XrdOucPrivateUtils.hh File Reference

#include <regex>
#include <string>
#include <vector>

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Functions
static bool	is_subdirectory (const std::string &dir, const std::string &subdir)
std::string	obfuscateAuth (const std::string &input)

Function Documentation

is_subdirectory()

static bool is_subdirectory ( const std::string &  dir, const std::string &  subdir  )

inlinestatic

PRIVATE HEADER for utility functions, implementation in XrdOucUtils.cc Returns true if path subdir is a subdirectory of dir.

Definition at line 33 of file XrdOucPrivateUtils.hh.

{
    if (subdir.size() < dir.size() || dir.empty())
      return false;
 
    if (subdir.compare(0, dir.size(), dir, 0, dir.size()) != 0)
      return false;
 
    return dir.size() == subdir.size() || subdir[dir.size()] == '/' || dir.back() == '/';
}

Referenced by XrdAccRules::apply(), and DoMv().

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obfuscateAuth()

std::string obfuscateAuth

(

const std::string &

input

)

Obfuscates strings containing "authz=value", "Authorization: value", "TransferHeaderAuthorization: value", "WhateverAuthorization: value" in a case insensitive way.

Parameters

input

the string to obfuscate

This function obfuscates away authz= cgi elements and/or HTTP authorization headers from URL or other log line strings which might contain them.

Parameters

input

the string to obfuscate

Returns

the string with token values obfuscated

Definition at line 1534 of file XrdOucUtils.cc.

{
  static const regex_t auth_regex = []() {
    constexpr char re[] =
      "(authz=|(transferheader)?(www-|proxy-)?auth(orization|enticate)[[:space:]]*:[[:space:]]*)"
      "(Bearer([[:space:]]|%20)?(token([[:space:]]|%20)?)?)?";
 
    regex_t regex;
 
    if (regcomp(&regex, re, REG_EXTENDED | REG_ICASE) != 0)
      throw std::runtime_error("Failed to compile regular expression");
 
    return regex;
  }();
 
  regmatch_t match;
  size_t offset = 0;
  std::string redacted;
  const char *const text = input.c_str();
 
  while (regexec(&auth_regex, text + offset, 1, &match, 0) == 0) {
    redacted.append(text + offset, match.rm_eo).append("REDACTED");
 
    offset += match.rm_eo;
 
    while (offset < input.size() && is_token_character(input[offset]))
      ++offset;
  }
 
  return redacted.append(text + offset);
}

References is_token_character().

Referenced by XrdPfc::Cache::Attach(), XrdPosixXrootd::Close(), XrdPosixFile::DelayedDestroy(), XrdPosixPrepIO::Disable(), XrdCl::URL::FromString(), XrdPssCks::Get(), XrdCl::URL::GetObfuscatedURL(), XrdCl::Utils::LogPropertyList(), main(), XrdPssSys::Mkdir(), XrdPssFile::Open(), XrdPssDir::Opendir(), XrdHttpProtocol::Process(), XrdHttpReq::ProcessHTTPReq(), XrdHttpReq::Redir(), XrdPssSys::Remdir(), XrdPssSys::Rename(), XrdCl::Message::SetDescription(), XrdPssSys::Stat(), XrdPssSys::Truncate(), and XrdPssSys::Unlink().

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