diff options
Diffstat (limited to 'src/core/lib/http')
-rw-r--r-- | src/core/lib/http/parser.c.orig | 357 |
1 files changed, 0 insertions, 357 deletions
diff --git a/src/core/lib/http/parser.c.orig b/src/core/lib/http/parser.c.orig deleted file mode 100644 index 74d90fd8bf..0000000000 --- a/src/core/lib/http/parser.c.orig +++ /dev/null @@ -1,357 +0,0 @@ -/* - * - * Copyright 2015, 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> - -int grpc_http1_trace = 0; - -static char *buf2str(void *buffer, size_t length) { - char *out = gpr_malloc(length + 1); - memcpy(out, buffer, length); - out[length] = 0; - return out; -} - -static grpc_error *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') return GRPC_ERROR_CREATE("Expected 'H'"); - if (cur == end || *cur++ != 'T') return GRPC_ERROR_CREATE("Expected 'T'"); - if (cur == end || *cur++ != 'T') return GRPC_ERROR_CREATE("Expected 'T'"); - if (cur == end || *cur++ != 'P') return GRPC_ERROR_CREATE("Expected 'P'"); - if (cur == end || *cur++ != '/') return GRPC_ERROR_CREATE("Expected '/'"); - if (cur == end || *cur++ != '1') return GRPC_ERROR_CREATE("Expected '1'"); - if (cur == end || *cur++ != '.') return GRPC_ERROR_CREATE("Expected '.'"); - if (cur == end || *cur < '0' || *cur++ > '1') { - return GRPC_ERROR_CREATE("Expected HTTP/1.0 or HTTP/1.1"); - } - if (cur == end || *cur++ != ' ') return GRPC_ERROR_CREATE("Expected ' '"); - if (cur == end || *cur < '1' || *cur++ > '9') - return GRPC_ERROR_CREATE("Expected status code"); - if (cur == end || *cur < '0' || *cur++ > '9') - return GRPC_ERROR_CREATE("Expected status code"); - if (cur == end || *cur < '0' || *cur++ > '9') - return GRPC_ERROR_CREATE("Expected status code"); - parser->http.response->status = - (cur[-3] - '0') * 100 + (cur[-2] - '0') * 10 + (cur[-1] - '0'); - if (cur == end || *cur++ != ' ') return GRPC_ERROR_CREATE("Expected ' '"); - - /* we don't really care about the status code message */ - - return GRPC_ERROR_NONE; -} - -static grpc_error *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) return GRPC_ERROR_CREATE("No method on HTTP request line"); - parser->http.request->method = buf2str(beg, (size_t)(cur - beg - 1)); - - beg = cur; - while (cur != end && *cur++ != ' ') - ; - if (cur == end) return GRPC_ERROR_CREATE("No path on HTTP request line"); - parser->http.request->path = buf2str(beg, (size_t)(cur - beg - 1)); - - if (cur == end || *cur++ != 'H') return GRPC_ERROR_CREATE("Expected 'H'"); - if (cur == end || *cur++ != 'T') return GRPC_ERROR_CREATE("Expected 'T'"); - if (cur == end || *cur++ != 'T') return GRPC_ERROR_CREATE("Expected 'T'"); - if (cur == end || *cur++ != 'P') return GRPC_ERROR_CREATE("Expected 'P'"); - if (cur == end || *cur++ != '/') return GRPC_ERROR_CREATE("Expected '/'"); - vers_major = (uint8_t)(*cur++ - '1' + 1); - ++cur; - if (cur == end) - return GRPC_ERROR_CREATE("End of line in HTTP version string"); - 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 { - return GRPC_ERROR_CREATE( - "Expected one of HTTP/1.0, HTTP/1.1, or HTTP/2.0"); - } - } else if (vers_major == 2) { - if (vers_minor == 0) { - parser->http.request->version = GRPC_HTTP_HTTP20; - } else { - return GRPC_ERROR_CREATE( - "Expected one of HTTP/1.0, HTTP/1.1, or HTTP/2.0"); - } - } else { - return GRPC_ERROR_CREATE("Expected one of HTTP/1.0, HTTP/1.1, or HTTP/2.0"); - } - - return GRPC_ERROR_NONE; -} - -static grpc_error *handle_first_line(grpc_http_parser *parser) { - switch (parser->type) { - case GRPC_HTTP_REQUEST: - return handle_request_line(parser); - case GRPC_HTTP_RESPONSE: - return handle_response_line(parser); - } - GPR_UNREACHABLE_CODE(return GRPC_ERROR_CREATE("Should never reach here")); -} - -static grpc_error *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}; - grpc_error *error = GRPC_ERROR_NONE; - - GPR_ASSERT(cur != end); - - if (*cur == ' ' || *cur == '\t') { - error = GRPC_ERROR_CREATE("Continued header lines not supported yet"); - goto done; - } - - while (cur != end && *cur != ':') { - cur++; - } - if (cur == end) { -<<<<<<< HEAD - error = GRPC_ERROR_CREATE("Didn't find ':' in header string"); - goto done; -======= - if (grpc_http1_trace) { - gpr_log(GPR_ERROR, "Didn't find ':' in header string"); - } - goto error; ->>>>>>> a709afe241d8b264a1c326315f757b4a8d330207 - } - GPR_ASSERT(cur >= beg); - hdr.key = buf2str(beg, (size_t)(cur - beg)); - cur++; /* skip : */ - - while (cur != end && (*cur == ' ' || *cur == '\t')) { - cur++; - } - GPR_ASSERT((size_t)(end - cur) >= parser->cur_line_end_length); - hdr.value = buf2str(cur, (size_t)(end - cur) - parser->cur_line_end_length); - - switch (parser->type) { - case GRPC_HTTP_RESPONSE: - hdr_count = &parser->http.response->hdr_count; - hdrs = &parser->http.response->hdrs; - break; - case GRPC_HTTP_REQUEST: - hdr_count = &parser->http.request->hdr_count; - hdrs = &parser->http.request->hdrs; - break; - } - - 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; - -done: - if (error != GRPC_ERROR_NONE) { - gpr_free(hdr.key); - gpr_free(hdr.value); - } - return error; -} - -static grpc_error *finish_line(grpc_http_parser *parser) { - grpc_error *err; - switch (parser->state) { - case GRPC_HTTP_FIRST_LINE: - err = handle_first_line(parser); - if (err != GRPC_ERROR_NONE) return err; - parser->state = GRPC_HTTP_HEADERS; - break; - case GRPC_HTTP_HEADERS: - if (parser->cur_line_length == parser->cur_line_end_length) { - parser->state = GRPC_HTTP_BODY; - break; - } - err = add_header(parser); - if (err != GRPC_ERROR_NONE) { - return err; - } - break; - case GRPC_HTTP_BODY: - GPR_UNREACHABLE_CODE(return GRPC_ERROR_CREATE("Should never reach here")); - } - - parser->cur_line_length = 0; - return GRPC_ERROR_NONE; -} - -static grpc_error *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 { - GPR_UNREACHABLE_CODE(return GRPC_ERROR_CREATE("Should never reach here")); - } - - 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 GRPC_ERROR_NONE; -} - -static bool check_line(grpc_http_parser *parser) { - 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 true; - } - - // HTTP request with \n\r line termiantors. - else if (parser->cur_line_length >= 2 && - parser->cur_line[parser->cur_line_length - 2] == '\n' && - parser->cur_line[parser->cur_line_length - 1] == '\r') { - return true; - } - - // HTTP request with only \n line terminators. - else if (parser->cur_line_length >= 1 && - parser->cur_line[parser->cur_line_length - 1] == '\n') { - parser->cur_line_end_length = 1; - return true; - } - - return false; -} - -static grpc_error *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) { - if (grpc_http1_trace) - 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 (check_line(parser)) { - return finish_line(parser); - } else { - return GRPC_ERROR_NONE; - } - 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, grpc_http_type type, - void *request_or_response) { - memset(parser, 0, sizeof(*parser)); - parser->state = GRPC_HTTP_FIRST_LINE; - parser->type = type; - parser->http.request_or_response = request_or_response; - parser->cur_line_end_length = 2; -} - -void grpc_http_parser_destroy(grpc_http_parser *parser) {} - -void grpc_http_request_destroy(grpc_http_request *request) { - size_t i; - gpr_free(request->body); - for (i = 0; i < request->hdr_count; i++) { - gpr_free(request->hdrs[i].key); - gpr_free(request->hdrs[i].value); - } - gpr_free(request->hdrs); - gpr_free(request->method); - gpr_free(request->path); -} - -void grpc_http_response_destroy(grpc_http_response *response) { - size_t i; - gpr_free(response->body); - for (i = 0; i < response->hdr_count; i++) { - gpr_free(response->hdrs[i].key); - gpr_free(response->hdrs[i].value); - } - gpr_free(response->hdrs); -} - -grpc_error *grpc_http_parser_parse(grpc_http_parser *parser, gpr_slice slice) { - size_t i; - - for (i = 0; i < GPR_SLICE_LENGTH(slice); i++) { - grpc_error *err = addbyte(parser, GPR_SLICE_START_PTR(slice)[i]); - if (err != GRPC_ERROR_NONE) return err; - } - - return GRPC_ERROR_NONE; -} - -grpc_error *grpc_http_parser_eof(grpc_http_parser *parser) { - if (parser->state != GRPC_HTTP_BODY) { - return GRPC_ERROR_CREATE("Did not finish headers"); - } - return GRPC_ERROR_NONE; -} |