From 8417e8d7bbf37ac0ac25fc4915131e93ea2bcdcc Mon Sep 17 00:00:00 2001
From: Kevin Chabowski <kevin@kch42.de>
Date: Thu, 1 May 2014 14:31:26 +0200
Subject: Added link to save current earthporn

---
 README.markdown |  8 ++++++++
 earthporn.go    | 48 ++++++++++++++++++++++++++++++++++++++++++++++++
 main.go         | 20 ++++++++++++++++++++
 template.html   |  2 ++
 4 files changed, 78 insertions(+)

diff --git a/README.markdown b/README.markdown
index ccf2d1c..74f1feb 100644
--- a/README.markdown
+++ b/README.markdown
@@ -30,6 +30,14 @@ Example:
 	add-link go               http://www.golang.org
 	add-link another\ example http://www.example.org
 
+### `set-earthporn-savepath`
+
+Sets the diretory to save EarthPorn images to.
+
+Example:
+
+	set-earthporn-savepath /home/foobar/Pictures/earthporn
+
 ## Running
 
 If `$GOPATH/bin` is in your `$PATH`, you can run startpage with the command `startpage`. By default, startpage listens on port 25145. You can change that with a command line switch: `startpage -laddr :<port>`
\ No newline at end of file
diff --git a/earthporn.go b/earthporn.go
index a7800ef..bfa3e81 100644
--- a/earthporn.go
+++ b/earthporn.go
@@ -4,10 +4,13 @@ import (
 	"bytes"
 	"encoding/json"
 	"errors"
+	"fmt"
 	"io"
 	"log"
 	"mime"
 	"net/http"
+	"os"
+	"path"
 	"strings"
 )
 
@@ -24,6 +27,7 @@ type EarthPorn struct {
 	URL       string `json:"url,omitempty"`
 	Permalink string `json:"permalink"`
 	Domain    string `json:"domain"`
+	Saved     bool
 	data      []byte
 	mediatype string
 }
@@ -98,4 +102,48 @@ func (p *EarthPorn) fetch() bool {
 	p.data = buf.Bytes()
 	return true
 }
+
+var extensions = map[string]string{
+	"image/png":      "png",
+	"image/jpeg":     "jpg",
+	"image/gif":      "gif",
+	"image/x-ms-bmp": "bmp",
+	"image/x-bmp":    "bmp",
+	"image/bmp":      "bmp",
+	"image/tiff":     "tiff",
+	"image/tiff-fx":  "tiff",
+	"image/x-targa":  "tga",
+	"image/x-tga":    "tga",
+	"image/webp":     "webp",
+}
+
+var savepath = ""
+
+func setSavepathCmd(params []string) error {
+	if len(params) != 1 {
+		return errors.New("set-earthporn-savepath needs one parameter")
+	}
+
+	savepath = params[0]
+	return nil
+}
+
+func (p *EarthPorn) save() error {
+	ext := extensions[p.mediatype]
+	pp := strings.Split(p.Permalink, "/")
+	threadid := pp[len(pp)-3]
+	title := strings.Replace(p.Title, "/", "-", -1)
+	f, err := os.Create(path.Join(savepath, threadid+" - "+title+"."+ext))
+	if err != nil {
+		return fmt.Errorf("Could not save earthporn: %s", err)
+	}
+	defer f.Close()
+
+	if _, err := f.Write(p.data); err != nil {
+		return fmt.Errorf("Could not save earthporn: %s", err)
+	}
+
+	p.Saved = true
+
+	return nil
 }
diff --git a/main.go b/main.go
index 3dcdc2e..d6d52b1 100644
--- a/main.go
+++ b/main.go
@@ -3,6 +3,7 @@ package main
 import (
 	"errors"
 	"flag"
+	"fmt"
 	"html/template"
 	"log"
 	"net/http"
@@ -92,6 +93,7 @@ func loadTemplate() {
 
 func initCmds() {
 	RegisterCommand("add-link", addLinkCmd)
+	RegisterCommand("set-earthporn-savepath", setSavepathCmd)
 	RegisterCommand("set-weather-place", setPlaceCmd)
 }
 
@@ -129,6 +131,7 @@ func main() {
 
 	http.HandleFunc("/", startpage)
 	http.HandleFunc("/bgimg", bgimg)
+	http.HandleFunc("/savebg", savebg)
 	log.Fatal(http.ListenAndServe(*laddr, nil))
 }
 
@@ -139,6 +142,7 @@ type TplData struct {
 }
 
 func startpage(rw http.ResponseWriter, req *http.Request) {
+	defer req.Body.Close()
 
 	if err := tpl.Execute(rw, &TplData{&porn, &weather, links}); err != nil {
 		log.Printf("Failed executing template: %s\n", err)
@@ -158,3 +162,19 @@ func bgimg(rw http.ResponseWriter, req *http.Request) {
 	}
 }
 
+func savebg(rw http.ResponseWriter, req *http.Request) {
+	defer req.Body.Close()
+
+	if len(porn.data) == 0 {
+		fmt.Fprintln(rw, "No earth porn available")
+		return
+	}
+
+	if err := (&porn).save(); err != nil {
+		log.Println(err)
+		fmt.Fprintln(rw, err)
+	}
+
+	rw.Header().Add("Location", "/")
+	rw.WriteHeader(http.StatusFound)
+}
diff --git a/template.html b/template.html
index d244b70..e23a7f3 100644
--- a/template.html
+++ b/template.html
@@ -76,6 +76,8 @@
 		</div>
 		<span id="earthporninfo">
 			<a href="http://reddit.com{{ .Porn.Permalink }}">{{ .Porn.Title }}</a>
+			|
+			{{ if .Porn.Saved }}saved{{ else }}<a href="/savebg">save</a>{{ end }}
 		</span>
 	</body>
 </html>
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