privacy.c

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#include "../tm/tm_load.h"
#include "mod.h"
#include "sip.h"
#include "privacy.h"

extern struct tm_binds tmb;

static str asserted_identity={"P-Asserted-Identity",19};
static str privacy={"Privacy",7};

int apply_privacy_id(struct sip_msg* msg){
    struct hdr_field *hdr;

    LOG(L_DBG, "DBG:"M_NAME": apply_privacy_id\n");
    hdr = cscf_get_next_header(msg,asserted_identity,NULL);
    if (!hdr) return CSCF_RETURN_FALSE;
    do {
        cscf_del_header(msg,hdr);
        hdr=cscf_get_next_header(msg,asserted_identity,hdr);
    } while (hdr);

    return CSCF_RETURN_TRUE;
}

void privacy_reply_cb(struct cell *t, int type, struct tmcb_params *ps) {
    S_apply_privacy(ps->rpl, 0, 0);
}

int S_apply_privacy(struct sip_msg* msg, char* str1, char* str2) {
    char *c;
    int ret = CSCF_RETURN_FALSE;
    
    str privacy_content = cscf_get_headers_content(msg,privacy);

    if (!privacy_content.len){ 
        ret = CSCF_RETURN_FALSE;
        goto done;
    }
    
    LOG(L_DBG, "DBG:"M_NAME":S_apply_privacy\n");
    c = strtok(privacy_content.s," \t\r\n;,");
    while (c){
        if (strlen(c)==2 && strncasecmp(c,"id",2)==0){
            ret = apply_privacy_id(msg);
            break;
        }
        c = strtok(0," \t\r\n;,");
    }
    
done:   
    if (privacy_content.s) pkg_free(privacy_content.s);
    return ret;
}

int S_privacy_hook(struct sip_msg* msg, char* str1, char* str2) {
    unsigned int a,b;
    
    cscf_get_transaction(msg,&a,&b);
    tmb.register_tmcb(msg,0,TMCB_RESPONSE_IN,privacy_reply_cb,0);
    
    return CSCF_RETURN_TRUE;
}

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