Module: sip-router Branch: master Commit: 6526248ff5204286e832df0576f0403931777646 URL: http://git.sip-router.org/cgi-bin/gitweb.cgi/sip-router/?a=commit;h=6526248… Author: Alex Hermann &lt;alex(a)speakup.nl&gt; Committer: Alex Hermann &lt;alex(a)speakup.nl&gt; Date: Thu Mar 24 14:12:05 2011 +0100 modules_k/pv: Add s.replace transformation. Syntax: {s.replace,<search>,<replace>} Replaces every occurance of <search> with <replace>. Both parameters may contain pvars. --- modules_k/pv/pv_trans.c | 89 +++++++++++++++++++++++++++++++++++++++++++++- modules_k/pv/pv_trans.h | 3 +- 2 files changed, 89 insertions(+), 3 deletions(-) diff --git a/modules_k/pv/pv_trans.c b/modules_k/pv/pv_trans.c index 4842a06..b60f529 100644 --- a/modules_k/pv/pv_trans.c +++ b/modules_k/pv/pv_trans.c @@ -69,8 +69,8 @@ int tr_eval_string(struct sip_msg *msg, tr_param_t *tp, int subtype, { int i, j, max; char *p, *s; - str st; - pv_value_t v; + str st, st2; + pv_value_t v, w; if(val==NULL || val->flags&PV_VAL_NULL) return -1; @@ -496,6 +496,61 @@ int tr_eval_string(struct sip_msg *msg, tr_param_t *tp, int subtype, val->rs.len = j-1; break; + + case TR_S_REPLACE: + if(tp==NULL || tp->next==NULL) + { + LM_ERR("select invalid parameters\n"); + return -1; + } + if(!(val->flags&PV_VAL_STR)) + val->rs.s = int2str(val->ri, &val->rs.len); + + if(tp->type==TR_PARAM_STRING) + { + st = tp->v.s; + } else { + if(pv_get_spec_value(msg, (pv_spec_p)tp->v.data, &v)!=0 + || (!(v.flags&PV_VAL_STR)) || v.rs.len<=0) + { + LM_ERR("replace cannot get p1\n"); + return -1; + } + st = v.rs; + } + + if(tp->next->type==TR_PARAM_STRING) + { + st2 = tp->next->v.s; + } else { + if(pv_get_spec_value(msg, (pv_spec_p)tp->next->v.data, &w)!=0 + || (!(w.flags&PV_VAL_STR)) || w.rs.len<=0) + { + LM_ERR("replace cannot get p2\n"); + return -1; + } + st2 = w.rs; + } + + val->flags = PV_VAL_STR; + val->ri = 0; + + i = 0; + j = 0; + max = val->rs.len - st.len; + while (i < val->rs.len && j < TR_BUFFER_SIZE) { + if (i <= max && val->rs.s[i] == st.s[0] && strncmp(val->rs.s+i, st.s, st.len) == 0) { + strncpy(_tr_buffer+j, st2.s, st2.len); + i += st.len; + j += st2.len; + } else { + _tr_buffer[j++] = val->rs.s[i++]; + } + } + val->rs.s = _tr_buffer; + val->rs.len = j; + break; + case TR_S_TIMEFORMAT: if(tp==NULL) { @@ -1483,6 +1538,36 @@ char* tr_parse_string(str* in, trans_t *t) goto error; } goto done; + } else if(name.len==7 && strncasecmp(name.s, "replace", 7)==0) { + t->subtype = TR_S_REPLACE; + if(*p!=TR_PARAM_MARKER) + { + LM_ERR("invalid replace transformation: %.*s!\n", in->len, in->s); + goto error; + } + p++; + _tr_parse_sparam(p, p0, tp, spec, ps, in, s); + t->params = tp; + tp = 0; + while(*p && (*p==' ' || *p=='\t' || *p=='\n')) p++; + if(*p!=TR_PARAM_MARKER) + { + LM_ERR("invalid replace transformation: %.*s!\n", + in->len, in->s); + goto error; + } + p++; + _tr_parse_sparam(p, p0, tp, spec, ps, in, s); + t->params->next = tp; + tp = 0; + while(*p && (*p==' ' || *p=='\t' || *p=='\n')) p++; + if(*p!=TR_RBRACKET) + { + LM_ERR("invalid replace transformation: %.*s!!\n", + in->len, in->s); + goto error; + } + goto done; } LM_ERR("unknown transformation: %.*s/%.*s/%d!\n", in->len, in->s, diff --git a/modules_k/pv/pv_trans.h b/modules_k/pv/pv_trans.h index 222c09e..0938ddc 100644 --- a/modules_k/pv/pv_trans.h +++ b/modules_k/pv/pv_trans.h @@ -39,7 +39,8 @@ enum _tr_s_subtype { TR_S_SELECT, TR_S_ENCODEHEXA, TR_S_DECODEHEXA, TR_S_ESCAPECOMMON, TR_S_UNESCAPECOMMON, TR_S_ESCAPEUSER, TR_S_UNESCAPEUSER, TR_S_ESCAPEPARAM, TR_S_UNESCAPEPARAM, TR_S_TOLOWER, TR_S_TOUPPER, - TR_S_STRIP, TR_S_STRIPTAIL, TR_S_PREFIXES, TR_S_PREFIXES_QUOT, TR_S_TIMEFORMAT + TR_S_STRIP, TR_S_STRIPTAIL, TR_S_PREFIXES, TR_S_PREFIXES_QUOT, TR_S_REPLACE, + TR_S_TIMEFORMAT }; enum _tr_uri_subtype { TR_URI_NONE=0, TR_URI_USER, TR_URI_HOST, TR_URI_PASSWD, TR_URI_PORT,