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#include <ngx_config.h>
#include <ngx_core.h>
#include <ngx_http.h>
/* declaration */
typedef struct
{
ngx_flag_t enable;
} ngx_http_twitter_loc_conf_t;
/* prototype */
static char *ngx_http_twitter(ngx_conf_t *cf, ngx_command_t *cmd, void *conf);
static void *ngx_http_twitter_create_loc_conf(ngx_conf_t *cf);
static ngx_command_t ngx_http_twitter_commands[] = {
{
ngx_string("twitter"),
NGX_HTTP_LOC_CONF | NGX_CONF_NOARGS,
ngx_http_twitter, /* implementation */
NGX_HTTP_LOC_CONF_OFFSET,
0,
NULL,
},
ngx_null_command
};
static ngx_http_module_t ngx_http_twitter_module_ctx = {
NULL, /* preconfiguration */
NULL, /* postconfiguration */
NULL, /* create main configuration */
NULL, /* init main configuration */
NULL, /* create server configuration */
NULL, /* merge server configuration */
ngx_http_twitter_create_loc_conf, /* create location configuration */
NULL
};
ngx_module_t ngx_http_twitter_module = {
NGX_MODULE_V1,
&ngx_http_twitter_module_ctx, /* module context */
ngx_http_twitter_commands, /* module directives */
NGX_HTTP_MODULE, /* module type */
NULL, /* init master */
NULL, /* init module */
NULL, /* init process */
NULL, /* init thread */
NULL, /* exit thread */
NULL, /* exit process */
NULL, /* exit master */
NGX_MODULE_V1_PADDING
};
/* delegation */
static ngx_int_t ngx_http_twitter_handler(ngx_http_request_t *r)
{
ngx_int_t rc;
ngx_buf_t *b;
ngx_chain_t out;
unsigned char *buff;
char message[124] = "Hello Twitter";
int l = strlen(message);
ngx_log_error(NGX_LOG_DEBUG, r->connection->log, 0, "***Call Handler***");
if ( !(r->method & (NGX_HTTP_GET | NGX_HTTP_HEAD))) {
return NGX_HTTP_NOT_ALLOWED;
}
rc = ngx_http_discard_request_body(r);
if (rc != NGX_OK && rc != NGX_AGAIN) {
return rc;
}
if (r->headers_in.if_modified_since) {
return NGX_HTTP_NOT_MODIFIED;
}
// header設定
r->headers_out.content_type.len = sizeof("text/html") - 1;
r->headers_out.content_type.data = (u_char *) "text/html";
r->headers_out.status = NGX_HTTP_OK;
r->headers_out.content_length_n = l;
if (r->method == NGX_HTTP_HEAD) {
rc = ngx_http_send_header(r);
if (rc == NGX_ERROR || rc > NGX_OK || r->header_only) {
return rc;
}
}
b = ngx_pcalloc(r->pool, sizeof(ngx_buf_t));
if (b == NULL) {
return NGX_HTTP_INTERNAL_SERVER_ERROR;
}
out.buf = b;
out.next = NULL;
buff = ngx_palloc(r->pool, l);
if (buff == NULL) {
ngx_log_error(NGX_LOG_ERR, r->connection->log, 0, "Failed to allocate memory.");
return NGX_HTTP_INTERNAL_SERVER_ERROR;
}
ngx_memcpy(buff, message, l);
b->pos = buff;
b->last = buff + l;
b->memory = 1;
b->last_buf = 1;
rc = ngx_http_send_header(r);
if (rc == NGX_ERROR || rc > NGX_OK || r->header_only) {
return rc;
}
ngx_log_error(NGX_LOG_DEBUG, r->connection->log, 0, "Success! twitter");
return ngx_http_output_filter(r, &out);
}
/* implementation */
static char *ngx_http_twitter(ngx_conf_t *cf, ngx_command_t *cmd, void *conf)
{
ngx_http_core_loc_conf_t *clcf;
// location設定を取得しHandler設定
clcf = ngx_http_conf_get_module_loc_conf(cf, ngx_http_core_module);
clcf->handler = ngx_http_twitter_handler;
return NGX_CONF_OK;
}
static void *ngx_http_twitter_create_loc_conf(ngx_conf_t *cf)
{
ngx_http_twitter_loc_conf_t *conf;
conf = ngx_pcalloc(cf->pool, sizeof(ngx_http_twitter_loc_conf_t));
if (conf == NULL ) {
return NGX_CONF_ERROR;
}
return conf;
}