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.
61 62 63 |
# 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.
193 194 195 196 197 |
# 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.
78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 |
# 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" << "/dev/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.
298 299 300 301 302 303 304 305 306 307 308 309 310 311 312 313 314 315 316 317 318 319 320 321 322 323 324 325 326 327 328 329 330 331 332 333 334 335 336 337 338 339 340 341 342 343 344 345 346 347 348 349 350 351 352 353 354 355 356 357 358 359 360 361 362 363 364 365 366 367 368 369 370 371 372 373 374 375 376 377 378 379 380 381 382 383 384 385 386 387 388 389 390 391 392 393 394 395 396 397 398 399 400 401 402 403 404 405 406 407 408 409 410 411 412 413 414 415 416 417 418 419 420 421 422 423 424 425 426 |
# 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.
199 200 201 202 203 204 205 206 207 208 209 210 211 212 213 214 215 216 217 218 219 220 221 222 223 224 225 226 227 228 229 230 |
# 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.
51 52 53 54 55 |
# 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.
236 237 238 239 240 241 242 243 244 245 246 247 248 249 250 251 252 253 254 255 256 257 258 259 260 261 262 263 264 265 266 267 268 269 270 271 |
# 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 & wanted_headers).any? } # 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.
428 429 430 431 432 433 434 435 436 437 438 439 440 441 442 443 444 445 446 447 448 449 450 451 452 453 454 455 456 457 458 459 460 461 462 463 464 465 466 467 468 469 470 471 472 473 474 475 476 477 478 479 480 481 482 483 484 485 486 487 488 489 490 491 492 493 494 495 496 497 498 499 500 501 502 503 504 505 |
# 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.
232 233 234 |
# 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.
57 58 59 |
# 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.
605 606 607 608 609 610 611 612 613 614 615 616 |
# 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.
580 581 582 583 584 585 586 587 588 589 590 591 592 |
# 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.
512 513 514 515 516 517 |
# 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.
519 520 521 522 523 524 |
# 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.
507 508 509 510 |
# 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.
143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172 173 174 175 176 177 178 179 180 181 182 183 184 185 186 187 188 189 190 191 |
# 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.
526 527 528 |
# 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
.
543 544 545 546 547 548 549 550 551 552 553 554 555 556 557 558 559 560 561 562 |
# 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).
278 279 280 281 282 283 |
# 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).
290 291 292 293 294 295 296 |
# 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 |