Module: Utils::Curl Private
- Extended by:
- SystemCommand::Mixin, T::Helpers
- Includes:
- SystemCommand::Mixin
- Included in:
- Cask::Audit, CurlDownloadStrategy, Homebrew::FormulaAuditor, Homebrew::Livecheck::Strategy, Homebrew::ResourceAuditor
- Defined in:
- utils/curl.rb
Overview
This module is part of a private API. This module may only be used in the Homebrew/brew repository. Third parties should avoid using this module if possible, as it may be removed or changed without warning.
Helper function for interacting with curl
.
Class Method Summary collapse
- .clear_path_cache ⇒ Object private
- .curl(*args, print_stdout: true, **options) ⇒ Object private
- .curl_args(*extra_args, connect_timeout: nil, max_time: nil, retries: Homebrew::EnvConfig.curl_retries.to_i, retry_max_time: nil, show_output: false, show_error: true, user_agent: nil, referer: nil) ⇒ Array<String> private
- .curl_check_http_content(url, url_type, specs: {}, user_agents: [:default], referer: nil, check_content: false, strict: false, use_homebrew_curl: false) ⇒ Object private
- .curl_download(*args, to: nil, try_partial: false, **options) ⇒ Object private
- .curl_executable(use_homebrew_curl: false) ⇒ Object private
- .curl_headers(*args, wanted_headers: [], **options) ⇒ Object private
- .curl_http_content_headers_and_checksum(url, specs: {}, hash_needed: false, use_homebrew_curl: false, user_agent: :default, referer: nil) ⇒ Object private
- .curl_output(*args, **options) ⇒ Object private
- .curl_path ⇒ Object private
-
.curl_response_follow_redirections(responses, base_url) ⇒ String
private
Returns the final URL by following location headers in cURL responses.
-
.curl_response_last_location(responses, absolutize: false, base_url: nil) ⇒ String?
private
Returns the URL from the last location header found in cURL responses, if any.
- .curl_supports_fail_with_body? ⇒ Boolean private
- .curl_supports_tls13? ⇒ Boolean private
- .curl_version ⇒ Object private
- .curl_with_workarounds(*args, secrets: nil, print_stdout: nil, print_stderr: nil, debug: nil, verbose: nil, env: {}, timeout: nil, use_homebrew_curl: false, **options) ⇒ Object private
- .http_status_ok?(status) ⇒ Boolean private
-
.parse_curl_output(output, max_iterations: 25) ⇒ Hash{Symbol => T.untyped}
private
Separates the output text from
curl
into an array of HTTP responses and the final response body (i.e. content). -
.url_protected_by_cloudflare?(response) ⇒ Boolean
private
Check if a URL is protected by CloudFlare (e.g. badlion.net and jaxx.io).
-
.url_protected_by_incapsula?(response) ⇒ Boolean
private
Check if a URL is protected by Incapsula (e.g. corsair.com).
Methods included from SystemCommand::Mixin
system_command, system_command!
Class Method Details
.clear_path_cache ⇒ Object
This method is part of a private API. This method may only be used in the Homebrew/brew repository. Third parties should avoid using this method if possible, as it may be removed or changed without warning.
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# File 'utils/curl.rb', line 61 def clear_path_cache @curl_path = nil end |
.curl(*args, print_stdout: true, **options) ⇒ Object
This method is part of a private API. This method may only be used in the Homebrew/brew repository. Third parties should avoid using this method if possible, as it may be removed or changed without warning.
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# File 'utils/curl.rb', line 193 def curl(*args, print_stdout: true, **) result = curl_with_workarounds(*args, print_stdout:, **) result.assert_success! result end |
.curl_args(*extra_args, connect_timeout: nil, max_time: nil, retries: Homebrew::EnvConfig.curl_retries.to_i, retry_max_time: nil, show_output: false, show_error: true, user_agent: nil, referer: nil) ⇒ Array<String>
This method is part of a private API. This method may only be used in the Homebrew/brew repository. Third parties should avoid using this method if possible, as it may be removed or changed without warning.
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# File 'utils/curl.rb', line 78 def curl_args( *extra_args, connect_timeout: nil, max_time: nil, retries: Homebrew::EnvConfig.curl_retries.to_i, retry_max_time: nil, show_output: false, show_error: true, user_agent: nil, referer: nil ) args = [] # do not load .curlrc unless requested (must be the first argument) curlrc = Homebrew::EnvConfig.curlrc if curlrc&.start_with?("/") # If the file exists, we still want to disable loading the default curlrc. args << "--disable" << "--config" << curlrc elsif curlrc # This matches legacy behavior: `HOMEBREW_CURLRC` was a bool, # omitting `--disable` when present. else args << "--disable" end # echo any cookies received on a redirect args << "--cookie" << File::NULL args << "--globoff" args << "--show-error" if show_error args << "--user-agent" << case user_agent when :browser, :fake HOMEBREW_USER_AGENT_FAKE_SAFARI when :default, nil HOMEBREW_USER_AGENT_CURL when String user_agent else raise TypeError, ":user_agent must be :browser/:fake, :default, or a String" end args << "--header" << "Accept-Language: en" if show_output != true args << "--fail" args << "--progress-bar" unless Context.current.verbose? args << "--verbose" if Homebrew::EnvConfig.curl_verbose? args << "--silent" if !$stdout.tty? || Context.current.quiet? end args << "--connect-timeout" << connect_timeout.round(3) if connect_timeout.present? args << "--max-time" << max_time.round(3) if max_time.present? # A non-positive integer (e.g. 0) or `nil` will omit this argument args << "--retry" << retries if retries&.positive? args << "--retry-max-time" << retry_max_time.round if retry_max_time.present? args << "--referer" << referer if referer.present? (args + extra_args).map(&:to_s) end |
.curl_check_http_content(url, url_type, specs: {}, user_agents: [:default], referer: nil, check_content: false, strict: false, use_homebrew_curl: false) ⇒ Object
This method is part of a private API. This method may only be used in the Homebrew/brew repository. Third parties should avoid using this method if possible, as it may be removed or changed without warning.
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# File 'utils/curl.rb', line 298 def curl_check_http_content(url, url_type, specs: {}, user_agents: [:default], referer: nil, check_content: false, strict: false, use_homebrew_curl: false) return unless url.start_with? "http" secure_url = url.sub(/\Ahttp:/, "https:") secure_details = T.let(nil, T.nilable(T::Hash[Symbol, T.untyped])) hash_needed = T.let(false, T::Boolean) if url != secure_url user_agents.each do |user_agent| secure_details = begin curl_http_content_headers_and_checksum( secure_url, specs:, hash_needed: true, use_homebrew_curl:, user_agent:, referer:, ) rescue Timeout::Error next end next unless http_status_ok?(secure_details[:status_code]) hash_needed = true user_agents = [user_agent] break end end details = T.let(nil, T.nilable(T::Hash[Symbol, T.untyped])) attempts = 0 user_agents.each do |user_agent| loop do details = curl_http_content_headers_and_checksum( url, specs:, hash_needed:, use_homebrew_curl:, user_agent:, referer:, ) # Retry on network issues break if details[:exit_status] != 52 && details[:exit_status] != 56 attempts += 1 break if attempts >= Homebrew::EnvConfig.curl_retries.to_i end break if http_status_ok?(details[:status_code]) end return "The #{url_type} #{url} is not reachable" unless details[:status_code] unless http_status_ok?(details[:status_code]) return if details[:responses].any? do |response| url_protected_by_cloudflare?(response) || url_protected_by_incapsula?(response) end # https://github.com/Homebrew/brew/issues/13789 # If the `:homepage` of a formula is private, it will fail an `audit` # since there's no way to specify a `strategy` with `using:` and # GitHub does not authorize access to the web UI using token # # Strategy: # If the `:homepage` 404s, it's a GitHub link and we have a token then # check the API (which does use tokens) for the repository repo_details = url.match(%r{https?://github\.com/(?<user>[^/]+)/(?<repo>[^/]+)/?.*}) check_github_api = url_type == SharedAudits::URL_TYPE_HOMEPAGE && details[:status_code] == "404" && repo_details && Homebrew::EnvConfig.github_api_token.present? unless check_github_api return "The #{url_type} #{url} is not reachable (HTTP status code #{details[:status_code]})" end "Unable to find homepage" if SharedAudits.github_repo_data(repo_details[:user], repo_details[:repo]).nil? end if url.start_with?("https://") && Homebrew::EnvConfig.no_insecure_redirect? && (details[:final_url].present? && !details[:final_url].start_with?("https://")) return "The #{url_type} #{url} redirects back to HTTP" end return unless secure_details return if !http_status_ok?(details[:status_code]) || !http_status_ok?(secure_details[:status_code]) etag_match = details[:etag] && details[:etag] == secure_details[:etag] content_length_match = details[:content_length] && details[:content_length] == secure_details[:content_length] file_match = details[:file_hash] == secure_details[:file_hash] http_with_https_available = url.start_with?("http://") && (secure_details[:final_url].present? && secure_details[:final_url].start_with?("https://")) if (etag_match || content_length_match || file_match) && http_with_https_available return "The #{url_type} #{url} should use HTTPS rather than HTTP" end return unless check_content no_protocol_file_contents = %r{https?:\\?/\\?/} http_content = details[:file]&.scrub&.gsub(no_protocol_file_contents, "/") https_content = secure_details[:file]&.scrub&.gsub(no_protocol_file_contents, "/") # Check for the same content after removing all protocols if (http_content && https_content) && (http_content == https_content) && http_with_https_available return "The #{url_type} #{url} should use HTTPS rather than HTTP" end return unless strict # Same size, different content after normalization # (typical causes: Generated ID, Timestamp, Unix time) if http_content.length == https_content.length return "The #{url_type} #{url} may be able to use HTTPS rather than HTTP. Please verify it in a browser." end lenratio = (https_content.length * 100 / http_content.length).to_i return unless (90..110).cover?(lenratio) "The #{url_type} #{url} may be able to use HTTPS rather than HTTP. Please verify it in a browser." end |
.curl_download(*args, to: nil, try_partial: false, **options) ⇒ Object
This method is part of a private API. This method may only be used in the Homebrew/brew repository. Third parties should avoid using this method if possible, as it may be removed or changed without warning.
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# File 'utils/curl.rb', line 199 def curl_download(*args, to: nil, try_partial: false, **) destination = Pathname(to) destination.dirname.mkpath args = ["--location", *args] if try_partial && destination.exist? headers = begin parsed_output = curl_headers(*args, **, wanted_headers: ["accept-ranges"]) parsed_output.fetch(:responses).last&.fetch(:headers) || {} rescue ErrorDuringExecution # Ignore errors here and let actual download fail instead. {} end # Any value for `Accept-Ranges` other than `none` indicates that the server # supports partial requests. Its absence indicates no support. supports_partial = headers.fetch("accept-ranges", "none") != "none" content_length = headers["content-length"]&.to_i if supports_partial # We've already downloaded all bytes. return if destination.size == content_length args = ["--continue-at", "-", *args] end end args = ["--remote-time", "--output", destination, *args] curl(*args, **) end |
.curl_executable(use_homebrew_curl: false) ⇒ Object
This method is part of a private API. This method may only be used in the Homebrew/brew repository. Third parties should avoid using this method if possible, as it may be removed or changed without warning.
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# File 'utils/curl.rb', line 51 def curl_executable(use_homebrew_curl: false) return HOMEBREW_BREWED_CURL_PATH if use_homebrew_curl @curl_executable ||= HOMEBREW_SHIMS_PATH/"shared/curl" end |
.curl_headers(*args, wanted_headers: [], **options) ⇒ Object
This method is part of a private API. This method may only be used in the Homebrew/brew repository. Third parties should avoid using this method if possible, as it may be removed or changed without warning.
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# File 'utils/curl.rb', line 236 def curl_headers(*args, wanted_headers: [], **) get_retry_args = ["--request", "GET"] # This is a workaround for https://github.com/Homebrew/brew/issues/18213 get_retry_args << "--http1.1" if curl_version >= Version.new("8.7") && curl_version < Version.new("8.10") [[], get_retry_args].each do |request_args| result = curl_output( "--fail", "--location", "--silent", "--head", *request_args, *args, ** ) # We still receive usable headers with certain non-successful exit # statuses, so we special case them below. if result.success? || [ CURL_WEIRD_SERVER_REPLY_EXIT_CODE, CURL_HTTP_RETURNED_ERROR_EXIT_CODE, CURL_RECV_ERROR_EXIT_CODE, ].include?(result.exit_status) parsed_output = parse_curl_output(result.stdout) if request_args.empty? # If we didn't get any wanted header yet, retry using `GET`. next if wanted_headers.any? && parsed_output.fetch(:responses).none? { |r| r.fetch(:headers).keys.intersect?(wanted_headers) } # Some CDNs respond with 400 codes for `HEAD` but resolve with `GET`. next if (400..499).cover?(parsed_output.fetch(:responses).last&.fetch(:status_code).to_i) end return parsed_output if result.success? || result.exit_status == CURL_WEIRD_SERVER_REPLY_EXIT_CODE end result.assert_success! end end |
.curl_http_content_headers_and_checksum(url, specs: {}, hash_needed: false, use_homebrew_curl: false, user_agent: :default, referer: nil) ⇒ Object
This method is part of a private API. This method may only be used in the Homebrew/brew repository. Third parties should avoid using this method if possible, as it may be removed or changed without warning.
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# File 'utils/curl.rb', line 428 def curl_http_content_headers_and_checksum( url, specs: {}, hash_needed: false, use_homebrew_curl: false, user_agent: :default, referer: nil ) file = Tempfile.new.tap(&:close) # Convert specs to options. This is mostly key-value options, # unless the value is a boolean in which case treat as as flag. specs = specs.flat_map do |option, argument| next [] if argument == false # No flag. args = ["--#{option.to_s.tr("_", "-")}"] args << argument if argument != true # It's a flag. args end max_time = hash_needed ? 600 : 25 output, _, status = curl_output( *specs, "--dump-header", "-", "--output", file.path, "--location", url, use_homebrew_curl:, connect_timeout: 15, max_time:, retry_max_time: max_time, user_agent:, referer: ) parsed_output = parse_curl_output(output) responses = parsed_output[:responses] final_url = curl_response_last_location(responses) headers = if responses.last.present? status_code = responses.last[:status_code] responses.last[:headers] else {} end etag = headers["etag"][ETAG_VALUE_REGEX, 1] if headers["etag"].present? content_length = headers["content-length"] if status.success? open_args = {} content_type = headers["content-type"] # Use the last `Content-Type` header if there is more than one instance # in the response content_type = content_type.last if content_type.is_a?(Array) # Try to get encoding from Content-Type header # TODO: add guessing encoding by <meta http-equiv="Content-Type" ...> tag if content_type && (match = content_type.match(/;\s*charset\s*=\s*([^\s]+)/)) && (charset = match[1]) begin open_args[:encoding] = Encoding.find(charset) rescue ArgumentError # Unknown charset in Content-Type header end end file_contents = File.read(T.must(file.path), **open_args) file_hash = Digest::SHA256.hexdigest(file_contents) if hash_needed end { url:, final_url:, exit_status: status.exitstatus, status_code:, headers:, etag:, content_length:, file: file_contents, file_hash:, responses:, } ensure T.must(file).unlink end |
.curl_output(*args, **options) ⇒ Object
This method is part of a private API. This method may only be used in the Homebrew/brew repository. Third parties should avoid using this method if possible, as it may be removed or changed without warning.
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# File 'utils/curl.rb', line 232 def curl_output(*args, **) curl_with_workarounds(*args, print_stderr: false, show_output: true, **) end |
.curl_path ⇒ Object
This method is part of a private API. This method may only be used in the Homebrew/brew repository. Third parties should avoid using this method if possible, as it may be removed or changed without warning.
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# File 'utils/curl.rb', line 57 def curl_path @curl_path ||= Utils.popen_read(curl_executable, "--homebrew=print-path").chomp.presence end |
.curl_response_follow_redirections(responses, base_url) ⇒ String
This method is part of a private API. This method may only be used in the Homebrew/brew repository. Third parties should avoid using this method if possible, as it may be removed or changed without warning.
Returns the final URL by following location headers in cURL responses.
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# File 'utils/curl.rb', line 605 def curl_response_follow_redirections(responses, base_url) responses.each do |response| next if response[:headers].blank? location = response[:headers]["location"] next if location.blank? base_url = URI.join(base_url, location).to_s end base_url end |
.curl_response_last_location(responses, absolutize: false, base_url: nil) ⇒ String?
This method is part of a private API. This method may only be used in the Homebrew/brew repository. Third parties should avoid using this method if possible, as it may be removed or changed without warning.
Returns the URL from the last location header found in cURL responses, if any.
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# File 'utils/curl.rb', line 580 def curl_response_last_location(responses, absolutize: false, base_url: nil) responses.reverse_each do |response| next if response[:headers].blank? location = response[:headers]["location"] next if location.blank? absolute_url = URI.join(base_url, location).to_s if absolutize && base_url.present? return absolute_url || location end nil end |
.curl_supports_fail_with_body? ⇒ Boolean
This method is part of a private API. This method may only be used in the Homebrew/brew repository. Third parties should avoid using this method if possible, as it may be removed or changed without warning.
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# File 'utils/curl.rb', line 512 def curl_supports_fail_with_body? @curl_supports_fail_with_body ||= Hash.new do |h, key| h[key] = curl_version >= Version.new("7.76.0") end @curl_supports_fail_with_body[curl_path] end |
.curl_supports_tls13? ⇒ Boolean
This method is part of a private API. This method may only be used in the Homebrew/brew repository. Third parties should avoid using this method if possible, as it may be removed or changed without warning.
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# File 'utils/curl.rb', line 519 def curl_supports_tls13? @curl_supports_tls13 ||= Hash.new do |h, key| h[key] = quiet_system(curl_executable, "--tlsv1.3", "--head", "https://brew.sh/") end @curl_supports_tls13[curl_path] end |
.curl_version ⇒ Object
This method is part of a private API. This method may only be used in the Homebrew/brew repository. Third parties should avoid using this method if possible, as it may be removed or changed without warning.
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# File 'utils/curl.rb', line 507 def curl_version @curl_version ||= {} @curl_version[curl_path] ||= Version.new(curl_output("-V").stdout[/curl (\d+(\.\d+)+)/, 1]) end |
.curl_with_workarounds(*args, secrets: nil, print_stdout: nil, print_stderr: nil, debug: nil, verbose: nil, env: {}, timeout: nil, use_homebrew_curl: false, **options) ⇒ Object
This method is part of a private API. This method may only be used in the Homebrew/brew repository. Third parties should avoid using this method if possible, as it may be removed or changed without warning.
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# File 'utils/curl.rb', line 143 def curl_with_workarounds( *args, secrets: nil, print_stdout: nil, print_stderr: nil, debug: nil, verbose: nil, env: {}, timeout: nil, use_homebrew_curl: false, ** ) end_time = Time.now + timeout if timeout = { secrets:, print_stdout:, print_stderr:, debug:, verbose:, }.compact result = system_command curl_executable(use_homebrew_curl:), args: curl_args(*args, **), env:, timeout: Utils::Timer.remaining(end_time), ** return result if result.success? || args.include?("--http1.1") raise Timeout::Error, result.stderr.lines.last.chomp if timeout && result.status.exitstatus == 28 # Error in the HTTP2 framing layer if result.exit_status == 16 return curl_with_workarounds( *args, "--http1.1", timeout: Utils::Timer.remaining(end_time), **, ** ) end # This is a workaround for https://github.com/curl/curl/issues/1618. if result.exit_status == 56 # Unexpected EOF out = curl_output("-V").stdout # If `curl` doesn't support HTTP2, the exception is unrelated to this bug. return result unless out.include?("HTTP2") # The bug is fixed in `curl` >= 7.60.0. curl_version = out[/curl (\d+(\.\d+)+)/, 1] return result if Gem::Version.new(curl_version) >= Gem::Version.new("7.60.0") return curl_with_workarounds(*args, "--http1.1", **, **) end result end |
.http_status_ok?(status) ⇒ Boolean
This method is part of a private API. This method may only be used in the Homebrew/brew repository. Third parties should avoid using this method if possible, as it may be removed or changed without warning.
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# File 'utils/curl.rb', line 526 def http_status_ok?(status) (100..299).cover?(status.to_i) end |
.parse_curl_output(output, max_iterations: 25) ⇒ Hash{Symbol => T.untyped}
This method is part of a private API. This method may only be used in the Homebrew/brew repository. Third parties should avoid using this method if possible, as it may be removed or changed without warning.
Separates the output text from curl
into an array of HTTP responses and
the final response body (i.e. content). Response hashes contain the
:status_code
, :status_text
and :headers
.
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# File 'utils/curl.rb', line 543 def parse_curl_output(output, max_iterations: 25) responses = [] iterations = 0 output = output.lstrip while output.match?(%r{\AHTTP/[\d.]+ \d+}) && output.include?(HTTP_RESPONSE_BODY_SEPARATOR) iterations += 1 raise "Too many redirects (max = #{max_iterations})" if iterations > max_iterations response_text, _, output = output.partition(HTTP_RESPONSE_BODY_SEPARATOR) output = output.lstrip next if response_text.blank? response_text.chomp! response = parse_curl_response(response_text) responses << response if response.present? end { responses:, body: output } end |
.url_protected_by_cloudflare?(response) ⇒ Boolean
This method is part of a private API. This method may only be used in the Homebrew/brew repository. Third parties should avoid using this method if possible, as it may be removed or changed without warning.
Check if a URL is protected by CloudFlare (e.g. badlion.net and jaxx.io).
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# File 'utils/curl.rb', line 278 def url_protected_by_cloudflare?(response) return false if response[:headers].blank? return false unless [403, 503].include?(response[:status_code].to_i) [*response[:headers]["server"]].any? { |server| server.match?(/^cloudflare/i) } end |
.url_protected_by_incapsula?(response) ⇒ Boolean
This method is part of a private API. This method may only be used in the Homebrew/brew repository. Third parties should avoid using this method if possible, as it may be removed or changed without warning.
Check if a URL is protected by Incapsula (e.g. corsair.com).
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# File 'utils/curl.rb', line 290 def url_protected_by_incapsula?(response) return false if response[:headers].blank? return false if response[:status_code].to_i != 403 = Array(response[:headers]["set-cookie"]) .compact.any? { || .match?(/^(visid_incap|incap_ses)_/i) } end |