From 7a63e78baf3fe9f769ad4a0569baf8ca71363cfe Mon Sep 17 00:00:00 2001
From: Paul Buetow <paul@buetow.org>
Date: Fri, 8 Nov 2024 22:48:51 +0200
Subject: can download preview image for linkedin

---
 internal/platforms/linkedin/linkedin.go |  8 ++++++++
 internal/platforms/linkedin/preview.go  | 32 ++++++++++++++++++++++++++++++++
 2 files changed, 40 insertions(+)

(limited to 'internal/platforms/linkedin')

diff --git a/internal/platforms/linkedin/linkedin.go b/internal/platforms/linkedin/linkedin.go
index a8f7a13..1d57a9e 100644
--- a/internal/platforms/linkedin/linkedin.go
+++ b/internal/platforms/linkedin/linkedin.go
@@ -58,6 +58,14 @@ func post(ctx context.Context, args config.Args, sizeLimit int, en entry.Entry)
 		return err
 	}
 
+	var filePath string
+	if prev.imageURL != "" {
+		if filePath, err = prev.DownloadImage(args.CacheDir); err != nil {
+			return err
+		}
+		log.Println("Downloaded preview image to ", filePath)
+	}
+
 	question := fmt.Sprintf("Do you want to post this message to Linkedin (%v)?", prev)
 	if err := prompt.FileAction(question, content, en.Path); err != nil {
 		return err
diff --git a/internal/platforms/linkedin/preview.go b/internal/platforms/linkedin/preview.go
index 765a487..2e40798 100644
--- a/internal/platforms/linkedin/preview.go
+++ b/internal/platforms/linkedin/preview.go
@@ -8,7 +8,10 @@ import (
 	"log"
 	"net/http"
 	"net/url"
+	"os"
+	"path/filepath"
 
+	"codeberg.org/snonux/gos/internal/oi"
 	"golang.org/x/net/html"
 )
 
@@ -48,6 +51,35 @@ func (p preview) Empty() bool {
 	return p.url == ""
 }
 
+func (p preview) DownloadImage(destPath string) (string, error) {
+	if err := oi.EnsureDir(destPath); err != nil {
+		return "", err
+	}
+	resp, err := http.Get(p.imageURL)
+	if err != nil {
+		return "", err
+	}
+	defer resp.Body.Close()
+
+	if resp.StatusCode != http.StatusOK {
+		return "", fmt.Errorf("bad status while trying to download image: %s", resp.Status)
+	}
+
+	destFile := fmt.Sprintf("%s/%s", destPath, filepath.Base(p.imageURL))
+	out, err := os.Create(destFile)
+	if err != nil {
+		return destFile, fmt.Errorf("%s: %w", destFile, err)
+	}
+	defer out.Close()
+
+	_, err = io.Copy(out, resp.Body)
+	if err != nil {
+		return destFile, err
+	}
+
+	return destFile, nil
+}
+
 func findTitle(n *html.Node) (string, error) {
 	var title string
 	var traverse func(*html.Node)
-- 
cgit v1.2.3