http.HandleFunc("/rest/config/directory", getSetDirectory)
+	http.HandleFunc("/rest/config/exclude", getSetExclude)
+
+
+	log.Print("Starting web server on http://localhost:9090")
+	err := http.ListenAndServe(":9090", nil) // set listen port
+	if err != nil {
+		log.Fatal("ListenAndServe: ", err)
+	}
+
+}