- maybe check for html inside text for meta charset??? or check content-type -- why? why not?
# 1. Get raw binary data so Ruby doesn't guess the encoding yet
raw_body = response.body.b
# 2. Determine source encoding (Check Content-Type header first)
content_type = response['content-type'] || ''
source_encoding = 'ISO-8859-1' # Default fallback for legacy sites like RSSSF
if content_type.include?('charset=')
source_encoding = content_type.split('charset=').last.strip
elsif raw_body =~ /<meta.*charset=["']?([^"' >]+)/i
# Fallback: scan the raw HTML text for a meta charset tag
source_encoding = $1
end
# 3. Handle specific vendor encodings gracefully
source_encoding = 'CP1252' if source_encoding.upcase == 'ISO-8859-1'
- add custom headers
## add HTTP/1.1 200 OK too - why? why not?
x-url: # x-addr ++ x-fil
x-addr: # The original URL address part.
x-fil: # The original URL path part.
x-encoding: # original charset encoding, text always stored in utf-8!!
x-save: # The local filename, depending on user's "build structure" x-size: # The stored (either in cache, or in an external file) data size
preferences.
The One Exception: URL Fragments (#)The only part of a URL path structure that is not recorded in X-URL is the URL fragment (anything after a # symbol, such as https://example.com).
-
maybe later check if possible to convert to standard ISO WARC web logs? see
-
maybe track 404 NOT FOUND - why? why not?
Example 3: Error Page Tracking (404 Not Found)HTTrack captures error instances to avoid repeatedly querying missing structural files on subsequent syncs.httpX-URL: https://example.com
X-Status: 404
X-Mime: text/html
X-Size: 1204
try to learn from https://www.httrack.com/html/cache.html !!!
-
https://github.com/DannyBen/webcache - hassle-free caching for HTTP download
-
https://github.com/DannyBen/lightly - a file cache for performing heavy tasks, lightly
- https://github.com/gurgeous/sinew - a ruby DSL for structured web crawling, with a robust caching system
- Gopher ? => Webgo e.g. Webgo.get - Why? Why not?
well known crawlers (and user agent strings):
- Googlebot by Google
- Bingbot by Microsoft
- Slurp by Yahoo!
- ??
- more http://www.robotstxt.org/db.html
User-agent: *
Crawl-Delay: 20