Function header_inout_cmd

modules/metadata/mod_headers.c:419–555

handle RequestHeader and Header directive */

/* handle RequestHeader and Header directive */
static APR_INLINE const char *header_inout_cmd(cmd_parms *cmd,
                                               void *indirconf,
                                               const char *action,
                                               const char *hdr,
                                               const char *value,
                                               const char *subs,
                                               const char *envclause)
{
    headers_conf *dirconf = indirconf;
    const char *condition_var = NULL;
    const char *colon;
    header_entry *new;
    ap_expr_info_t *expr = NULL;

    apr_array_header_t *fixup = (cmd->info == &hdr_in)
        ? dirconf->fixup_in   : (cmd->info == &hdr_out_always)
        ? dirconf->fixup_err
        : dirconf->fixup_out;

    new = (header_entry *) apr_array_push(fixup);

    if (!strcasecmp(action, "set"))
        new->action = hdr_set;
    else if (!strcasecmp(action, "setifempty"))
        new->action = hdr_setifempty;
    else if (!strcasecmp(action, "add"))
        new->action = hdr_add;
    else if (!strcasecmp(action, "append"))
        new->action = hdr_append;
    else if (!strcasecmp(action, "merge"))
        new->action = hdr_merge;
    else if (!strcasecmp(action, "unset"))
        new->action = hdr_unset;
    else if (!strcasecmp(action, "echo"))
        new->action = hdr_echo;
    else if (!strcasecmp(action, "edit"))
        new->action = hdr_edit;
    else if (!strcasecmp(action, "edit*"))
        new->action = hdr_edit_r;
    else if (!strcasecmp(action, "note")) {
        if (cmd->info == &hdr_in) {
            return "RequestHeader does not support the 'note' action";
        }
        new->action = hdr_note;
    }
    else
        return "first argument must be 'add', 'set', 'setifempty', 'append', 'merge', "
               "'unset', 'echo', 'note', 'edit', or 'edit*'.";

    if (new->action == hdr_edit || new->action == hdr_edit_r) {
        if (subs == NULL) {
            return "Header edit requires a match and a substitution";
        }
        new->regex = ap_pregcomp(cmd->pool, value, AP_REG_EXTENDED);
        if (new->regex == NULL) {
            return "Header edit regex could not be compiled";
        }
        new->subs = subs;