Module: kamailio Branch: master Commit: d7972d83b3f12f64d4f70d8e6eacb88ec34648f1 URL: https://github.com/kamailio/kamailio/commit/d7972d83b3f12f64d4f70d8e6eacb88… Author: Daniel-Constantin Mierla &lt;miconda(a)gmail.com&gt; Committer: Daniel-Constantin Mierla &lt;miconda(a)gmail.com&gt; Date: 2017-07-07T14:03:52+02:00 textops: new function remove_hf_exp(match, skip) - remove header fields that do not match regex ''skip', but match regex 'match' --- Modified: src/modules/textops/textops.c --- Diff: https://github.com/kamailio/kamailio/commit/d7972d83b3f12f64d4f70d8e6eacb88… Patch: https://github.com/kamailio/kamailio/commit/d7972d83b3f12f64d4f70d8e6eacb88… --- diff --git a/src/modules/textops/textops.c b/src/modules/textops/textops.c index cd116a8fe9..cd32f0074a 100644 --- a/src/modules/textops/textops.c +++ b/src/modules/textops/textops.c @@ -129,6 +129,7 @@ static int cmp_str_f(struct sip_msg *msg, char *str1, char *str2 ); static int cmp_istr_f(struct sip_msg *msg, char *str1, char *str2 ); static int starts_with_f(struct sip_msg *msg, char *str1, char *str2 ); static int remove_hf_re_f(struct sip_msg* msg, char* key, char* foo); +static int remove_hf_exp_f(sip_msg_t* msg, char* ematch, char* eskip); static int is_present_hf_re_f(struct sip_msg* msg, char* key, char* foo); static int is_audio_on_hold_f(struct sip_msg *msg, char *str1, char *str2 ); static int fixup_substre(void**, int); @@ -207,6 +208,9 @@ static cmd_export_t cmds[]={ {"remove_hf_re", (cmd_function)remove_hf_re_f, 1, fixup_regexp_null, fixup_free_regexp_null, ANY_ROUTE}, + {"remove_hf_exp", (cmd_function)remove_hf_exp_f, 1, + fixup_regexp_regexp, fixup_free_regexp_regexp, + ANY_ROUTE}, {"is_present_hf", (cmd_function)is_present_hf_f, 1, hname_fixup, free_hname_fixup, ANY_ROUTE}, @@ -1052,16 +1056,14 @@ int remove_hf_f(struct sip_msg* msg, char* str_hf, char* foo) return cnt==0 ? -1 : 1; } -static int remove_hf_re_f(struct sip_msg* msg, char* key, char* foo) +static int remove_hf_re(sip_msg_t* msg, regex_t *re) { struct hdr_field *hf; struct lump* l; int cnt; - regex_t *re; char c; regmatch_t pmatch; - re = (regex_t*)key; cnt=0; /* we need to be sure we have seen all HFs */ @@ -1091,6 +1093,59 @@ static int remove_hf_re_f(struct sip_msg* msg, char* key, char* foo) return cnt==0 ? -1 : 1; } +static int remove_hf_re_f(struct sip_msg* msg, char* key, char* foo) +{ + return remove_hf_re(msg, (regex_t*)key); +} + +static int remove_hf_exp_re(sip_msg_t* msg, regex_t *mre, regex_t *sre) +{ + struct hdr_field *hf; + struct lump* l; + int cnt; + char c; + regmatch_t pmatch; + + cnt=0; + + /* we need to be sure we have seen all HFs */ + if(parse_headers(msg, HDR_EOH_F, 0)<0) { + LM_ERR("error while parsing message headers\n"); + return -1; + } + + for (hf=msg->headers; hf; hf=hf->next) + { + c = hf->name.s[hf->name.len]; + hf->name.s[hf->name.len] = '\0'; + if (regexec(sre, hf->name.s, 1, &pmatch, 0)==0) + { + hf->name.s[hf->name.len] = c; + continue; + } + if (regexec(mre, hf->name.s, 1, &pmatch, 0)!=0) + { + hf->name.s[hf->name.len] = c; + continue; + } + hf->name.s[hf->name.len] = c; + l=del_lump(msg, hf->name.s-msg->buf, hf->len, 0); + if (l==0) + { + LM_ERR("cannot remove header\n"); + return -1; + } + cnt++; + } + + return cnt==0 ? -1 : 1; +} + +static int remove_hf_exp_f(struct sip_msg* msg, char* ematch, char* eskip) +{ + return remove_hf_exp_re(msg, (regex_t*)ematch, (regex_t*)eskip); +} + static int is_present_hf_helper_f(struct sip_msg* msg, gparam_t* gp) { struct hdr_field *hf;