Download a robots.txt file
Usage
get_robotstxt(
domain,
warn = getOption("robotstxt_warn", TRUE),
force = FALSE,
user_agent = utils::sessionInfo()$R.version$version.string,
ssl_verifypeer = c(1, 0),
encoding = "UTF-8",
verbose = FALSE,
rt_request_handler = robotstxt::rt_request_handler,
rt_robotstxt_http_getter = robotstxt::get_robotstxt_http_get,
on_server_error = on_server_error_default,
on_client_error = on_client_error_default,
on_not_found = on_not_found_default,
on_redirect = on_redirect_default,
on_domain_change = on_domain_change_default,
on_file_type_mismatch = on_file_type_mismatch_default,
on_suspect_content = on_suspect_content_default
)Arguments
- domain
domain from which to download robots.txt file
- warn
warn about being unable to download domain/robots.txt because of
- force
if TRUE instead of using possible cached results the function will re-download the robotstxt file HTTP response status 404. If this happens,
- user_agent
HTTP user-agent string to be used to retrieve robots.txt file from domain
- ssl_verifypeer
either 1 (default) or 0, if 0 it disables SSL peer verification, which might help with robots.txt file retrieval
- encoding
Encoding of the robots.txt file.
- verbose
make function print out more information
- rt_request_handler
handler function that handles request according to the event handlers specified
- rt_robotstxt_http_getter
function that executes HTTP request
- on_server_error
request state handler for any 5xx status
- on_client_error
request state handler for any 4xx HTTP status that is not 404
- on_not_found
request state handler for HTTP status 404
- on_redirect
request state handler for any 3xx HTTP status
- on_domain_change
request state handler for any 3xx HTTP status where domain did change as well
- on_file_type_mismatch
request state handler for content type other than 'text/plain'
- on_suspect_content
request state handler for content that seems to be something else than a robots.txt file (usually a JSON, XML or HTML)