nginx 模块开发实例
#include#include
#include
#include
static ngx_int_t ngx_http_mytest_handler(ngx_http_request_t * r)
{
if (!(r->method & (NGX_HTTP_GET | NGX_HTTP_HEAD))) {
return NGX_HTTP_NOT_ALLOWED;
}
ngx_int_t rc = ngx_http_discard_request_body(r);
if (rc != NGX_OK) {
return rc;
}
ngx_str_t type = ngx_string("text/plain");
ngx_str_t response = ngx_string("Hello World!");
r->headers_out.status = NGX_HTTP_OK;
r->headers_out.content_length_n = response.len;
r->headers_out.content_type = type;
rc = ngx_http_send_header(r);
if (rc == NGX_ERROR || rc > NGX_OK || r->header_only) {
return rc;
}
ngx_buf_t *b;
b = ngx_create_temp_buf(r->pool, response.len);
if (b == NULL) {
return NGX_HTTP_INTERNAL_SERVER_ERROR;}
ngx_memcpy(b->pos, response.data, response.len);
b->last = b->pos + response.len;
b->last_buf = 1;
ngx_chain_t out;
out.buf = b;
out.next = NULL;
return ngx_http_output_filter(r, &out);
}
static char *ngx_http_mytest(ngx_conf_t * cf, ngx_command_t * cmd, void *conf)
{
ngx_http_core_loc_conf_t *clcf;
clcf = ngx_http_conf_get_module_loc_conf(cf, ngx_http_core_module);
clcf->handler = ngx_http_mytest_handler;
return NGX_CONF_OK;
};
static ngx_command_t ngx_http_mytest_commands[] = {
{
ngx_string("mytest"),
NGX_HTTP_MAIN_CONF | NGX_HTTP_SRV_CONF | NGX_HTTP_LOC_CONF |
NGX_HTTP_LMT_CONF | NGX_CONF_NOARGS,
ngx_http_mytest,
NGX_HTTP_LOC_CONF_OFFSET,
0,
NULL},
ngx_null_command
};static ngx_http_module_t ngx_http_mytest_module_ctx = {
NULL,
NULL,
NULL,
NULL,
NULL,
NULL,
NULL,
NULL
};
ngx_module_t ngx_http_mytest_module = {
NGX_MODULE_V1,
&ngx_http_mytest_module_ctx,
ngx_http_mytest_commands,
NGX_HTTP_MODULE,
NULL,
NULL,
NULL,
NULL,
NULL,
NULL,
NULL,
NGX_MODULE_V1_PADDING
};
编译此源码的config文件如下:
ngx_addon_name=ngx_http_mytest_module
HTTP_MODULES="$HTTP_MODULES ngx_http_mytest_module"
NGX_ADDON_SRCS="$NGX_ADDON_SRCS $ngx_addon_dir/ngx_http_mytest_module.c"
把此模块编译进nginx:
./configure --prefix=/home/nginx --add-module=/home/dongsy/nginx-1.8.0/ngx_http_mytest_module/
.c文件和 config文件在/home/dongsy/nginx-1.8.0/ngx_http_mytest_module/ 目录下
/home/nginx 为安装目录
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