From 171789623b231c28f33c9b34be279b2b79792089 Mon Sep 17 00:00:00 2001
From: dec05eba <dec05eba@protonmail.com>
Date: Fri, 17 Sep 2021 13:50:16 +0200
Subject: Fix mangatown download

---
 plugins/mangatown.py | 64 ++++++++++++++++++++++++++++++++++------------------
 1 file changed, 42 insertions(+), 22 deletions(-)

diff --git a/plugins/mangatown.py b/plugins/mangatown.py
index 15f5681..0740925 100755
--- a/plugins/mangatown.py
+++ b/plugins/mangatown.py
@@ -83,6 +83,9 @@ def is_only_num(s):
     return True
 
 def download_chapter(url, download_dir):
+    if not url[-1] == '/':
+        url += '/'
+
     response = requests.get(url, headers=headers)
     response.raise_for_status()
 
@@ -95,35 +98,52 @@ def download_chapter(url, download_dir):
     for element in tree.xpath('//div[@class="page_select"]//option'):
         value = element.attrib.get("value", "")
         if "/manga/" in value and is_only_num(element.text):
-            num_pages += 1
+            num_pages = int(element.text)
 
-    num_pages /= 2
+    if num_pages == 0:
+        print("Failed to find number of pages for chapter")
+        os.remove(in_progress_filepath)
+        exit(2)
 
     img_number = 1
-    while True:
-        full_url = url + str(img_number) + ".html"
-        response = requests.get(full_url, headers=headers)
-        if not response.ok():
+    page_url = url
+    while img_number <= num_pages:
+        image_sources = tree.xpath("//img[@id='image']/@src")
+        if not image_sources or len(image_sources) == 0:
+            print("Failed to find images %d for chapter" % img_number)
+            os.remove(in_progress_filepath)
+            exit(2)
+
+        image_source = "https:" + image_sources[0]
+        ext = image_source[image_source.rfind("."):]
+        image_name = str(img_number) + ext
+        image_path = os.path.join(download_dir, image_name)
+        print("Downloading {} to {}".format(image_source, image_path))
+        file_size = download_file(image_source, image_path)
+        if file_size < 255:
+            print("resource temporary unavailable: %s" % image_source)
+            os.remove(in_progress_filepath)
+            exit(2)
+
+        img_number += 1
+        if img_number - 1 == num_pages:
             break
 
+        next_page_urls = tree.xpath("//a[@class='next_page']/@href")
+        if not next_page_urls or len(next_page_urls) == 0:
+            break
+
+        next_page_url = url + next_page_urls[0]
+        page_url = next_page_url
+        response = requests.get(page_url, headers=headers)
+        if not response.ok:
+            print("Failed to get next page for chapter")
+            os.remove(in_progress_filepath)
+            exit(2)
         tree = etree.HTML(response.text)
-        for image_source in tree.xpath('//div[@id="viewer"]//img/@src'):
-            if "/store/manga/" not in image_source:
-                continue
-            if len(image_source) >= 2:
-                image_source = image_source[2:]
-            image_source = "https://" + image_source
-            image_name = str(img_number) + ".jpg"
-            image_path = os.path.join(download_dir, image_name)
-            print("Downloading {} to {}".format(image_source, image_path))
-            if not download_file(image_source, image_path):
-                print("Failed to download image: %s" % image_source)
-                os.remove(in_progress_filepath)
-                exit(2)
-            img_number += 1
     
-    if img_number - 1 != num_pages:
-        print("Failed to find images for chapter. Expected %d images, got %d" % (img_number - 1, num_pages))
+    if img_number == 1 or (img_number - 1 != num_pages):
+        print("Failed to find images for chapter")
         os.remove(in_progress_filepath)
         exit(2)
 
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