//响应添加报文头
TSReturnCode StaSerRespMimeHdrFieldAppend(TSHttpTxn txnp,char *name,int name_length,char *value,int value_len)
{
TSMBuffer bufp;
TSMLoc hdr_loc;
TSMLoc field_loc;
if (TSHttpTxnServerRespGet(txnp, &bufp, &hdr_loc) != TS_SUCCESS) {
return TS_ERROR;
}
field_loc = TSMimeHdrFieldFind(bufp, hdr_loc, name, name_length);
if(field_loc != TS_NULL_MLOC){
TSMimeHdrFieldValuesClear(bufp, hdr_loc, field_loc);
TSMimeHdrFieldValueStringInsert(bufp, hdr_loc, field_loc, -1, value, value_len);
TSHandleMLocRelease(bufp, hdr_loc, field_loc);
}else{
if (TSMimeHdrFieldCreate(bufp, hdr_loc, &field_loc) != TS_SUCCESS) {
return TS_ERROR;
}
TSMimeHdrFieldAppend(bufp, hdr_loc, field_loc);
TSMimeHdrFieldValuesClear(bufp, hdr_loc, field_loc);
TSMimeHdrFieldNameSet(bufp, hdr_loc, field_loc, name, name_length);
TSMimeHdrFieldValueStringInsert(bufp, hdr_loc, field_loc, -1, value, value_len);
TSHandleMLocRelease(bufp, hdr_loc, field_loc);
}
TSHandleMLocRelease(bufp, TS_NULL_MLOC, hdr_loc);
return TS_SUCCESS;
}
static void
replace_header(TSHttpTxn txnp)
{
TSMBuffer resp_bufp;
TSMLoc resp_loc;
TSMLoc field_loc;
if (TSHttpTxnServerRespGet(txnp, &resp_bufp, &resp_loc) != TS_SUCCESS) {
TSError("couldn't retrieve server response header.\n");
goto done;
}
field_loc = TSMimeHdrFieldFind(resp_bufp, resp_loc, TS_MIME_FIELD_ACCEPT_RANGES, TS_MIME_LEN_ACCEPT_RANGES);
if (field_loc == TS_NULL_MLOC) {
/* field was not found */
/* create a new field in the header */
TSMimeHdrFieldCreate(resp_bufp, resp_loc, &field_loc); /* Probably should check for errors. */
/* set its name */
TSMimeHdrFieldNameSet(resp_bufp, resp_loc, field_loc, TS_MIME_FIELD_ACCEPT_RANGES, TS_MIME_LEN_ACCEPT_RANGES);
/* set its value */
TSMimeHdrFieldValueAppend(resp_bufp, resp_loc, field_loc, -1, "none", 4);
/* insert it into the header */
TSMimeHdrFieldAppend(resp_bufp, resp_loc, field_loc);
TSHandleMLocRelease(resp_bufp, resp_loc, field_loc);
TSHandleMLocRelease(resp_bufp, TS_NULL_MLOC, resp_loc);
} else {
/* clear the field */
TSMimeHdrFieldValuesClear(resp_bufp, resp_loc, field_loc);
/* set the value to "none" */
TSMimeHdrFieldValueStringInsert(resp_bufp, resp_loc, field_loc, -1, "none", 4);
TSHandleMLocRelease(resp_bufp, resp_loc, field_loc);
TSHandleMLocRelease(resp_bufp, TS_NULL_MLOC, resp_loc);
}
done:
TSHttpTxnReenable(txnp, TS_EVENT_HTTP_CONTINUE);
}