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xcap_server.c
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xcap_server.c
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/*
* xcap_server module - builtin XCAP server
*
* Copyright (C) 2010 Daniel-Constantin Mierla (asipto.com)
*
* This file is part of Kamailio, a free SIP server.
*
* Kamailio is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version
*
* Kamailio is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
*
*/
#include <stdio.h>
#include <string.h>
#include <stdlib.h>
#include <sys/types.h>
#include <unistd.h>
#include <fcntl.h>
#include <time.h>
#include "../../lib/srdb1/db.h"
#include "../../core/pt.h"
#include "../../core/sr_module.h"
#include "../../core/dprint.h"
#include "../../core/error.h"
#include "../../core/ut.h"
#include "../../core/mem/mem.h"
#include "../../core/data_lump.h"
#include "../../core/data_lump_rpl.h"
#include "../../core/mod_fix.h"
#include "../../core/parser/parse_uri.h"
#include "../../modules/xcap_client/xcap_callbacks.h"
#include "../../modules/sl/sl.h"
#include "../../core/strutils.h"
#include "../../core/ip_addr.h"
#include "../../core/kemi.h"
#include "xcap_misc.h"
MODULE_VERSION
#define XCAP_TABLE_VERSION 4
static int xcaps_put_db(str* user, str *domain, xcap_uri_t *xuri, str *etag,
str* doc);
static int xcaps_get_db_doc(str* user, str *domain, xcap_uri_t *xuri,
str *doc);
static int xcaps_get_db_etag(str* user, str *domain, xcap_uri_t *xuri,
str *etag);
static int xcaps_del_db(str* user, str *domain, xcap_uri_t *xuri);
static int w_xcaps_put(sip_msg_t* msg, char* puri, char* ppath,
char* pbody);
static int w_xcaps_get(sip_msg_t* msg, char* puri, char* ppath);
static int w_xcaps_del(sip_msg_t* msg, char* puri, char* ppath);
static int fixup_xcaps_put(void** param, int param_no);
static int check_preconditions(sip_msg_t *msg, str etag_hdr);
static int check_match_header(str body, str *etag);
static int mod_init(void);
static int child_init(int rank);
static void destroy(void);
int xcaps_xpath_ns_param(modparam_t type, void *val);
int xcaps_path_get_auid_type(str *path);
int xcaps_generate_etag_hdr(str *etag);
static str xcaps_db_table = str_init("xcap");
static str xcaps_db_url = str_init(DEFAULT_DB_URL);
static int xcaps_init_time = 0;
static int xcaps_etag_counter = 1;
str xcaps_root = str_init("/xcap-root/");
static int xcaps_directory_scheme = -1;
static str xcaps_directory_hostname = {0, 0};
static str xcaps_buf = {0, 8192};
#define XCAPS_HDR_SIZE 128
static char xcaps_hdr_buf[XCAPS_HDR_SIZE];
static str str_id_col = str_init("id");
static str str_source_col = str_init("source");
static str str_doc_col = str_init("doc");
static str str_etag_col = str_init("etag");
static str str_username_col = str_init("username");
static str str_domain_col = str_init("domain");
static str str_doc_type_col = str_init("doc_type");
static str str_doc_uri_col = str_init("doc_uri");
static str str_port_col = str_init("port");
/* database connection */
db1_con_t *xcaps_db = NULL;
db_func_t xcaps_dbf;
/** SL API structure */
sl_api_t slb;
static pv_export_t mod_pvs[] = {
{ {"xcapuri", sizeof("xcapuri")-1}, PVT_OTHER, pv_get_xcap_uri,
pv_set_xcap_uri, pv_parse_xcap_uri_name, 0, 0, 0 },
{ {0, 0}, 0, 0, 0, 0, 0, 0, 0 }
};
static param_export_t params[] = {
{ "db_url", PARAM_STR, &xcaps_db_url },
{ "xcap_table", PARAM_STR, &xcaps_db_table },
{ "xcap_root", PARAM_STR, &xcaps_root },
{ "buf_size", INT_PARAM, &xcaps_buf.len },
{ "xml_ns", PARAM_STRING|USE_FUNC_PARAM, (void*)xcaps_xpath_ns_param },
{ "directory_scheme", INT_PARAM, &xcaps_directory_scheme },
{ "directory_hostname", PARAM_STR, &xcaps_directory_hostname },
{ 0, 0, 0 }
};
static cmd_export_t cmds[]={
{"xcaps_put", (cmd_function)w_xcaps_put, 3,
fixup_xcaps_put, 0, REQUEST_ROUTE},
{"xcaps_get", (cmd_function)w_xcaps_get, 2,
fixup_xcaps_put, 0, REQUEST_ROUTE},
{"xcaps_del", (cmd_function)w_xcaps_del, 2,
fixup_xcaps_put, 0, REQUEST_ROUTE},
{0,0,0,0,0,0}
};
/** module exports */
struct module_exports exports= {
"xcap_server", /* module name */
DEFAULT_DLFLAGS, /* dlopen flags */
cmds, /* exported functions */
params, /* exported parameters */
0, /* exported rpc functions */
mod_pvs, /* exported pseudo-variables */
0, /* response handling function */
mod_init, /* module initialization function */
child_init, /* per-child init function */
destroy /* destroy function */
};
/**
* init module function
*/
static int mod_init(void)
{
if (xcaps_directory_scheme < -1 || xcaps_directory_scheme > 1)
{
LM_ERR("invalid xcaps_directory_scheme\n");
return -1;
}
if(xcaps_buf.len<=0)
{
LM_ERR("invalid buffer size\n");
return -1;
}
xcaps_buf.s = (char*)pkg_malloc(xcaps_buf.len+1);
if(xcaps_buf.s==NULL)
{
PKG_MEM_ERROR;
return -1;
}
/* binding to mysql module */
if (db_bind_mod(&xcaps_db_url, &xcaps_dbf))
{
LM_ERR("Database module not found\n");
return -1;
}
if (!DB_CAPABILITY(xcaps_dbf, DB_CAP_ALL)) {
LM_ERR("Database module does not implement all functions"
" needed by the module\n");
return -1;
}
xcaps_db = xcaps_dbf.init(&xcaps_db_url);
if (xcaps_db==NULL)
{
LM_ERR("connecting to database\n");
return -1;
}
if(db_check_table_version(&xcaps_dbf, xcaps_db, &xcaps_db_table,
XCAP_TABLE_VERSION) < 0) {
DB_TABLE_VERSION_ERROR(xcaps_db_table);
xcaps_dbf.close(xcaps_db);
xcaps_db = NULL;
return -1;
}
xcaps_dbf.close(xcaps_db);
xcaps_db = NULL;
/* bind the SL API */
if (sl_load_api(&slb)!=0) {
LM_ERR("cannot bind to SL API\n");
return -1;
}
xcaps_init_time = (int)time(NULL);
return 0;
}
/**
*
*/
static int child_init(int rank)
{
if (rank==PROC_INIT || rank==PROC_MAIN || rank==PROC_TCP_MAIN)
return 0; /* do nothing for the main process */
if((xcaps_db = xcaps_dbf.init(&xcaps_db_url))==NULL)
{
LM_ERR("cannot connect to db\n");
return -1;
}
return 0;
}
/**
*
*/
static void destroy(void)
{
if(xcaps_db != NULL)
xcaps_dbf.close(xcaps_db);
}
/**
*
*/
static int xcaps_send_reply(sip_msg_t *msg, int code, str *reason,
str *hdrs, str *ctype, str *body)
{
str tbuf;
if(hdrs && hdrs->len>0)
{
if (add_lump_rpl(msg, hdrs->s, hdrs->len, LUMP_RPL_HDR) == 0)
{
LM_ERR("failed to insert extra-headers lump\n");
return -1;
}
}
if(ctype && ctype->len>0)
{
/* add content-type */
tbuf.len=sizeof("Content-Type: ") - 1 + ctype->len + CRLF_LEN;
tbuf.s=pkg_malloc(sizeof(char)*(tbuf.len));
if (tbuf.len==0)
{
PKG_MEM_ERROR;
return -1;
}
memcpy(tbuf.s, "Content-Type: ", sizeof("Content-Type: ") - 1);
memcpy(tbuf.s+sizeof("Content-Type: ") - 1, ctype->s, ctype->len);
memcpy(tbuf.s+sizeof("Content-Type: ") - 1 + ctype->len,
CRLF, CRLF_LEN);
if (add_lump_rpl(msg, tbuf.s, tbuf.len, LUMP_RPL_HDR) == 0)
{
LM_ERR("failed to insert content-type lump\n");
pkg_free(tbuf.s);
return -1;
}
pkg_free(tbuf.s);
}
if(body && body->len>0)
{
if (add_lump_rpl(msg, body->s, body->len, LUMP_RPL_BODY) == 0)
{
LM_ERR("Error while adding reply lump\n");
return -1;
}
}
if (slb.freply(msg, code, reason) < 0)
{
LM_ERR("Error while sending reply\n");
return -1;
}
return 0;
}
/**
*
*/
int xcaps_xpath_hack(str *buf, int type)
{
char *match;
char *repl;
char *p;
char *start;
char *end;
if(buf==NULL || buf->len <=10)
return 0;
if(type==0) {
match = " xmlns=";
repl = " x____=";
} else {
match = " x____=";
repl = " xmlns=";
}
start = buf->s;
end = buf->s + buf->len - 10;
while((p = stre_search_strz(start, end, match))!=NULL) {
memcpy(p, repl, 7);
start = p + 7;
}
return 0;
}
/**
*
*/
static int xcaps_put_db(str* user, str *domain, xcap_uri_t *xuri, str *etag,
str* doc)
{
db_key_t qcols[9], rcols[2], ucols[5];
db_val_t qvals[9], uvals[5];
db1_res_t *res = NULL;
int ncols = 0, num_ucols = 0, nrows = 0;
if(xcaps_check_doc_validity(doc)<0)
{
LM_ERR("invalid xml doc to insert in database\n");
goto error;
}
qcols[ncols] = &str_username_col;
qvals[ncols].type = DB1_STR;
qvals[ncols].nul = 0;
qvals[ncols].val.str_val = *user;
ncols++;
qcols[ncols] = &str_domain_col;
qvals[ncols].type = DB1_STR;
qvals[ncols].nul = 0;
qvals[ncols].val.str_val = *domain;
ncols++;
qcols[ncols] = &str_doc_type_col;
qvals[ncols].type = DB1_INT;
qvals[ncols].nul = 0;
qvals[ncols].val.int_val= xuri->type;
ncols++;
qcols[ncols] = &str_doc_uri_col;
qvals[ncols].type = DB1_STR;
qvals[ncols].nul = 0;
qvals[ncols].val.str_val= xuri->adoc;
ncols++;
rcols[0] = &str_id_col;
if (xcaps_dbf.use_table(xcaps_db, &xcaps_db_table) < 0)
{
LM_ERR("in use_table-[table]= %.*s\n", xcaps_db_table.len,
xcaps_db_table.s);
goto error;
}
if (xcaps_dbf.query(xcaps_db, qcols, 0, qvals, rcols, ncols, 1, 0, &res) < 0)
{
LM_ERR("in sql query\n");
goto error;
}
nrows = RES_ROW_N(res);
xcaps_dbf.free_result(xcaps_db, res);
if (nrows == 0)
{
qcols[ncols] = &str_doc_col;
qvals[ncols].type = DB1_BLOB;
qvals[ncols].nul = 0;
qvals[ncols].val.str_val= *doc;
ncols++;
qcols[ncols] = &str_etag_col;
qvals[ncols].type = DB1_STR;
qvals[ncols].nul = 0;
qvals[ncols].val.str_val= *etag;
ncols++;
qcols[ncols] = &str_source_col;
qvals[ncols].type = DB1_INT;
qvals[ncols].nul = 0;
qvals[ncols].val.int_val = 0;
ncols++;
qcols[ncols] = &str_port_col;
qvals[ncols].type = DB1_INT;
qvals[ncols].nul = 0;
qvals[ncols].val.int_val = 0;
ncols++;
if(xcaps_dbf.insert(xcaps_db, qcols, qvals, ncols)< 0)
{
LM_ERR("in sql insert\n");
goto error;
}
}
else if (nrows == 1)
{
ucols[num_ucols] = &str_doc_col;
uvals[num_ucols].type = DB1_BLOB;
uvals[num_ucols].nul = 0;
uvals[num_ucols].val.str_val= *doc;
num_ucols++;
ucols[num_ucols] = &str_etag_col;
uvals[num_ucols].type = DB1_STR;
uvals[num_ucols].nul = 0;
uvals[num_ucols].val.str_val= *etag;
num_ucols++;
ucols[num_ucols] = &str_source_col;
uvals[num_ucols].type = DB1_INT;
uvals[num_ucols].nul = 0;
uvals[num_ucols].val.int_val = 0;
num_ucols++;
ucols[num_ucols] = &str_port_col;
uvals[num_ucols].type = DB1_INT;
uvals[num_ucols].nul = 0;
uvals[num_ucols].val.int_val = 0;
num_ucols++;
if (xcaps_dbf.update(xcaps_db, qcols, 0, qvals, ucols, uvals, ncols, num_ucols) < 0)
{
LM_ERR("in sql update\n");
goto error;
}
}
else
{
LM_ERR("found %d copies of the same document in XCAP Server\n", nrows);
goto error;
}
return 0;
error:
return -1;
}
static str xcaps_str_ok = {"OK", 2};
static str xcaps_str_srverr = {"Server error", 12};
static str xcaps_str_notfound = {"Not found", 9};
static str xcaps_str_precon = {"Precondition Failed", 19};
static str xcaps_str_notmod = {"Not Modified", 12};
static str xcaps_str_notallowed = {"Method Not Allowed", 18};
static str xcaps_str_notimplemented = {"Not Implemented", 15};
static str xcaps_str_appxml = {"application/xml", 15};
static str xcaps_str_apprlxml = {"application/resource-lists+xml", 30};
static str xcaps_str_apprsxml = {"application/rls-services+xml", 28};
#if 0
static str xcaps_str_nocontent = {"No content", 10};
static str xcaps_str_appxcxml = {"application/xcap-caps+xml", 25};
static str xcaps_str_appsexml = {"application/vnd.oma.search+xml", 30};
#endif
static str xcaps_str_appapxml = {"application/auth-policy+xml", 27};
static str xcaps_str_appupxml = {"application/vnd.oma.user-profile+xml", 36};
static str xcaps_str_apppcxml = {"application/vnd.oma.pres-content+xml", 36};
static str xcaps_str_apppdxml = {"application/pidf+xml", 20};
static str xcaps_str_appdrxml = {"application/vnd.oma.xcap-directory+xml", 38};
/**
*
*/
static int ki_xcaps_put(sip_msg_t* msg, str* uri, str* path,
str* pbody)
{
struct sip_uri turi;
str body = {0, 0};
str etag = {0, 0};
str etag_hdr = {0, 0};
str tbuf;
str nbuf = {0, 0};
str allow = {0, 0};
xcap_uri_t xuri;
if(uri->s==NULL || uri->len == 0)
{
LM_ERR("invalid uri parameter\n");
goto error;
}
if(path->s==NULL || path->len == 0)
{
LM_ERR("invalid path parameter\n");
return -1;
}
if(parse_uri(uri->s, uri->len, &turi)!=0)
{
LM_ERR("parsing uri parameter [%.*s]\n", uri->len, uri->s);
goto error;
}
if(xcap_parse_uri(path, &xcaps_root, &xuri)<0)
{
LM_ERR("cannot parse xcap uri [%.*s]\n", path->len, path->s);
goto error;
}
switch(xuri.type)
{
case DIRECTORY:
case XCAP_CAPS:
allow.s = xcaps_hdr_buf;
allow.len = snprintf(allow.s, XCAPS_HDR_SIZE, "Allow: GET\r\n");
xcaps_send_reply(msg, 405, &xcaps_str_notallowed, &allow, NULL, NULL);
break;
case SEARCH:
allow.s = xcaps_hdr_buf;
allow.len = snprintf(allow.s, XCAPS_HDR_SIZE, "Allow: POST\r\n");
xcaps_send_reply(msg, 405, &xcaps_str_notallowed, &allow, NULL, NULL);
break;
default:
if(pbody->len <= 0)
{
LM_ERR("invalid body parameter\n");
goto error;
}
body.s = (char*)pkg_malloc(pbody->len+1);
if(body.s==NULL)
{
PKG_MEM_ERROR;
goto error;
}
memcpy(body.s, pbody->s, pbody->len);
body.len = pbody->len;
body.s[body.len] = '\0';
xcaps_get_db_etag(&turi.user, &turi.host, &xuri, &etag);
if(check_preconditions(msg, etag)!=1)
{
xcaps_send_reply(msg, 412, &xcaps_str_precon, NULL, NULL, NULL);
pkg_free(body.s);
return -2;
}
if(xuri.nss!=NULL && xuri.node.len>0)
{
/* partial document upload
* - fetch, update, delete and store
*/
if(xcaps_get_db_doc(&turi.user, &turi.host, &xuri, &tbuf) != 0)
{
LM_ERR("could not fetch xcap document\n");
goto error;
}
if(xcaps_xpath_hack(&tbuf, 0)<0)
{
LM_ERR("could not hack xcap document\n");
goto error;
}
if(xcaps_xpath_set(&tbuf, &xuri.node, &body, &nbuf)<0)
{
LM_ERR("could not update xcap document\n");
goto error;
}
if(nbuf.len<=0)
{
LM_ERR("no new content\n");
goto error;
}
pkg_free(body.s);
body = nbuf;
if(xcaps_xpath_hack(&body, 1)<0)
{
LM_ERR("could not hack xcap document\n");
goto error;
}
}
if(xcaps_generate_etag_hdr(&etag_hdr)<0)
{
LM_ERR("could not generate etag\n");
goto error;
}
etag.s = etag_hdr.s + 7; /* 'ETag: "' */
etag.len = etag_hdr.len - 10; /* 'ETag: " "\r\n' */
if(xcaps_put_db(&turi.user, &turi.host,
&xuri, &etag, &body)<0)
{
LM_ERR("could not store document\n");
goto error;
}
xcaps_send_reply(msg, 200, &xcaps_str_ok, &etag_hdr,
NULL, NULL);
if(body.s!=NULL)
pkg_free(body.s);
break;
}
return 1;
error:
xcaps_send_reply(msg, 500, &xcaps_str_srverr, NULL, NULL, NULL);
if(body.s!=NULL)
pkg_free(body.s);
return -1;
}
/**
*
*/
static int w_xcaps_put(sip_msg_t* msg, char* puri, char* ppath,
char* pbody)
{
str uri;
str path;
str body = {0, 0};
pv_elem_t *xm;
if(puri==0 || ppath==0 || pbody==0)
{
LM_ERR("invalid parameters\n");
goto error;
}
if(fixup_get_svalue(msg, (gparam_p)puri, &uri)!=0)
{
LM_ERR("unable to get uri\n");
goto error;
}
if(fixup_get_svalue(msg, (gparam_p)ppath, &path)!=0)
{
LM_ERR("unable to get path\n");
goto error;
}
xm = (pv_elem_t*)pbody;
body.len = xcaps_buf.len - 1;
if(pv_printf(msg, xm, xcaps_buf.s, &body.len)<0)
{
LM_ERR("unable to get body\n");
goto error;
}
body.s = xcaps_buf.s;
return ki_xcaps_put(msg, &uri, &path, &body);
error:
return -1;
}
/**
*
*/
static int xcaps_get_db_doc(str* user, str *domain, xcap_uri_t *xuri, str *doc)
{
db_key_t qcols[3];
db_val_t qvals[3];
int ncols = 0;
db_key_t rcols[3];
int nrcols = 0;
db1_res_t* db_res = NULL;
str s;
/* returned cols from table xcap*/
rcols[nrcols] = &str_doc_col;
nrcols++;
/* query cols in xcap table*/
qcols[ncols] = &str_username_col;
qvals[ncols].type = DB1_STR;
qvals[ncols].nul = 0;
qvals[ncols].val.str_val = *user;
ncols++;
qcols[ncols] = &str_domain_col;
qvals[ncols].type = DB1_STR;
qvals[ncols].nul = 0;
qvals[ncols].val.str_val = *domain;
ncols++;
qcols[ncols] = &str_doc_uri_col;
qvals[ncols].type = DB1_STR;
qvals[ncols].nul = 0;
qvals[ncols].val.str_val= xuri->adoc;
ncols++;
if (xcaps_dbf.use_table(xcaps_db, &xcaps_db_table) < 0)
{
LM_ERR("in use_table-[table]= %.*s\n", xcaps_db_table.len,
xcaps_db_table.s);
goto error;
}
if(xcaps_dbf.query(xcaps_db, qcols, NULL, qvals, rcols,
ncols, nrcols, NULL, &db_res)< 0)
{
LM_ERR("in sql query\n");
goto error;
}
if (RES_ROW_N(db_res) <= 0)
{
LM_DBG("no document\n");
goto notfound;
}
/* doc */
switch(RES_ROWS(db_res)[0].values[0].type)
{
case DB1_STRING:
s.s=(char*)RES_ROWS(db_res)[0].values[0].val.string_val;
s.len=strlen(s.s);
break;
case DB1_STR:
s.len=RES_ROWS(db_res)[0].values[0].val.str_val.len;
s.s=(char*)RES_ROWS(db_res)[0].values[0].val.str_val.s;
break;
case DB1_BLOB:
s.len=RES_ROWS(db_res)[0].values[0].val.blob_val.len;
s.s=(char*)RES_ROWS(db_res)[0].values[0].val.blob_val.s;
break;
default:
s.len=0;
s.s=NULL;
}
if(s.len==0)
{
LM_ERR("no xcap doc in db record\n");
goto error;
}
if(s.len>xcaps_buf.len-1)
{
LM_ERR("xcap doc buffer overflow\n");
goto error;
}
doc->len = s.len;
doc->s = xcaps_buf.s;
memcpy(doc->s, s.s, s.len);
doc->s[doc->len] = '\0';
if(xcaps_check_doc_validity(doc)<0)
{
LM_ERR("invalid xml doc retrieved from database\n");
goto error;
}
xcaps_dbf.free_result(xcaps_db, db_res);
return 0;
notfound:
xcaps_dbf.free_result(xcaps_db, db_res);
return 1;
error:
if(db_res!=NULL)
xcaps_dbf.free_result(xcaps_db, db_res);
return -1;
}
/**
* get the etag from database record for (user@domain, xuri)
* - return: -1 error; 0 - found; 1 - not found
*
*/
static int xcaps_get_db_etag(str* user, str *domain, xcap_uri_t *xuri, str *etag)
{
db_key_t qcols[3];
db_val_t qvals[3];
int ncols = 0;
db_key_t rcols[3];
int nrcols = 0;
db1_res_t* db_res = NULL;
str s;
/* returned cols from xcap table*/
rcols[nrcols] = &str_etag_col;
nrcols++;
/* query cols in xcap table*/
qcols[ncols] = &str_username_col;
qvals[ncols].type = DB1_STR;
qvals[ncols].nul = 0;
qvals[ncols].val.str_val = *user;
ncols++;
qcols[ncols] = &str_domain_col;
qvals[ncols].type = DB1_STR;
qvals[ncols].nul = 0;
qvals[ncols].val.str_val = *domain;
ncols++;
qcols[ncols] = &str_doc_uri_col;
qvals[ncols].type = DB1_STR;
qvals[ncols].nul = 0;
qvals[ncols].val.str_val= xuri->adoc;
ncols++;
if (xcaps_dbf.use_table(xcaps_db, &xcaps_db_table) < 0)
{
LM_ERR("in use_table-[table]= %.*s\n", xcaps_db_table.len,
xcaps_db_table.s);
goto error;
}
if(xcaps_dbf.query(xcaps_db, qcols, NULL, qvals, rcols,
ncols, nrcols, NULL, &db_res)< 0)
{
LM_ERR("in sql query\n");
goto error;
}
if (RES_ROW_N(db_res) <= 0)
{
LM_DBG("no document\n");
goto notfound;
}
/* etag */
switch(RES_ROWS(db_res)[0].values[0].type)
{
case DB1_STRING:
s.s=(char*)RES_ROWS(db_res)[0].values[0].val.string_val;
s.len=strlen(s.s);
break;
case DB1_STR:
s.len=RES_ROWS(db_res)[0].values[0].val.str_val.len;
s.s=(char*)RES_ROWS(db_res)[0].values[0].val.str_val.s;
break;
case DB1_BLOB:
s.len=RES_ROWS(db_res)[0].values[0].val.blob_val.len;
s.s=(char*)RES_ROWS(db_res)[0].values[0].val.blob_val.s;
break;
default:
s.len=0;
s.s=NULL;
}
if(s.len==0)
{
LM_ERR("no etag in db record\n");
goto error;
}
etag->len = snprintf(xcaps_hdr_buf, XCAPS_HDR_SIZE,
"ETag: \"%.*s\"\r\n", s.len, s.s);
if(etag->len < 0)
{
LM_ERR("error printing etag hdr\n ");
goto error;
}
if(etag->len >= XCAPS_HDR_SIZE)
{
LM_ERR("etag buffer overflow\n");
goto error;
}
etag->s = xcaps_hdr_buf;
etag->s[etag->len] = '\0';
xcaps_dbf.free_result(xcaps_db, db_res);
return 0;
notfound:
xcaps_dbf.free_result(xcaps_db, db_res);
return 1;
error:
if(db_res!=NULL)
xcaps_dbf.free_result(xcaps_db, db_res);
return -1;
}
static int xcaps_get_directory(struct sip_msg *msg, str *user, str *domain, str *directory)
{
db_key_t qcols[2];
db_val_t qvals[2], *values;
db_key_t rcols[3];
db_row_t *rows;
db1_res_t* db_res = NULL;
int n_qcols = 0, n_rcols = 0;
int i, cur_type = 0, cur_pos = 0;
int doc_type_col, doc_uri_col, etag_col;
str auid_string = {0, 0};
struct hdr_field *hdr = msg->headers;
str server_name = {0, 0};
qcols[n_qcols] = &str_username_col;
qvals[n_qcols].type = DB1_STR;
qvals[n_qcols].nul = 0;
qvals[n_qcols].val.str_val = *user;
n_qcols++;
qcols[n_qcols] = &str_domain_col;
qvals[n_qcols].type = DB1_STR;
qvals[n_qcols].nul = 0;
qvals[n_qcols].val.str_val = *domain;
n_qcols++;
rcols[doc_type_col = n_rcols++] = &str_doc_type_col;
rcols[doc_uri_col = n_rcols++] = &str_doc_uri_col;
rcols[etag_col = n_rcols++] = &str_etag_col;
if (xcaps_dbf.use_table(xcaps_db, &xcaps_db_table) < 0)
{
LM_ERR("in use_table-[table]= %.*s\n", xcaps_db_table.len,
xcaps_db_table.s);
goto error;
}
if (xcaps_dbf.query(xcaps_db, qcols, 0, qvals, rcols, n_qcols,
n_rcols, &str_doc_type_col, &db_res) < 0)
{
LM_ERR("in sql query\n");
goto error;
}
if (db_res == NULL)
goto error;
directory->s = xcaps_buf.s;
directory->len = 0;
directory->len += snprintf(directory->s + directory->len,
xcaps_buf.len - directory->len,
"<?xml version=\"1.0\" encoding=\"UTF-8\"?>\r\n"
"<xcap-directory xmlns=\"urn:oma:xml:xdm:xcap-directory\">\r\n");
rows = RES_ROWS(db_res);
for (i = 0; i < RES_ROW_N(db_res); i++)
{
values = ROW_VALUES(&rows[i]);
if (cur_type != VAL_INT(&values[doc_type_col]))
{
if (cur_type != 0)
{
directory->len += snprintf(directory->s + directory->len,
xcaps_buf.len - directory->len,
"</folder>\r\n");
}
cur_type = VAL_INT(&values[doc_type_col]);
memset(&auid_string, 0, sizeof(str));
while(xcaps_auid_list[cur_pos].auid.s != NULL)
{
if (xcaps_auid_list[cur_pos].type == cur_type)
{
auid_string.s = xcaps_auid_list[cur_pos].auid.s;
auid_string.len = xcaps_auid_list[cur_pos].auid.len;
break;
}
cur_pos++;
}
if (auid_string.s == NULL)
{
goto error;
}
directory->len += snprintf(directory->s + directory->len,
xcaps_buf.len - directory->len,
"<folder auid=\"%.*s\">\r\n",
auid_string.len, auid_string.s);
}
switch(xcaps_directory_scheme)
{
case -1:
directory->len += snprintf(directory->s + directory->len,
xcaps_buf.len - directory->len,
"<entry uri=\"%s://", msg->rcv.proto == PROTO_TLS ? "https" : "http");
break;
case 0:
directory->len += snprintf(directory->s + directory->len,
xcaps_buf.len - directory->len,
"<entry uri=\"http://");
break;
case 1:
directory->len += snprintf(directory->s + directory->len,
xcaps_buf.len - directory->len,
"<entry uri=\"https://");
break;