robotstxt | repository contains Google 's robots.txt parser

 by   google C++ Version: Current License: Apache-2.0

kandi X-RAY | robotstxt Summary

kandi X-RAY | robotstxt Summary

robotstxt is a C++ library. robotstxt has no bugs, it has no vulnerabilities, it has a Permissive License and it has medium support. You can download it from GitHub.

The Robots Exclusion Protocol (REP) is a standard that enables website owners to control which URLs may be accessed by automated clients (i.e. crawlers) through a simple text file with a specific syntax. It's one of the basic building blocks of the internet as we know it and what allows search engines to operate. Because the REP was only a de-facto standard for the past 25 years, different implementers implement parsing of robots.txt slightly differently, leading to confusion. This project aims to fix that by releasing the parser that Google uses. The library is slightly modified (i.e. some internal headers and equivalent symbols) production code used by Googlebot, Google's crawler, to determine which URLs it may access based on rules provided by webmasters in robots.txt files. The library is released open-source to help developers build tools that better reflect Google's robots.txt parsing and matching. For webmasters, we included a small binary in the project that allows testing a single URL and user-agent against a robots.txt.
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            kandi-support Support

              robotstxt has a medium active ecosystem.
              It has 3278 star(s) with 218 fork(s). There are 85 watchers for this library.
              OutlinedDot
              It had no major release in the last 6 months.
              There are 7 open issues and 18 have been closed. On average issues are closed in 2 days. There are 2 open pull requests and 0 closed requests.
              It has a neutral sentiment in the developer community.
              The latest version of robotstxt is current.

            kandi-Quality Quality

              robotstxt has 0 bugs and 0 code smells.

            kandi-Security Security

              robotstxt has no vulnerabilities reported, and its dependent libraries have no vulnerabilities reported.
              robotstxt code analysis shows 0 unresolved vulnerabilities.
              There are 0 security hotspots that need review.

            kandi-License License

              robotstxt is licensed under the Apache-2.0 License. This license is Permissive.
              Permissive licenses have the least restrictions, and you can use them in most projects.

            kandi-Reuse Reuse

              robotstxt releases are not available. You will need to build from source code and install.
              Installation instructions, examples and code snippets are available.

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            robotstxt Key Features

            No Key Features are available at this moment for robotstxt.

            robotstxt Examples and Code Snippets

            No Code Snippets are available at this moment for robotstxt.

            Community Discussions

            QUESTION

            Scrapy script that was supposed to scrape pdf, doc files is not working properly
            Asked 2021-Dec-12 at 19:39

            I am trying to implement a similar script on my project following this blog post here: https://www.imagescape.com/blog/scraping-pdf-doc-and-docx-scrapy/

            The code of the spider class from the source:

            ...

            ANSWER

            Answered 2021-Dec-12 at 19:39

            This program was meant to be ran in linux, so there are a few steps you need to do in order for it to run in windows.

            1. Install the libraries.

            Installation in Anaconda:

            Source https://stackoverflow.com/questions/70325634

            QUESTION

            scrapy stops scraping elements that are addressed
            Asked 2021-Dec-04 at 11:41

            Here are my spider code and the log I got. The problem is the spider seems to stop scraping items addressed from somewhere in the midst of page 10 (while there are 352 pages to be scraped). When I check the XPath expressions of the rest of the elements, I find them the same in my browser.

            Here is my spider:

            ...

            ANSWER

            Answered 2021-Dec-04 at 11:41

            Your code is working fine as your expectation and the problem was in pagination portion and I've made the pagination in start_urls which type of pagination is always accurate and more than two times faster than if next page.

            Code

            Source https://stackoverflow.com/questions/70223918

            QUESTION

            Crawled 0 pages, scraped 0 items ERROR / webscraping / SELENIUM
            Asked 2021-Nov-03 at 19:42

            So I've tried several things to understand why my spider is failing, but haven't suceeded. I've been stuck for days now and can't afford to keep putting this off any longer. I just want to scrape the very first page, not doing pagination at this time. I'd highly appreciate your help :( This is my code:

            ...

            ANSWER

            Answered 2021-Nov-03 at 19:42

            I think your error is that you are trying to parse instead of starting the requests.

            Change:

            Source https://stackoverflow.com/questions/69830577

            QUESTION

            My Scrapy code is either filtering too much or scraping the same thing repeatedly
            Asked 2021-Sep-23 at 08:21

            I am trying to get scrapy-selenium to navigate a url while picking some data along the way. Problem is that it seems to be filtering out too much data. I am confident there is not that much data in there. My problem is I do not know where to apply dont_filter=True. This is my code

            ...

            ANSWER

            Answered 2021-Sep-11 at 09:59

            I run your code on a clean, virtual environment and it is working as intended. It doesn't give me a KeyError either but has some problems on various xpath paths. I'm not quite sure what you mean by filtering out too much data but your code hands me this output:

            You can fix the text errors (on product category, part number and description) by changing xpath variables like this:

            Source https://stackoverflow.com/questions/69068351

            QUESTION

            How to allow Googlebot to Crawl my React App?
            Asked 2021-Sep-23 at 05:59

            I have deployed a React-based Webb app in Azure App Services The website is working as it is supposed to, but according to https://search.google.com/test/mobile-friendly, Google is not able to reach it.

            Google's guess is that my Robot text is blocking it, but I don't think it is the case

            Below is my robot text

            ...

            ANSWER

            Answered 2021-Sep-23 at 05:59

            Where several user agents are recognized in the robots.txt file, Google will follow the most specific.

            If you want all of Google to be able to crawl your pages, you don't need a robots.txt file at all.

            If you want to block or allow all of Google's crawlers from accessing some of your content, you can do this by specifying Googlebot as the user agent.

            Source https://stackoverflow.com/questions/69286531

            QUESTION

            Stuck in a loop / bad Xpath when doing scraping of website
            Asked 2021-Aug-20 at 15:32

            I'm trying to scrape data from this website: https://aa-dc.org/meetings?tsml-day=any&tsml-type=IPM

            I have made the following script for the intial data:

            ...

            ANSWER

            Answered 2021-Aug-20 at 13:35

            To select element inside element you have to put a dot . in front of the XPath expression saying "from here".
            Otherwise it will bring you the first match of (//tr/td[@class='time']/span)[1]/text() on the entire page each time, as you see.
            Also, since you are iterating per each row it should be row.xpath..., not rows.xpath since rows is a list of elements while each row is an element.
            Also, to apply search on a web element according to XPath locator you should use find_element_by_xpath method, not xpath.

            Source https://stackoverflow.com/questions/68863084

            QUESTION

            Scrapy crawl not Crawling any url
            Asked 2021-Jun-21 at 13:16

            This is my first spider code. When I executed this code in my cmd. log shows that the urls are not even getting crawled and there were not DEBUG message in them. Can't be able to find any solution to this problem anywhere.. I am not able to understand what is wrong. can somebody help me with this.

            My code:

            ...

            ANSWER

            Answered 2021-Jun-21 at 13:16

            Note: As I do not have 50 reputation to comment that's why I am answering here.

            The problem is in function naming, your function should be def start_requests(self) instead of def start_request(self).

            The first requests to perform are obtained by calling the start_requests() method which (by default) generates Request for the URLs. But, in your case it never gets into that function due to which the requests are never made for those URLs.

            Your code after small change

            Source https://stackoverflow.com/questions/68049600

            QUESTION

            How to avoid "module not found" error while calling scrapy project from crontab?
            Asked 2021-Jun-07 at 15:35

            I am currently building a small test project to learn how to use crontab on Linux (Ubuntu 20.04.2 LTS).

            My crontab file looks like this:

            * * * * * sh /home/path_to .../crontab_start_spider.sh >> /home/path_to .../log_python_test.log 2>&1

            What I want crontab to do, is to use the shell file below to start a scrapy project. The output is stored in the file log_python_test.log.

            My shell file (numbers are only for reference in this question):

            ...

            ANSWER

            Answered 2021-Jun-07 at 15:35

            I found a solution to my problem. In fact, just as I suspected, there was a missing directory to my PYTHONPATH. It was the directory that contained the gtts package.

            Solution: If you have the same problem,

            1. Find the package

            I looked at that post

            1. Add it to sys.path (which will also add it to PYTHONPATH)

            Add this code at the top of your script (in my case, the pipelines.py):

            Source https://stackoverflow.com/questions/67841062

            QUESTION

            How can I get crawlspider to fetch these links?
            Asked 2021-May-26 at 10:50

            I am trying to fetch the links from the scorecard column on this page...

            https://stats.espncricinfo.com/uae/engine/records/team/match_results.html?class=3;id=1965;type=ground

            I am using a crawlspider, and trying to access the links with this xpath expression....

            ...

            ANSWER

            Answered 2021-May-26 at 10:50

            The key line in the log is this one

            Source https://stackoverflow.com/questions/67692941

            QUESTION

            How can I read all logs at middleware?
            Asked 2021-May-08 at 07:57

            I have about 100 spiders on a server. Every morning all spiders start scraping and writing all of the logs in their logs. Sometimes a couple of them gives me an error. When a spider gives me an error I have to go to the server and read from log file but I want to read the logs from the mail.

            I already set dynamic mail sender as follow:

            ...

            ANSWER

            Answered 2021-May-08 at 07:57

            I have implemented a similar method in my web scraping module.

            Below is the implementation you can look at and take reference from.

            Source https://stackoverflow.com/questions/67423699

            Community Discussions, Code Snippets contain sources that include Stack Exchange Network

            Vulnerabilities

            No vulnerabilities reported

            Install robotstxt

            We included with the library a small binary to test a local robots.txt against a user-agent and URL. Running the included binary requires:. Bazel is the official build system for the library, which is supported on most major platforms (Linux, Windows, MacOS, for example) and compilers.
            A compatible platform (e.g. Windows, macOS, Linux, etc.). Most platforms are fully supported.
            A compatible C++ compiler supporting at least C++11. Most major compilers are supported.
            Git for interacting with the source code repository. To install Git, consult the Set Up Git guide on GitHub.
            Although you are free to use your own build system, most of the documentation within this guide will assume you are using Bazel. To download and install Bazel (and any of its dependencies), consult the Bazel Installation Guide

            Support

            To learn more about this project:.
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            CLONE
          • HTTPS

            https://github.com/google/robotstxt.git

          • CLI

            gh repo clone google/robotstxt

          • sshUrl

            git@github.com:google/robotstxt.git

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