[tumblr] add 'hash' keyword

'hash' is the middle part of the filename in a tumblr image URL.
For example an image with '.../tumblr_p6tgemp1NZ1wgha4yo1_250.png' as
its URL would have 'p6tgemp1NZ1wgha4yo1' as hash.

CHANGELOG.md

@@ -1,5 +1,7 @@
 # Changelog
 
+## Unreleased
+
 ## 1.3.3 - 2018-04-06
 - Added extractors for
   - `nhentai` search results

gallery_dl/extractor/kissmanga.py

@@ -103,11 +103,11 @@ class KissmangaChapterExtractor(KissmangaBase, ChapterExtractor):
                r"/Manga/[^/?&#]+/[^/?&#]+\?id=(\d+)"]
     test = [
         ("http://kissmanga.com/Manga/Dropout/Ch-000---Oneshot-?id=145847", {
-            "url": "4136bcd1c6cecbca8cc2bc965d54f33ef0a97cc0",
+            "url": "46e63fd63e9e16f19bc1e6c7a45dc060815642fd",
             "keyword": "4a3a9341d453541de0dbfa24cd6b2e3ed39c0182",
         }),
         ("http://kissmanga.com/Manga/Urban-Tales/a?id=256717", {
-            "url": "de074848f6c1245204bb9214c12bcc3ecfd65019",
+            "url": "c26be8bf9c2abacee2076979d021634092cf38f1",
             "keyword": "ffc11b630da44fe67709ed0473756cf51b90a05c",
         }),
         ("http://kissmanga.com/Manga/Monster/Monster-79?id=7608", {

gallery_dl/extractor/tumblr.py

@@ -146,14 +146,20 @@ class TumblrExtractor(Extractor):
 
     @staticmethod
     def _prepare(url, post):
+        text.nameext_from_url(url, post)
         post["offset"] += 1
-        return Message.Url, url, text.nameext_from_url(url, post)
+        post["hash"] = post["name"].partition("_")[2]
+        return Message.Url, url, post
 
     @staticmethod
     def _prepare_image(url, post):
+        text.nameext_from_url(url, post)
         post["offset"] += 1
-        urls = _original_image(url)
-        return Message.Urllist, urls, text.nameext_from_url(url, post)
+
+        parts = post["name"].split("_")
+        post["hash"] = parts[1] if parts[1] != "inline" else parts[2]
+
+        return Message.Urllist, _original_image(url), post
 
 
 class TumblrUserExtractor(TumblrExtractor):

gallery_dl/version.py

@@ -6,4 +6,4 @@
 # it under the terms of the GNU General Public License version 2 as
 # published by the Free Software Foundation.
 
-__version__ = "1.3.3"
+__version__ = "1.3.4-dev"