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Diffstat (limited to 'protocols/jabber/jid.c')
| -rw-r--r-- | protocols/jabber/jid.c | 170 |
1 files changed, 170 insertions, 0 deletions
diff --git a/protocols/jabber/jid.c b/protocols/jabber/jid.c new file mode 100644 index 00000000..ed2b9ba1 --- /dev/null +++ b/protocols/jabber/jid.c @@ -0,0 +1,170 @@ +/* -------------------------------------------------------------------------- + * + * License + * + * The contents of this file are subject to the Jabber Open Source License + * Version 1.0 (the "JOSL"). You may not copy or use this file, in either + * source code or executable form, except in compliance with the JOSL. You + * may obtain a copy of the JOSL at http://www.jabber.org/ or at + * http://www.opensource.org/. + * + * Software distributed under the JOSL is distributed on an "AS IS" basis, + * WITHOUT WARRANTY OF ANY KIND, either express or implied. See the JOSL + * for the specific language governing rights and limitations under the + * JOSL. + * + * Copyrights + * + * Portions created by or assigned to Jabber.com, Inc. are + * Copyright (c) 1999-2002 Jabber.com, Inc. All Rights Reserved. Contact + * information for Jabber.com, Inc. is available at http://www.jabber.com/. + * + * Portions Copyright (c) 1998-1999 Jeremie Miller. + * + * Acknowledgements + * + * Special thanks to the Jabber Open Source Contributors for their + * suggestions and support of Jabber. + * + * Alternatively, the contents of this file may be used under the terms of the + * GNU General Public License Version 2 or later (the "GPL"), in which case + * the provisions of the GPL are applicable instead of those above. If you + * wish to allow use of your version of this file only under the terms of the + * GPL and not to allow others to use your version of this file under the JOSL, + * indicate your decision by deleting the provisions above and replace them + * with the notice and other provisions required by the GPL. If you do not + * delete the provisions above, a recipient may use your version of this file + * under either the JOSL or the GPL. + * + * + * --------------------------------------------------------------------------*/ + +#include "jabber.h" +#include <glib.h> + +static jid jid_safe(jid id) +{ + char *str; + + if(strlen(id->server) == 0 || strlen(id->server) > 255) + return NULL; + + /* lowercase the hostname, make sure it's valid characters */ + for(str = id->server; *str != '\0'; str++) + { + *str = tolower(*str); + if(!(isalnum(*str) || *str == '.' || *str == '-' || *str == '_')) return NULL; + } + + /* cut off the user */ + if(id->user != NULL && strlen(id->user) > 64) + id->user[64] = '\0'; + + /* check for low and invalid ascii characters in the username */ + if(id->user != NULL) + for(str = id->user; *str != '\0'; str++) + if(*str <= 32 || *str == ':' || *str == '@' || *str == '<' || *str == '>' || *str == '\'' || *str == '"' || *str == '&') return NULL; + + return id; +} + +jid jid_new(pool p, char *idstr) +{ + char *server, *resource, *type, *str; + jid id; + + if(p == NULL || idstr == NULL || strlen(idstr) == 0) + return NULL; + + /* user@server/resource */ + + str = pstrdup(p, idstr); + + id = pmalloco(p,sizeof(struct jid_struct)); + id->p = p; + + resource = strstr(str,"/"); + if(resource != NULL) + { + *resource = '\0'; + ++resource; + if(strlen(resource) > 0) + id->resource = resource; + }else{ + resource = str + strlen(str); /* point to end */ + } + + type = strstr(str,":"); + if(type != NULL && type < resource) + { + *type = '\0'; + ++type; + str = type; /* ignore the type: prefix */ + } + + server = strstr(str,"@"); + if(server == NULL || server > resource) + { /* if there's no @, it's just the server address */ + id->server = str; + }else{ + *server = '\0'; + ++server; + id->server = server; + if(strlen(str) > 0) + id->user = str; + } + + return jid_safe(id); +} + +char *jid_full(jid id) +{ + spool s; + + if(id == NULL) + return NULL; + + /* use cached copy */ + if(id->full != NULL) + return id->full; + + s = spool_new(id->p); + + if(id->user != NULL) + spooler(s, id->user,"@",s); + + spool_add(s, id->server); + + if(id->resource != NULL) + spooler(s, "/",id->resource,s); + + id->full = spool_print(s); + return id->full; +} + +/* local utils */ +static int _jid_nullstrcmp(char *a, char *b) +{ + if(a == NULL && b == NULL) return 0; + if(a == NULL || b == NULL) return -1; + return strcmp(a,b); +} +static int _jid_nullstrcasecmp(char *a, char *b) +{ + if(a == NULL && b == NULL) return 0; + if(a == NULL || b == NULL) return -1; + return g_strcasecmp(a,b); +} + +/* suggested by Anders Qvist <quest@valdez.netg.se> */ +int jid_cmpx(jid a, jid b, int parts) +{ + if(a == NULL || b == NULL) + return -1; + + if(parts & JID_RESOURCE && _jid_nullstrcmp(a->resource, b->resource) != 0) return -1; + if(parts & JID_USER && _jid_nullstrcasecmp(a->user, b->user) != 0) return -1; + if(parts & JID_SERVER && _jid_nullstrcmp(a->server, b->server) != 0) return -1; + + return 0; +} |