[5e53c4a] | 1 | /* |
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| 2 | * aim_im.c |
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| 3 | * |
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| 4 | * The routines for sending/receiving Instant Messages. |
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| 5 | * |
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| 6 | * Note the term ICBM (Inter-Client Basic Message) which blankets |
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| 7 | * all types of genericly routed through-server messages. Within |
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| 8 | * the ICBM types (family 4), a channel is defined. Each channel |
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| 9 | * represents a different type of message. Channel 1 is used for |
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| 10 | * what would commonly be called an "instant message". Channel 2 |
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| 11 | * is used for negotiating "rendezvous". These transactions end in |
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| 12 | * something more complex happening, such as a chat invitation, or |
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| 13 | * a file transfer. |
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| 14 | * |
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| 15 | * In addition to the channel, every ICBM contains a cookie. For |
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| 16 | * standard IMs, these are only used for error messages. However, |
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| 17 | * the more complex rendezvous messages make suitably more complex |
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| 18 | * use of this field. |
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| 19 | * |
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| 20 | */ |
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| 21 | |
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| 22 | #define FAIM_INTERNAL |
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| 23 | #include <aim.h> |
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| 24 | |
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| 25 | /* |
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| 26 | * Takes a msghdr (and a length) and returns a client type |
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| 27 | * code. Note that this is *only a guess* and has a low likelihood |
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| 28 | * of actually being accurate. |
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| 29 | * |
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| 30 | * Its based on experimental data, with the help of Eric Warmenhoven |
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| 31 | * who seems to have collected a wide variety of different AIM clients. |
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| 32 | * |
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| 33 | * |
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| 34 | * Heres the current collection: |
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| 35 | * 0501 0003 0101 0101 01 AOL Mobile Communicator, WinAIM 1.0.414 |
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| 36 | * 0501 0003 0101 0201 01 WinAIM 2.0.847, 2.1.1187, 3.0.1464, |
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| 37 | * 4.3.2229, 4.4.2286 |
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| 38 | * 0501 0004 0101 0102 0101 WinAIM 4.1.2010, libfaim (right here) |
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| 39 | * 0501 0001 0101 01 AOL v6.0, CompuServe 2000 v6.0, any |
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| 40 | * TOC client |
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| 41 | * |
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| 42 | * Note that in this function, only the feature bytes are tested, since |
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| 43 | * the rest will always be the same. |
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| 44 | * |
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| 45 | */ |
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| 46 | faim_export fu16_t aim_fingerprintclient(fu8_t *msghdr, int len) |
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| 47 | { |
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| 48 | static const struct { |
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| 49 | fu16_t clientid; |
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| 50 | int len; |
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| 51 | fu8_t data[10]; |
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| 52 | } fingerprints[] = { |
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| 53 | /* AOL Mobile Communicator, WinAIM 1.0.414 */ |
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| 54 | { AIM_CLIENTTYPE_MC, |
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| 55 | 3, {0x01, 0x01, 0x01}}, |
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| 56 | |
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| 57 | /* WinAIM 2.0.847, 2.1.1187, 3.0.1464, 4.3.2229, 4.4.2286 */ |
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| 58 | { AIM_CLIENTTYPE_WINAIM, |
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| 59 | 3, {0x01, 0x01, 0x02}}, |
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| 60 | |
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| 61 | /* WinAIM 4.1.2010, libfaim */ |
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| 62 | { AIM_CLIENTTYPE_WINAIM41, |
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| 63 | 4, {0x01, 0x01, 0x01, 0x02}}, |
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| 64 | |
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| 65 | /* AOL v6.0, CompuServe 2000 v6.0, any TOC client */ |
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| 66 | { AIM_CLIENTTYPE_AOL_TOC, |
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| 67 | 1, {0x01}}, |
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| 68 | |
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| 69 | { 0, 0} |
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| 70 | }; |
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| 71 | int i; |
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| 72 | |
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| 73 | if (!msghdr || (len <= 0)) |
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| 74 | return AIM_CLIENTTYPE_UNKNOWN; |
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| 75 | |
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| 76 | for (i = 0; fingerprints[i].len; i++) { |
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| 77 | if (fingerprints[i].len != len) |
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| 78 | continue; |
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| 79 | if (memcmp(fingerprints[i].data, msghdr, fingerprints[i].len) == 0) |
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| 80 | return fingerprints[i].clientid; |
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| 81 | } |
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| 82 | |
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| 83 | return AIM_CLIENTTYPE_UNKNOWN; |
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| 84 | } |
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| 85 | |
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| 86 | /* This should be endian-safe now... but who knows... */ |
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| 87 | faim_export fu16_t aim_iconsum(const fu8_t *buf, int buflen) |
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| 88 | { |
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| 89 | fu32_t sum; |
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| 90 | int i; |
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| 91 | |
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| 92 | for (i = 0, sum = 0; i + 1 < buflen; i += 2) |
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| 93 | sum += (buf[i+1] << 8) + buf[i]; |
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| 94 | if (i < buflen) |
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| 95 | sum += buf[i]; |
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| 96 | |
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| 97 | sum = ((sum & 0xffff0000) >> 16) + (sum & 0x0000ffff); |
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| 98 | |
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| 99 | return (fu16_t)sum; |
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| 100 | } |
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| 101 | |
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| 102 | /* |
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| 103 | * Send an ICBM (instant message). |
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| 104 | * |
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| 105 | * |
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| 106 | * Possible flags: |
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| 107 | * AIM_IMFLAGS_AWAY -- Marks the message as an autoresponse |
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| 108 | * AIM_IMFLAGS_ACK -- Requests that the server send an ack |
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| 109 | * when the message is received (of type 0x0004/0x000c) |
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| 110 | * AIM_IMFLAGS_OFFLINE--If destination is offline, store it until they are |
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| 111 | * online (probably ICQ only). |
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| 112 | * AIM_IMFLAGS_UNICODE--Instead of ASCII7, the passed message is |
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| 113 | * made up of UNICODE duples. If you set |
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| 114 | * this, you'd better be damn sure you know |
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| 115 | * what you're doing. |
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| 116 | * AIM_IMFLAGS_ISO_8859_1 -- The message contains the ASCII8 subset |
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| 117 | * known as ISO-8859-1. |
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| 118 | * |
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| 119 | * Generally, you should use the lowest encoding possible to send |
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| 120 | * your message. If you only use basic punctuation and the generic |
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| 121 | * Latin alphabet, use ASCII7 (no flags). If you happen to use non-ASCII7 |
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| 122 | * characters, but they are all clearly defined in ISO-8859-1, then |
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| 123 | * use that. Keep in mind that not all characters in the PC ASCII8 |
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| 124 | * character set are defined in the ISO standard. For those cases (most |
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| 125 | * notably when the (r) symbol is used), you must use the full UNICODE |
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| 126 | * encoding for your message. In UNICODE mode, _all_ characters must |
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| 127 | * occupy 16bits, including ones that are not special. (Remember that |
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| 128 | * the first 128 UNICODE symbols are equivelent to ASCII7, however they |
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| 129 | * must be prefixed with a zero high order byte.) |
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| 130 | * |
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| 131 | * I strongly discourage the use of UNICODE mode, mainly because none |
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| 132 | * of the clients I use can parse those messages (and besides that, |
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| 133 | * wchars are difficult and non-portable to handle in most UNIX environments). |
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| 134 | * If you really need to include special characters, use the HTML UNICODE |
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| 135 | * entities. These are of the form ߪ where 2026 is the hex |
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| 136 | * representation of the UNICODE index (in this case, UNICODE |
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| 137 | * "Horizontal Ellipsis", or 133 in in ASCII8). |
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| 138 | * |
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| 139 | * Implementation note: Since this is one of the most-used functions |
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| 140 | * in all of libfaim, it is written with performance in mind. As such, |
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| 141 | * it is not as clear as it could be in respect to how this message is |
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| 142 | * supposed to be layed out. Most obviously, tlvlists should be used |
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| 143 | * instead of writing out the bytes manually. |
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| 144 | * |
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| 145 | * XXX more precise verification that we never send SNACs larger than 8192 |
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| 146 | * XXX check SNAC size for multipart |
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| 147 | * |
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| 148 | */ |
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| 149 | faim_export int aim_send_im_ext(aim_session_t *sess, struct aim_sendimext_args *args) |
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| 150 | { |
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| 151 | static const fu8_t deffeatures[] = { |
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| 152 | 0x01, 0x01, 0x01, 0x02 |
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| 153 | }; |
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| 154 | aim_conn_t *conn; |
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| 155 | int i, msgtlvlen; |
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| 156 | aim_frame_t *fr; |
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| 157 | aim_snacid_t snacid; |
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| 158 | |
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| 159 | if (!sess || !(conn = aim_conn_findbygroup(sess, 0x0004))) |
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| 160 | return -EINVAL; |
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| 161 | |
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| 162 | if (!args) |
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| 163 | return -EINVAL; |
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| 164 | |
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| 165 | if (args->flags & AIM_IMFLAGS_MULTIPART) { |
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| 166 | if (args->mpmsg->numparts <= 0) |
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| 167 | return -EINVAL; |
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| 168 | } else { |
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| 169 | if (!args->msg || (args->msglen <= 0)) |
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| 170 | return -EINVAL; |
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| 171 | |
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| 172 | if (args->msglen >= MAXMSGLEN) |
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| 173 | return -E2BIG; |
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| 174 | } |
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| 175 | |
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| 176 | /* Painfully calculate the size of the message TLV */ |
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| 177 | msgtlvlen = 1 + 1; /* 0501 */ |
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| 178 | |
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| 179 | if (args->flags & AIM_IMFLAGS_CUSTOMFEATURES) |
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| 180 | msgtlvlen += 2 + args->featureslen; |
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| 181 | else |
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| 182 | msgtlvlen += 2 + sizeof(deffeatures); |
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| 183 | |
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| 184 | if (args->flags & AIM_IMFLAGS_MULTIPART) { |
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| 185 | aim_mpmsg_section_t *sec; |
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| 186 | |
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| 187 | for (sec = args->mpmsg->parts; sec; sec = sec->next) { |
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| 188 | msgtlvlen += 2 /* 0101 */ + 2 /* block len */; |
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| 189 | msgtlvlen += 4 /* charset */ + sec->datalen; |
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| 190 | } |
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| 191 | |
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| 192 | } else { |
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| 193 | msgtlvlen += 2 /* 0101 */ + 2 /* block len */; |
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| 194 | msgtlvlen += 4 /* charset */ + args->msglen; |
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| 195 | } |
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| 196 | |
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| 197 | |
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| 198 | if (!(fr = aim_tx_new(sess, conn, AIM_FRAMETYPE_FLAP, 0x02, msgtlvlen+128))) |
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| 199 | return -ENOMEM; |
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| 200 | |
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| 201 | /* XXX should be optional */ |
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| 202 | snacid = aim_cachesnac(sess, 0x0004, 0x0006, 0x0000, args->destsn, strlen(args->destsn)+1); |
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| 203 | aim_putsnac(&fr->data, 0x0004, 0x0006, 0x0000, snacid); |
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| 204 | |
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| 205 | /* |
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| 206 | * Generate a random message cookie |
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| 207 | * |
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| 208 | * We could cache these like we do SNAC IDs. (In fact, it |
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| 209 | * might be a good idea.) In the message error functions, |
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| 210 | * the 8byte message cookie is returned as well as the |
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| 211 | * SNAC ID. |
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| 212 | * |
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| 213 | */ |
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| 214 | for (i = 0; i < 8; i++) |
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| 215 | aimbs_put8(&fr->data, (fu8_t) rand()); |
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| 216 | |
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| 217 | /* |
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| 218 | * Channel ID |
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| 219 | */ |
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| 220 | aimbs_put16(&fr->data, 0x0001); |
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| 221 | |
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| 222 | /* |
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| 223 | * Destination SN (prepended with byte length) |
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| 224 | */ |
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| 225 | aimbs_put8(&fr->data, strlen(args->destsn)); |
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| 226 | aimbs_putraw(&fr->data, args->destsn, strlen(args->destsn)); |
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| 227 | |
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| 228 | /* |
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| 229 | * Message TLV (type 2). |
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| 230 | */ |
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| 231 | aimbs_put16(&fr->data, 0x0002); |
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| 232 | aimbs_put16(&fr->data, msgtlvlen); |
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| 233 | |
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| 234 | /* |
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| 235 | * Features |
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| 236 | * |
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| 237 | */ |
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| 238 | aimbs_put8(&fr->data, 0x05); |
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| 239 | aimbs_put8(&fr->data, 0x01); |
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| 240 | |
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| 241 | if (args->flags & AIM_IMFLAGS_CUSTOMFEATURES) { |
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| 242 | aimbs_put16(&fr->data, args->featureslen); |
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| 243 | aimbs_putraw(&fr->data, args->features, args->featureslen); |
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| 244 | } else { |
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| 245 | aimbs_put16(&fr->data, sizeof(deffeatures)); |
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| 246 | aimbs_putraw(&fr->data, deffeatures, sizeof(deffeatures)); |
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| 247 | } |
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| 248 | |
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| 249 | if (args->flags & AIM_IMFLAGS_MULTIPART) { |
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| 250 | aim_mpmsg_section_t *sec; |
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| 251 | |
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| 252 | for (sec = args->mpmsg->parts; sec; sec = sec->next) { |
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| 253 | aimbs_put16(&fr->data, 0x0101); |
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| 254 | aimbs_put16(&fr->data, sec->datalen + 4); |
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| 255 | aimbs_put16(&fr->data, sec->charset); |
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| 256 | aimbs_put16(&fr->data, sec->charsubset); |
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| 257 | aimbs_putraw(&fr->data, sec->data, sec->datalen); |
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| 258 | } |
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| 259 | |
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| 260 | } else { |
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| 261 | |
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| 262 | aimbs_put16(&fr->data, 0x0101); |
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| 263 | |
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| 264 | /* |
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| 265 | * Message block length. |
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| 266 | */ |
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| 267 | aimbs_put16(&fr->data, args->msglen + 0x04); |
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| 268 | |
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| 269 | /* |
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| 270 | * Character set. |
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| 271 | */ |
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| 272 | if (args->flags & AIM_IMFLAGS_CUSTOMCHARSET) { |
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| 273 | |
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| 274 | aimbs_put16(&fr->data, args->charset); |
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| 275 | aimbs_put16(&fr->data, args->charsubset); |
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| 276 | |
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| 277 | } else { |
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| 278 | if (args->flags & AIM_IMFLAGS_UNICODE) |
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| 279 | aimbs_put16(&fr->data, 0x0002); |
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| 280 | else if (args->flags & AIM_IMFLAGS_ISO_8859_1) |
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| 281 | aimbs_put16(&fr->data, 0x0003); |
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| 282 | else |
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| 283 | aimbs_put16(&fr->data, 0x0000); |
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| 284 | |
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| 285 | aimbs_put16(&fr->data, 0x0000); |
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| 286 | } |
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| 287 | |
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| 288 | /* |
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| 289 | * Message. Not terminated. |
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| 290 | */ |
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| 291 | aimbs_putraw(&fr->data, args->msg, args->msglen); |
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| 292 | } |
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| 293 | |
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| 294 | /* |
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| 295 | * Set the Request Acknowledge flag. |
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| 296 | */ |
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| 297 | if (args->flags & AIM_IMFLAGS_ACK) { |
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| 298 | aimbs_put16(&fr->data, 0x0003); |
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| 299 | aimbs_put16(&fr->data, 0x0000); |
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| 300 | } |
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| 301 | |
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| 302 | /* |
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| 303 | * Set the Autoresponse flag. |
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| 304 | */ |
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| 305 | if (args->flags & AIM_IMFLAGS_AWAY) { |
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| 306 | aimbs_put16(&fr->data, 0x0004); |
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| 307 | aimbs_put16(&fr->data, 0x0000); |
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| 308 | } |
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| 309 | |
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| 310 | if (args->flags & AIM_IMFLAGS_OFFLINE) { |
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| 311 | aimbs_put16(&fr->data, 0x0006); |
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| 312 | aimbs_put16(&fr->data, 0x0000); |
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| 313 | } |
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| 314 | |
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| 315 | /* |
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| 316 | * Set the I HAVE A REALLY PURTY ICON flag. |
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| 317 | */ |
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| 318 | if (args->flags & AIM_IMFLAGS_HASICON) { |
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| 319 | aimbs_put16(&fr->data, 0x0008); |
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| 320 | aimbs_put16(&fr->data, 0x000c); |
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| 321 | aimbs_put32(&fr->data, args->iconlen); |
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| 322 | aimbs_put16(&fr->data, 0x0001); |
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| 323 | aimbs_put16(&fr->data, args->iconsum); |
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| 324 | aimbs_put32(&fr->data, args->iconstamp); |
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| 325 | } |
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| 326 | |
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| 327 | /* |
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| 328 | * Set the Buddy Icon Requested flag. |
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| 329 | */ |
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| 330 | if (args->flags & AIM_IMFLAGS_BUDDYREQ) { |
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| 331 | aimbs_put16(&fr->data, 0x0009); |
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| 332 | aimbs_put16(&fr->data, 0x0000); |
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| 333 | } |
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| 334 | |
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| 335 | aim_tx_enqueue(sess, fr); |
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| 336 | |
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| 337 | if (!(sess->flags & AIM_SESS_FLAGS_DONTTIMEOUTONICBM)) |
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| 338 | aim_cleansnacs(sess, 60); /* clean out SNACs over 60sec old */ |
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| 339 | |
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| 340 | return 0; |
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| 341 | } |
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| 342 | |
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| 343 | /* |
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| 344 | * Simple wrapper for aim_send_im_ext() |
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| 345 | * |
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| 346 | * You cannot use aim_send_im if you need the HASICON flag. You must |
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| 347 | * use aim_send_im_ext directly for that. |
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| 348 | * |
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| 349 | * aim_send_im also cannot be used if you require UNICODE messages, because |
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| 350 | * that requires an explicit message length. Use aim_send_im_ext(). |
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| 351 | * |
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| 352 | */ |
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| 353 | faim_export int aim_send_im(aim_session_t *sess, const char *destsn, fu16_t flags, const char *msg) |
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| 354 | { |
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| 355 | struct aim_sendimext_args args; |
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| 356 | |
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| 357 | args.destsn = destsn; |
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| 358 | args.flags = flags; |
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| 359 | args.msg = msg; |
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| 360 | args.msglen = strlen(msg); |
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| 361 | |
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| 362 | /* Make these don't get set by accident -- they need aim_send_im_ext */ |
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| 363 | args.flags &= ~(AIM_IMFLAGS_CUSTOMFEATURES | AIM_IMFLAGS_HASICON | AIM_IMFLAGS_MULTIPART); |
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| 364 | |
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| 365 | return aim_send_im_ext(sess, &args); |
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| 366 | } |
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| 367 | |
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| 368 | /* |
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| 369 | * This is also performance sensitive. (If you can believe it...) |
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| 370 | * |
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| 371 | */ |
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| 372 | faim_export int aim_send_icon(aim_session_t *sess, const char *sn, const fu8_t *icon, int iconlen, time_t stamp, fu16_t iconsum) |
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| 373 | { |
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| 374 | aim_conn_t *conn; |
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| 375 | int i; |
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| 376 | fu8_t ck[8]; |
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| 377 | aim_frame_t *fr; |
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| 378 | aim_snacid_t snacid; |
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| 379 | |
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| 380 | if (!sess || !(conn = aim_conn_findbygroup(sess, 0x0004))) |
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| 381 | return -EINVAL; |
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| 382 | |
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| 383 | if (!sn || !icon || (iconlen <= 0) || (iconlen >= MAXICONLEN)) |
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| 384 | return -EINVAL; |
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| 385 | |
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| 386 | for (i = 0; i < 8; i++) |
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| 387 | aimutil_put8(ck+i, (fu8_t) rand()); |
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| 388 | |
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| 389 | if (!(fr = aim_tx_new(sess, conn, AIM_FRAMETYPE_FLAP, 0x02, 10+8+2+1+strlen(sn)+2+2+2+8+16+2+2+2+2+2+2+2+4+4+4+iconlen+strlen(AIM_ICONIDENT)+2+2))) |
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| 390 | return -ENOMEM; |
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| 391 | |
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| 392 | snacid = aim_cachesnac(sess, 0x0004, 0x0006, 0x0000, NULL, 0); |
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| 393 | aim_putsnac(&fr->data, 0x0004, 0x0006, 0x0000, snacid); |
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| 394 | |
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| 395 | /* |
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| 396 | * Cookie |
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| 397 | */ |
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| 398 | aimbs_putraw(&fr->data, ck, 8); |
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| 399 | |
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| 400 | /* |
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| 401 | * Channel (2) |
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| 402 | */ |
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| 403 | aimbs_put16(&fr->data, 0x0002); |
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| 404 | |
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| 405 | /* |
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| 406 | * Dest sn |
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| 407 | */ |
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| 408 | aimbs_put8(&fr->data, strlen(sn)); |
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| 409 | aimbs_putraw(&fr->data, sn, strlen(sn)); |
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| 410 | |
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| 411 | /* |
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| 412 | * TLV t(0005) |
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| 413 | * |
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| 414 | * Encompasses everything below. |
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| 415 | */ |
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| 416 | aimbs_put16(&fr->data, 0x0005); |
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| 417 | aimbs_put16(&fr->data, 2+8+16+6+4+4+iconlen+4+4+4+strlen(AIM_ICONIDENT)); |
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| 418 | |
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| 419 | aimbs_put16(&fr->data, 0x0000); |
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| 420 | aimbs_putraw(&fr->data, ck, 8); |
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| 421 | aim_putcap(&fr->data, AIM_CAPS_BUDDYICON); |
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| 422 | |
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| 423 | /* TLV t(000a) */ |
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| 424 | aimbs_put16(&fr->data, 0x000a); |
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| 425 | aimbs_put16(&fr->data, 0x0002); |
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| 426 | aimbs_put16(&fr->data, 0x0001); |
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| 427 | |
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| 428 | /* TLV t(000f) */ |
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| 429 | aimbs_put16(&fr->data, 0x000f); |
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| 430 | aimbs_put16(&fr->data, 0x0000); |
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| 431 | |
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| 432 | /* TLV t(2711) */ |
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| 433 | aimbs_put16(&fr->data, 0x2711); |
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| 434 | aimbs_put16(&fr->data, 4+4+4+iconlen+strlen(AIM_ICONIDENT)); |
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| 435 | aimbs_put16(&fr->data, 0x0000); |
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| 436 | aimbs_put16(&fr->data, iconsum); |
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| 437 | aimbs_put32(&fr->data, iconlen); |
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| 438 | aimbs_put32(&fr->data, stamp); |
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| 439 | aimbs_putraw(&fr->data, icon, iconlen); |
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| 440 | aimbs_putraw(&fr->data, AIM_ICONIDENT, strlen(AIM_ICONIDENT)); |
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| 441 | |
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| 442 | /* TLV t(0003) */ |
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| 443 | aimbs_put16(&fr->data, 0x0003); |
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| 444 | aimbs_put16(&fr->data, 0x0000); |
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| 445 | |
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| 446 | aim_tx_enqueue(sess, fr); |
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| 447 | |
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| 448 | return 0; |
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| 449 | } |
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| 450 | |
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| 451 | /* |
---|
| 452 | * This only works for ICQ 2001b (thats 2001 not 2000). Better, only |
---|
| 453 | * send it to clients advertising the RTF capability. In fact, if you send |
---|
| 454 | * it to a client that doesn't support that capability, the server will gladly |
---|
| 455 | * bounce it back to you. |
---|
| 456 | * |
---|
| 457 | * You'd think this would be in icq.c, but, well, I'm trying to stick with |
---|
| 458 | * the one-group-per-file scheme as much as possible. This could easily |
---|
| 459 | * be an exception, since Rendezvous IMs are external of the Oscar core, |
---|
| 460 | * and therefore are undefined. Really I just need to think of a good way to |
---|
| 461 | * make an interface similar to what AOL actually uses. But I'm not using COM. |
---|
| 462 | * |
---|
| 463 | */ |
---|
| 464 | faim_export int aim_send_rtfmsg(aim_session_t *sess, struct aim_sendrtfmsg_args *args) |
---|
| 465 | { |
---|
| 466 | const char rtfcap[] = {"{97B12751-243C-4334-AD22-D6ABF73F1492}"}; /* AIM_CAPS_ICQRTF capability in string form */ |
---|
| 467 | aim_conn_t *conn; |
---|
| 468 | int i; |
---|
| 469 | fu8_t ck[8]; |
---|
| 470 | aim_frame_t *fr; |
---|
| 471 | aim_snacid_t snacid; |
---|
| 472 | int servdatalen; |
---|
| 473 | |
---|
| 474 | if (!sess || !(conn = aim_conn_findbygroup(sess, 0x0004))) |
---|
| 475 | return -EINVAL; |
---|
| 476 | |
---|
| 477 | if (!args || !args->destsn || !args->rtfmsg) |
---|
| 478 | return -EINVAL; |
---|
| 479 | |
---|
| 480 | servdatalen = 2+2+16+2+4+1+2 + 2+2+4+4+4 + 2+4+2+strlen(args->rtfmsg)+1 + 4+4+4+strlen(rtfcap)+1; |
---|
| 481 | |
---|
| 482 | for (i = 0; i < 8; i++) |
---|
| 483 | aimutil_put8(ck+i, (fu8_t) rand()); |
---|
| 484 | |
---|
| 485 | if (!(fr = aim_tx_new(sess, conn, AIM_FRAMETYPE_FLAP, 0x02, 10+128+servdatalen))) |
---|
| 486 | return -ENOMEM; |
---|
| 487 | |
---|
| 488 | snacid = aim_cachesnac(sess, 0x0004, 0x0006, 0x0000, NULL, 0); |
---|
| 489 | aim_putsnac(&fr->data, 0x0004, 0x0006, 0x0000, snacid); |
---|
| 490 | |
---|
| 491 | /* |
---|
| 492 | * Cookie |
---|
| 493 | */ |
---|
| 494 | aimbs_putraw(&fr->data, ck, 8); |
---|
| 495 | |
---|
| 496 | /* |
---|
| 497 | * Channel (2) |
---|
| 498 | */ |
---|
| 499 | aimbs_put16(&fr->data, 0x0002); |
---|
| 500 | |
---|
| 501 | /* |
---|
| 502 | * Dest sn |
---|
| 503 | */ |
---|
| 504 | aimbs_put8(&fr->data, strlen(args->destsn)); |
---|
| 505 | aimbs_putraw(&fr->data, args->destsn, strlen(args->destsn)); |
---|
| 506 | |
---|
| 507 | /* |
---|
| 508 | * TLV t(0005) |
---|
| 509 | * |
---|
| 510 | * Encompasses everything below. |
---|
| 511 | */ |
---|
| 512 | aimbs_put16(&fr->data, 0x0005); |
---|
| 513 | aimbs_put16(&fr->data, 2+8+16 + 2+2+2 + 2+2 + 2+2+servdatalen); |
---|
| 514 | |
---|
| 515 | aimbs_put16(&fr->data, 0x0000); |
---|
| 516 | aimbs_putraw(&fr->data, ck, 8); |
---|
| 517 | aim_putcap(&fr->data, AIM_CAPS_ICQSERVERRELAY); |
---|
| 518 | |
---|
| 519 | /* |
---|
| 520 | * t(000a) l(0002) v(0001) |
---|
| 521 | */ |
---|
| 522 | aimbs_put16(&fr->data, 0x000a); |
---|
| 523 | aimbs_put16(&fr->data, 0x0002); |
---|
| 524 | aimbs_put16(&fr->data, 0x0001); |
---|
| 525 | |
---|
| 526 | /* |
---|
| 527 | * t(000f) l(0000) v() |
---|
| 528 | */ |
---|
| 529 | aimbs_put16(&fr->data, 0x000f); |
---|
| 530 | aimbs_put16(&fr->data, 0x0000); |
---|
| 531 | |
---|
| 532 | /* |
---|
| 533 | * Service Data TLV |
---|
| 534 | */ |
---|
| 535 | aimbs_put16(&fr->data, 0x2711); |
---|
| 536 | aimbs_put16(&fr->data, servdatalen); |
---|
| 537 | |
---|
| 538 | aimbs_putle16(&fr->data, 11 + 16 /* 11 + (sizeof CLSID) */); |
---|
| 539 | aimbs_putle16(&fr->data, 9); |
---|
| 540 | aim_putcap(&fr->data, AIM_CAPS_EMPTY); |
---|
| 541 | aimbs_putle16(&fr->data, 0); |
---|
| 542 | aimbs_putle32(&fr->data, 0); |
---|
| 543 | aimbs_putle8(&fr->data, 0); |
---|
| 544 | aimbs_putle16(&fr->data, 0x03ea); /* trid1 */ |
---|
| 545 | |
---|
| 546 | aimbs_putle16(&fr->data, 14); |
---|
| 547 | aimbs_putle16(&fr->data, 0x03eb); /* trid2 */ |
---|
| 548 | aimbs_putle32(&fr->data, 0); |
---|
| 549 | aimbs_putle32(&fr->data, 0); |
---|
| 550 | aimbs_putle32(&fr->data, 0); |
---|
| 551 | |
---|
| 552 | aimbs_putle16(&fr->data, 0x0001); |
---|
| 553 | aimbs_putle32(&fr->data, 0); |
---|
| 554 | aimbs_putle16(&fr->data, strlen(args->rtfmsg)+1); |
---|
| 555 | aimbs_putraw(&fr->data, args->rtfmsg, strlen(args->rtfmsg)+1); |
---|
| 556 | |
---|
| 557 | aimbs_putle32(&fr->data, args->fgcolor); |
---|
| 558 | aimbs_putle32(&fr->data, args->bgcolor); |
---|
| 559 | aimbs_putle32(&fr->data, strlen(rtfcap)+1); |
---|
| 560 | aimbs_putraw(&fr->data, rtfcap, strlen(rtfcap)+1); |
---|
| 561 | |
---|
| 562 | aim_tx_enqueue(sess, fr); |
---|
| 563 | |
---|
| 564 | return 0; |
---|
| 565 | } |
---|
| 566 | |
---|
| 567 | faim_internal int aim_request_directim(aim_session_t *sess, const char *destsn, fu8_t *ip, fu16_t port, fu8_t *ckret) |
---|
| 568 | { |
---|
| 569 | aim_conn_t *conn; |
---|
| 570 | fu8_t ck[8]; |
---|
| 571 | aim_frame_t *fr; |
---|
| 572 | aim_snacid_t snacid; |
---|
| 573 | aim_tlvlist_t *tl = NULL, *itl = NULL; |
---|
| 574 | int hdrlen, i; |
---|
| 575 | fu8_t *hdr; |
---|
| 576 | aim_bstream_t hdrbs; |
---|
| 577 | |
---|
| 578 | if (!sess || !(conn = aim_conn_findbygroup(sess, 0x0004))) |
---|
| 579 | return -EINVAL; |
---|
| 580 | |
---|
| 581 | if (!(fr = aim_tx_new(sess, conn, AIM_FRAMETYPE_FLAP, 0x02, 256+strlen(destsn)))) |
---|
| 582 | return -ENOMEM; |
---|
| 583 | |
---|
| 584 | snacid = aim_cachesnac(sess, 0x0004, 0x0006, 0x0000, NULL, 0); |
---|
| 585 | aim_putsnac(&fr->data, 0x0004, 0x0006, 0x0000, snacid); |
---|
| 586 | |
---|
| 587 | /* |
---|
| 588 | * Generate a random message cookie |
---|
| 589 | * |
---|
| 590 | * This cookie needs to be alphanumeric and NULL-terminated to be |
---|
| 591 | * TOC-compatible. |
---|
| 592 | * |
---|
| 593 | * XXX have I mentioned these should be generated in msgcookie.c? |
---|
| 594 | * |
---|
| 595 | */ |
---|
| 596 | for (i = 0; i < 7; i++) |
---|
| 597 | ck[i] = 0x30 + ((fu8_t) rand() % 10); |
---|
| 598 | ck[7] = '\0'; |
---|
| 599 | |
---|
| 600 | if (ckret) |
---|
| 601 | memcpy(ckret, ck, 8); |
---|
| 602 | |
---|
| 603 | /* Cookie */ |
---|
| 604 | aimbs_putraw(&fr->data, ck, 8); |
---|
| 605 | |
---|
| 606 | /* Channel */ |
---|
| 607 | aimbs_put16(&fr->data, 0x0002); |
---|
| 608 | |
---|
| 609 | /* Destination SN */ |
---|
| 610 | aimbs_put8(&fr->data, strlen(destsn)); |
---|
| 611 | aimbs_putraw(&fr->data, destsn, strlen(destsn)); |
---|
| 612 | |
---|
| 613 | aim_addtlvtochain_noval(&tl, 0x0003); |
---|
| 614 | |
---|
| 615 | hdrlen = 2+8+16+6+8+6+4; |
---|
| 616 | hdr = malloc(hdrlen); |
---|
| 617 | aim_bstream_init(&hdrbs, hdr, hdrlen); |
---|
| 618 | |
---|
| 619 | aimbs_put16(&hdrbs, 0x0000); |
---|
| 620 | aimbs_putraw(&hdrbs, ck, 8); |
---|
| 621 | aim_putcap(&hdrbs, AIM_CAPS_IMIMAGE); |
---|
| 622 | |
---|
| 623 | aim_addtlvtochain16(&itl, 0x000a, 0x0001); |
---|
| 624 | aim_addtlvtochain_raw(&itl, 0x0003, 4, ip); |
---|
| 625 | aim_addtlvtochain16(&itl, 0x0005, port); |
---|
| 626 | aim_addtlvtochain_noval(&itl, 0x000f); |
---|
| 627 | |
---|
| 628 | aim_writetlvchain(&hdrbs, &itl); |
---|
| 629 | |
---|
| 630 | aim_addtlvtochain_raw(&tl, 0x0005, aim_bstream_curpos(&hdrbs), hdr); |
---|
| 631 | |
---|
| 632 | aim_writetlvchain(&fr->data, &tl); |
---|
| 633 | |
---|
| 634 | free(hdr); |
---|
| 635 | aim_freetlvchain(&itl); |
---|
| 636 | aim_freetlvchain(&tl); |
---|
| 637 | |
---|
| 638 | aim_tx_enqueue(sess, fr); |
---|
| 639 | |
---|
| 640 | return 0; |
---|
| 641 | } |
---|
| 642 | |
---|
| 643 | faim_internal int aim_request_sendfile(aim_session_t *sess, const char *sn, const char *filename, fu16_t numfiles, fu32_t totsize, fu8_t *ip, fu16_t port, fu8_t *ckret) |
---|
| 644 | { |
---|
| 645 | aim_conn_t *conn; |
---|
| 646 | int i; |
---|
| 647 | fu8_t ck[8]; |
---|
| 648 | aim_frame_t *fr; |
---|
| 649 | aim_snacid_t snacid; |
---|
| 650 | |
---|
| 651 | if (!sess || !(conn = aim_conn_findbygroup(sess, 0x0004))) |
---|
| 652 | return -EINVAL; |
---|
| 653 | |
---|
| 654 | if (!sn || !filename) |
---|
| 655 | return -EINVAL; |
---|
| 656 | |
---|
| 657 | if (!(fr = aim_tx_new(sess, conn, AIM_FRAMETYPE_FLAP, 0x02, 10+8+2+1+strlen(sn)+2+2+2+8+16+6+8+6+4+2+2+2+2+4+strlen(filename)+4))) |
---|
| 658 | return -ENOMEM; |
---|
| 659 | |
---|
| 660 | snacid = aim_cachesnac(sess, 0x0004, 0x0006, 0x0000, NULL, 0); |
---|
| 661 | aim_putsnac(&fr->data, 0x0004, 0x0006, 0x0000, snacid); |
---|
| 662 | |
---|
| 663 | for (i = 0; i < 7; i++) |
---|
| 664 | aimutil_put8(ck+i, 0x30 + ((fu8_t) rand() % 10)); |
---|
| 665 | ck[7] = '\0'; |
---|
| 666 | |
---|
| 667 | if (ckret) |
---|
| 668 | memcpy(ckret, ck, 8); |
---|
| 669 | |
---|
| 670 | /* |
---|
| 671 | * Cookie |
---|
| 672 | */ |
---|
| 673 | aimbs_putraw(&fr->data, ck, 8); |
---|
| 674 | |
---|
| 675 | /* |
---|
| 676 | * Channel (2) |
---|
| 677 | */ |
---|
| 678 | aimbs_put16(&fr->data, 0x0002); |
---|
| 679 | |
---|
| 680 | /* |
---|
| 681 | * Dest sn |
---|
| 682 | */ |
---|
| 683 | aimbs_put8(&fr->data, strlen(sn)); |
---|
| 684 | aimbs_putraw(&fr->data, sn, strlen(sn)); |
---|
| 685 | |
---|
| 686 | /* |
---|
| 687 | * TLV t(0005) |
---|
| 688 | * |
---|
| 689 | * Encompasses everything below. Gee. |
---|
| 690 | */ |
---|
| 691 | aimbs_put16(&fr->data, 0x0005); |
---|
| 692 | aimbs_put16(&fr->data, 2+8+16+6+8+6+4+2+2+2+2+4+strlen(filename)+4); |
---|
| 693 | |
---|
| 694 | aimbs_put16(&fr->data, 0x0000); |
---|
| 695 | aimbs_putraw(&fr->data, ck, 8); |
---|
| 696 | aim_putcap(&fr->data, AIM_CAPS_SENDFILE); |
---|
| 697 | |
---|
| 698 | /* TLV t(000a) */ |
---|
| 699 | aimbs_put16(&fr->data, 0x000a); |
---|
| 700 | aimbs_put16(&fr->data, 0x0002); |
---|
| 701 | aimbs_put16(&fr->data, 0x0001); |
---|
| 702 | |
---|
| 703 | /* TLV t(0003) (IP) */ |
---|
| 704 | aimbs_put16(&fr->data, 0x0003); |
---|
| 705 | aimbs_put16(&fr->data, 0x0004); |
---|
| 706 | aimbs_putraw(&fr->data, ip, 4); |
---|
| 707 | |
---|
| 708 | /* TLV t(0005) (port) */ |
---|
| 709 | aimbs_put16(&fr->data, 0x0005); |
---|
| 710 | aimbs_put16(&fr->data, 0x0002); |
---|
| 711 | aimbs_put16(&fr->data, port); |
---|
| 712 | |
---|
| 713 | /* TLV t(000f) */ |
---|
| 714 | aimbs_put16(&fr->data, 0x000f); |
---|
| 715 | aimbs_put16(&fr->data, 0x0000); |
---|
| 716 | |
---|
| 717 | /* TLV t(2711) */ |
---|
| 718 | aimbs_put16(&fr->data, 0x2711); |
---|
| 719 | aimbs_put16(&fr->data, 2+2+4+strlen(filename)+4); |
---|
| 720 | |
---|
| 721 | /* ? */ |
---|
| 722 | aimbs_put16(&fr->data, 0x0001); |
---|
| 723 | aimbs_put16(&fr->data, numfiles); |
---|
| 724 | aimbs_put32(&fr->data, totsize); |
---|
| 725 | aimbs_putraw(&fr->data, filename, strlen(filename)); |
---|
| 726 | |
---|
| 727 | /* ? */ |
---|
| 728 | aimbs_put32(&fr->data, 0x00000000); |
---|
| 729 | |
---|
| 730 | aim_tx_enqueue(sess, fr); |
---|
| 731 | |
---|
| 732 | return 0; |
---|
| 733 | } |
---|
| 734 | |
---|
| 735 | static int outgoingim(aim_session_t *sess, aim_module_t *mod, aim_frame_t *rx, aim_modsnac_t *snac, aim_bstream_t *bs) |
---|
| 736 | { |
---|
| 737 | int i, ret = 0; |
---|
| 738 | aim_rxcallback_t userfunc; |
---|
| 739 | fu8_t cookie[8]; |
---|
| 740 | fu16_t channel; |
---|
| 741 | aim_tlvlist_t *tlvlist; |
---|
| 742 | char *sn; |
---|
| 743 | int snlen; |
---|
| 744 | fu16_t icbmflags = 0; |
---|
| 745 | fu8_t flag1 = 0, flag2 = 0; |
---|
| 746 | fu8_t *msg = NULL; |
---|
| 747 | aim_tlv_t *msgblock; |
---|
| 748 | |
---|
| 749 | /* ICBM Cookie. */ |
---|
| 750 | for (i = 0; i < 8; i++) |
---|
| 751 | cookie[i] = aimbs_get8(bs); |
---|
| 752 | |
---|
| 753 | /* Channel ID */ |
---|
| 754 | channel = aimbs_get16(bs); |
---|
| 755 | |
---|
| 756 | if (channel != 0x01) { |
---|
| 757 | faimdprintf(sess, 0, "icbm: ICBM recieved on unsupported channel. Ignoring. (chan = %04x)\n", channel); |
---|
| 758 | return 0; |
---|
| 759 | } |
---|
| 760 | |
---|
| 761 | snlen = aimbs_get8(bs); |
---|
| 762 | sn = aimbs_getstr(bs, snlen); |
---|
| 763 | |
---|
| 764 | tlvlist = aim_readtlvchain(bs); |
---|
| 765 | |
---|
| 766 | if (aim_gettlv(tlvlist, 0x0003, 1)) |
---|
| 767 | icbmflags |= AIM_IMFLAGS_ACK; |
---|
| 768 | if (aim_gettlv(tlvlist, 0x0004, 1)) |
---|
| 769 | icbmflags |= AIM_IMFLAGS_AWAY; |
---|
| 770 | |
---|
| 771 | if ((msgblock = aim_gettlv(tlvlist, 0x0002, 1))) { |
---|
| 772 | aim_bstream_t mbs; |
---|
| 773 | int featurelen, msglen; |
---|
| 774 | |
---|
| 775 | aim_bstream_init(&mbs, msgblock->value, msgblock->length); |
---|
| 776 | |
---|
| 777 | aimbs_get8(&mbs); |
---|
| 778 | aimbs_get8(&mbs); |
---|
| 779 | for (featurelen = aimbs_get16(&mbs); featurelen; featurelen--) |
---|
| 780 | aimbs_get8(&mbs); |
---|
| 781 | aimbs_get8(&mbs); |
---|
| 782 | aimbs_get8(&mbs); |
---|
| 783 | |
---|
| 784 | msglen = aimbs_get16(&mbs) - 4; /* final block length */ |
---|
| 785 | |
---|
| 786 | flag1 = aimbs_get16(&mbs); |
---|
| 787 | flag2 = aimbs_get16(&mbs); |
---|
| 788 | |
---|
| 789 | msg = aimbs_getstr(&mbs, msglen); |
---|
| 790 | } |
---|
| 791 | |
---|
| 792 | if ((userfunc = aim_callhandler(sess, rx->conn, snac->family, snac->subtype))) |
---|
| 793 | ret = userfunc(sess, rx, channel, sn, msg, icbmflags, flag1, flag2); |
---|
| 794 | |
---|
| 795 | free(sn); |
---|
| 796 | aim_freetlvchain(&tlvlist); |
---|
| 797 | |
---|
| 798 | return ret; |
---|
| 799 | } |
---|
| 800 | |
---|
| 801 | /* |
---|
| 802 | * Ahh, the joys of nearly ridiculous over-engineering. |
---|
| 803 | * |
---|
| 804 | * Not only do AIM ICBM's support multiple channels. Not only do they |
---|
| 805 | * support multiple character sets. But they support multiple character |
---|
| 806 | * sets / encodings within the same ICBM. |
---|
| 807 | * |
---|
| 808 | * These multipart messages allow for complex space savings techniques, which |
---|
| 809 | * seem utterly unnecessary by today's standards. In fact, there is only |
---|
| 810 | * one client still in popular use that still uses this method: AOL for the |
---|
| 811 | * Macintosh, Version 5.0. Obscure, yes, I know. |
---|
| 812 | * |
---|
| 813 | * In modern (non-"legacy") clients, if the user tries to send a character |
---|
| 814 | * that is not ISO-8859-1 or ASCII, the client will send the entire message |
---|
| 815 | * as UNICODE, meaning that every character in the message will occupy the |
---|
| 816 | * full 16 bit UNICODE field, even if the high order byte would be zero. |
---|
| 817 | * Multipart messages prevent this wasted space by allowing the client to |
---|
| 818 | * only send the characters in UNICODE that need to be sent that way, and |
---|
| 819 | * the rest of the message can be sent in whatever the native character |
---|
| 820 | * set is (probably ASCII). |
---|
| 821 | * |
---|
| 822 | * An important note is that sections will be displayed in the order that |
---|
| 823 | * they appear in the ICBM. There is no facility for merging or rearranging |
---|
| 824 | * sections at run time. So if you have, say, ASCII then UNICODE then ASCII, |
---|
| 825 | * you must supply two ASCII sections with a UNICODE in the middle, and incur |
---|
| 826 | * the associated overhead. |
---|
| 827 | * |
---|
| 828 | * Normally I would have laughed and given a firm 'no' to supporting this |
---|
| 829 | * seldom-used feature, but something is attracting me to it. In the future, |
---|
| 830 | * it may be possible to abuse this to send mixed-media messages to other |
---|
| 831 | * open source clients (like encryption or something) -- see faimtest for |
---|
| 832 | * examples of how to do this. |
---|
| 833 | * |
---|
| 834 | * I would definitly recommend avoiding this feature unless you really |
---|
| 835 | * know what you are doing, and/or you have something neat to do with it. |
---|
| 836 | * |
---|
| 837 | */ |
---|
| 838 | faim_export int aim_mpmsg_init(aim_session_t *sess, aim_mpmsg_t *mpm) |
---|
| 839 | { |
---|
| 840 | |
---|
| 841 | memset(mpm, 0, sizeof(aim_mpmsg_t)); |
---|
| 842 | |
---|
| 843 | return 0; |
---|
| 844 | } |
---|
| 845 | |
---|
| 846 | static int mpmsg_addsection(aim_session_t *sess, aim_mpmsg_t *mpm, fu16_t charset, fu16_t charsubset, fu8_t *data, fu16_t datalen) |
---|
| 847 | { |
---|
| 848 | aim_mpmsg_section_t *sec; |
---|
| 849 | |
---|
| 850 | if (!(sec = malloc(sizeof(aim_mpmsg_section_t)))) |
---|
| 851 | return -1; |
---|
| 852 | |
---|
| 853 | sec->charset = charset; |
---|
| 854 | sec->charsubset = charsubset; |
---|
| 855 | sec->data = data; |
---|
| 856 | sec->datalen = datalen; |
---|
| 857 | sec->next = NULL; |
---|
| 858 | |
---|
| 859 | if (!mpm->parts) |
---|
| 860 | mpm->parts = sec; |
---|
| 861 | else { |
---|
| 862 | aim_mpmsg_section_t *cur; |
---|
| 863 | |
---|
| 864 | for (cur = mpm->parts; cur->next; cur = cur->next) |
---|
| 865 | ; |
---|
| 866 | cur->next = sec; |
---|
| 867 | } |
---|
| 868 | |
---|
| 869 | mpm->numparts++; |
---|
| 870 | |
---|
| 871 | return 0; |
---|
| 872 | } |
---|
| 873 | |
---|
| 874 | faim_export int aim_mpmsg_addraw(aim_session_t *sess, aim_mpmsg_t *mpm, fu16_t charset, fu16_t charsubset, const fu8_t *data, fu16_t datalen) |
---|
| 875 | { |
---|
| 876 | fu8_t *dup; |
---|
| 877 | |
---|
| 878 | if (!(dup = malloc(datalen))) |
---|
| 879 | return -1; |
---|
| 880 | memcpy(dup, data, datalen); |
---|
| 881 | |
---|
| 882 | if (mpmsg_addsection(sess, mpm, charset, charsubset, dup, datalen) == -1) { |
---|
| 883 | free(dup); |
---|
| 884 | return -1; |
---|
| 885 | } |
---|
| 886 | |
---|
| 887 | return 0; |
---|
| 888 | } |
---|
| 889 | |
---|
| 890 | /* XXX should provide a way of saying ISO-8859-1 specifically */ |
---|
| 891 | faim_export int aim_mpmsg_addascii(aim_session_t *sess, aim_mpmsg_t *mpm, const char *ascii) |
---|
| 892 | { |
---|
| 893 | fu8_t *dup; |
---|
| 894 | |
---|
| 895 | if (!(dup = strdup(ascii))) |
---|
| 896 | return -1; |
---|
| 897 | |
---|
| 898 | if (mpmsg_addsection(sess, mpm, 0x0000, 0x0000, dup, strlen(ascii)) == -1) { |
---|
| 899 | free(dup); |
---|
| 900 | return -1; |
---|
| 901 | } |
---|
| 902 | |
---|
| 903 | return 0; |
---|
| 904 | } |
---|
| 905 | |
---|
| 906 | faim_export int aim_mpmsg_addunicode(aim_session_t *sess, aim_mpmsg_t *mpm, const fu16_t *unicode, fu16_t unicodelen) |
---|
| 907 | { |
---|
| 908 | fu8_t *buf; |
---|
| 909 | aim_bstream_t bs; |
---|
| 910 | int i; |
---|
| 911 | |
---|
| 912 | if (!(buf = malloc(unicodelen * 2))) |
---|
| 913 | return -1; |
---|
| 914 | |
---|
| 915 | aim_bstream_init(&bs, buf, unicodelen * 2); |
---|
| 916 | |
---|
| 917 | /* We assume unicode is in /host/ byte order -- convert to network */ |
---|
| 918 | for (i = 0; i < unicodelen; i++) |
---|
| 919 | aimbs_put16(&bs, unicode[i]); |
---|
| 920 | |
---|
| 921 | if (mpmsg_addsection(sess, mpm, 0x0002, 0x0000, buf, aim_bstream_curpos(&bs)) == -1) { |
---|
| 922 | free(buf); |
---|
| 923 | return -1; |
---|
| 924 | } |
---|
| 925 | |
---|
| 926 | return 0; |
---|
| 927 | } |
---|
| 928 | |
---|
| 929 | faim_export void aim_mpmsg_free(aim_session_t *sess, aim_mpmsg_t *mpm) |
---|
| 930 | { |
---|
| 931 | aim_mpmsg_section_t *cur; |
---|
| 932 | |
---|
| 933 | for (cur = mpm->parts; cur; ) { |
---|
| 934 | aim_mpmsg_section_t *tmp; |
---|
| 935 | |
---|
| 936 | tmp = cur->next; |
---|
| 937 | free(cur->data); |
---|
| 938 | free(cur); |
---|
| 939 | cur = tmp; |
---|
| 940 | } |
---|
| 941 | |
---|
| 942 | mpm->numparts = 0; |
---|
| 943 | mpm->parts = NULL; |
---|
| 944 | |
---|
| 945 | return; |
---|
| 946 | } |
---|
| 947 | |
---|
| 948 | /* |
---|
| 949 | * Start by building the multipart structures, then pick the first |
---|
| 950 | * human-readable section and stuff it into args->msg so no one gets |
---|
| 951 | * suspicious. |
---|
| 952 | * |
---|
| 953 | */ |
---|
| 954 | static int incomingim_ch1_parsemsgs(aim_session_t *sess, fu8_t *data, int len, struct aim_incomingim_ch1_args *args) |
---|
| 955 | { |
---|
| 956 | static const fu16_t charsetpri[] = { |
---|
| 957 | 0x0000, /* ASCII first */ |
---|
| 958 | 0x0003, /* then ISO-8859-1 */ |
---|
| 959 | 0x0002, /* UNICODE as last resort */ |
---|
| 960 | }; |
---|
| 961 | static const int charsetpricount = 3; |
---|
| 962 | int i; |
---|
| 963 | aim_bstream_t mbs; |
---|
| 964 | aim_mpmsg_section_t *sec; |
---|
| 965 | |
---|
| 966 | aim_bstream_init(&mbs, data, len); |
---|
| 967 | |
---|
| 968 | while (aim_bstream_empty(&mbs)) { |
---|
| 969 | fu16_t msglen, flag1, flag2; |
---|
| 970 | fu8_t *msgbuf; |
---|
| 971 | |
---|
| 972 | aimbs_get8(&mbs); /* 01 */ |
---|
| 973 | aimbs_get8(&mbs); /* 01 */ |
---|
| 974 | |
---|
| 975 | /* Message string length, including character set info. */ |
---|
| 976 | msglen = aimbs_get16(&mbs); |
---|
| 977 | |
---|
| 978 | /* Character set info */ |
---|
| 979 | flag1 = aimbs_get16(&mbs); |
---|
| 980 | flag2 = aimbs_get16(&mbs); |
---|
| 981 | |
---|
| 982 | /* Message. */ |
---|
| 983 | msglen -= 4; |
---|
| 984 | |
---|
| 985 | /* |
---|
| 986 | * For now, we don't care what the encoding is. Just copy |
---|
| 987 | * it into a multipart struct and deal with it later. However, |
---|
| 988 | * always pad the ending with a NULL. This makes it easier |
---|
| 989 | * to treat ASCII sections as strings. It won't matter for |
---|
| 990 | * UNICODE or binary data, as you should never read past |
---|
| 991 | * the specified data length, which will not include the pad. |
---|
| 992 | * |
---|
| 993 | * XXX There's an API bug here. For sending, the UNICODE is |
---|
| 994 | * given in host byte order (aim_mpmsg_addunicode), but here |
---|
| 995 | * the received messages are given in network byte order. |
---|
| 996 | * |
---|
| 997 | */ |
---|
| 998 | msgbuf = aimbs_getstr(&mbs, msglen); |
---|
| 999 | mpmsg_addsection(sess, &args->mpmsg, flag1, flag2, msgbuf, msglen); |
---|
| 1000 | |
---|
| 1001 | } /* while */ |
---|
| 1002 | |
---|
| 1003 | args->icbmflags |= AIM_IMFLAGS_MULTIPART; /* always set */ |
---|
| 1004 | |
---|
| 1005 | /* |
---|
| 1006 | * Clients that support multiparts should never use args->msg, as it |
---|
| 1007 | * will point to an arbitrary section. |
---|
| 1008 | * |
---|
| 1009 | * Here, we attempt to provide clients that do not support multipart |
---|
| 1010 | * messages with something to look at -- hopefully a human-readable |
---|
| 1011 | * string. But, failing that, a UNICODE message, or nothing at all. |
---|
| 1012 | * |
---|
| 1013 | * Which means that even if args->msg is NULL, it does not mean the |
---|
| 1014 | * message was blank. |
---|
| 1015 | * |
---|
| 1016 | */ |
---|
| 1017 | for (i = 0; i < charsetpricount; i++) { |
---|
| 1018 | for (sec = args->mpmsg.parts; sec; sec = sec->next) { |
---|
| 1019 | |
---|
| 1020 | if (sec->charset != charsetpri[i]) |
---|
| 1021 | continue; |
---|
| 1022 | |
---|
| 1023 | /* Great. We found one. Fill it in. */ |
---|
| 1024 | args->charset = sec->charset; |
---|
| 1025 | args->charsubset = sec->charsubset; |
---|
| 1026 | args->icbmflags |= AIM_IMFLAGS_CUSTOMCHARSET; |
---|
| 1027 | |
---|
| 1028 | /* Set up the simple flags */ |
---|
| 1029 | if (args->charset == 0x0000) |
---|
| 1030 | ; /* ASCII */ |
---|
| 1031 | else if (args->charset == 0x0002) |
---|
| 1032 | args->icbmflags |= AIM_IMFLAGS_UNICODE; |
---|
| 1033 | else if (args->charset == 0x0003) |
---|
| 1034 | args->icbmflags |= AIM_IMFLAGS_ISO_8859_1; |
---|
| 1035 | else if (args->charset == 0xffff) |
---|
| 1036 | ; /* no encoding (yeep!) */ |
---|
| 1037 | |
---|
| 1038 | if (args->charsubset == 0x0000) |
---|
| 1039 | ; /* standard subencoding? */ |
---|
| 1040 | else if (args->charsubset == 0x000b) |
---|
| 1041 | args->icbmflags |= AIM_IMFLAGS_SUBENC_MACINTOSH; |
---|
| 1042 | else if (args->charsubset == 0xffff) |
---|
| 1043 | ; /* no subencoding */ |
---|
| 1044 | #if 0 |
---|
| 1045 | /* XXX this isn't really necesary... */ |
---|
| 1046 | if ( ((args.flag1 != 0x0000) && |
---|
| 1047 | (args.flag1 != 0x0002) && |
---|
| 1048 | (args.flag1 != 0x0003) && |
---|
| 1049 | (args.flag1 != 0xffff)) || |
---|
| 1050 | ((args.flag2 != 0x0000) && |
---|
| 1051 | (args.flag2 != 0x000b) && |
---|
| 1052 | (args.flag2 != 0xffff))) { |
---|
| 1053 | faimdprintf(sess, 0, "icbm: **warning: encoding flags are being used! {%04x, %04x}\n", args.flag1, args.flag2); |
---|
| 1054 | } |
---|
| 1055 | #endif |
---|
| 1056 | |
---|
| 1057 | args->msg = sec->data; |
---|
| 1058 | args->msglen = sec->datalen; |
---|
| 1059 | |
---|
| 1060 | return 0; |
---|
| 1061 | } |
---|
| 1062 | } |
---|
| 1063 | |
---|
| 1064 | /* No human-readable sections found. Oh well. */ |
---|
| 1065 | args->charset = args->charsubset = 0xffff; |
---|
| 1066 | args->msg = NULL; |
---|
| 1067 | args->msglen = 0; |
---|
| 1068 | |
---|
| 1069 | return 0; |
---|
| 1070 | } |
---|
| 1071 | |
---|
| 1072 | static int incomingim_ch1(aim_session_t *sess, aim_module_t *mod, aim_frame_t *rx, aim_modsnac_t *snac, fu16_t channel, aim_userinfo_t *userinfo, aim_bstream_t *bs, fu8_t *cookie) |
---|
| 1073 | { |
---|
| 1074 | fu16_t type, length; |
---|
| 1075 | aim_rxcallback_t userfunc; |
---|
| 1076 | int ret = 0; |
---|
| 1077 | struct aim_incomingim_ch1_args args; |
---|
| 1078 | int endpos; |
---|
| 1079 | |
---|
| 1080 | memset(&args, 0, sizeof(args)); |
---|
| 1081 | |
---|
| 1082 | aim_mpmsg_init(sess, &args.mpmsg); |
---|
| 1083 | |
---|
| 1084 | /* |
---|
| 1085 | * This used to be done using tlvchains. For performance reasons, |
---|
| 1086 | * I've changed it to process the TLVs in-place. This avoids lots |
---|
| 1087 | * of per-IM memory allocations. |
---|
| 1088 | */ |
---|
| 1089 | while (aim_bstream_empty(bs)) { |
---|
| 1090 | |
---|
| 1091 | type = aimbs_get16(bs); |
---|
| 1092 | length = aimbs_get16(bs); |
---|
| 1093 | |
---|
| 1094 | endpos = aim_bstream_curpos(bs) + length; |
---|
| 1095 | |
---|
| 1096 | if (type == 0x0002) { /* Message Block */ |
---|
| 1097 | |
---|
| 1098 | /* |
---|
| 1099 | * This TLV consists of the following: |
---|
| 1100 | * - 0501 -- Unknown |
---|
| 1101 | * - Features: Don't know how to interpret these |
---|
| 1102 | * - 0101 -- Unknown |
---|
| 1103 | * - Message |
---|
| 1104 | * |
---|
| 1105 | */ |
---|
| 1106 | |
---|
| 1107 | aimbs_get8(bs); /* 05 */ |
---|
| 1108 | aimbs_get8(bs); /* 01 */ |
---|
| 1109 | |
---|
| 1110 | args.featureslen = aimbs_get16(bs); |
---|
| 1111 | /* XXX XXX this is all evil! */ |
---|
| 1112 | args.features = bs->data + bs->offset; |
---|
| 1113 | aim_bstream_advance(bs, args.featureslen); |
---|
| 1114 | args.icbmflags |= AIM_IMFLAGS_CUSTOMFEATURES; |
---|
| 1115 | |
---|
| 1116 | /* |
---|
| 1117 | * The rest of the TLV contains one or more message |
---|
| 1118 | * blocks... |
---|
| 1119 | */ |
---|
| 1120 | incomingim_ch1_parsemsgs(sess, bs->data + bs->offset /* XXX evil!!! */, length - 2 - 2 - args.featureslen, &args); |
---|
| 1121 | |
---|
| 1122 | } else if (type == 0x0003) { /* Server Ack Requested */ |
---|
| 1123 | |
---|
| 1124 | args.icbmflags |= AIM_IMFLAGS_ACK; |
---|
| 1125 | |
---|
| 1126 | } else if (type == 0x0004) { /* Message is Auto Response */ |
---|
| 1127 | |
---|
| 1128 | args.icbmflags |= AIM_IMFLAGS_AWAY; |
---|
| 1129 | |
---|
| 1130 | } else if (type == 0x0006) { /* Message was received offline. */ |
---|
| 1131 | |
---|
| 1132 | /* XXX not sure if this actually gets sent. */ |
---|
| 1133 | args.icbmflags |= AIM_IMFLAGS_OFFLINE; |
---|
| 1134 | |
---|
| 1135 | } else if (type == 0x0008) { /* I-HAVE-A-REALLY-PURTY-ICON Flag */ |
---|
| 1136 | |
---|
| 1137 | args.iconlen = aimbs_get32(bs); |
---|
| 1138 | aimbs_get16(bs); /* 0x0001 */ |
---|
| 1139 | args.iconsum = aimbs_get16(bs); |
---|
| 1140 | args.iconstamp = aimbs_get32(bs); |
---|
| 1141 | |
---|
| 1142 | /* |
---|
| 1143 | * This looks to be a client bug. MacAIM 4.3 will |
---|
| 1144 | * send this tag, but with all zero values, in the |
---|
| 1145 | * first message of a conversation. This makes no |
---|
| 1146 | * sense whatsoever, so I'm going to say its a bug. |
---|
| 1147 | * |
---|
| 1148 | * You really shouldn't advertise a zero-length icon |
---|
| 1149 | * anyway. |
---|
| 1150 | * |
---|
| 1151 | */ |
---|
| 1152 | if (args.iconlen) |
---|
| 1153 | args.icbmflags |= AIM_IMFLAGS_HASICON; |
---|
| 1154 | |
---|
| 1155 | } else if (type == 0x0009) { |
---|
| 1156 | |
---|
| 1157 | args.icbmflags |= AIM_IMFLAGS_BUDDYREQ; |
---|
| 1158 | |
---|
| 1159 | } else if (type == 0x0017) { |
---|
| 1160 | |
---|
| 1161 | args.extdatalen = length; |
---|
| 1162 | args.extdata = aimbs_getraw(bs, args.extdatalen); |
---|
| 1163 | |
---|
| 1164 | } else { |
---|
| 1165 | faimdprintf(sess, 0, "incomingim_ch1: unknown TLV 0x%04x (len %d)\n", type, length); |
---|
| 1166 | } |
---|
| 1167 | |
---|
| 1168 | /* |
---|
| 1169 | * This is here to protect ourselves from ourselves. That |
---|
| 1170 | * is, if something above doesn't completly parse its value |
---|
| 1171 | * section, or, worse, overparses it, this will set the |
---|
| 1172 | * stream where it needs to be in order to land on the next |
---|
| 1173 | * TLV when the loop continues. |
---|
| 1174 | * |
---|
| 1175 | */ |
---|
| 1176 | aim_bstream_setpos(bs, endpos); |
---|
| 1177 | } |
---|
| 1178 | |
---|
| 1179 | |
---|
| 1180 | if ((userfunc = aim_callhandler(sess, rx->conn, snac->family, snac->subtype))) |
---|
| 1181 | ret = userfunc(sess, rx, channel, userinfo, &args); |
---|
| 1182 | |
---|
| 1183 | aim_mpmsg_free(sess, &args.mpmsg); |
---|
| 1184 | free(args.extdata); |
---|
| 1185 | |
---|
| 1186 | return ret; |
---|
| 1187 | } |
---|
| 1188 | |
---|
| 1189 | static void incomingim_ch2_buddylist(aim_session_t *sess, aim_module_t *mod, aim_frame_t *rx, aim_modsnac_t *snac, aim_userinfo_t *userinfo, struct aim_incomingim_ch2_args *args, aim_bstream_t *servdata) |
---|
| 1190 | { |
---|
| 1191 | |
---|
| 1192 | /* |
---|
| 1193 | * This goes like this... |
---|
| 1194 | * |
---|
| 1195 | * group name length |
---|
| 1196 | * group name |
---|
| 1197 | * num of buddies in group |
---|
| 1198 | * buddy name length |
---|
| 1199 | * buddy name |
---|
| 1200 | * buddy name length |
---|
| 1201 | * buddy name |
---|
| 1202 | * ... |
---|
| 1203 | * group name length |
---|
| 1204 | * group name |
---|
| 1205 | * num of buddies in group |
---|
| 1206 | * buddy name length |
---|
| 1207 | * buddy name |
---|
| 1208 | * ... |
---|
| 1209 | * ... |
---|
| 1210 | */ |
---|
| 1211 | while (servdata && aim_bstream_empty(servdata)) { |
---|
| 1212 | fu16_t gnlen, numb; |
---|
| 1213 | int i; |
---|
| 1214 | char *gn; |
---|
| 1215 | |
---|
| 1216 | gnlen = aimbs_get16(servdata); |
---|
| 1217 | gn = aimbs_getstr(servdata, gnlen); |
---|
| 1218 | numb = aimbs_get16(servdata); |
---|
| 1219 | |
---|
| 1220 | for (i = 0; i < numb; i++) { |
---|
| 1221 | fu16_t bnlen; |
---|
| 1222 | char *bn; |
---|
| 1223 | |
---|
| 1224 | bnlen = aimbs_get16(servdata); |
---|
| 1225 | bn = aimbs_getstr(servdata, bnlen); |
---|
| 1226 | |
---|
| 1227 | faimdprintf(sess, 0, "got a buddy list from %s: group %s, buddy %s\n", userinfo->sn, gn, bn); |
---|
| 1228 | |
---|
| 1229 | free(bn); |
---|
| 1230 | } |
---|
| 1231 | |
---|
| 1232 | free(gn); |
---|
| 1233 | } |
---|
| 1234 | |
---|
| 1235 | return; |
---|
| 1236 | } |
---|
| 1237 | |
---|
| 1238 | static void incomingim_ch2_buddyicon_free(aim_session_t *sess, struct aim_incomingim_ch2_args *args) |
---|
| 1239 | { |
---|
| 1240 | |
---|
| 1241 | free(args->info.icon.icon); |
---|
| 1242 | |
---|
| 1243 | return; |
---|
| 1244 | } |
---|
| 1245 | |
---|
| 1246 | static void incomingim_ch2_buddyicon(aim_session_t *sess, aim_module_t *mod, aim_frame_t *rx, aim_modsnac_t *snac, aim_userinfo_t *userinfo, struct aim_incomingim_ch2_args *args, aim_bstream_t *servdata) |
---|
| 1247 | { |
---|
| 1248 | |
---|
| 1249 | if (servdata) { |
---|
| 1250 | args->info.icon.checksum = aimbs_get32(servdata); |
---|
| 1251 | args->info.icon.length = aimbs_get32(servdata); |
---|
| 1252 | args->info.icon.timestamp = aimbs_get32(servdata); |
---|
| 1253 | args->info.icon.icon = aimbs_getraw(servdata, args->info.icon.length); |
---|
| 1254 | } |
---|
| 1255 | |
---|
| 1256 | args->destructor = (void *)incomingim_ch2_buddyicon_free; |
---|
| 1257 | |
---|
| 1258 | return; |
---|
| 1259 | } |
---|
| 1260 | |
---|
| 1261 | static void incomingim_ch2_chat_free(aim_session_t *sess, struct aim_incomingim_ch2_args *args) |
---|
| 1262 | { |
---|
| 1263 | |
---|
| 1264 | /* XXX aim_chat_roominfo_free() */ |
---|
| 1265 | free(args->info.chat.roominfo.name); |
---|
| 1266 | |
---|
| 1267 | return; |
---|
| 1268 | } |
---|
| 1269 | |
---|
| 1270 | static void incomingim_ch2_chat(aim_session_t *sess, aim_module_t *mod, aim_frame_t *rx, aim_modsnac_t *snac, aim_userinfo_t *userinfo, struct aim_incomingim_ch2_args *args, aim_bstream_t *servdata) |
---|
| 1271 | { |
---|
| 1272 | |
---|
| 1273 | /* |
---|
| 1274 | * Chat room info. |
---|
| 1275 | */ |
---|
| 1276 | if (servdata) |
---|
| 1277 | aim_chat_readroominfo(servdata, &args->info.chat.roominfo); |
---|
| 1278 | |
---|
| 1279 | args->destructor = (void *)incomingim_ch2_chat_free; |
---|
| 1280 | |
---|
| 1281 | return; |
---|
| 1282 | } |
---|
| 1283 | |
---|
| 1284 | static void incomingim_ch2_icqserverrelay_free(aim_session_t *sess, struct aim_incomingim_ch2_args *args) |
---|
| 1285 | { |
---|
| 1286 | |
---|
| 1287 | free((char *)args->info.rtfmsg.rtfmsg); |
---|
| 1288 | |
---|
| 1289 | return; |
---|
| 1290 | } |
---|
| 1291 | |
---|
| 1292 | /* |
---|
| 1293 | * The relationship between AIM_CAPS_ICQSERVERRELAY and AIM_CAPS_ICQRTF is |
---|
| 1294 | * kind of odd. This sends the client ICQRTF since that is all that I've seen |
---|
| 1295 | * SERVERRELAY used for. |
---|
| 1296 | * |
---|
| 1297 | * Note that this is all little-endian. Cringe. |
---|
| 1298 | * |
---|
| 1299 | */ |
---|
| 1300 | static void incomingim_ch2_icqserverrelay(aim_session_t *sess, aim_module_t *mod, aim_frame_t *rx, aim_modsnac_t *snac, aim_userinfo_t *userinfo, struct aim_incomingim_ch2_args *args, aim_bstream_t *servdata) |
---|
| 1301 | { |
---|
| 1302 | fu16_t hdrlen, anslen, msglen; |
---|
| 1303 | fu16_t msgtype; |
---|
| 1304 | |
---|
| 1305 | hdrlen = aimbs_getle16(servdata); |
---|
| 1306 | aim_bstream_advance(servdata, hdrlen); |
---|
| 1307 | |
---|
| 1308 | hdrlen = aimbs_getle16(servdata); |
---|
| 1309 | aim_bstream_advance(servdata, hdrlen); |
---|
| 1310 | |
---|
| 1311 | msgtype = aimbs_getle16(servdata); |
---|
| 1312 | |
---|
| 1313 | anslen = aimbs_getle32(servdata); |
---|
| 1314 | aim_bstream_advance(servdata, anslen); |
---|
| 1315 | |
---|
| 1316 | msglen = aimbs_getle16(servdata); |
---|
| 1317 | args->info.rtfmsg.rtfmsg = aimbs_getstr(servdata, msglen); |
---|
| 1318 | |
---|
| 1319 | args->info.rtfmsg.fgcolor = aimbs_getle32(servdata); |
---|
| 1320 | args->info.rtfmsg.bgcolor = aimbs_getle32(servdata); |
---|
| 1321 | |
---|
| 1322 | hdrlen = aimbs_getle32(servdata); |
---|
| 1323 | aim_bstream_advance(servdata, hdrlen); |
---|
| 1324 | |
---|
| 1325 | /* XXX This is such a hack. */ |
---|
| 1326 | args->reqclass = AIM_CAPS_ICQRTF; |
---|
| 1327 | |
---|
| 1328 | args->destructor = (void *)incomingim_ch2_icqserverrelay_free; |
---|
| 1329 | |
---|
| 1330 | return; |
---|
| 1331 | } |
---|
| 1332 | |
---|
| 1333 | typedef void (*ch2_args_destructor_t)(aim_session_t *sess, struct aim_incomingim_ch2_args *args); |
---|
| 1334 | |
---|
| 1335 | static int incomingim_ch2(aim_session_t *sess, aim_module_t *mod, aim_frame_t *rx, aim_modsnac_t *snac, fu16_t channel, aim_userinfo_t *userinfo, aim_tlvlist_t *tlvlist, fu8_t *cookie) |
---|
| 1336 | { |
---|
| 1337 | aim_rxcallback_t userfunc; |
---|
| 1338 | aim_tlv_t *block1, *servdatatlv; |
---|
| 1339 | aim_tlvlist_t *list2; |
---|
| 1340 | struct aim_incomingim_ch2_args args; |
---|
| 1341 | aim_bstream_t bbs, sdbs, *sdbsptr = NULL; |
---|
| 1342 | fu8_t *cookie2; |
---|
| 1343 | int ret = 0; |
---|
| 1344 | |
---|
| 1345 | char clientip1[30] = {""}; |
---|
| 1346 | char clientip2[30] = {""}; |
---|
| 1347 | char verifiedip[30] = {""}; |
---|
| 1348 | |
---|
| 1349 | memset(&args, 0, sizeof(args)); |
---|
| 1350 | |
---|
| 1351 | /* |
---|
| 1352 | * There's another block of TLVs embedded in the type 5 here. |
---|
| 1353 | */ |
---|
| 1354 | block1 = aim_gettlv(tlvlist, 0x0005, 1); |
---|
| 1355 | aim_bstream_init(&bbs, block1->value, block1->length); |
---|
| 1356 | |
---|
| 1357 | /* |
---|
| 1358 | * First two bytes represent the status of the connection. |
---|
| 1359 | * |
---|
| 1360 | * 0 is a request, 1 is a deny (?), 2 is an accept |
---|
| 1361 | */ |
---|
| 1362 | args.status = aimbs_get16(&bbs); |
---|
| 1363 | |
---|
| 1364 | /* |
---|
| 1365 | * Next comes the cookie. Should match the ICBM cookie. |
---|
| 1366 | */ |
---|
| 1367 | cookie2 = aimbs_getraw(&bbs, 8); |
---|
| 1368 | if (memcmp(cookie, cookie2, 8) != 0) |
---|
| 1369 | faimdprintf(sess, 0, "rend: warning cookies don't match!\n"); |
---|
| 1370 | memcpy(args.cookie, cookie2, 8); |
---|
| 1371 | free(cookie2); |
---|
| 1372 | |
---|
| 1373 | /* |
---|
| 1374 | * The next 16bytes are a capability block so we can |
---|
| 1375 | * identify what type of rendezvous this is. |
---|
| 1376 | */ |
---|
| 1377 | args.reqclass = aim_getcap(sess, &bbs, 0x10); |
---|
| 1378 | |
---|
| 1379 | /* |
---|
| 1380 | * What follows may be TLVs or nothing, depending on the |
---|
| 1381 | * purpose of the message. |
---|
| 1382 | * |
---|
| 1383 | * Ack packets for instance have nothing more to them. |
---|
| 1384 | */ |
---|
| 1385 | list2 = aim_readtlvchain(&bbs); |
---|
| 1386 | |
---|
| 1387 | /* |
---|
| 1388 | * IP address from the perspective of the client. |
---|
| 1389 | */ |
---|
| 1390 | if (aim_gettlv(list2, 0x0002, 1)) { |
---|
| 1391 | aim_tlv_t *iptlv; |
---|
| 1392 | |
---|
| 1393 | iptlv = aim_gettlv(list2, 0x0002, 1); |
---|
| 1394 | |
---|
| 1395 | snprintf(clientip1, sizeof(clientip1), "%d.%d.%d.%d", |
---|
| 1396 | aimutil_get8(iptlv->value+0), |
---|
| 1397 | aimutil_get8(iptlv->value+1), |
---|
| 1398 | aimutil_get8(iptlv->value+2), |
---|
| 1399 | aimutil_get8(iptlv->value+3)); |
---|
| 1400 | } |
---|
| 1401 | |
---|
| 1402 | /* |
---|
| 1403 | * Secondary IP address from the perspective of the client. |
---|
| 1404 | */ |
---|
| 1405 | if (aim_gettlv(list2, 0x0003, 1)) { |
---|
| 1406 | aim_tlv_t *iptlv; |
---|
| 1407 | |
---|
| 1408 | iptlv = aim_gettlv(list2, 0x0003, 1); |
---|
| 1409 | |
---|
| 1410 | snprintf(clientip2, sizeof(clientip2), "%d.%d.%d.%d", |
---|
| 1411 | aimutil_get8(iptlv->value+0), |
---|
| 1412 | aimutil_get8(iptlv->value+1), |
---|
| 1413 | aimutil_get8(iptlv->value+2), |
---|
| 1414 | aimutil_get8(iptlv->value+3)); |
---|
| 1415 | } |
---|
| 1416 | |
---|
| 1417 | /* |
---|
| 1418 | * Verified IP address (from the perspective of Oscar). |
---|
| 1419 | * |
---|
| 1420 | * This is added by the server. |
---|
| 1421 | */ |
---|
| 1422 | if (aim_gettlv(list2, 0x0004, 1)) { |
---|
| 1423 | aim_tlv_t *iptlv; |
---|
| 1424 | |
---|
| 1425 | iptlv = aim_gettlv(list2, 0x0004, 1); |
---|
| 1426 | |
---|
| 1427 | snprintf(verifiedip, sizeof(verifiedip), "%d.%d.%d.%d", |
---|
| 1428 | aimutil_get8(iptlv->value+0), |
---|
| 1429 | aimutil_get8(iptlv->value+1), |
---|
| 1430 | aimutil_get8(iptlv->value+2), |
---|
| 1431 | aimutil_get8(iptlv->value+3)); |
---|
| 1432 | } |
---|
| 1433 | |
---|
| 1434 | /* |
---|
| 1435 | * Port number for something. |
---|
| 1436 | */ |
---|
| 1437 | if (aim_gettlv(list2, 0x0005, 1)) |
---|
| 1438 | args.port = aim_gettlv16(list2, 0x0005, 1); |
---|
| 1439 | |
---|
| 1440 | /* |
---|
| 1441 | * Error code. |
---|
| 1442 | */ |
---|
| 1443 | if (aim_gettlv(list2, 0x000b, 1)) |
---|
| 1444 | args.errorcode = aim_gettlv16(list2, 0x000b, 1); |
---|
| 1445 | |
---|
| 1446 | /* |
---|
| 1447 | * Invitation message / chat description. |
---|
| 1448 | */ |
---|
| 1449 | if (aim_gettlv(list2, 0x000c, 1)) |
---|
| 1450 | args.msg = aim_gettlv_str(list2, 0x000c, 1); |
---|
| 1451 | |
---|
| 1452 | /* |
---|
| 1453 | * Character set. |
---|
| 1454 | */ |
---|
| 1455 | if (aim_gettlv(list2, 0x000d, 1)) |
---|
| 1456 | args.encoding = aim_gettlv_str(list2, 0x000d, 1); |
---|
| 1457 | |
---|
| 1458 | /* |
---|
| 1459 | * Language. |
---|
| 1460 | */ |
---|
| 1461 | if (aim_gettlv(list2, 0x000e, 1)) |
---|
| 1462 | args.language = aim_gettlv_str(list2, 0x000e, 1); |
---|
| 1463 | |
---|
| 1464 | /* Unknown -- two bytes = 0x0001 */ |
---|
| 1465 | if (aim_gettlv(list2, 0x000a, 1)) |
---|
| 1466 | ; |
---|
| 1467 | |
---|
| 1468 | /* Unknown -- no value */ |
---|
| 1469 | if (aim_gettlv(list2, 0x000f, 1)) |
---|
| 1470 | ; |
---|
| 1471 | |
---|
| 1472 | if (strlen(clientip1)) |
---|
| 1473 | args.clientip = (char *)clientip1; |
---|
| 1474 | if (strlen(clientip2)) |
---|
| 1475 | args.clientip2 = (char *)clientip2; |
---|
| 1476 | if (strlen(verifiedip)) |
---|
| 1477 | args.verifiedip = (char *)verifiedip; |
---|
| 1478 | |
---|
| 1479 | /* |
---|
| 1480 | * This is must be present in PROPOSALs, but will probably not |
---|
| 1481 | * exist in CANCELs and ACCEPTs. |
---|
| 1482 | * |
---|
| 1483 | * Service Data blocks are module-specific in format. |
---|
| 1484 | */ |
---|
| 1485 | if ((servdatatlv = aim_gettlv(list2, 0x2711 /* 10001 */, 1))) { |
---|
| 1486 | |
---|
| 1487 | aim_bstream_init(&sdbs, servdatatlv->value, servdatatlv->length); |
---|
| 1488 | sdbsptr = &sdbs; |
---|
| 1489 | } |
---|
| 1490 | |
---|
| 1491 | /* |
---|
| 1492 | * The rest of the handling depends on what type it is. |
---|
| 1493 | * |
---|
| 1494 | * Not all of them have special handling (yet). |
---|
| 1495 | */ |
---|
| 1496 | if (args.reqclass & AIM_CAPS_BUDDYICON) |
---|
| 1497 | incomingim_ch2_buddyicon(sess, mod, rx, snac, userinfo, &args, sdbsptr); |
---|
| 1498 | else if (args.reqclass & AIM_CAPS_SENDBUDDYLIST) |
---|
| 1499 | incomingim_ch2_buddylist(sess, mod, rx, snac, userinfo, &args, sdbsptr); |
---|
| 1500 | else if (args.reqclass & AIM_CAPS_CHAT) |
---|
| 1501 | incomingim_ch2_chat(sess, mod, rx, snac, userinfo, &args, sdbsptr); |
---|
| 1502 | else if (args.reqclass & AIM_CAPS_ICQSERVERRELAY) |
---|
| 1503 | incomingim_ch2_icqserverrelay(sess, mod, rx, snac, userinfo, &args, sdbsptr); |
---|
| 1504 | |
---|
| 1505 | |
---|
| 1506 | if ((userfunc = aim_callhandler(sess, rx->conn, snac->family, snac->subtype))) |
---|
| 1507 | ret = userfunc(sess, rx, channel, userinfo, &args); |
---|
| 1508 | |
---|
| 1509 | |
---|
| 1510 | if (args.destructor) |
---|
| 1511 | ((ch2_args_destructor_t)args.destructor)(sess, &args); |
---|
| 1512 | |
---|
| 1513 | free((char *)args.msg); |
---|
| 1514 | free((char *)args.encoding); |
---|
| 1515 | free((char *)args.language); |
---|
| 1516 | |
---|
| 1517 | aim_freetlvchain(&list2); |
---|
| 1518 | |
---|
| 1519 | return ret; |
---|
| 1520 | } |
---|
| 1521 | |
---|
| 1522 | /* |
---|
| 1523 | * It can easily be said that parsing ICBMs is THE single |
---|
| 1524 | * most difficult thing to do in the in AIM protocol. In |
---|
| 1525 | * fact, I think I just did say that. |
---|
| 1526 | * |
---|
| 1527 | * Below is the best damned solution I've come up with |
---|
| 1528 | * over the past sixteen months of battling with it. This |
---|
| 1529 | * can parse both away and normal messages from every client |
---|
| 1530 | * I have access to. Its not fast, its not clean. But it works. |
---|
| 1531 | * |
---|
| 1532 | */ |
---|
| 1533 | static int incomingim(aim_session_t *sess, aim_module_t *mod, aim_frame_t *rx, aim_modsnac_t *snac, aim_bstream_t *bs) |
---|
| 1534 | { |
---|
| 1535 | int i, ret = 0; |
---|
| 1536 | fu8_t cookie[8]; |
---|
| 1537 | fu16_t channel; |
---|
| 1538 | aim_userinfo_t userinfo; |
---|
| 1539 | |
---|
| 1540 | memset(&userinfo, 0x00, sizeof(aim_userinfo_t)); |
---|
| 1541 | |
---|
| 1542 | /* |
---|
| 1543 | * Read ICBM Cookie. And throw away. |
---|
| 1544 | */ |
---|
| 1545 | for (i = 0; i < 8; i++) |
---|
| 1546 | cookie[i] = aimbs_get8(bs); |
---|
| 1547 | |
---|
| 1548 | /* |
---|
| 1549 | * Channel ID. |
---|
| 1550 | * |
---|
| 1551 | * Channel 0x0001 is the message channel. There are |
---|
| 1552 | * other channels for things called "rendevous" |
---|
| 1553 | * which represent chat and some of the other new |
---|
| 1554 | * features of AIM2/3/3.5. |
---|
| 1555 | * |
---|
| 1556 | * Channel 0x0002 is the Rendevous channel, which |
---|
| 1557 | * is where Chat Invitiations and various client-client |
---|
| 1558 | * connection negotiations come from. |
---|
| 1559 | * |
---|
| 1560 | */ |
---|
| 1561 | channel = aimbs_get16(bs); |
---|
| 1562 | |
---|
| 1563 | /* |
---|
| 1564 | * Extract the standard user info block. |
---|
| 1565 | * |
---|
| 1566 | * Note that although this contains TLVs that appear contiguous |
---|
| 1567 | * with the TLVs read below, they are two different pieces. The |
---|
| 1568 | * userinfo block contains the number of TLVs that contain user |
---|
| 1569 | * information, the rest are not even though there is no seperation. |
---|
| 1570 | * aim_extractuserinfo() returns the number of bytes used by the |
---|
| 1571 | * userinfo tlvs, so you can start reading the rest of them right |
---|
| 1572 | * afterward. |
---|
| 1573 | * |
---|
| 1574 | * That also means that TLV types can be duplicated between the |
---|
| 1575 | * userinfo block and the rest of the message, however there should |
---|
| 1576 | * never be two TLVs of the same type in one block. |
---|
| 1577 | * |
---|
| 1578 | */ |
---|
| 1579 | aim_extractuserinfo(sess, bs, &userinfo); |
---|
| 1580 | |
---|
| 1581 | /* |
---|
| 1582 | * From here on, its depends on what channel we're on. |
---|
| 1583 | * |
---|
| 1584 | * Technically all channels have a TLV list have this, however, |
---|
| 1585 | * for the common channel 1 case, in-place parsing is used for |
---|
| 1586 | * performance reasons (less memory allocation). |
---|
| 1587 | */ |
---|
| 1588 | if (channel == 1) { |
---|
| 1589 | |
---|
| 1590 | ret = incomingim_ch1(sess, mod, rx, snac, channel, &userinfo, bs, cookie); |
---|
| 1591 | |
---|
| 1592 | } else if (channel == 2) { |
---|
| 1593 | aim_tlvlist_t *tlvlist; |
---|
| 1594 | |
---|
| 1595 | /* |
---|
| 1596 | * Read block of TLVs (not including the userinfo data). All |
---|
| 1597 | * further data is derived from what is parsed here. |
---|
| 1598 | */ |
---|
| 1599 | tlvlist = aim_readtlvchain(bs); |
---|
| 1600 | |
---|
| 1601 | ret = incomingim_ch2(sess, mod, rx, snac, channel, &userinfo, tlvlist, cookie); |
---|
| 1602 | |
---|
| 1603 | aim_freetlvchain(&tlvlist); |
---|
| 1604 | |
---|
| 1605 | } else { |
---|
| 1606 | |
---|
| 1607 | faimdprintf(sess, 0, "icbm: ICBM received on an unsupported channel. Ignoring.\n (chan = %04x)", channel); |
---|
| 1608 | |
---|
| 1609 | return 0; |
---|
| 1610 | } |
---|
| 1611 | |
---|
| 1612 | return ret; |
---|
| 1613 | } |
---|
| 1614 | |
---|
| 1615 | /* |
---|
| 1616 | * Possible codes: |
---|
| 1617 | * AIM_TRANSFER_DENY_NOTSUPPORTED -- "client does not support" |
---|
| 1618 | * AIM_TRANSFER_DENY_DECLINE -- "client has declined transfer" |
---|
| 1619 | * AIM_TRANSFER_DENY_NOTACCEPTING -- "client is not accepting transfers" |
---|
| 1620 | * |
---|
| 1621 | */ |
---|
| 1622 | faim_export int aim_denytransfer(aim_session_t *sess, const char *sender, const char *cookie, fu16_t code) |
---|
| 1623 | { |
---|
| 1624 | aim_conn_t *conn; |
---|
| 1625 | aim_frame_t *fr; |
---|
| 1626 | aim_snacid_t snacid; |
---|
| 1627 | aim_tlvlist_t *tl = NULL; |
---|
| 1628 | |
---|
| 1629 | if (!sess || !(conn = aim_conn_findbygroup(sess, 0x0004))) |
---|
| 1630 | return -EINVAL; |
---|
| 1631 | |
---|
| 1632 | if (!(fr = aim_tx_new(sess, conn, AIM_FRAMETYPE_FLAP, 0x02, 10+8+2+1+strlen(sender)+6))) |
---|
| 1633 | return -ENOMEM; |
---|
| 1634 | |
---|
| 1635 | snacid = aim_cachesnac(sess, 0x0004, 0x000b, 0x0000, NULL, 0); |
---|
| 1636 | aim_putsnac(&fr->data, 0x0004, 0x000b, 0x0000, snacid); |
---|
| 1637 | |
---|
| 1638 | aimbs_putraw(&fr->data, cookie, 8); |
---|
| 1639 | |
---|
| 1640 | aimbs_put16(&fr->data, 0x0002); /* channel */ |
---|
| 1641 | aimbs_put8(&fr->data, strlen(sender)); |
---|
| 1642 | aimbs_putraw(&fr->data, sender, strlen(sender)); |
---|
| 1643 | |
---|
| 1644 | aim_addtlvtochain16(&tl, 0x0003, code); |
---|
| 1645 | aim_writetlvchain(&fr->data, &tl); |
---|
| 1646 | aim_freetlvchain(&tl); |
---|
| 1647 | |
---|
| 1648 | aim_tx_enqueue(sess, fr); |
---|
| 1649 | |
---|
| 1650 | return 0; |
---|
| 1651 | } |
---|
| 1652 | |
---|
| 1653 | /* |
---|
| 1654 | * aim_reqicbmparaminfo() |
---|
| 1655 | * |
---|
| 1656 | * Request ICBM parameter information. |
---|
| 1657 | * |
---|
| 1658 | */ |
---|
| 1659 | faim_export int aim_reqicbmparams(aim_session_t *sess) |
---|
| 1660 | { |
---|
| 1661 | aim_conn_t *conn; |
---|
| 1662 | |
---|
| 1663 | if (!sess || !(conn = aim_conn_findbygroup(sess, 0x0004))) |
---|
| 1664 | return -EINVAL; |
---|
| 1665 | |
---|
| 1666 | return aim_genericreq_n(sess, conn, 0x0004, 0x0004); |
---|
| 1667 | } |
---|
| 1668 | |
---|
| 1669 | /* |
---|
| 1670 | * |
---|
| 1671 | * I definitly recommend sending this. If you don't, you'll be stuck |
---|
| 1672 | * with the rather unreasonable defaults. You don't want those. Send this. |
---|
| 1673 | * |
---|
| 1674 | */ |
---|
| 1675 | faim_export int aim_seticbmparam(aim_session_t *sess, struct aim_icbmparameters *params) |
---|
| 1676 | { |
---|
| 1677 | aim_conn_t *conn; |
---|
| 1678 | aim_frame_t *fr; |
---|
| 1679 | aim_snacid_t snacid; |
---|
| 1680 | |
---|
| 1681 | if (!sess || !(conn = aim_conn_findbygroup(sess, 0x0004))) |
---|
| 1682 | return -EINVAL; |
---|
| 1683 | |
---|
| 1684 | if (!params) |
---|
| 1685 | return -EINVAL; |
---|
| 1686 | |
---|
| 1687 | if (!(fr = aim_tx_new(sess, conn, AIM_FRAMETYPE_FLAP, 0x02, 10+16))) |
---|
| 1688 | return -ENOMEM; |
---|
| 1689 | |
---|
| 1690 | snacid = aim_cachesnac(sess, 0x0004, 0x0002, 0x0000, NULL, 0); |
---|
| 1691 | aim_putsnac(&fr->data, 0x0004, 0x0002, 0x0000, snacid); |
---|
| 1692 | |
---|
| 1693 | /* This is read-only (see Parameter Reply). Must be set to zero here. */ |
---|
| 1694 | aimbs_put16(&fr->data, 0x0000); |
---|
| 1695 | |
---|
| 1696 | /* These are all read-write */ |
---|
| 1697 | aimbs_put32(&fr->data, params->flags); |
---|
| 1698 | aimbs_put16(&fr->data, params->maxmsglen); |
---|
| 1699 | aimbs_put16(&fr->data, params->maxsenderwarn); |
---|
| 1700 | aimbs_put16(&fr->data, params->maxrecverwarn); |
---|
| 1701 | aimbs_put32(&fr->data, params->minmsginterval); |
---|
| 1702 | |
---|
| 1703 | aim_tx_enqueue(sess, fr); |
---|
| 1704 | |
---|
| 1705 | return 0; |
---|
| 1706 | } |
---|
| 1707 | |
---|
| 1708 | static int paraminfo(aim_session_t *sess, aim_module_t *mod, aim_frame_t *rx, aim_modsnac_t *snac, aim_bstream_t *bs) |
---|
| 1709 | { |
---|
| 1710 | struct aim_icbmparameters params; |
---|
| 1711 | aim_rxcallback_t userfunc; |
---|
| 1712 | |
---|
| 1713 | params.maxchan = aimbs_get16(bs); |
---|
| 1714 | params.flags = aimbs_get32(bs); |
---|
| 1715 | params.maxmsglen = aimbs_get16(bs); |
---|
| 1716 | params.maxsenderwarn = aimbs_get16(bs); |
---|
| 1717 | params.maxrecverwarn = aimbs_get16(bs); |
---|
| 1718 | params.minmsginterval = aimbs_get32(bs); |
---|
| 1719 | |
---|
| 1720 | if ((userfunc = aim_callhandler(sess, rx->conn, snac->family, snac->subtype))) |
---|
| 1721 | return userfunc(sess, rx, ¶ms); |
---|
| 1722 | |
---|
| 1723 | return 0; |
---|
| 1724 | } |
---|
| 1725 | |
---|
| 1726 | static int missedcall(aim_session_t *sess, aim_module_t *mod, aim_frame_t *rx, aim_modsnac_t *snac, aim_bstream_t *bs) |
---|
| 1727 | { |
---|
| 1728 | int ret = 0; |
---|
| 1729 | aim_rxcallback_t userfunc; |
---|
| 1730 | fu16_t channel, nummissed, reason; |
---|
| 1731 | aim_userinfo_t userinfo; |
---|
| 1732 | |
---|
| 1733 | while (aim_bstream_empty(bs)) { |
---|
| 1734 | |
---|
| 1735 | channel = aimbs_get16(bs); |
---|
| 1736 | aim_extractuserinfo(sess, bs, &userinfo); |
---|
| 1737 | nummissed = aimbs_get16(bs); |
---|
| 1738 | reason = aimbs_get16(bs); |
---|
| 1739 | |
---|
| 1740 | if ((userfunc = aim_callhandler(sess, rx->conn, snac->family, snac->subtype))) |
---|
| 1741 | ret = userfunc(sess, rx, channel, &userinfo, nummissed, reason); |
---|
| 1742 | } |
---|
| 1743 | |
---|
| 1744 | return ret; |
---|
| 1745 | } |
---|
| 1746 | |
---|
| 1747 | static int clienterr(aim_session_t *sess, aim_module_t *mod, aim_frame_t *rx, aim_modsnac_t *snac, aim_bstream_t *bs) |
---|
| 1748 | { |
---|
| 1749 | int ret = 0; |
---|
| 1750 | aim_rxcallback_t userfunc; |
---|
| 1751 | fu16_t channel, reason; |
---|
| 1752 | char *sn; |
---|
| 1753 | fu8_t *ck, snlen; |
---|
| 1754 | |
---|
| 1755 | ck = aimbs_getraw(bs, 8); |
---|
| 1756 | channel = aimbs_get16(bs); |
---|
| 1757 | snlen = aimbs_get8(bs); |
---|
| 1758 | sn = aimbs_getstr(bs, snlen); |
---|
| 1759 | reason = aimbs_get16(bs); |
---|
| 1760 | |
---|
| 1761 | if ((userfunc = aim_callhandler(sess, rx->conn, snac->family, snac->subtype))) |
---|
| 1762 | ret = userfunc(sess, rx, channel, sn, reason); |
---|
| 1763 | |
---|
| 1764 | free(ck); |
---|
| 1765 | free(sn); |
---|
| 1766 | |
---|
| 1767 | return ret; |
---|
| 1768 | } |
---|
| 1769 | |
---|
| 1770 | static int msgack(aim_session_t *sess, aim_module_t *mod, aim_frame_t *rx, aim_modsnac_t *snac, aim_bstream_t *bs) |
---|
| 1771 | { |
---|
| 1772 | aim_rxcallback_t userfunc; |
---|
| 1773 | fu16_t type; |
---|
| 1774 | fu8_t snlen, *ck; |
---|
| 1775 | char *sn; |
---|
| 1776 | int ret = 0; |
---|
| 1777 | |
---|
| 1778 | ck = aimbs_getraw(bs, 8); |
---|
| 1779 | type = aimbs_get16(bs); |
---|
| 1780 | snlen = aimbs_get8(bs); |
---|
| 1781 | sn = aimbs_getstr(bs, snlen); |
---|
| 1782 | |
---|
| 1783 | if ((userfunc = aim_callhandler(sess, rx->conn, snac->family, snac->subtype))) |
---|
| 1784 | ret = userfunc(sess, rx, type, sn); |
---|
| 1785 | |
---|
| 1786 | free(sn); |
---|
| 1787 | free(ck); |
---|
| 1788 | |
---|
| 1789 | return ret; |
---|
| 1790 | } |
---|
| 1791 | |
---|
| 1792 | static int snachandler(aim_session_t *sess, aim_module_t *mod, aim_frame_t *rx, aim_modsnac_t *snac, aim_bstream_t *bs) |
---|
| 1793 | { |
---|
| 1794 | |
---|
| 1795 | if (snac->subtype == 0x0005) |
---|
| 1796 | return paraminfo(sess, mod, rx, snac, bs); |
---|
| 1797 | else if (snac->subtype == 0x0006) |
---|
| 1798 | return outgoingim(sess, mod, rx, snac, bs); |
---|
| 1799 | else if (snac->subtype == 0x0007) |
---|
| 1800 | return incomingim(sess, mod, rx, snac, bs); |
---|
| 1801 | else if (snac->subtype == 0x000a) |
---|
| 1802 | return missedcall(sess, mod, rx, snac, bs); |
---|
| 1803 | else if (snac->subtype == 0x000b) |
---|
| 1804 | return clienterr(sess, mod, rx, snac, bs); |
---|
| 1805 | else if (snac->subtype == 0x000c) |
---|
| 1806 | return msgack(sess, mod, rx, snac, bs); |
---|
| 1807 | |
---|
| 1808 | return 0; |
---|
| 1809 | } |
---|
| 1810 | |
---|
| 1811 | faim_internal int msg_modfirst(aim_session_t *sess, aim_module_t *mod) |
---|
| 1812 | { |
---|
| 1813 | |
---|
| 1814 | mod->family = 0x0004; |
---|
| 1815 | mod->version = 0x0001; |
---|
| 1816 | mod->toolid = 0x0110; |
---|
| 1817 | mod->toolversion = 0x047b; |
---|
| 1818 | mod->flags = 0; |
---|
| 1819 | strncpy(mod->name, "messaging", sizeof(mod->name)); |
---|
| 1820 | mod->snachandler = snachandler; |
---|
| 1821 | |
---|
| 1822 | return 0; |
---|
| 1823 | } |
---|