License: GNU Affero General Public License v3.0
Usage:
python main.py [-j n] [-u url1 url2 ...]
where n is the number of threads you want to run in parallel. If you specify URLs using the -u option, then just those URLs will be crawled instead of retrieving batches from the server.
Clone this repo, install poetry if necessary, cd into the repo and type
poetry install
poetry shell
then the main.py command as documented above.
(crawler-script-py3.9) mwmbl@debian-pc:~/crawler-script$ python main.py
INFO:__main__:Got batch with 100 items
INFO:__main__:Crawled batch in 169.679112 seconds
INFO:__main__:Sending batch
INFO:__main__:Response status: 200, b'{"status":"ok","public_user_id":"4a22e1caa9461233746ac43c02bee5a44a109e846c41d65f9f9db104063bc81c","url":"https://f004.backblazeb2.com/file/mwmbl-crawl/1/v1/2023-01-16/1/4a22e1caa9461233746ac43c02bee5a44a109e846c41d65f9f9db104063bc81c/76989__e32bd971.json.gz"}'
INFO:__main__:Got batch with 100 items
INFO:__main__:Crawled batch in 179.940824 seconds
INFO:__main__:Sending batch
INFO:__main__:Response status: 200, b'{"status":"ok","public_user_id":"4a22e1caa9461233746ac43c02bee5a44a109e846c41d65f9f9db104063bc81c","url":"https://f004.backblazeb2.com/file/mwmbl-crawl/1/v1/2023-01-16/1/4a22e1caa9461233746ac43c02bee5a44a109e846c41d65f9f9db104063bc81c/77171__105d5086.json.gz"}'
INFO:__main__:Got batch with 100 items
ERROR:__main__:Unable to decode robots file
Traceback (most recent call last):
File "/srv/mwmbl/crawler-script/main.py", line 100, in robots_allowed
parse_robots.parse(content.decode('utf-8').splitlines())
UnicodeDecodeError: 'utf-8' codec can't decode byte 0xe9 in position 517: invalid continuation byte
I have ran into major IP address blocking because of the number of requests.
Recently, it happened with the fixed IP in my job and we received a question from our ISP.
Not like most people fall into this but may harm crawling even in dynamic IP addresses environments.
Maybe we should have an option to limit the number of requests per time to a specific website / domain / IP address.
Would be ideal that, given a domain, the crawler was capable of detecting the sitemap or accepting a sitemap as parameter.
I would think in the following workflow:
This would be both for main urls or secondary urls (there are sub-sitemaps and specially if you are using routes and behind reverse proxy server).
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