5 * \defgroup CookieConversion Grep Cookies
6 * Utility functions which convert the HTTP cookie format we use to and
7 * from user/password/room strings.
9 * \ingroup WebcitHttpServer
15 #define TRUE 1 /**< for sure? */
16 #define FALSE 0 /**< nope. */
18 typedef unsigned char byte; /**< Byte type */
22 * Pack all session info into one easy-to-digest cookie. Healthy and delicious!
23 * \param cookie cookie string to create???
24 * \param session the session we want to convert into a cookie
25 * \param user the user to be associated with the cookie
26 * \param pass his passphrase
27 * \param room the room he wants to enter
29 void stuff_to_cookie(char *cookie, size_t clen, int session,
30 StrBuf *user, StrBuf *pass, StrBuf *room)
36 len = snprintf(buf, SIZ, "%d|%s|%s|%s|",
43 for (i=0; (i < len) && (i * 2 < clen); ++i) {
44 snprintf(&cookie[i*2], clen - i * 2, "%02X", buf[i]);
49 * \brief Convert unpacked hex string to an integer
50 * \param in Input hex string
51 * \param len the length of the string
52 * \return the corrosponding integer value
54 int xtoi(const char *in, size_t len)
58 while (!IsEmptyStr(in) && isxdigit((byte) *in) && (len-- > 0))
62 if (!isdigit((unsigned char)c)) {
63 c = tolower((unsigned char) c);
64 if ((c < 'a') || (c > 'f'))
75 * \brief Extract all that fun stuff out of the cookie.
76 * \param cookie the cookie string
77 * \param session the corrosponding session to return
78 * \param user the user string
79 * \param user_len the user stringlength
80 * \param pass the passphrase
81 * \param pass_len length of the passphrase string
82 * \param room the room he is in
83 * \param room_len the length of the room string
85 void cookie_to_stuff(StrBuf *cookie, int *session,
92 extract_token(t, buf, 0, '|', sizeof t);
93 lprintf(9, "SESS: %s\n", t);
94 extract_token(t, buf, 1, '|', sizeof t);
95 lprintf(9, "USER: %s\n", t);
96 extract_token(t, buf, 2, '|', sizeof t);
97 lprintf(9, "PASS: %s\n", t);
98 extract_token(t, buf, 3, '|', sizeof t);
99 lprintf(9, "ROOM: %s\n", t);
103 *session = StrBufExtract_int(cookie, 0, '|');
105 StrBufExtract_token(user, cookie, 1, '|');
107 StrBufExtract_token(pass, cookie, 2, '|');
109 StrBufExtract_token(room, cookie, 3, '|');