c90b932751
*) Feature: the autoconfiguration directives:
--http-client-body-temp-path=PATH, --http-proxy-temp-path=PATH, and
--http-fastcgi-temp-path=PATH
*) Change: the directory name for the temporary files with the client
request body is specified by directive client_body_temp_path, by
default it is <prefix>/client_body_temp.
*) Feature: the ngx_http_fastcgi_module and the directives:
fastcgi_pass, fastcgi_root, fastcgi_index, fastcgi_params,
fastcgi_connect_timeout, fastcgi_send_timeout, fastcgi_read_timeout,
fastcgi_send_lowat, fastcgi_header_buffer_size, fastcgi_buffers,
fastcgi_busy_buffers_size, fastcgi_temp_path,
fastcgi_max_temp_file_size, fastcgi_temp_file_write_size,
fastcgi_next_upstream, and fastcgi_x_powered_by.
*) Bugfix: the "[alert] zero size buf" error; the bug had appeared in
0.1.3.
*) Change: the URI must be specified after the host name in the
proxy_pass directive.
*) Change: the %3F symbol in the URI was considered as the argument
string start.
*) Feature: the unix domain sockets support in the
ngx_http_proxy_module.
*) Feature: the ssl_engine and ssl_ciphers directives.
Thanks to Sergey Skvortsov for SSL-accelerator.
291 lines
7.3 KiB
C
291 lines
7.3 KiB
C
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/*
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* Copyright (C) Igor Sysoev
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*/
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#include <ngx_config.h>
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#include <ngx_core.h>
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#include <ngx_event.h>
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#include <ngx_http.h>
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static void ngx_http_read_client_request_body_handler(ngx_event_t *rev);
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static ngx_int_t ngx_http_do_read_client_request_body(ngx_http_request_t *r,
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ngx_connection_t *c);
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/*
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* on completion ngx_http_read_client_request_body() adds to
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* r->request_body->bufs one or two bufs:
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* *) one memory buf that was preread in r->header_in;
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* *) one memory or file buf that contains the rest of the body
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*/
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ngx_int_t ngx_http_read_client_request_body(ngx_http_request_t *r,
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ngx_http_client_body_handler_pt post_handler)
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{
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ssize_t size;
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ngx_buf_t *b;
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ngx_chain_t *cl;
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ngx_http_request_body_t *rb;
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ngx_http_core_loc_conf_t *clcf;
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if (!(rb = ngx_pcalloc(r->pool, sizeof(ngx_http_request_body_t)))) {
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return NGX_HTTP_INTERNAL_SERVER_ERROR;
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}
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r->request_body = rb;
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if (r->headers_in.content_length_n <= 0) {
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post_handler(r);
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return NGX_OK;
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}
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rb->post_handler = post_handler;
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/*
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* set by ngx_pcalloc():
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*
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* rb->bufs = NULL;
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* rb->buf = NULL;
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* rb->rest = 0;
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*/
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size = r->header_in->last - r->header_in->pos;
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if (size) {
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/* there is the pre-read part of the request body */
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if (!(b = ngx_calloc_buf(r->pool))) {
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return NGX_HTTP_INTERNAL_SERVER_ERROR;
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}
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b->temporary = 1;
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b->start = b->pos = r->header_in->pos;
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b->end = b->last = r->header_in->last;
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if (!(rb->bufs = ngx_alloc_chain_link(r->pool))) {
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return NGX_HTTP_INTERNAL_SERVER_ERROR;
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}
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rb->bufs->buf = b;
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rb->bufs->next = NULL;
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if (size >= r->headers_in.content_length_n) {
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/* the whole request body was pre-read */
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r->header_in->pos += r->headers_in.content_length_n;
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r->request_length += r->headers_in.content_length_n;
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post_handler(r);
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return NGX_OK;
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}
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r->header_in->pos = r->header_in->last;
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r->request_length += size;
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}
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clcf = ngx_http_get_module_loc_conf(r, ngx_http_core_module);
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rb->rest = r->headers_in.content_length_n - size;
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if (rb->rest < clcf->client_body_buffer_size
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+ (clcf->client_body_buffer_size >> 2))
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{
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size = rb->rest;
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} else {
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size = clcf->client_body_buffer_size;
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}
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if (!(rb->buf = ngx_create_temp_buf(r->pool, size))) {
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return NGX_HTTP_INTERNAL_SERVER_ERROR;
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}
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if (!(cl = ngx_alloc_chain_link(r->pool))) {
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return NGX_HTTP_INTERNAL_SERVER_ERROR;
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}
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cl->buf = rb->buf;
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cl->next = NULL;
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if (rb->bufs) {
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rb->bufs->next = cl;
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} else {
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rb->bufs = cl;
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}
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r->connection->read->event_handler =
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ngx_http_read_client_request_body_handler;
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return ngx_http_do_read_client_request_body(r, r->connection);
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}
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static void ngx_http_read_client_request_body_handler(ngx_event_t *rev)
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{
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ngx_int_t rc;
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ngx_connection_t *c;
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ngx_http_request_t *r;
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c = rev->data;
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r = c->data;
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if (rev->timedout) {
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ngx_http_finalize_request(r, NGX_HTTP_REQUEST_TIME_OUT);
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return;
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}
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rc = ngx_http_do_read_client_request_body(r, c);
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if (rc >= NGX_HTTP_SPECIAL_RESPONSE) {
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ngx_http_finalize_request(r, rc);
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}
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}
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static ngx_int_t ngx_http_do_read_client_request_body(ngx_http_request_t *r,
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ngx_connection_t *c)
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{
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size_t size;
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ssize_t n;
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ngx_buf_t *b;
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ngx_temp_file_t *tf;
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ngx_http_request_body_t *rb;
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ngx_http_core_loc_conf_t *clcf;
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rb = r->request_body;
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ngx_log_debug0(NGX_LOG_DEBUG_HTTP, c->log, 0,
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"http read client request body");
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for ( ;; ) {
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if (rb->buf->last == rb->buf->end) {
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if (rb->temp_file == NULL) {
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if (!(tf = ngx_pcalloc(r->pool, sizeof(ngx_temp_file_t)))) {
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return NGX_ERROR;
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}
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clcf = ngx_http_get_module_loc_conf(r, ngx_http_core_module);
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tf->file.fd = NGX_INVALID_FILE;
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tf->file.log = r->connection->log;
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tf->path = clcf->client_body_temp_path;
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tf->pool = r->pool;
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tf->warn = "a client request body is buffered "
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"to a temporary file";
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rb->temp_file = tf;
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}
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n = ngx_write_chain_to_temp_file(rb->temp_file,
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rb->bufs->next ? rb->bufs->next:
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rb->bufs);
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/* TODO: n == 0 or not complete and level event */
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if (n == NGX_ERROR) {
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return NGX_HTTP_INTERNAL_SERVER_ERROR;
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}
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rb->temp_file->offset += n;
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rb->buf->pos = rb->buf->start;
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rb->buf->last = rb->buf->start;
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}
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size = rb->buf->end - rb->buf->last;
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if (size > rb->rest) {
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size = rb->rest;
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}
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n = c->recv(c, rb->buf->last, size);
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ngx_log_debug1(NGX_LOG_DEBUG_HTTP, c->log, 0,
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"http client request body recv %z", n);
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if (n == NGX_AGAIN) {
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clcf = ngx_http_get_module_loc_conf(r, ngx_http_core_module);
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ngx_add_timer(c->read, clcf->client_body_timeout);
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if (ngx_handle_read_event(c->read, 0) == NGX_ERROR) {
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return NGX_HTTP_INTERNAL_SERVER_ERROR;
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}
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return NGX_AGAIN;
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}
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if (n == 0) {
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ngx_log_error(NGX_LOG_INFO, c->log, 0,
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"client closed prematurely connection");
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}
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if (n == 0 || n == NGX_ERROR) {
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r->closed = 1;
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return NGX_HTTP_BAD_REQUEST;
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}
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rb->buf->last += n;
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rb->rest -= n;
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r->request_length += n;
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if (rb->rest == 0) {
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break;
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}
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if (rb->buf->last < rb->buf->end) {
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break;
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}
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}
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ngx_log_debug1(NGX_LOG_DEBUG_HTTP, c->log, 0,
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"http client request body rest %uz", rb->rest);
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if (rb->rest) {
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return NGX_AGAIN;
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}
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if (rb->temp_file) {
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/* save the last part */
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n = ngx_write_chain_to_temp_file(rb->temp_file,
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rb->bufs->next ? rb->bufs->next:
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rb->bufs);
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/* TODO: n == 0 or not complete and level event */
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if (n == NGX_ERROR) {
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return NGX_HTTP_INTERNAL_SERVER_ERROR;
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}
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if (!(b = ngx_calloc_buf(r->pool))) {
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return NGX_HTTP_INTERNAL_SERVER_ERROR;
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}
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b->in_file = 1;
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b->file_pos = 0;
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b->file_last = rb->temp_file->file.offset;
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b->file = &rb->temp_file->file;
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if (rb->bufs->next) {
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rb->bufs->next->buf = b;
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} else {
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rb->bufs->buf = b;
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}
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}
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rb->post_handler(r);
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return NGX_OK;
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}
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