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-rw-r--r--web/server/h2o/libh2o/lib/handler/configurator/errordoc.c203
1 files changed, 203 insertions, 0 deletions
diff --git a/web/server/h2o/libh2o/lib/handler/configurator/errordoc.c b/web/server/h2o/libh2o/lib/handler/configurator/errordoc.c
new file mode 100644
index 00000000..ab24923e
--- /dev/null
+++ b/web/server/h2o/libh2o/lib/handler/configurator/errordoc.c
@@ -0,0 +1,203 @@
+/*
+ * Copyright (c) 2015-2016 DeNA Co., Ltd., Kazuho Oku
+ *
+ * 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 "h2o.h"
+#include "h2o/configurator.h"
+
+struct errordoc_configurator_t {
+ h2o_configurator_t super;
+ h2o_mem_pool_t pool;
+ H2O_VECTOR(h2o_errordoc_t) * vars, _vars_stack[H2O_CONFIGURATOR_NUM_LEVELS + 1];
+};
+
+static int scan_and_check_status(h2o_configurator_command_t *cmd, yoml_t *value, int *slot)
+{
+ if (value->type != YOML_TYPE_SCALAR) {
+ h2o_configurator_errprintf(cmd, value, "status must be must be either of: scalar, sequence of scalar");
+ return -1;
+ }
+ if (h2o_configurator_scanf(cmd, value, "%d", slot) != 0)
+ return -1;
+ if (!(400 <= *slot && *slot <= 599)) {
+ h2o_configurator_errprintf(cmd, value, "status must be within range of 400 to 599");
+ return -1;
+ }
+ return 0;
+}
+
+static int register_errordoc(h2o_configurator_command_t *cmd, h2o_configurator_context_t *ctx, yoml_t *hash)
+{
+ struct errordoc_configurator_t *self = (void *)cmd->configurator;
+ int status[200];
+ size_t status_len = 0;
+ int parsed;
+ const char *url = NULL;
+ size_t i, j, k;
+ yoml_t *key, *value;
+
+ for (i = 0; i != hash->data.mapping.size; ++i) {
+ key = hash->data.mapping.elements[i].key;
+ value = hash->data.mapping.elements[i].value;
+ if (key->type != YOML_TYPE_SCALAR)
+ goto UnknownKeyError;
+ if (strcmp(key->data.scalar, "status") == 0) {
+ if (status_len != 0)
+ goto KeyAlreadyDefinedError;
+
+ if (value->type == YOML_TYPE_SEQUENCE) {
+ if (value->data.sequence.size == 0) {
+ h2o_configurator_errprintf(cmd, value, "status sequence must not be empty");
+ return -1;
+ }
+ for (j = 0; j != value->data.sequence.size; ++j) {
+ if (scan_and_check_status(cmd, value->data.sequence.elements[j], &parsed) != 0)
+ return -1;
+ /* check the scanned status hasn't already appeared */
+ for (k = 0; k != status_len; ++k) {
+ if (status[k] == parsed) {
+ h2o_configurator_errprintf(cmd, value, "status %d appears multiple times", status[k]);
+ return -1;
+ }
+ }
+ status[status_len++] = parsed;
+ }
+ } else {
+ if (scan_and_check_status(cmd, value, &parsed) != 0)
+ return -1;
+ status[status_len++] = parsed;
+ }
+
+ } else if (strcmp(key->data.scalar, "url") == 0) {
+ if (url != NULL)
+ goto KeyAlreadyDefinedError;
+ if (value->type != YOML_TYPE_SCALAR) {
+ h2o_configurator_errprintf(cmd, value, "URL must be a scalar");
+ return -1;
+ }
+ url = value->data.scalar;
+ } else {
+ goto UnknownKeyError;
+ }
+ }
+
+ if (status_len == 0) {
+ h2o_configurator_errprintf(cmd, hash, "mandatory key `status` is not defined");
+ return -1;
+ }
+ if (url == NULL) {
+ h2o_configurator_errprintf(cmd, hash, "mandatory key `url` is not defined");
+ return -1;
+ }
+
+ h2o_iovec_t _url = h2o_strdup(&self->pool, url, SIZE_MAX);
+ for (i = 0; i != status_len; ++i){
+ /* register */
+ h2o_vector_reserve(&self->pool, self->vars, self->vars->size + 1);
+ h2o_errordoc_t *errordoc = self->vars->entries + self->vars->size++;
+ errordoc->status = status[i];
+ errordoc->url = _url;
+ }
+
+ return 0;
+
+UnknownKeyError:
+ h2o_configurator_errprintf(cmd, key, "key must be either of: `status`, `url`");
+ return -1;
+KeyAlreadyDefinedError:
+ h2o_configurator_errprintf(cmd, key, "the key cannot be defined more than once");
+ return -1;
+}
+
+static int on_config_errordoc(h2o_configurator_command_t *cmd, h2o_configurator_context_t *ctx, yoml_t *node)
+{
+ switch (node->type) {
+ case YOML_TYPE_SEQUENCE: {
+ size_t i;
+ for (i = 0; i != node->data.sequence.size; ++i) {
+ yoml_t *e = node->data.sequence.elements[i];
+ if (e->type != YOML_TYPE_MAPPING) {
+ h2o_configurator_errprintf(cmd, e, "element must be a mapping");
+ return -1;
+ }
+ if (register_errordoc(cmd, ctx, e) != 0)
+ return -1;
+ }
+ return 0;
+ }
+ case YOML_TYPE_MAPPING:
+ return register_errordoc(cmd, ctx, node);
+ default:
+ break;
+ }
+
+ h2o_configurator_errprintf(cmd, node, "argument must be either of: sequence, mapping");
+ return -1;
+}
+
+static int on_config_enter(h2o_configurator_t *_self, h2o_configurator_context_t *ctx, yoml_t *node)
+{
+ struct errordoc_configurator_t *self = (void *)_self;
+
+ if (self->vars == self->_vars_stack) {
+ /* entering global level */
+ h2o_mem_init_pool(&self->pool);
+ }
+
+ /* copy vars */
+ memset(&self->vars[1], 0, sizeof(self->vars[1]));
+ h2o_vector_reserve(&self->pool, &self->vars[1], self->vars[0].size);
+ h2o_memcpy(self->vars[1].entries, self->vars[0].entries, sizeof(self->vars[0].entries[0]) * self->vars[0].size);
+ self->vars[1].size = self->vars[0].size;
+
+ ++self->vars;
+ return 0;
+}
+
+static int on_config_exit(h2o_configurator_t *_self, h2o_configurator_context_t *ctx, yoml_t *node)
+{
+ struct errordoc_configurator_t *self = (void *)_self;
+
+ if (ctx->pathconf != NULL && self->vars->size != 0)
+ h2o_errordoc_register(ctx->pathconf, self->vars->entries, self->vars->size);
+
+ --self->vars;
+ if (self->vars == self->_vars_stack) {
+ /* exitting global level */
+ h2o_mem_clear_pool(&self->pool);
+ }
+
+ return 0;
+}
+
+void h2o_errordoc_register_configurator(h2o_globalconf_t *conf)
+{
+ struct errordoc_configurator_t *c = (void *)h2o_configurator_create(conf, sizeof(*c));
+
+ /* set default vars */
+ c->vars = c->_vars_stack;
+
+ /* setup handlers */
+ c->super.enter = on_config_enter;
+ c->super.exit = on_config_exit;
+
+ /* reproxy: ON | OFF */
+ h2o_configurator_define_command(&c->super, "error-doc", H2O_CONFIGURATOR_FLAG_ALL_LEVELS, on_config_errordoc);
+}
generated by cgit v1.2.3 (git 2.39.1) at 2024-06-13 06:25:08 +0000