Init

.gitignore

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+.vscode

conf/config.go

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+package conf
+
+import (
+	"os"
+	"sort"
+
+	"fornaxian.com/pixeldrain-web/log"
+	"github.com/spf13/viper"
+)
+
+var vi *viper.Viper
+
+var defaultConfig = `# Pixeldrain Web UI server configuration
+api_url = "http://127.0.0.1:8080/api"
+static_resource_dir = "res/static"
+template_dir = "res/template"
+debug_mode = false`
+
+// Init reads the config file
+func Init() {
+	if vi != nil {
+		log.Error("Config already initialized, can't ititialize again")
+		return
+	}
+
+	vi = viper.New()
+	vi.SetConfigType("toml")
+	vi.SetConfigName("pdwebconf")
+
+	vi.AddConfigPath(".")
+	vi.AddConfigPath("./conf")
+	vi.AddConfigPath("/etc")
+	vi.AddConfigPath("/usr/local/etc")
+
+	vi.SetDefault("api_url", "http://127.0.0.1:8080/api")
+	vi.SetDefault("static_resource_dir", "./res/static")
+	vi.SetDefault("template_dir", "./res/template")
+	vi.SetDefault("debug_mode", false)
+
+	err := vi.ReadInConfig()
+
+	if err != nil {
+		if _, ok := err.(viper.ConfigFileNotFoundError); ok {
+			writeCfg()
+			log.Warn("Generated config file \"pdapiconf.toml\", please edit and run again.")
+			os.Exit(0)
+		} else if _, ok := err.(viper.ConfigParseError); ok {
+			log.Error("Could not parse config file: ", err)
+		} else {
+			log.Error("Unknown error occured while reading config file: ", err)
+		}
+	}
+
+	log.Info("Web UI configuration:")
+	keys := vi.AllKeys()
+	numKeys := len(keys)
+	sort.Strings(keys)
+	for i, v := range keys {
+		if i == numKeys-1 {
+			log.Info("└%21s: %v", v, vi.Get(v))
+		} else {
+			log.Info("├%21s: %v", v, vi.Get(v))
+		}
+	}
+}
+
+func writeCfg() {
+	file, err := os.Create("pdwebconf.toml")
+
+	if err != nil {
+		log.Error("Could not create config file: ", err)
+	}
+
+	file.WriteString(defaultConfig)
+
+	file.Close()
+}
+
+// ApiURL returns the API URL
+func ApiURL() string {
+	return vi.GetString("api_url")
+}
+func StaticResourceDir() string {
+	return vi.GetString("static_resource_dir")
+}
+func TemplateDir() string {
+	return vi.GetString("template_dir")
+}
+func DebugMode() bool {
+	return vi.GetBool("debug_mode")
+}

init/init.go

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+package init
+
+import (
+	"net/http"
+	"os"
+
+	"fornaxian.com/pixeldrain-web/conf"
+	"fornaxian.com/pixeldrain-web/log"
+	"fornaxian.com/pixeldrain-web/webcontroller"
+	"fornaxian.com/pixeldrain-web/webcontroller/templates"
+	"github.com/julienschmidt/httprouter"
+)
+
+// Init initializes the Pixeldrain Web UI controllers
+func Init(r *httprouter.Router, prefix string) {
+	log.Init()
+	log.Info("Starting web UI server (PID %v)", os.Getpid())
+	conf.Init()
+
+	templates.ParseTemplates()
+
+	// Serve static files
+	r.ServeFiles(prefix+"/res/*filepath", http.Dir(conf.StaticResourceDir()+"/res"))
+
+	r.GET(prefix+"/", webcontroller.ServeHome)
+	r.GET(prefix+"/favicon.ico", webcontroller.ServeFavicon)
+	r.GET(prefix+"/api", webcontroller.ServeAPIDoc)
+	r.GET(prefix+"/history", webcontroller.ServeHistory)
+	r.GET(prefix+"/u/:id", webcontroller.ServeFileViewer)
+	r.GET(prefix+"/u/:id/preview", webcontroller.ServeFilePreview)
+	r.GET(prefix+"/t", webcontroller.ServePaste)
+
+	r.NotFound = http.HandlerFunc(webcontroller.ServeNotFound)
+}

log/log.go

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+package log
+
+import (
+	"fmt"
+	"log"
+	"os"
+	"runtime"
+	"runtime/debug"
+)
+
+var logger *log.Logger
+
+const (
+	LEVEL_DEBUG   = 4
+	LEVEL_INFO    = 3
+	LEVEL_WARNING = 2
+	LEVEL_ERROR   = 1
+)
+
+var logLevel = LEVEL_DEBUG
+
+// Init initializes the logger
+func Init() {
+	logger = log.New(os.Stdout, "pdweb ", log.LUTC)
+}
+
+// SetLogLevel set the loggin verbosity. 0 is lowest (log nothing at all), 4 is
+// highest (log all debug messages)
+func SetLogLevel(level int) {
+	if level < 0 || level > 4 {
+		Error("Invalid log level %v", level)
+		return
+	}
+	logLevel = level
+}
+
+// Debug logs a debug message
+func Debug(msgFmt string, v ...interface{}) {
+	if logLevel < LEVEL_DEBUG {
+		return
+	}
+	if len(v) == 0 {
+		print("DBG", msgFmt)
+	} else {
+		print("DBG", msgFmt, v...)
+	}
+}
+
+// Info logs an info message
+func Info(msgFmt string, v ...interface{}) {
+	if logLevel < LEVEL_INFO {
+		return
+	}
+	if len(v) == 0 {
+		print("INF", msgFmt)
+	} else {
+		print("INF", msgFmt, v...)
+	}
+}
+
+// Warn logs a warning message
+func Warn(msgFmt string, v ...interface{}) {
+	if logLevel < LEVEL_WARNING {
+		return
+	}
+	if len(v) == 0 {
+		print("WRN", msgFmt)
+	} else {
+		print("WRN", msgFmt, v...)
+	}
+}
+
+// Error logs an error message
+func Error(msgFmt string, v ...interface{}) {
+	if logLevel < LEVEL_ERROR {
+		return
+	}
+	if len(v) == 0 {
+		print("ERR", msgFmt)
+	} else {
+		print("ERR", msgFmt, v...)
+	}
+
+	debug.PrintStack()
+}
+
+func print(lvl string, msgFmt string, v ...interface{}) {
+	_, fn, line, _ := runtime.Caller(2)
+
+	msg := fmt.Sprintf("[%s] …%s:%-3d %s", lvl, string(fn[len(fn)-20:]), line, msgFmt)
+
+	if len(v) == 0 {
+		logger.Println(msg)
+	} else {
+		logger.Printf(msg, v...)
+	}
+}

main.go

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+package main
+
+import (
+	"net/http"
+
+	web "fornaxian.com/pixeldrain-web/init"
+	"fornaxian.com/pixeldrain-web/log"
+
+	"github.com/julienschmidt/httprouter"
+)
+
+// This is just a launcher for the web server. During testing the app would
+// be directly embedded by another Go project. And when deployed it will run
+// independently.
+func main() {
+	r := httprouter.New()
+
+	web.Init(r, "")
+
+	err := http.ListenAndServe(":8081", r)
+
+	if err != nil {
+		log.Error("Can't listen and serve Pixeldrain Web: %v", err)
+	}
+}

pixelapi/fileInfo.go

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+package pixelapi
+
+import (
+	"encoding/json"
+
+	"fornaxian.com/pixeldrain-web/conf"
+	"fornaxian.com/pixeldrain-web/log"
+)
+
+// FileInfo File information object from the pixeldrain API
+type FileInfo struct {
+	ID           string `json:"id"`
+	FileName     string `json:"file_name"`
+	DateUpload   int64  `json:"date_upload"`
+	DateLastview int64  `json:"date_last_view"`
+	DaysValid    uint16 `json:"days_valid"`
+	FileSize     uint64 `json:"file_size"`
+	Views        uint   `json:"views"`
+	MimeType     string `json:"mime_type"`
+	Description  string `json:"description"`
+	MimeImage    string `json:"mime_image"`
+	Thumbnail    string `json:"thumbnail"`
+}
+
+// GetFileInfo gets the FileInfo from the pixeldrain API
+func GetFileInfo(id string) *FileInfo {
+	body, err := get(conf.ApiURL() + "/file/" + id + "/info")
+
+	if err != nil {
+		log.Error("req failed: %v", err)
+		return nil
+	}
+	var fileInfo FileInfo
+	err = json.Unmarshal([]byte(body), &fileInfo)
+	if err != nil {
+		log.Error("unmarshal failed: %v. json: %s", err, body)
+		return nil
+	}
+	return &fileInfo
+}

pixelapi/request.go

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+package pixelapi
+
+import "net/http"
+import "io/ioutil"
+
+func get(url string) (string, error) {
+	req, err := http.NewRequest("GET", url, nil)
+	if err != nil {
+		return "", err
+	}
+
+	client := &http.Client{}
+
+	resp, err := client.Do(req)
+	if err != nil {
+		return "", err
+	}
+
+	defer resp.Body.Close()
+
+	bodyBytes, err := ioutil.ReadAll(resp.Body)
+
+	return string(bodyBytes), err
+}

res/static/res/img/clipboard.svg

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res/static/res/img/sia-droplet.svg

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