-rw-r--r-- | src/util.cc | 53 |
1 files changed, 53 insertions, 0 deletions
diff --git a/src/util.cc b/src/util.cc index 3166e62..48e486a 100644 --- a/src/util.cc +++ b/src/util.cc @@ -45,9 +45,62 @@ namespace kingate { // XXX: ensure it's hex? int danger = strtol(rv.substr(unscrewed+1,2).c_str(),NULL,16); rv.replace(unscrewed,3,1,danger); unscrewed++; } } return rv; } + + /* + * RFC 2616: + * + * separators = "(" | ")" | "<" | ">" | "@" + * | "," | ";" | ":" | "\" | <"> + * | "/" | "[" | "]" | "?" | "=" + * | "{" | "}" | SP | HT + */ + + /* + * RFC 2616: + * + * token = 1*<any CHAR except CTLs or separators> + */ + + static const char *quotible_chars = + "\001\002\003\004\005\006\007\010" + "\011\012\013\014\015\016\017\020" + "\021\022\023\024\025\026\027\030" + "\031\032\033\034\035\036\037\040" + "()<>@,;:\\\"/[]?={}" /* separator chars (except for SP and HT mentioned elsewhere */ + "\177" + ; + + /* + * RFC 2616: + * + * quoted-string = ( <"> *(qdtext | quoted-pair ) <"> ) + * qdtext = <any TEXT except <">> + * + * The backslash character ("\") MAY be used as a single-character + * quoting mechanism only within quoted-string and comment constructs. + * + * quoted-pair = "\" CHAR + */ + + string http_quoted_string(const string& str) { + string rv = str; + string::size_type sp=0; + for(string::size_type q=rv.find('"');(q=rv.find('"',q))!=string::npos;q+=2) + rv.insert(q,1,'\\'); + rv.insert(0,1,'"'); + rv += '"'; + return rv; + } + + string http_quote(const string& str) { + if(str.find_first_of(quotible_chars)==string::npos) + return str; + return http_quoted_string(str); + } + } |