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/*
* Copyright (c) 2015 DeNA Co., Ltd., Kazuho Oku, Ryosuke Matsumoto
*
* Permission is hereby granted, free of charge, to any person obtaining a copy
* of this software and associated documentation files (the "Software"), to
* deal in the Software without restriction, including without limitation the
* rights to use, copy, modify, merge, publish, distribute, sublicense, and/or
* sell copies of the Software, and to permit persons to whom the Software is
* furnished to do so, subject to the following conditions:
*
* The above copyright notice and this permission notice shall be included in
* all copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
* FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS
* IN THE SOFTWARE.
*/
#include <errno.h>
#include <inttypes.h>
#include <stdio.h>
#include <stdlib.h>
#include "h2o.h"
#include "h2o/configurator.h"
#include "h2o/mruby_.h"
struct mruby_configurator_t {
h2o_configurator_t super;
h2o_mruby_config_vars_t *vars;
h2o_mruby_config_vars_t _vars_stack[H2O_CONFIGURATOR_NUM_LEVELS + 1];
mrb_state *mrb; /* will be lazily initialized */
};
static int compile_test(mrb_state *mrb, h2o_mruby_config_vars_t *config, char *errbuf)
{
mrb_value result = h2o_mruby_compile_code(mrb, config, errbuf);
int ok = !mrb_nil_p(result);
return ok;
}
static mrb_state *get_mrb(struct mruby_configurator_t *self)
{
if (self->mrb == NULL) {
self->mrb = mrb_open();
if (self->mrb == NULL) {
fprintf(stderr, "%s: no memory\n", H2O_MRUBY_MODULE_NAME);
abort();
}
h2o_mruby_setup_globals(self->mrb);
}
return self->mrb;
}
static int on_config_mruby_handler(h2o_configurator_command_t *cmd, h2o_configurator_context_t *ctx, yoml_t *node)
{
struct mruby_configurator_t *self = (void *)cmd->configurator;
/* set source */
self->vars->source = h2o_strdup(NULL, node->data.scalar, SIZE_MAX);
self->vars->path = node->filename;
self->vars->lineno = (int)node->line + 1;
/* check if there is any error in source */
char errbuf[1024];
if (!compile_test(get_mrb(self), self->vars, errbuf)) {
h2o_configurator_errprintf(cmd, node, "ruby compile error:%s", errbuf);
return -1;
}
/* register */
h2o_mruby_register(ctx->pathconf, self->vars);
return 0;
}
static int on_config_mruby_handler_file(h2o_configurator_command_t *cmd, h2o_configurator_context_t *ctx, yoml_t *node)
{
struct mruby_configurator_t *self = (void *)cmd->configurator;
FILE *fp = NULL;
h2o_iovec_t buf = {NULL};
int ret = -1;
/* open and read file */
if ((fp = fopen(node->data.scalar, "rt")) == NULL) {
h2o_configurator_errprintf(cmd, node, "failed to open file: %s:%s", node->data.scalar, strerror(errno));
goto Exit;
}
while (!feof(fp)) {
buf.base = h2o_mem_realloc(buf.base, buf.len + 65536);
buf.len += fread(buf.base + buf.len, 1, 65536, fp);
if (ferror(fp)) {
h2o_configurator_errprintf(cmd, node, "I/O error occurred while reading file:%s:%s", node->data.scalar,
strerror(errno));
goto Exit;
}
}
/* set source */
self->vars->source = buf;
buf.base = NULL;
self->vars->path = node->data.scalar; /* the value is retained until the end of the configuration phase */
self->vars->lineno = 0;
/* check if there is any error in source */
char errbuf[1024];
if (!compile_test(get_mrb(self), self->vars, errbuf)) {
h2o_configurator_errprintf(cmd, node, "failed to compile file:%s:%s", node->data.scalar, errbuf);
goto Exit;
}
/* register */
h2o_mruby_register(ctx->pathconf, self->vars);
ret = 0;
Exit:
if (fp != NULL)
fclose(fp);
if (buf.base != NULL)
free(buf.base);
return ret;
}
static int on_config_mruby_handler_path(h2o_configurator_command_t *cmd, h2o_configurator_context_t *ctx, yoml_t *node)
{
h2o_configurator_errprintf(cmd, node, "the command has been removed; see https://github.com/h2o/h2o/pull/467");
return -1;
}
static int on_config_enter(h2o_configurator_t *_self, h2o_configurator_context_t *ctx, yoml_t *node)
{
struct mruby_configurator_t *self = (void *)_self;
memcpy(self->vars + 1, self->vars, sizeof(*self->vars));
++self->vars;
return 0;
}
static int on_config_exit(h2o_configurator_t *_self, h2o_configurator_context_t *ctx, yoml_t *node)
{
struct mruby_configurator_t *self = (void *)_self;
/* free if the to-be-exitted frame level contains a different source */
if (self->vars[-1].source.base != self->vars[0].source.base)
free(self->vars->source.base);
--self->vars;
/* release mrb only when global configuration exited */
if (self->mrb != NULL && ctx->parent == NULL) {
mrb_close(self->mrb);
self->mrb = NULL;
}
return 0;
}
void h2o_mruby_register_configurator(h2o_globalconf_t *conf)
{
struct mruby_configurator_t *c = (void *)h2o_configurator_create(conf, sizeof(*c));
c->vars = c->_vars_stack;
c->super.enter = on_config_enter;
c->super.exit = on_config_exit;
h2o_configurator_define_command(&c->super, "mruby.handler", H2O_CONFIGURATOR_FLAG_PATH | H2O_CONFIGURATOR_FLAG_DEFERRED |
H2O_CONFIGURATOR_FLAG_EXPECT_SCALAR,
on_config_mruby_handler);
h2o_configurator_define_command(&c->super, "mruby.handler-file", H2O_CONFIGURATOR_FLAG_PATH | H2O_CONFIGURATOR_FLAG_DEFERRED |
H2O_CONFIGURATOR_FLAG_EXPECT_SCALAR,
on_config_mruby_handler_file);
h2o_configurator_define_command(&c->super, "mruby.handler_path", H2O_CONFIGURATOR_FLAG_PATH | H2O_CONFIGURATOR_FLAG_DEFERRED,
on_config_mruby_handler_path);
}
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