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  1. #include <regex>
  2. #include <string>
  3. #include <iostream>
  4.  
  5. std::string remove_password(std::string const& input)
  6. {
  7.     // I think this should work for skipping escaped quotes in the password.
  8.     // It works in javascript, but not in the standard library implementation.
  9.     // anyone have any ideas?
  10.     // (.*password\(("|'))(?:\\\2|[^\2])*?(\2.*)
  11. //    const char prog[] = R"__regex((.*password\(')([^']*)('.*)))__regex";
  12.     const char prog[] = R"((.*password\((["']))(?:\\\2|(?!\2)[^])*?(\2.*))";
  13.     auto reg = std::regex(prog, std::regex_constants::ECMAScript);
  14.     std::smatch match;
  15.     std::regex_match(input, match, reg);
  16.     // match[0] is the entire string
  17.     // match[1] is pre-password
  18.     // match[2] is the password
  19.     // match[3] is post-password
  20.     return match[1].str() + "********" + match[3].str();
  21. }
  22.  
  23. int main()
  24. {
  25.     using namespace std::literals;
  26.  
  27.     auto test_string = R"__(select * from run_on_hive(server('hdp230m2.labs.teradata.com'),username('vijay'),password('vijay'),dbname('default'),query('analyze table default.test01 compute statistics'));)__";
  28.  
  29.     std::cout << remove_password(test_string);
  30. }
Success #stdin #stdout 0s 4176KB
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stdin
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Standard input is empty
stdout
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select * from run_on_hive(server('hdp230m2.labs.teradata.com'),username('vijay'),password('********'),dbname('default'),query('analyze table default.test01 compute statistics'));
https://ideone.com/2Q8KbK
language:
C++14 (gcc 8.3)
created:
7 years ago
visibility:
public

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