[b7d3cc34] | 1 | /* |
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| 2 | * This program is free software; you can redistribute it and/or modify |
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| 3 | * it under the terms of the GNU General Public License as published by |
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| 4 | * the Free Software Foundation; either version 2 of the License, or |
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| 5 | * (at your option) any later version. |
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| 6 | * |
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| 7 | * This program is distributed in the hope that it will be useful, |
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| 8 | * but WITHOUT ANY WARRANTY; without even the implied warranty of |
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| 9 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
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| 10 | * GNU General Public License for more details. |
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| 11 | * |
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| 12 | * You should have received a copy of the GNU General Public License |
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| 13 | * along with this program; if not, write to the Free Software |
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| 14 | * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. |
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| 15 | * |
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| 16 | * Jabber |
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| 17 | * Copyright (C) 1998-1999 The Jabber Team http://jabber.org/ |
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| 18 | */ |
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| 19 | |
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| 20 | #include <string.h> |
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| 21 | #include <stdlib.h> |
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| 22 | #include <sys/types.h> |
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| 23 | #include <stdio.h> |
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| 24 | #include <setjmp.h> |
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| 25 | #include <sys/stat.h> |
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| 26 | #include <fcntl.h> |
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| 27 | #include <errno.h> |
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| 28 | #include <signal.h> |
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| 29 | #include <stdarg.h> |
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| 30 | #include <time.h> |
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| 31 | #include <ctype.h> |
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| 32 | #ifdef _WIN32 |
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| 33 | #undef DATADIR |
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| 34 | #include "sock.h" |
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| 35 | #endif |
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| 36 | |
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| 37 | #include "lib.h" |
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| 38 | |
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| 39 | |
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| 40 | #ifndef INCL_JABBER_H |
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| 41 | #define INCL_JABBER_H |
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| 42 | |
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| 43 | #ifdef __cplusplus |
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| 44 | extern "C" { |
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| 45 | #endif |
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| 46 | |
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| 47 | /* --------------------------------------------------------- */ |
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| 48 | /* */ |
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| 49 | /* JID structures & constants */ |
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| 50 | /* */ |
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| 51 | /* --------------------------------------------------------- */ |
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| 52 | #define JID_RESOURCE 1 |
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| 53 | #define JID_USER 2 |
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| 54 | #define JID_SERVER 4 |
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| 55 | |
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| 56 | typedef struct jid_struct |
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| 57 | { |
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| 58 | pool p; |
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| 59 | char* resource; |
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| 60 | char* user; |
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| 61 | char* server; |
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| 62 | char* full; |
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| 63 | struct jid_struct *next; /* for lists of jids */ |
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| 64 | } *jid; |
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| 65 | |
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| 66 | jid jid_new(pool p, char *idstr); /* Creates a jabber id from the idstr */ |
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| 67 | void jid_set(jid id, char *str, int item); /* Individually sets jid components */ |
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| 68 | char* jid_full(jid id); /* Builds a string type=user/resource@server from the jid data */ |
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| 69 | int jid_cmp(jid a, jid b); /* Compares two jid's, returns 0 for perfect match */ |
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| 70 | int jid_cmpx(jid a, jid b, int parts); /* Compares just the parts specified as JID_|JID_ */ |
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| 71 | jid jid_append(jid a, jid b); /* Appending b to a (list), no dups */ |
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| 72 | xmlnode jid_xres(jid id); /* Returns xmlnode representation of the resource?query=string */ |
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| 73 | xmlnode jid_nodescan(jid id, xmlnode x); /* Scans the children of the node for a matching jid attribute */ |
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| 74 | jid jid_user(jid a); /* returns the same jid but just of the user@host part */ |
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| 75 | |
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| 76 | |
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| 77 | /* --------------------------------------------------------- */ |
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| 78 | /* */ |
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| 79 | /* JPacket structures & constants */ |
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| 80 | /* */ |
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| 81 | /* --------------------------------------------------------- */ |
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| 82 | #define JPACKET_UNKNOWN 0x00 |
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| 83 | #define JPACKET_MESSAGE 0x01 |
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| 84 | #define JPACKET_PRESENCE 0x02 |
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| 85 | #define JPACKET_IQ 0x04 |
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| 86 | #define JPACKET_S10N 0x08 |
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| 87 | |
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| 88 | #define JPACKET__UNKNOWN 0 |
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| 89 | #define JPACKET__NONE 1 |
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| 90 | #define JPACKET__ERROR 2 |
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| 91 | #define JPACKET__CHAT 3 |
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| 92 | #define JPACKET__GROUPCHAT 4 |
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| 93 | #define JPACKET__GET 5 |
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| 94 | #define JPACKET__SET 6 |
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| 95 | #define JPACKET__RESULT 7 |
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| 96 | #define JPACKET__SUBSCRIBE 8 |
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| 97 | #define JPACKET__SUBSCRIBED 9 |
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| 98 | #define JPACKET__UNSUBSCRIBE 10 |
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| 99 | #define JPACKET__UNSUBSCRIBED 11 |
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| 100 | #define JPACKET__AVAILABLE 12 |
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| 101 | #define JPACKET__UNAVAILABLE 13 |
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| 102 | #define JPACKET__PROBE 14 |
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| 103 | #define JPACKET__HEADLINE 15 |
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| 104 | #define JPACKET__INVISIBLE 16 |
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| 105 | |
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| 106 | typedef struct jpacket_struct |
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| 107 | { |
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| 108 | unsigned char type; |
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| 109 | int subtype; |
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| 110 | int flag; |
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| 111 | void* aux1; |
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| 112 | xmlnode x; |
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| 113 | jid to; |
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| 114 | jid from; |
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| 115 | char* iqns; |
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| 116 | xmlnode iq; |
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| 117 | pool p; |
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| 118 | } *jpacket, _jpacket; |
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| 119 | |
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| 120 | jpacket jpacket_new(xmlnode x); /* Creates a jabber packet from the xmlnode */ |
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| 121 | int jpacket_subtype(jpacket p); /* Returns the subtype value (looks at xmlnode for it) */ |
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| 122 | |
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| 123 | |
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| 124 | /* --------------------------------------------------------- */ |
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| 125 | /* */ |
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| 126 | /* Presence Proxy DB structures & constants */ |
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| 127 | /* */ |
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| 128 | /* --------------------------------------------------------- */ |
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| 129 | typedef struct ppdb_struct |
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| 130 | { |
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| 131 | jid id; /* entry data */ |
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| 132 | int pri; |
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| 133 | xmlnode x; |
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| 134 | struct ppdb_struct* user; /* linked list for user@server */ |
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| 135 | pool p; /* db-level data */ |
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| 136 | struct ppdb_struct* next; |
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| 137 | } _ppdb, *ppdb; |
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| 138 | |
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| 139 | ppdb ppdb_insert(ppdb db, jid id, xmlnode x); /* Inserts presence into the proxy */ |
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| 140 | xmlnode ppdb_primary(ppdb db, jid id); /* Fetches the matching primary presence for the id */ |
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| 141 | void ppdb_free(ppdb db); /* Frees the db and all entries */ |
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| 142 | xmlnode ppdb_get(ppdb db, jid id); /* Called successively to return each presence xmlnode */ |
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| 143 | /* for the id and children, returns NULL at the end */ |
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| 144 | |
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| 145 | |
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| 146 | /* --------------------------------------------------------- */ |
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| 147 | /* */ |
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| 148 | /* Simple Jabber Rate limit functions */ |
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| 149 | /* */ |
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| 150 | /* --------------------------------------------------------- */ |
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| 151 | typedef struct jlimit_struct |
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| 152 | { |
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| 153 | char *key; |
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| 154 | int start; |
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| 155 | int points; |
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| 156 | int maxt, maxp; |
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| 157 | pool p; |
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| 158 | } *jlimit, _jlimit; |
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| 159 | |
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| 160 | jlimit jlimit_new(int maxt, int maxp); |
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| 161 | void jlimit_free(jlimit r); |
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| 162 | int jlimit_check(jlimit r, char *key, int points); |
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| 163 | |
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| 164 | |
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| 165 | /* --------------------------------------------------------- */ |
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| 166 | /* */ |
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| 167 | /* Error structures & constants */ |
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| 168 | /* */ |
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| 169 | /* --------------------------------------------------------- */ |
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| 170 | typedef struct terror_struct |
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| 171 | { |
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| 172 | int code; |
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| 173 | char msg[64]; |
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| 174 | } terror; |
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| 175 | |
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| 176 | #define TERROR_BAD (terror){400,"Bad Request"} |
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| 177 | #define TERROR_AUTH (terror){401,"Unauthorized"} |
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| 178 | #define TERROR_PAY (terror){402,"Payment Required"} |
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| 179 | #define TERROR_FORBIDDEN (terror){403,"Forbidden"} |
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| 180 | #define TERROR_NOTFOUND (terror){404,"Not Found"} |
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| 181 | #define TERROR_NOTALLOWED (terror){405,"Not Allowed"} |
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| 182 | #define TERROR_NOTACCEPTABLE (terror){406,"Not Acceptable"} |
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| 183 | #define TERROR_REGISTER (terror){407,"Registration Required"} |
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| 184 | #define TERROR_REQTIMEOUT (terror){408,"Request Timeout"} |
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| 185 | #define TERROR_CONFLICT (terror){409,"Conflict"} |
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| 186 | |
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| 187 | #define TERROR_INTERNAL (terror){500,"Internal Server Error"} |
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| 188 | #define TERROR_NOTIMPL (terror){501,"Not Implemented"} |
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| 189 | #define TERROR_EXTERNAL (terror){502,"Remote Server Error"} |
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| 190 | #define TERROR_UNAVAIL (terror){503,"Service Unavailable"} |
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| 191 | #define TERROR_EXTTIMEOUT (terror){504,"Remote Server Timeout"} |
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| 192 | #define TERROR_DISCONNECTED (terror){510,"Disconnected"} |
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| 193 | |
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| 194 | /* --------------------------------------------------------- */ |
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| 195 | /* */ |
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| 196 | /* Namespace constants */ |
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| 197 | /* */ |
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| 198 | /* --------------------------------------------------------- */ |
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| 199 | #define NSCHECK(x,n) (j_strcmp(xmlnode_get_attrib(x,"xmlns"),n) == 0) |
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| 200 | |
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| 201 | #define NS_CLIENT "jabber:client" |
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| 202 | #define NS_SERVER "jabber:server" |
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| 203 | #define NS_AUTH "jabber:iq:auth" |
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| 204 | #define NS_REGISTER "jabber:iq:register" |
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| 205 | #define NS_ROSTER "jabber:iq:roster" |
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| 206 | #define NS_OFFLINE "jabber:x:offline" |
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| 207 | #define NS_AGENT "jabber:iq:agent" |
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| 208 | #define NS_AGENTS "jabber:iq:agents" |
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| 209 | #define NS_DELAY "jabber:x:delay" |
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| 210 | #define NS_VERSION "jabber:iq:version" |
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| 211 | #define NS_TIME "jabber:iq:time" |
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| 212 | #define NS_VCARD "vcard-temp" |
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| 213 | #define NS_PRIVATE "jabber:iq:private" |
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| 214 | #define NS_SEARCH "jabber:iq:search" |
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| 215 | #define NS_OOB "jabber:iq:oob" |
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| 216 | #define NS_XOOB "jabber:x:oob" |
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| 217 | #define NS_ADMIN "jabber:iq:admin" |
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| 218 | #define NS_FILTER "jabber:iq:filter" |
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| 219 | #define NS_AUTH_0K "jabber:iq:auth:0k" |
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| 220 | |
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| 221 | |
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| 222 | /* --------------------------------------------------------- */ |
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| 223 | /* */ |
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| 224 | /* Message Types */ |
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| 225 | /* */ |
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| 226 | /* --------------------------------------------------------- */ |
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| 227 | #define TMSG_NORMAL "normal" |
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| 228 | #define TMSG_ERROR "error" |
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| 229 | #define TMSG_CHAT "chat" |
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| 230 | #define TMSG_GROUPCHAT "groupchat" |
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| 231 | #define TMSG_HEADLINE "headline" |
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| 232 | |
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| 233 | |
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| 234 | /* --------------------------------------------------------- */ |
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| 235 | /* */ |
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| 236 | /* JUtil functions */ |
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| 237 | /* */ |
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| 238 | /* --------------------------------------------------------- */ |
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| 239 | xmlnode jutil_presnew(int type, char *to, char *status); /* Create a skeleton presence packet */ |
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| 240 | xmlnode jutil_iqnew(int type, char *ns); /* Create a skeleton iq packet */ |
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| 241 | xmlnode jutil_msgnew(char *type, char *to, char *subj, char *body); |
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| 242 | /* Create a skeleton message packet */ |
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| 243 | xmlnode jutil_header(char* xmlns, char* server); /* Create a skeleton stream packet */ |
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| 244 | int jutil_priority(xmlnode x); /* Determine priority of this packet */ |
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| 245 | void jutil_tofrom(xmlnode x); /* Swaps to/from fields on a packet */ |
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| 246 | xmlnode jutil_iqresult(xmlnode x); /* Generate a skeleton iq/result, given a iq/query */ |
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| 247 | char* jutil_timestamp(void); /* Get stringified timestamp */ |
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| 248 | void jutil_error(xmlnode x, terror E); /* Append an <error> node to x */ |
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| 249 | void jutil_delay(xmlnode msg, char *reason); /* Append a delay packet to msg */ |
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| 250 | char* jutil_regkey(char *key, char *seed); /* pass a seed to generate a key, pass the key again to validate (returns it) */ |
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| 251 | |
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| 252 | |
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| 253 | /* --------------------------------------------------------- */ |
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| 254 | /* */ |
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| 255 | /* JConn structures & functions */ |
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| 256 | /* */ |
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| 257 | /* --------------------------------------------------------- */ |
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| 258 | #define JCONN_STATE_OFF 0 |
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| 259 | #define JCONN_STATE_CONNECTED 1 |
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| 260 | #define JCONN_STATE_ON 2 |
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| 261 | #define JCONN_STATE_AUTH 3 |
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| 262 | |
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| 263 | typedef struct jconn_struct |
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| 264 | { |
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| 265 | /* Core structure */ |
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| 266 | pool p; /* Memory allocation pool */ |
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| 267 | int state; /* Connection state flag */ |
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| 268 | int fd; /* Connection file descriptor */ |
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| 269 | jid user; /* User info */ |
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| 270 | char *pass; /* User passwd */ |
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| 271 | |
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| 272 | /* Stream stuff */ |
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| 273 | int id; /* id counter for jab_getid() function */ |
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| 274 | char idbuf[9]; /* temporary storage for jab_getid() */ |
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| 275 | char *sid; /* stream id from server, for digest auth */ |
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| 276 | XML_Parser parser; /* Parser instance */ |
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| 277 | xmlnode current; /* Current node in parsing instance.. */ |
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| 278 | |
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| 279 | /* Event callback ptrs */ |
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| 280 | void (*on_state)(struct jconn_struct *j, int state); |
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| 281 | void (*on_packet)(struct jconn_struct *j, jpacket p); |
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| 282 | |
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| 283 | } *jconn, jconn_struct; |
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| 284 | |
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| 285 | typedef void (*jconn_state_h)(jconn j, int state); |
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| 286 | typedef void (*jconn_packet_h)(jconn j, jpacket p); |
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| 287 | |
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| 288 | |
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| 289 | jconn jab_new(char *user, char *pass); |
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| 290 | void jab_delete(jconn j); |
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| 291 | void jab_state_handler(jconn j, jconn_state_h h); |
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| 292 | void jab_packet_handler(jconn j, jconn_packet_h h); |
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| 293 | void jab_start(jconn j); |
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| 294 | void jab_stop(jconn j); |
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| 295 | |
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| 296 | int jab_getfd(jconn j); |
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| 297 | jid jab_getjid(jconn j); |
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| 298 | char *jab_getsid(jconn j); |
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| 299 | char *jab_getid(jconn j); |
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| 300 | |
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| 301 | void jab_send(jconn j, xmlnode x); |
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| 302 | void jab_send_raw(jconn j, const char *str); |
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| 303 | void jab_recv(jconn j); |
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| 304 | void jab_poll(jconn j, int timeout); |
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| 305 | |
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| 306 | char *jab_auth(jconn j); |
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| 307 | char *jab_reg(jconn j); |
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| 308 | |
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| 309 | |
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| 310 | |
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| 311 | #ifdef __cplusplus |
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| 312 | } |
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| 313 | #endif |
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| 314 | |
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| 315 | #endif /* INCL_JABBER_H */ |
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