diff options
Diffstat (limited to 'src/core/lib/http')
| -rw-r--r-- | src/core/lib/http/format_request.c | 120 | ||||
| -rw-r--r-- | src/core/lib/http/format_request.h | 45 | ||||
| -rw-r--r-- | src/core/lib/http/httpcli.c | 293 | ||||
| -rw-r--r-- | src/core/lib/http/httpcli.h | 144 | ||||
| -rw-r--r-- | src/core/lib/http/httpcli_security_connector.c | 188 | ||||
| -rw-r--r-- | src/core/lib/http/parser.c | 313 | ||||
| -rw-r--r-- | src/core/lib/http/parser.h | 116 |
7 files changed, 1219 insertions, 0 deletions
diff --git a/src/core/lib/http/format_request.c b/src/core/lib/http/format_request.c new file mode 100644 index 0000000000..95b3918646 --- /dev/null +++ b/src/core/lib/http/format_request.c @@ -0,0 +1,120 @@ +/* + * + * Copyright 2015-2016, Google Inc. + * All rights reserved. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions are + * met: + * + * * Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * * Redistributions in binary form must reproduce the above + * copyright notice, this list of conditions and the following disclaimer + * in the documentation and/or other materials provided with the + * distribution. + * * Neither the name of Google Inc. nor the names of its + * contributors may be used to endorse or promote products derived from + * this software without specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS + * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT + * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR + * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT + * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, + * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT + * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, + * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY + * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT + * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE + * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. + * + */ + +#include "src/core/lib/http/format_request.h" + +#include <stdarg.h> +#include <stdio.h> +#include <string.h> + +#include <grpc/support/alloc.h> +#include <grpc/support/slice.h> +#include <grpc/support/string_util.h> +#include <grpc/support/useful.h> +#include "src/core/lib/support/string.h" + +static void fill_common_header(const grpc_httpcli_request *request, + gpr_strvec *buf) { + size_t i; + gpr_strvec_add(buf, gpr_strdup(request->http.path)); + gpr_strvec_add(buf, gpr_strdup(" HTTP/1.0\r\n")); + /* just in case some crazy server really expects HTTP/1.1 */ + gpr_strvec_add(buf, gpr_strdup("Host: ")); + gpr_strvec_add(buf, gpr_strdup(request->host)); + gpr_strvec_add(buf, gpr_strdup("\r\n")); + gpr_strvec_add(buf, gpr_strdup("Connection: close\r\n")); + gpr_strvec_add(buf, + gpr_strdup("User-Agent: " GRPC_HTTPCLI_USER_AGENT "\r\n")); + /* user supplied headers */ + for (i = 0; i < request->http.hdr_count; i++) { + gpr_strvec_add(buf, gpr_strdup(request->http.hdrs[i].key)); + gpr_strvec_add(buf, gpr_strdup(": ")); + gpr_strvec_add(buf, gpr_strdup(request->http.hdrs[i].value)); + gpr_strvec_add(buf, gpr_strdup("\r\n")); + } +} + +gpr_slice grpc_httpcli_format_get_request(const grpc_httpcli_request *request) { + gpr_strvec out; + char *flat; + size_t flat_len; + + gpr_strvec_init(&out); + gpr_strvec_add(&out, gpr_strdup("GET ")); + fill_common_header(request, &out); + gpr_strvec_add(&out, gpr_strdup("\r\n")); + + flat = gpr_strvec_flatten(&out, &flat_len); + gpr_strvec_destroy(&out); + + return gpr_slice_new(flat, flat_len, gpr_free); +} + +gpr_slice grpc_httpcli_format_post_request(const grpc_httpcli_request *request, + const char *body_bytes, + size_t body_size) { + gpr_strvec out; + char *tmp; + size_t out_len; + size_t i; + + gpr_strvec_init(&out); + + gpr_strvec_add(&out, gpr_strdup("POST ")); + fill_common_header(request, &out); + if (body_bytes) { + uint8_t has_content_type = 0; + for (i = 0; i < request->http.hdr_count; i++) { + if (strcmp(request->http.hdrs[i].key, "Content-Type") == 0) { + has_content_type = 1; + break; + } + } + if (!has_content_type) { + gpr_strvec_add(&out, gpr_strdup("Content-Type: text/plain\r\n")); + } + gpr_asprintf(&tmp, "Content-Length: %lu\r\n", (unsigned long)body_size); + gpr_strvec_add(&out, tmp); + } + gpr_strvec_add(&out, gpr_strdup("\r\n")); + tmp = gpr_strvec_flatten(&out, &out_len); + gpr_strvec_destroy(&out); + + if (body_bytes) { + tmp = gpr_realloc(tmp, out_len + body_size); + memcpy(tmp + out_len, body_bytes, body_size); + out_len += body_size; + } + + return gpr_slice_new(tmp, out_len, gpr_free); +} diff --git a/src/core/lib/http/format_request.h b/src/core/lib/http/format_request.h new file mode 100644 index 0000000000..2e933d804b --- /dev/null +++ b/src/core/lib/http/format_request.h @@ -0,0 +1,45 @@ +/* + * + * Copyright 2015-2016, Google Inc. + * All rights reserved. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions are + * met: + * + * * Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * * Redistributions in binary form must reproduce the above + * copyright notice, this list of conditions and the following disclaimer + * in the documentation and/or other materials provided with the + * distribution. + * * Neither the name of Google Inc. nor the names of its + * contributors may be used to endorse or promote products derived from + * this software without specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS + * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT + * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR + * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT + * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, + * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT + * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, + * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY + * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT + * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE + * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. + * + */ + +#ifndef GRPC_CORE_LIB_HTTP_FORMAT_REQUEST_H +#define GRPC_CORE_LIB_HTTP_FORMAT_REQUEST_H + +#include <grpc/support/slice.h> +#include "src/core/lib/http/httpcli.h" + +gpr_slice grpc_httpcli_format_get_request(const grpc_httpcli_request *request); +gpr_slice grpc_httpcli_format_post_request(const grpc_httpcli_request *request, + const char *body_bytes, + size_t body_size); + +#endif /* GRPC_CORE_LIB_HTTP_FORMAT_REQUEST_H */ diff --git a/src/core/lib/http/httpcli.c b/src/core/lib/http/httpcli.c new file mode 100644 index 0000000000..aab28ad8b6 --- /dev/null +++ b/src/core/lib/http/httpcli.c @@ -0,0 +1,293 @@ +/* + * + * Copyright 2015-2016, Google Inc. + * All rights reserved. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions are + * met: + * + * * Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * * Redistributions in binary form must reproduce the above + * copyright notice, this list of conditions and the following disclaimer + * in the documentation and/or other materials provided with the + * distribution. + * * Neither the name of Google Inc. nor the names of its + * contributors may be used to endorse or promote products derived from + * this software without specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS + * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT + * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR + * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT + * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, + * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT + * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, + * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY + * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT + * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE + * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. + * + */ + +#include "src/core/lib/http/httpcli.h" +#include "src/core/lib/iomgr/sockaddr.h" + +#include <string.h> + +#include <grpc/support/alloc.h> +#include <grpc/support/log.h> +#include <grpc/support/string_util.h> + +#include "src/core/lib/http/format_request.h" +#include "src/core/lib/http/parser.h" +#include "src/core/lib/iomgr/endpoint.h" +#include "src/core/lib/iomgr/iomgr_internal.h" +#include "src/core/lib/iomgr/resolve_address.h" +#include "src/core/lib/iomgr/tcp_client.h" +#include "src/core/lib/support/string.h" + +typedef struct { + gpr_slice request_text; + grpc_http_parser parser; + grpc_resolved_addresses *addresses; + size_t next_address; + grpc_endpoint *ep; + char *host; + char *ssl_host_override; + gpr_timespec deadline; + int have_read_byte; + const grpc_httpcli_handshaker *handshaker; + grpc_httpcli_response_cb on_response; + void *user_data; + grpc_httpcli_context *context; + grpc_pollset *pollset; + grpc_iomgr_object iomgr_obj; + gpr_slice_buffer incoming; + gpr_slice_buffer outgoing; + grpc_closure on_read; + grpc_closure done_write; + grpc_closure connected; +} internal_request; + +static grpc_httpcli_get_override g_get_override = NULL; +static grpc_httpcli_post_override g_post_override = NULL; + +static void plaintext_handshake(grpc_exec_ctx *exec_ctx, void *arg, + grpc_endpoint *endpoint, const char *host, + void (*on_done)(grpc_exec_ctx *exec_ctx, + void *arg, + grpc_endpoint *endpoint)) { + on_done(exec_ctx, arg, endpoint); +} + +const grpc_httpcli_handshaker grpc_httpcli_plaintext = {"http", + plaintext_handshake}; + +void grpc_httpcli_context_init(grpc_httpcli_context *context) { + context->pollset_set = grpc_pollset_set_create(); +} + +void grpc_httpcli_context_destroy(grpc_httpcli_context *context) { + grpc_pollset_set_destroy(context->pollset_set); +} + +static void next_address(grpc_exec_ctx *exec_ctx, internal_request *req); + +static void finish(grpc_exec_ctx *exec_ctx, internal_request *req, + int success) { + grpc_pollset_set_del_pollset(exec_ctx, req->context->pollset_set, + req->pollset); + req->on_response(exec_ctx, req->user_data, + success ? &req->parser.http.response : NULL); + grpc_http_parser_destroy(&req->parser); + if (req->addresses != NULL) { + grpc_resolved_addresses_destroy(req->addresses); + } + if (req->ep != NULL) { + grpc_endpoint_destroy(exec_ctx, req->ep); + } + gpr_slice_unref(req->request_text); + gpr_free(req->host); + gpr_free(req->ssl_host_override); + grpc_iomgr_unregister_object(&req->iomgr_obj); + gpr_slice_buffer_destroy(&req->incoming); + gpr_slice_buffer_destroy(&req->outgoing); + gpr_free(req); +} + +static void on_read(grpc_exec_ctx *exec_ctx, void *user_data, bool success); + +static void do_read(grpc_exec_ctx *exec_ctx, internal_request *req) { + grpc_endpoint_read(exec_ctx, req->ep, &req->incoming, &req->on_read); +} + +static void on_read(grpc_exec_ctx *exec_ctx, void *user_data, bool success) { + internal_request *req = user_data; + size_t i; + + for (i = 0; i < req->incoming.count; i++) { + if (GPR_SLICE_LENGTH(req->incoming.slices[i])) { + req->have_read_byte = 1; + if (!grpc_http_parser_parse(&req->parser, req->incoming.slices[i])) { + finish(exec_ctx, req, 0); + return; + } + } + } + + if (success) { + do_read(exec_ctx, req); + } else if (!req->have_read_byte) { + next_address(exec_ctx, req); + } else { + int parse_success = grpc_http_parser_eof(&req->parser); + if (parse_success && (req->parser.type != GRPC_HTTP_RESPONSE)) { + parse_success = 0; + } + finish(exec_ctx, req, parse_success); + } +} + +static void on_written(grpc_exec_ctx *exec_ctx, internal_request *req) { + do_read(exec_ctx, req); +} + +static void done_write(grpc_exec_ctx *exec_ctx, void *arg, bool success) { + internal_request *req = arg; + if (success) { + on_written(exec_ctx, req); + } else { + next_address(exec_ctx, req); + } +} + +static void start_write(grpc_exec_ctx *exec_ctx, internal_request *req) { + gpr_slice_ref(req->request_text); + gpr_slice_buffer_add(&req->outgoing, req->request_text); + grpc_endpoint_write(exec_ctx, req->ep, &req->outgoing, &req->done_write); +} + +static void on_handshake_done(grpc_exec_ctx *exec_ctx, void *arg, + grpc_endpoint *ep) { + internal_request *req = arg; + + if (!ep) { + next_address(exec_ctx, req); + return; + } + + req->ep = ep; + start_write(exec_ctx, req); +} + +static void on_connected(grpc_exec_ctx *exec_ctx, void *arg, bool success) { + internal_request *req = arg; + + if (!req->ep) { + next_address(exec_ctx, req); + return; + } + req->handshaker->handshake( + exec_ctx, req, req->ep, + req->ssl_host_override ? req->ssl_host_override : req->host, + on_handshake_done); +} + +static void next_address(grpc_exec_ctx *exec_ctx, internal_request *req) { + grpc_resolved_address *addr; + if (req->next_address == req->addresses->naddrs) { + finish(exec_ctx, req, 0); + return; + } + addr = &req->addresses->addrs[req->next_address++]; + grpc_closure_init(&req->connected, on_connected, req); + grpc_tcp_client_connect( + exec_ctx, &req->connected, &req->ep, req->context->pollset_set, + (struct sockaddr *)&addr->addr, addr->len, req->deadline); +} + +static void on_resolved(grpc_exec_ctx *exec_ctx, void *arg, + grpc_resolved_addresses *addresses) { + internal_request *req = arg; + if (!addresses) { + finish(exec_ctx, req, 0); + return; + } + req->addresses = addresses; + req->next_address = 0; + next_address(exec_ctx, req); +} + +static void internal_request_begin( + grpc_exec_ctx *exec_ctx, grpc_httpcli_context *context, + grpc_pollset *pollset, const grpc_httpcli_request *request, + gpr_timespec deadline, grpc_httpcli_response_cb on_response, + void *user_data, const char *name, gpr_slice request_text) { + internal_request *req = gpr_malloc(sizeof(internal_request)); + memset(req, 0, sizeof(*req)); + req->request_text = request_text; + grpc_http_parser_init(&req->parser); + req->on_response = on_response; + req->user_data = user_data; + req->deadline = deadline; + req->handshaker = + request->handshaker ? request->handshaker : &grpc_httpcli_plaintext; + req->context = context; + req->pollset = pollset; + grpc_closure_init(&req->on_read, on_read, req); + grpc_closure_init(&req->done_write, done_write, req); + gpr_slice_buffer_init(&req->incoming); + gpr_slice_buffer_init(&req->outgoing); + grpc_iomgr_register_object(&req->iomgr_obj, name); + req->host = gpr_strdup(request->host); + req->ssl_host_override = gpr_strdup(request->ssl_host_override); + + grpc_pollset_set_add_pollset(exec_ctx, req->context->pollset_set, + req->pollset); + grpc_resolve_address(request->host, req->handshaker->default_port, + on_resolved, req); +} + +void grpc_httpcli_get(grpc_exec_ctx *exec_ctx, grpc_httpcli_context *context, + grpc_pollset *pollset, + const grpc_httpcli_request *request, + gpr_timespec deadline, + grpc_httpcli_response_cb on_response, void *user_data) { + char *name; + if (g_get_override && + g_get_override(exec_ctx, request, deadline, on_response, user_data)) { + return; + } + gpr_asprintf(&name, "HTTP:GET:%s:%s", request->host, request->http.path); + internal_request_begin(exec_ctx, context, pollset, request, deadline, + on_response, user_data, name, + grpc_httpcli_format_get_request(request)); + gpr_free(name); +} + +void grpc_httpcli_post(grpc_exec_ctx *exec_ctx, grpc_httpcli_context *context, + grpc_pollset *pollset, + const grpc_httpcli_request *request, + const char *body_bytes, size_t body_size, + gpr_timespec deadline, + grpc_httpcli_response_cb on_response, void *user_data) { + char *name; + if (g_post_override && + g_post_override(exec_ctx, request, body_bytes, body_size, deadline, + on_response, user_data)) { + return; + } + gpr_asprintf(&name, "HTTP:POST:%s:%s", request->host, request->http.path); + internal_request_begin( + exec_ctx, context, pollset, request, deadline, on_response, user_data, + name, grpc_httpcli_format_post_request(request, body_bytes, body_size)); + gpr_free(name); +} + +void grpc_httpcli_set_override(grpc_httpcli_get_override get, + grpc_httpcli_post_override post) { + g_get_override = get; + g_post_override = post; +} diff --git a/src/core/lib/http/httpcli.h b/src/core/lib/http/httpcli.h new file mode 100644 index 0000000000..b8d54a8586 --- /dev/null +++ b/src/core/lib/http/httpcli.h @@ -0,0 +1,144 @@ +/* + * + * Copyright 2015-2016, Google Inc. + * All rights reserved. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions are + * met: + * + * * Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * * Redistributions in binary form must reproduce the above + * copyright notice, this list of conditions and the following disclaimer + * in the documentation and/or other materials provided with the + * distribution. + * * Neither the name of Google Inc. nor the names of its + * contributors may be used to endorse or promote products derived from + * this software without specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS + * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT + * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR + * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT + * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, + * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT + * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, + * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY + * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT + * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE + * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. + * + */ + +#ifndef GRPC_CORE_LIB_HTTP_HTTPCLI_H +#define GRPC_CORE_LIB_HTTP_HTTPCLI_H + +#include <stddef.h> + +#include <grpc/support/time.h> + +#include "src/core/lib/http/parser.h" +#include "src/core/lib/iomgr/endpoint.h" +#include "src/core/lib/iomgr/iomgr_internal.h" +#include "src/core/lib/iomgr/pollset_set.h" + +/* User agent this library reports */ +#define GRPC_HTTPCLI_USER_AGENT "grpc-httpcli/0.0" + +/* Tracks in-progress http requests + TODO(ctiller): allow caching and capturing multiple requests for the + same content and combining them */ +typedef struct grpc_httpcli_context { + grpc_pollset_set *pollset_set; +} grpc_httpcli_context; + +typedef struct { + const char *default_port; + void (*handshake)(grpc_exec_ctx *exec_ctx, void *arg, grpc_endpoint *endpoint, + const char *host, + void (*on_done)(grpc_exec_ctx *exec_ctx, void *arg, + grpc_endpoint *endpoint)); +} grpc_httpcli_handshaker; + +extern const grpc_httpcli_handshaker grpc_httpcli_plaintext; +extern const grpc_httpcli_handshaker grpc_httpcli_ssl; + +/* A request */ +typedef struct grpc_httpcli_request { + /* The host name to connect to */ + char *host; + /* The host to verify in the SSL handshake (or NULL) */ + char *ssl_host_override; + /* The main part of the request + The following headers are supplied automatically and MUST NOT be set here: + Host, Connection, User-Agent */ + grpc_http_request http; + /* handshaker to use ssl for the request */ + const grpc_httpcli_handshaker *handshaker; +} grpc_httpcli_request; + +/* Expose the parser response type as a httpcli response too */ +typedef struct grpc_http_response grpc_httpcli_response; + +/* Callback for grpc_httpcli_get and grpc_httpcli_post. */ +typedef void (*grpc_httpcli_response_cb)(grpc_exec_ctx *exec_ctx, + void *user_data, + const grpc_http_response *response); + +void grpc_httpcli_context_init(grpc_httpcli_context *context); +void grpc_httpcli_context_destroy(grpc_httpcli_context *context); + +/* Asynchronously perform a HTTP GET. + 'context' specifies the http context under which to do the get + 'pollset' indicates a grpc_pollset that is interested in the result + of the get - work on this pollset may be used to progress the get + operation + 'request' contains request parameters - these are caller owned and can be + destroyed once the call returns + 'deadline' contains a deadline for the request (or gpr_inf_future) + 'on_response' is a callback to report results to (and 'user_data' is a user + supplied pointer to pass to said call) */ +void grpc_httpcli_get(grpc_exec_ctx *exec_ctx, grpc_httpcli_context *context, + grpc_pollset *pollset, + const grpc_httpcli_request *request, + gpr_timespec deadline, + grpc_httpcli_response_cb on_response, void *user_data); + +/* Asynchronously perform a HTTP POST. + 'context' specifies the http context under which to do the post + 'pollset' indicates a grpc_pollset that is interested in the result + of the post - work on this pollset may be used to progress the post + operation + 'request' contains request parameters - these are caller owned and can be + destroyed once the call returns + 'body_bytes' and 'body_size' specify the payload for the post. + When there is no body, pass in NULL as body_bytes. + 'deadline' contains a deadline for the request (or gpr_inf_future) + 'em' points to a caller owned event manager that must be alive for the + lifetime of the request + 'on_response' is a callback to report results to (and 'user_data' is a user + supplied pointer to pass to said call) + Does not support ?var1=val1&var2=val2 in the path. */ +void grpc_httpcli_post(grpc_exec_ctx *exec_ctx, grpc_httpcli_context *context, + grpc_pollset *pollset, + const grpc_httpcli_request *request, + const char *body_bytes, size_t body_size, + gpr_timespec deadline, + grpc_httpcli_response_cb on_response, void *user_data); + +/* override functions return 1 if they handled the request, 0 otherwise */ +typedef int (*grpc_httpcli_get_override)(grpc_exec_ctx *exec_ctx, + const grpc_httpcli_request *request, + gpr_timespec deadline, + grpc_httpcli_response_cb on_response, + void *user_data); +typedef int (*grpc_httpcli_post_override)( + grpc_exec_ctx *exec_ctx, const grpc_httpcli_request *request, + const char *body_bytes, size_t body_size, gpr_timespec deadline, + grpc_httpcli_response_cb on_response, void *user_data); + +void grpc_httpcli_set_override(grpc_httpcli_get_override get, + grpc_httpcli_post_override post); + +#endif /* GRPC_CORE_LIB_HTTP_HTTPCLI_H */ diff --git a/src/core/lib/http/httpcli_security_connector.c b/src/core/lib/http/httpcli_security_connector.c new file mode 100644 index 0000000000..6f1630ac1f --- /dev/null +++ b/src/core/lib/http/httpcli_security_connector.c @@ -0,0 +1,188 @@ +/* + * + * Copyright 2015-2016, Google Inc. + * All rights reserved. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions are + * met: + * + * * Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * * Redistributions in binary form must reproduce the above + * copyright notice, this list of conditions and the following disclaimer + * in the documentation and/or other materials provided with the + * distribution. + * * Neither the name of Google Inc. nor the names of its + * contributors may be used to endorse or promote products derived from + * this software without specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS + * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT + * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR + * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT + * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, + * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT + * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, + * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY + * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT + * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE + * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. + * + */ + +#include "src/core/lib/http/httpcli.h" + +#include <string.h> + +#include <grpc/support/alloc.h> +#include <grpc/support/log.h> +#include <grpc/support/string_util.h> +#include "src/core/lib/security/handshake.h" +#include "src/core/lib/support/string.h" +#include "src/core/lib/tsi/ssl_transport_security.h" + +typedef struct { + grpc_channel_security_connector base; + tsi_ssl_handshaker_factory *handshaker_factory; + char *secure_peer_name; +} grpc_httpcli_ssl_channel_security_connector; + +static void httpcli_ssl_destroy(grpc_security_connector *sc) { + grpc_httpcli_ssl_channel_security_connector *c = + (grpc_httpcli_ssl_channel_security_connector *)sc; + if (c->handshaker_factory != NULL) { + tsi_ssl_handshaker_factory_destroy(c->handshaker_factory); + } + if (c->secure_peer_name != NULL) gpr_free(c->secure_peer_name); + gpr_free(sc); +} + +static void httpcli_ssl_do_handshake(grpc_exec_ctx *exec_ctx, + grpc_channel_security_connector *sc, + grpc_endpoint *nonsecure_endpoint, + grpc_security_handshake_done_cb cb, + void *user_data) { + grpc_httpcli_ssl_channel_security_connector *c = + (grpc_httpcli_ssl_channel_security_connector *)sc; + tsi_result result = TSI_OK; + tsi_handshaker *handshaker; + if (c->handshaker_factory == NULL) { + cb(exec_ctx, user_data, GRPC_SECURITY_ERROR, NULL, NULL); + return; + } + result = tsi_ssl_handshaker_factory_create_handshaker( + c->handshaker_factory, c->secure_peer_name, &handshaker); + if (result != TSI_OK) { + gpr_log(GPR_ERROR, "Handshaker creation failed with error %s.", + tsi_result_to_string(result)); + cb(exec_ctx, user_data, GRPC_SECURITY_ERROR, NULL, NULL); + } else { + grpc_do_security_handshake(exec_ctx, handshaker, &sc->base, true, + nonsecure_endpoint, cb, user_data); + } +} + +static void httpcli_ssl_check_peer(grpc_exec_ctx *exec_ctx, + grpc_security_connector *sc, tsi_peer peer, + grpc_security_peer_check_cb cb, + void *user_data) { + grpc_httpcli_ssl_channel_security_connector *c = + (grpc_httpcli_ssl_channel_security_connector *)sc; + grpc_security_status status = GRPC_SECURITY_OK; + + /* Check the peer name. */ + if (c->secure_peer_name != NULL && + !tsi_ssl_peer_matches_name(&peer, c->secure_peer_name)) { + gpr_log(GPR_ERROR, "Peer name %s is not in peer certificate", + c->secure_peer_name); + status = GRPC_SECURITY_ERROR; + } + cb(exec_ctx, user_data, status, NULL); + tsi_peer_destruct(&peer); +} + +static grpc_security_connector_vtable httpcli_ssl_vtable = { + httpcli_ssl_destroy, httpcli_ssl_check_peer}; + +static grpc_security_status httpcli_ssl_channel_security_connector_create( + const unsigned char *pem_root_certs, size_t pem_root_certs_size, + const char *secure_peer_name, grpc_channel_security_connector **sc) { + tsi_result result = TSI_OK; + grpc_httpcli_ssl_channel_security_connector *c; + + if (secure_peer_name != NULL && pem_root_certs == NULL) { + gpr_log(GPR_ERROR, + "Cannot assert a secure peer name without a trust root."); + return GRPC_SECURITY_ERROR; + } + + c = gpr_malloc(sizeof(grpc_httpcli_ssl_channel_security_connector)); + memset(c, 0, sizeof(grpc_httpcli_ssl_channel_security_connector)); + + gpr_ref_init(&c->base.base.refcount, 1); + c->base.base.vtable = &httpcli_ssl_vtable; + if (secure_peer_name != NULL) { + c->secure_peer_name = gpr_strdup(secure_peer_name); + } + result = tsi_create_ssl_client_handshaker_factory( + NULL, 0, NULL, 0, pem_root_certs, pem_root_certs_size, NULL, NULL, NULL, + 0, &c->handshaker_factory); + if (result != TSI_OK) { + gpr_log(GPR_ERROR, "Handshaker factory creation failed with %s.", + tsi_result_to_string(result)); + httpcli_ssl_destroy(&c->base.base); + *sc = NULL; + return GRPC_SECURITY_ERROR; + } + c->base.do_handshake = httpcli_ssl_do_handshake; + *sc = &c->base; + return GRPC_SECURITY_OK; +} + +/* handshaker */ + +typedef struct { + void (*func)(grpc_exec_ctx *exec_ctx, void *arg, grpc_endpoint *endpoint); + void *arg; +} on_done_closure; + +static void on_secure_transport_setup_done(grpc_exec_ctx *exec_ctx, void *rp, + grpc_security_status status, + grpc_endpoint *secure_endpoint, + grpc_auth_context *auth_context) { + on_done_closure *c = rp; + if (status != GRPC_SECURITY_OK) { + gpr_log(GPR_ERROR, "Secure transport setup failed with error %d.", status); + c->func(exec_ctx, c->arg, NULL); + } else { + c->func(exec_ctx, c->arg, secure_endpoint); + } + gpr_free(c); +} + +static void ssl_handshake(grpc_exec_ctx *exec_ctx, void *arg, + grpc_endpoint *tcp, const char *host, + void (*on_done)(grpc_exec_ctx *exec_ctx, void *arg, + grpc_endpoint *endpoint)) { + grpc_channel_security_connector *sc = NULL; + const unsigned char *pem_root_certs = NULL; + on_done_closure *c = gpr_malloc(sizeof(*c)); + size_t pem_root_certs_size = grpc_get_default_ssl_roots(&pem_root_certs); + if (pem_root_certs == NULL || pem_root_certs_size == 0) { + gpr_log(GPR_ERROR, "Could not get default pem root certs."); + on_done(exec_ctx, arg, NULL); + gpr_free(c); + return; + } + c->func = on_done; + c->arg = arg; + GPR_ASSERT(httpcli_ssl_channel_security_connector_create( + pem_root_certs, pem_root_certs_size, host, &sc) == + GRPC_SECURITY_OK); + grpc_channel_security_connector_do_handshake( + exec_ctx, sc, tcp, on_secure_transport_setup_done, c); + GRPC_SECURITY_CONNECTOR_UNREF(&sc->base, "httpcli"); +} + +const grpc_httpcli_handshaker grpc_httpcli_ssl = {"https", ssl_handshake}; diff --git a/src/core/lib/http/parser.c b/src/core/lib/http/parser.c new file mode 100644 index 0000000000..5d4e304615 --- /dev/null +++ b/src/core/lib/http/parser.c @@ -0,0 +1,313 @@ +/* + * + * Copyright 2015-2016, Google Inc. + * All rights reserved. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions are + * met: + * + * * Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * * Redistributions in binary form must reproduce the above + * copyright notice, this list of conditions and the following disclaimer + * in the documentation and/or other materials provided with the + * distribution. + * * Neither the name of Google Inc. nor the names of its + * contributors may be used to endorse or promote products derived from + * this software without specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS + * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT + * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR + * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT + * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, + * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT + * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, + * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY + * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT + * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE + * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. + * + */ + +#include "src/core/lib/http/parser.h" + +#include <string.h> + +#include <grpc/support/alloc.h> +#include <grpc/support/log.h> +#include <grpc/support/useful.h> + +static char *buf2str(void *buffer, size_t length) { + char *out = gpr_malloc(length + 1); + memcpy(out, buffer, length); + out[length] = 0; + return out; +} + +static int handle_response_line(grpc_http_parser *parser) { + uint8_t *beg = parser->cur_line; + uint8_t *cur = beg; + uint8_t *end = beg + parser->cur_line_length; + + if (cur == end || *cur++ != 'H') goto error; + if (cur == end || *cur++ != 'T') goto error; + if (cur == end || *cur++ != 'T') goto error; + if (cur == end || *cur++ != 'P') goto error; + if (cur == end || *cur++ != '/') goto error; + if (cur == end || *cur++ != '1') goto error; + if (cur == end || *cur++ != '.') goto error; + if (cur == end || *cur < '0' || *cur++ > '1') goto error; + if (cur == end || *cur++ != ' ') goto error; + if (cur == end || *cur < '1' || *cur++ > '9') goto error; + if (cur == end || *cur < '0' || *cur++ > '9') goto error; + if (cur == end || *cur < '0' || *cur++ > '9') goto error; + parser->http.response.status = + (cur[-3] - '0') * 100 + (cur[-2] - '0') * 10 + (cur[-1] - '0'); + if (cur == end || *cur++ != ' ') goto error; + + /* we don't really care about the status code message */ + + return 1; + +error: + gpr_log(GPR_ERROR, "Failed parsing response line"); + return 0; +} + +static int handle_request_line(grpc_http_parser *parser) { + uint8_t *beg = parser->cur_line; + uint8_t *cur = beg; + uint8_t *end = beg + parser->cur_line_length; + uint8_t vers_major = 0; + uint8_t vers_minor = 0; + + while (cur != end && *cur++ != ' ') + ; + if (cur == end) goto error; + parser->http.request.method = buf2str(beg, (size_t)(cur - beg - 1)); + + beg = cur; + while (cur != end && *cur++ != ' ') + ; + if (cur == end) goto error; + parser->http.request.path = buf2str(beg, (size_t)(cur - beg - 1)); + + if (cur == end || *cur++ != 'H') goto error; + if (cur == end || *cur++ != 'T') goto error; + if (cur == end || *cur++ != 'T') goto error; + if (cur == end || *cur++ != 'P') goto error; + if (cur == end || *cur++ != '/') goto error; + vers_major = (uint8_t)(*cur++ - '1' + 1); + ++cur; + if (cur == end) goto error; + vers_minor = (uint8_t)(*cur++ - '1' + 1); + + if (vers_major == 1) { + if (vers_minor == 0) { + parser->http.request.version = GRPC_HTTP_HTTP10; + } else if (vers_minor == 1) { + parser->http.request.version = GRPC_HTTP_HTTP11; + } else { + goto error; + } + } else if (vers_major == 2) { + if (vers_minor == 0) { + parser->http.request.version = GRPC_HTTP_HTTP20; + } else { + goto error; + } + } else { + goto error; + } + + return 1; + +error: + gpr_log(GPR_ERROR, "Failed parsing request line"); + return 0; +} + +static int handle_first_line(grpc_http_parser *parser) { + if (parser->cur_line[0] == 'H') { + parser->type = GRPC_HTTP_RESPONSE; + return handle_response_line(parser); + } else { + parser->type = GRPC_HTTP_REQUEST; + return handle_request_line(parser); + } +} + +static int add_header(grpc_http_parser *parser) { + uint8_t *beg = parser->cur_line; + uint8_t *cur = beg; + uint8_t *end = beg + parser->cur_line_length; + size_t *hdr_count = NULL; + grpc_http_header **hdrs = NULL; + grpc_http_header hdr = {NULL, NULL}; + + GPR_ASSERT(cur != end); + + if (*cur == ' ' || *cur == '\t') { + gpr_log(GPR_ERROR, "Continued header lines not supported yet"); + goto error; + } + + while (cur != end && *cur != ':') { + cur++; + } + if (cur == end) { + gpr_log(GPR_ERROR, "Didn't find ':' in header string"); + goto error; + } + GPR_ASSERT(cur >= beg); + hdr.key = buf2str(beg, (size_t)(cur - beg)); + cur++; /* skip : */ + + while (cur != end && (*cur == ' ' || *cur == '\t')) { + cur++; + } + GPR_ASSERT(end - cur >= 2); + hdr.value = buf2str(cur, (size_t)(end - cur) - 2); + + if (parser->type == GRPC_HTTP_RESPONSE) { + hdr_count = &parser->http.response.hdr_count; + hdrs = &parser->http.response.hdrs; + } else if (parser->type == GRPC_HTTP_REQUEST) { + hdr_count = &parser->http.request.hdr_count; + hdrs = &parser->http.request.hdrs; + } else { + return 0; + } + + if (*hdr_count == parser->hdr_capacity) { + parser->hdr_capacity = + GPR_MAX(parser->hdr_capacity + 1, parser->hdr_capacity * 3 / 2); + *hdrs = gpr_realloc(*hdrs, parser->hdr_capacity * sizeof(**hdrs)); + } + (*hdrs)[(*hdr_count)++] = hdr; + return 1; + +error: + gpr_free(hdr.key); + gpr_free(hdr.value); + return 0; +} + +static int finish_line(grpc_http_parser *parser) { + switch (parser->state) { + case GRPC_HTTP_FIRST_LINE: + if (!handle_first_line(parser)) { + return 0; + } + parser->state = GRPC_HTTP_HEADERS; + break; + case GRPC_HTTP_HEADERS: + if (parser->cur_line_length == 2) { + parser->state = GRPC_HTTP_BODY; + break; + } + if (!add_header(parser)) { + return 0; + } + break; + case GRPC_HTTP_BODY: + GPR_UNREACHABLE_CODE(return 0); + } + + parser->cur_line_length = 0; + return 1; +} + +static int addbyte_body(grpc_http_parser *parser, uint8_t byte) { + size_t *body_length = NULL; + char **body = NULL; + + if (parser->type == GRPC_HTTP_RESPONSE) { + body_length = &parser->http.response.body_length; + body = &parser->http.response.body; + } else if (parser->type == GRPC_HTTP_REQUEST) { + body_length = &parser->http.request.body_length; + body = &parser->http.request.body; + } else { + return 0; + } + + if (*body_length == parser->body_capacity) { + parser->body_capacity = GPR_MAX(8, parser->body_capacity * 3 / 2); + *body = gpr_realloc((void *)*body, parser->body_capacity); + } + (*body)[*body_length] = (char)byte; + (*body_length)++; + + return 1; +} + +static int addbyte(grpc_http_parser *parser, uint8_t byte) { + switch (parser->state) { + case GRPC_HTTP_FIRST_LINE: + case GRPC_HTTP_HEADERS: + if (parser->cur_line_length >= GRPC_HTTP_PARSER_MAX_HEADER_LENGTH) { + gpr_log(GPR_ERROR, "HTTP client max line length (%d) exceeded", + GRPC_HTTP_PARSER_MAX_HEADER_LENGTH); + return 0; + } + parser->cur_line[parser->cur_line_length] = byte; + parser->cur_line_length++; + if (parser->cur_line_length >= 2 && + parser->cur_line[parser->cur_line_length - 2] == '\r' && + parser->cur_line[parser->cur_line_length - 1] == '\n') { + return finish_line(parser); + } else { + return 1; + } + GPR_UNREACHABLE_CODE(return 0); + case GRPC_HTTP_BODY: + return addbyte_body(parser, byte); + } + GPR_UNREACHABLE_CODE(return 0); +} + +void grpc_http_parser_init(grpc_http_parser *parser) { + memset(parser, 0, sizeof(*parser)); + parser->state = GRPC_HTTP_FIRST_LINE; + parser->type = GRPC_HTTP_UNKNOWN; +} + +void grpc_http_parser_destroy(grpc_http_parser *parser) { + size_t i; + if (parser->type == GRPC_HTTP_RESPONSE) { + gpr_free(parser->http.response.body); + for (i = 0; i < parser->http.response.hdr_count; i++) { + gpr_free(parser->http.response.hdrs[i].key); + gpr_free(parser->http.response.hdrs[i].value); + } + gpr_free(parser->http.response.hdrs); + } else if (parser->type == GRPC_HTTP_REQUEST) { + gpr_free(parser->http.request.body); + for (i = 0; i < parser->http.request.hdr_count; i++) { + gpr_free(parser->http.request.hdrs[i].key); + gpr_free(parser->http.request.hdrs[i].value); + } + gpr_free(parser->http.request.hdrs); + gpr_free(parser->http.request.method); + gpr_free(parser->http.request.path); + } +} + +int grpc_http_parser_parse(grpc_http_parser *parser, gpr_slice slice) { + size_t i; + + for (i = 0; i < GPR_SLICE_LENGTH(slice); i++) { + if (!addbyte(parser, GPR_SLICE_START_PTR(slice)[i])) { + return 0; + } + } + + return 1; +} + +int grpc_http_parser_eof(grpc_http_parser *parser) { + return parser->state == GRPC_HTTP_BODY; +} diff --git a/src/core/lib/http/parser.h b/src/core/lib/http/parser.h new file mode 100644 index 0000000000..6a72174aa6 --- /dev/null +++ b/src/core/lib/http/parser.h @@ -0,0 +1,116 @@ +/* + * + * Copyright 2015-2016, Google Inc. + * All rights reserved. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions are + * met: + * + * * Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * * Redistributions in binary form must reproduce the above + * copyright notice, this list of conditions and the following disclaimer + * in the documentation and/or other materials provided with the + * distribution. + * * Neither the name of Google Inc. nor the names of its + * contributors may be used to endorse or promote products derived from + * this software without specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS + * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT + * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR + * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT + * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, + * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT + * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, + * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY + * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT + * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE + * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. + * + */ + +#ifndef GRPC_CORE_LIB_HTTP_PARSER_H +#define GRPC_CORE_LIB_HTTP_PARSER_H + +#include <grpc/support/port_platform.h> +#include <grpc/support/slice.h> + +/* Maximum length of a header string of the form 'Key: Value\r\n' */ +#define GRPC_HTTP_PARSER_MAX_HEADER_LENGTH 4096 + +/* A single header to be passed in a request */ +typedef struct grpc_http_header { + char *key; + char *value; +} grpc_http_header; + +typedef enum { + GRPC_HTTP_FIRST_LINE, + GRPC_HTTP_HEADERS, + GRPC_HTTP_BODY +} grpc_http_parser_state; + +typedef enum { + GRPC_HTTP_HTTP10, + GRPC_HTTP_HTTP11, + GRPC_HTTP_HTTP20, +} grpc_http_version; + +typedef enum { + GRPC_HTTP_RESPONSE, + GRPC_HTTP_REQUEST, + GRPC_HTTP_UNKNOWN +} grpc_http_type; + +/* A request */ +typedef struct grpc_http_request { + /* Method of the request (e.g. GET, POST) */ + char *method; + /* The path of the resource to fetch */ + char *path; + /* HTTP version to use */ + grpc_http_version version; + /* Headers attached to the request */ + size_t hdr_count; + grpc_http_header *hdrs; + /* Body: length and contents; contents are NOT null-terminated */ + size_t body_length; + char *body; +} grpc_http_request; + +/* A response */ +typedef struct grpc_http_response { + /* HTTP status code */ + int status; + /* Headers: count and key/values */ + size_t hdr_count; + grpc_http_header *hdrs; + /* Body: length and contents; contents are NOT null-terminated */ + size_t body_length; + char *body; +} grpc_http_response; + +typedef struct { + grpc_http_parser_state state; + grpc_http_type type; + + union { + grpc_http_response response; + grpc_http_request request; + } http; + size_t body_capacity; + size_t hdr_capacity; + + uint8_t cur_line[GRPC_HTTP_PARSER_MAX_HEADER_LENGTH]; + size_t cur_line_length; +} grpc_http_parser; + +void grpc_http_parser_init(grpc_http_parser *parser); +void grpc_http_parser_destroy(grpc_http_parser *parser); + +int grpc_http_parser_parse(grpc_http_parser *parser, gpr_slice slice); +int grpc_http_parser_eof(grpc_http_parser *parser); + +#endif /* GRPC_CORE_LIB_HTTP_PARSER_H */ |