Function getExpression

src/Server/HTTPHandlerRequestFilter.cpp:102–126

}

FilterExpression getExpression(const std::string & expression, HTTPRequestFilterMatchType match_type, bool ignore_query_string)
{
    if (match_type == HTTPRequestFilterMatchType::Prefix)
    {
        /// Match the value as a base path on a path-segment boundary (see checkExpression). A trailing '/'
        /// is stripped here, so "/api/v1/" and "/api/v1" behave the same.
        std::string_view value = expression;
        if (value.ends_with('/'))
            value.remove_suffix(1);
        return {.value = String{value}, .match_prefix = true, .ignore_query_string = ignore_query_string};
    }

    /// `Regexp` treats the whole value as a regular expression, while `Full` does so only when the value
    /// starts with the "regex:" marker.
    if (match_type == HTTPRequestFilterMatchType::Regexp)
        return {.value = expression, .regex = compileRegex(expression), .ignore_query_string = ignore_query_string};

    if (startsWith(expression, "regex:"))
    {
        auto regex = expression.substr(strlen("regex:"));
        return {.value = regex, .regex = compileRegex(regex), .ignore_query_string = ignore_query_string};
    }

    return {.value = expression, .ignore_query_string = ignore_query_string};
}

}