Sha256: 81c1b3926827b14ff7ec536af9c5cc94c241d943fda5a5b395aae5db34858fd4
Contents?: true
Size: 1.69 KB
Versions: 37
Compression:
Stored size: 1.69 KB
Contents
# encoding: utf-8 require 'one_apm/agent/database' require 'one_apm/agent/database/obfuscation_helpers' module OneApm module Agent module Database module PostgresExplainObfuscator extend self # Note that this regex can't be shared with the ones in the # Database::Obfuscator class because here we don't look for # backslash-escaped strings (and those regexes are backwards). QUOTED_STRINGS_REGEX = /'(?:[^']|'')*'|"(?:[^"]|"")*"/ LABEL_LINE_REGEX = /^([^:\n]*:\s+).*$/.freeze def obfuscate(explain) # First, we replace all single-quoted strings. # This is necessary in order to deal with multi-line string constants # embedded in the explain output. # # Note that we look for both single or double quotes but do not # replace double quotes in order to avoid accidentally latching onto a # single quote character embedded within a quoted identifier (such as # a table name). # # Note also that we make no special provisions for backslash-escaped # single quotes (\') because these are canonicalized to two single # quotes ('') in the explain output. explain.gsub!(QUOTED_STRINGS_REGEX) do |match| match.start_with?('"') ? match : '?' end # Now, mask anything after the first colon (:). # All parts of the query that can appear in the explain output are # prefixed with "<label>: ", so we want to preserve the label, but # remove the rest of the line. explain.gsub!(LABEL_LINE_REGEX, '\1?') explain end end end end end
Version data entries
37 entries across 37 versions & 1 rubygems