refactor: readability uses snapshot instead of link

archivebox/core/models.py

@@ -2,6 +2,7 @@ __package__ = 'archivebox.core'
 
 import uuid
 from pathlib import Path
+from typing import Dict, Optional
 
 from django.db import models, transaction
 from django.utils.functional import cached_property
@@ -26,7 +27,6 @@ except AttributeError:
     import jsonfield
     JSONField = jsonfield.JSONField
 
-
 class Tag(models.Model):
     """
     Based on django-taggit model
@@ -162,6 +162,56 @@ class Snapshot(models.Model):
             return self.history['title'][-1].output.strip()
         return None
 
+    
+    @cached_property
+    def domain(self) -> str:
+        from ..util import domain
+        return domain(self.url)
+
+    @cached_property
+    def is_static(self) -> bool:
+        from ..util import is_static_file
+        return is_static_file(self.url)
+
+
+    def canonical_outputs(self) -> Dict[str, Optional[str]]:
+        """predict the expected output paths that should be present after archiving"""
+
+        from ..extractors.wget import wget_output_path
+        canonical = {
+            'index_path': 'index.html',
+            'favicon_path': 'favicon.ico',
+            'google_favicon_path': 'https://www.google.com/s2/favicons?domain={}'.format(self.domain),
+            'wget_path': wget_output_path(self),
+            'warc_path': 'warc',
+            'singlefile_path': 'singlefile.html',
+            'readability_path': 'readability/content.html',
+            'mercury_path': 'mercury/content.html',
+            'pdf_path': 'output.pdf',
+            'screenshot_path': 'screenshot.png',
+            'dom_path': 'output.html',
+            'archive_org_path': 'https://web.archive.org/web/{}'.format(self.base_url),
+            'git_path': 'git',
+            'media_path': 'media',
+        }
+        if self.is_static:
+            # static binary files like PDF and images are handled slightly differently.
+            # they're just downloaded once and aren't archived separately multiple times, 
+            # so the wget, screenshot, & pdf urls should all point to the same file
+
+            static_path = wget_output_path(self)
+            canonical.update({
+                'title': self.basename,
+                'wget_path': static_path,
+                'pdf_path': static_path,
+                'screenshot_path': static_path,
+                'dom_path': static_path,
+                'singlefile_path': static_path,
+                'readability_path': static_path,
+                'mercury_path': static_path,
+            })
+        return canonical
+
     def _asdict(self):
         return {
             "id": str(self.id),

archivebox/extractors/readability.py

@@ -6,6 +6,8 @@ from tempfile import NamedTemporaryFile
 from typing import Optional
 import json
 
+from django.db.models import Model
+
 from ..index.schema import Link, ArchiveResult, ArchiveError
 from ..system import run, atomic_write
 from ..util import (
@@ -24,12 +26,12 @@ from ..config import (
 from ..logging_util import TimedProgress
 
 @enforce_types
-def get_html(link: Link, path: Path) -> str:
+def get_html(snapshot: Model, path: Path) -> str:
     """
     Try to find wget, singlefile and then dom files.
     If none is found, download the url again.
     """
-    canonical = link.canonical_outputs()
+    canonical = snapshot.canonical_outputs()
     abs_path = path.absolute()
     sources = [canonical["singlefile_path"], canonical["wget_path"], canonical["dom_path"]]
     document = None
@@ -41,25 +43,25 @@ def get_html(link: Link, path: Path) -> str:
         except (FileNotFoundError, TypeError):
             continue
     if document is None:
-        return download_url(link.url)
+        return download_url(snapshot.url)
     else:
         return document
 
 @enforce_types
-def should_save_readability(link: Link, out_dir: Optional[str]=None) -> bool:
-    out_dir = out_dir or link.link_dir
-    if is_static_file(link.url):
+def should_save_readability(snapshot: Model, out_dir: Optional[str]=None) -> bool:
+    out_dir = out_dir or snapshot.link_dir
+    if is_static_file(snapshot.url):
         return False
 
-    output = Path(out_dir or link.link_dir) / 'readability'
+    output = Path(out_dir or snapshot.snapshot_dir) / 'readability'
     return SAVE_READABILITY and READABILITY_VERSION and (not output.exists())
 
 
 @enforce_types
-def save_readability(link: Link, out_dir: Optional[str]=None, timeout: int=TIMEOUT) -> ArchiveResult:
+def save_readability(snapshot: Model, out_dir: Optional[str]=None, timeout: int=TIMEOUT) -> ArchiveResult:
     """download reader friendly version using @mozilla/readability"""
 
-    out_dir = Path(out_dir or link.link_dir)
+    out_dir = Path(out_dir or snapshot.snapshot_dir)
     output_folder = out_dir.absolute() / "readability"
     output = str(output_folder)
 
@@ -69,12 +71,12 @@ def save_readability(link: Link, out_dir: Optional[str]=None, timeout: int=TIMEO
     # fake command to show the user so they have something to try debugging if get_html fails
     cmd = [
         CURL_BINARY,
-        link.url
+        snapshot.url
     ]
     readability_content = None
     timer = TimedProgress(timeout, prefix='      ')
     try:
-        document = get_html(link, out_dir)
+        document = get_html(snapshot, out_dir)
         temp_doc = NamedTemporaryFile(delete=False)
         temp_doc.write(document.encode("utf-8"))
         temp_doc.close()

archivebox/index/schema.py

@@ -408,41 +408,5 @@ class Link:
         return latest
 
 
-    def canonical_outputs(self) -> Dict[str, Optional[str]]:
-        """predict the expected output paths that should be present after archiving"""
-
-        from ..extractors.wget import wget_output_path
-        canonical = {
-            'index_path': 'index.html',
-            'favicon_path': 'favicon.ico',
-            'google_favicon_path': 'https://www.google.com/s2/favicons?domain={}'.format(self.domain),
-            'wget_path': wget_output_path(self),
-            'warc_path': 'warc',
-            'singlefile_path': 'singlefile.html',
-            'readability_path': 'readability/content.html',
-            'mercury_path': 'mercury/content.html',
-            'pdf_path': 'output.pdf',
-            'screenshot_path': 'screenshot.png',
-            'dom_path': 'output.html',
-            'archive_org_path': 'https://web.archive.org/web/{}'.format(self.base_url),
-            'git_path': 'git',
-            'media_path': 'media',
-        }
-        if self.is_static:
-            # static binary files like PDF and images are handled slightly differently.
-            # they're just downloaded once and aren't archived separately multiple times, 
-            # so the wget, screenshot, & pdf urls should all point to the same file
-
-            static_path = wget_output_path(self)
-            canonical.update({
-                'title': self.basename,
-                'wget_path': static_path,
-                'pdf_path': static_path,
-                'screenshot_path': static_path,
-                'dom_path': static_path,
-                'singlefile_path': static_path,
-                'readability_path': static_path,
-                'mercury_path': static_path,
-            })
-        return canonical
+