diff options
Diffstat (limited to '')
-rw-r--r-- | web/server/h2o/libh2o/lib/handler/redirect.c | 106 |
1 files changed, 106 insertions, 0 deletions
diff --git a/web/server/h2o/libh2o/lib/handler/redirect.c b/web/server/h2o/libh2o/lib/handler/redirect.c new file mode 100644 index 000000000..c8b9c5086 --- /dev/null +++ b/web/server/h2o/libh2o/lib/handler/redirect.c @@ -0,0 +1,106 @@ +/* + * Copyright (c) 2015 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 <stdlib.h> +#include "h2o.h" + +#define MODULE_NAME "lib/handler/redirect.c" + +struct st_h2o_redirect_handler_t { + h2o_handler_t super; + int internal; + int status; + h2o_iovec_t prefix; +}; + +static void on_dispose(h2o_handler_t *_self) +{ + h2o_redirect_handler_t *self = (void *)_self; + free(self->prefix.base); +} + +static void redirect_internally(h2o_redirect_handler_t *self, h2o_req_t *req, h2o_iovec_t dest) +{ + h2o_iovec_t method; + h2o_url_t input, resolved; + + /* resolve the URL */ + if (h2o_url_parse_relative(dest.base, dest.len, &input) != 0) { + h2o_req_log_error(req, MODULE_NAME, "invalid destination:%.*s", (int)dest.len, dest.base); + goto SendInternalError; + } + if (input.scheme != NULL && input.authority.base != NULL) { + resolved = input; + } else { + h2o_url_t base; + /* we MUST to set authority to that of hostconf, or internal redirect might create a TCP connection */ + if (h2o_url_init(&base, req->scheme, req->hostconf->authority.hostport, req->path) != 0) { + h2o_req_log_error(req, MODULE_NAME, "failed to parse current authority:%.*s", (int)req->authority.len, + req->authority.base); + goto SendInternalError; + } + h2o_url_resolve(&req->pool, &base, &input, &resolved); + } + + /* determine the method */ + switch (self->status) { + case 307: + case 308: + method = req->method; + break; + default: + method = h2o_iovec_init(H2O_STRLIT("GET")); + req->entity = (h2o_iovec_t){NULL}; + break; + } + + h2o_reprocess_request_deferred(req, method, resolved.scheme, resolved.authority, resolved.path, NULL, 1); + return; + +SendInternalError: + h2o_send_error_503(req, "Internal Server Error", "internal server error", 0); +} + +static int on_req(h2o_handler_t *_self, h2o_req_t *req) +{ + h2o_redirect_handler_t *self = (void *)_self; + h2o_iovec_t dest = h2o_build_destination(req, self->prefix.base, self->prefix.len, 1); + + /* redirect */ + if (self->internal) { + redirect_internally(self, req, dest); + } else { + h2o_send_redirect(req, self->status, "Redirected", dest.base, dest.len); + } + + return 0; +} + +h2o_redirect_handler_t *h2o_redirect_register(h2o_pathconf_t *pathconf, int internal, int status, const char *prefix) +{ + h2o_redirect_handler_t *self = (void *)h2o_create_handler(pathconf, sizeof(*self)); + self->super.dispose = on_dispose; + self->super.on_req = on_req; + self->internal = internal; + self->status = status; + self->prefix = h2o_strdup(NULL, prefix, SIZE_MAX); + return self; +} |