nginx-0.0.7-2004-07-16-21:11:43 import
diff --git a/src/http/modules/ngx_http_ssl_filter.c b/src/http/modules/ngx_http_ssl_module.c
similarity index 85%
rename from src/http/modules/ngx_http_ssl_filter.c
rename to src/http/modules/ngx_http_ssl_module.c
index 1d370be..3a8b863 100644
--- a/src/http/modules/ngx_http_ssl_filter.c
+++ b/src/http/modules/ngx_http_ssl_module.c
@@ -11,10 +11,9 @@
 static void *ngx_http_ssl_create_srv_conf(ngx_conf_t *cf);
 static char *ngx_http_ssl_merge_srv_conf(ngx_conf_t *cf,
                                          void *parent, void *child);
-static ngx_int_t ngx_http_ssl_init_process(ngx_cycle_t *cycle);
 
 
-static ngx_command_t  ngx_http_charset_filter_commands[] = {
+static ngx_command_t  ngx_http_ssl_commands[] = {
 
     { ngx_string("ssl"),
       NGX_HTTP_SRV_CONF|NGX_CONF_FLAG,
@@ -41,7 +40,7 @@
 };
 
 
-static ngx_http_module_t  ngx_http_ssl_filter_module_ctx = {
+static ngx_http_module_t  ngx_http_ssl_module_ctx = {
     NULL,                                  /* pre conf */
 
     NULL,                                  /* create main configuration */
@@ -55,13 +54,13 @@
 };
 
 
-ngx_module_t  ngx_http_ssl_filter_module = {
+ngx_module_t  ngx_http_ssl_module = {
     NGX_MODULE,
-    &ngx_http_ssl_filter_module_ctx,       /* module context */
-    ngx_http_charset_filter_commands,      /* module directives */
+    &ngx_http_ssl_module_ctx,              /* module context */
+    ngx_http_ssl_commands,                 /* module directives */
     NGX_HTTP_MODULE,                       /* module type */
     NULL,                                  /* init module */
-    ngx_http_ssl_init_process              /* init process */
+    NULL                                   /* init process */
 };
 
 
@@ -102,13 +101,13 @@
     conf->ssl_ctx = SSL_CTX_new(SSLv23_server_method());
 
     if (conf->ssl_ctx == NULL) {
-        ngx_ssl_error(NGX_LOG_EMERG, cf->log, "SSL_CTX_new() failed");
+        ngx_ssl_error(NGX_LOG_EMERG, cf->log, 0, "SSL_CTX_new() failed");
         return NGX_CONF_ERROR;
     }
 
     if (SSL_CTX_use_certificate_file(conf->ssl_ctx, conf->certificate.data,
                                      SSL_FILETYPE_PEM) == 0) {
-        ngx_ssl_error(NGX_LOG_EMERG, cf->log,
+        ngx_ssl_error(NGX_LOG_EMERG, cf->log, 0,
                       "SSL_CTX_use_certificate_file(\"%s\") failed",
                       conf->certificate.data);
         return NGX_CONF_ERROR;
@@ -116,7 +115,7 @@
 
     if (SSL_CTX_use_PrivateKey_file(conf->ssl_ctx, conf->certificate_key.data,
                                     SSL_FILETYPE_PEM) == 0) {
-        ngx_ssl_error(NGX_LOG_EMERG, cf->log,
+        ngx_ssl_error(NGX_LOG_EMERG, cf->log, 0,
                       "SSL_CTX_use_PrivateKey_file(\"%s\") failed",
                       conf->certificate_key.data);
         return NGX_CONF_ERROR;
@@ -126,6 +125,8 @@
 }
 
 
+#if 0
+
 static ngx_int_t ngx_http_ssl_init_process(ngx_cycle_t *cycle)
 {
     ngx_uint_t                   i;
@@ -138,7 +139,7 @@
     cscfp = cmcf->servers.elts;
 
     for (i = 0; i < cmcf->servers.nelts; i++) {
-        sscf = cscfp[i]->ctx->srv_conf[ngx_http_ssl_filter_module.ctx_index];
+        sscf = cscfp[i]->ctx->srv_conf[ngx_http_ssl_module.ctx_index];
 
         if (sscf->enable) {
             cscfp[i]->recv = ngx_ssl_recv;
@@ -148,3 +149,5 @@
 
     return NGX_OK;
 }
+
+#endif
diff --git a/src/http/modules/ngx_http_ssl_filter.h b/src/http/modules/ngx_http_ssl_module.h
similarity index 75%
rename from src/http/modules/ngx_http_ssl_filter.h
rename to src/http/modules/ngx_http_ssl_module.h
index a42ee91..2bb1fe1 100644
--- a/src/http/modules/ngx_http_ssl_filter.h
+++ b/src/http/modules/ngx_http_ssl_module.h
@@ -1,5 +1,5 @@
-#ifndef _NGX_HTTP_SSL_FILTER_H_INCLUDED_
-#define _NGX_HTTP_SSL_FILTER_H_INCLUDED_
+#ifndef _NGX_HTTP_SSL_H_INCLUDED_
+#define _NGX_HTTP_SSL_H_INCLUDED_
 
 
 #include <ngx_config.h>
@@ -24,7 +24,7 @@
 void ngx_http_ssl_close_connection(SSL *ssl, ngx_log_t *log);
 
 
-extern ngx_module_t  ngx_http_ssl_filter_module;
+extern ngx_module_t  ngx_http_ssl_module;
 
 
-#endif /* _NGX_HTTP_SSL_FILTER_H_INCLUDED_ */
+#endif /* _NGX_HTTP_SSL_H_INCLUDED_ */
diff --git a/src/http/modules/proxy/ngx_http_proxy_handler.h b/src/http/modules/proxy/ngx_http_proxy_handler.h
index c89e971..fa86982 100644
--- a/src/http/modules/proxy/ngx_http_proxy_handler.h
+++ b/src/http/modules/proxy/ngx_http_proxy_handler.h
@@ -203,7 +203,7 @@
 } ngx_http_proxy_log_ctx_t;
 
 
-#define NGX_HTTP_PROXY_PARSE_NO_HEADER       20
+#define NGX_HTTP_PROXY_PARSE_NO_HEADER       30
 
 
 #define NGX_HTTP_PROXY_FT_ERROR              0x02
diff --git a/src/http/ngx_http.h b/src/http/ngx_http.h
index 44edd15..145082f 100644
--- a/src/http/ngx_http.h
+++ b/src/http/ngx_http.h
@@ -21,8 +21,8 @@
 #include <ngx_http_log_handler.h>
 #include <ngx_http_core_module.h>
 
-#if (NGX_OPENSSL)
-#include <ngx_http_ssl_filter.h>
+#if (NGX_HTTP_SSL)
+#include <ngx_http_ssl_module.h>
 #endif
 
 
diff --git a/src/http/ngx_http_config.h b/src/http/ngx_http_config.h
index 647566a..d2fb8a9 100644
--- a/src/http/ngx_http_config.h
+++ b/src/http/ngx_http_config.h
@@ -45,8 +45,11 @@
 
 #define ngx_http_conf_get_module_main_conf(cf, module)                        \
             ((ngx_http_conf_ctx_t *) cf->ctx)->main_conf[module.ctx_index]
-#define ngx_http_conf_get_module_srv_conf(cf, module)                         \
-        ngx_http_conf_get_module_srv_conf_could_not_be_implemented()
+/*
+ * ngx_http_conf_get_module_srv_conf() and ngx_http_conf_get_module_loc_conf()
+ * could not be correctly implemented because at the merge phase cf->ctx
+ * points to http{}'s ctx
+ */
 
 #define ngx_http_cycle_get_module_main_conf(cycle, module)                    \
        ((ngx_http_conf_ctx_t *)                                               \
diff --git a/src/http/ngx_http_core_module.c b/src/http/ngx_http_core_module.c
index dc6e873..911a5aa 100644
--- a/src/http/ngx_http_core_module.c
+++ b/src/http/ngx_http_core_module.c
@@ -18,7 +18,6 @@
 static char *ngx_http_core_merge_loc_conf(ngx_conf_t *cf,
                                           void *parent, void *child);
 
-static ngx_int_t ngx_http_core_init_process(ngx_cycle_t *cycle);
 static char *ngx_server_block(ngx_conf_t *cf, ngx_command_t *cmd, void *dummy);
 static int ngx_cmp_locations(const void *first, const void *second);
 static char *ngx_location_block(ngx_conf_t *cf, ngx_command_t *cmd,
@@ -304,7 +303,7 @@
     ngx_http_core_commands,                /* module directives */
     NGX_HTTP_MODULE,                       /* module type */
     NULL,                                  /* init module */
-    ngx_http_core_init_process             /* init process */
+    NULL                                   /* init process */
 };
 
 
@@ -822,6 +821,8 @@
 #endif
 
 
+#if 0
+
 static ngx_int_t ngx_http_core_init_process(ngx_cycle_t *cycle)
 {
     ngx_uint_t                   i;
@@ -853,6 +854,8 @@
     return NGX_OK;
 }
 
+#endif
+
 
 static char *ngx_server_block(ngx_conf_t *cf, ngx_command_t *cmd, void *dummy)
 {
diff --git a/src/http/ngx_http_core_module.h b/src/http/ngx_http_core_module.h
index 98e020b..b71979b 100644
--- a/src/http/ngx_http_core_module.h
+++ b/src/http/ngx_http_core_module.h
@@ -47,9 +47,6 @@
 
 
 typedef struct {
-    ngx_recv_pt           recv;
-    ngx_send_chain_pt     send_chain;
-
     /*
      * array of ngx_http_core_loc_conf_t, used in the translation handler
      * and in the merge phase
diff --git a/src/http/ngx_http_request.c b/src/http/ngx_http_request.c
index 302b924..e1463ba 100644
--- a/src/http/ngx_http_request.c
+++ b/src/http/ngx_http_request.c
@@ -6,6 +6,9 @@
 
 
 static void ngx_http_init_request(ngx_event_t *ev);
+#if (NGX_HTTP_SSL)
+static void ngx_http_check_ssl_handshake(ngx_event_t *rev);
+#endif
 static void ngx_http_process_request_line(ngx_event_t *rev);
 static void ngx_http_process_request_headers(ngx_event_t *rev);
 static ssize_t ngx_http_read_request_header(ngx_http_request_t *r);
@@ -40,6 +43,7 @@
     "client %s sent HTTP/1.1 request without \"Host\" header, URL: %s",
     "client %s sent invalid \"Content-Length\" header, URL: %s",
     "client %s sent POST method without \"Content-Length\" header, URL: %s",
+    "client %s sent plain HTTP request to HTTPS port, URL: %s",
     "client %s sent invalid \"Host\" header \"%s\", URL: %s"
 };
 
@@ -232,16 +236,24 @@
     r->srv_conf = cscf->ctx->srv_conf;
     r->loc_conf = cscf->ctx->loc_conf;
 
+    rev->event_handler = ngx_http_process_request_line;
+
+    r->recv = ngx_recv;
+    r->send_chain = ngx_send_chain;
+
 #if (NGX_HTTP_SSL)
 
-    sscf = ngx_http_get_module_srv_conf(r, ngx_http_ssl_filter_module);
+    sscf = ngx_http_get_module_srv_conf(r, ngx_http_ssl_module);
     if (sscf->enable) {
-        if (ngx_ssl_create_session(sscf->ssl_ctx, c) == NGX_ERROR) {
+        if (ngx_ssl_create_session(sscf->ssl_ctx, c, NGX_SSL_BUFFER)
+                                                                  == NGX_ERROR)
+        {
             ngx_http_close_connection(c);
             return;
         }
 
         r->filter_need_in_memory = 1;
+        rev->event_handler = ngx_http_check_ssl_handshake;
     }
 
 #endif
@@ -321,10 +333,58 @@
 
     r->http_state = NGX_HTTP_READING_REQUEST_STATE;
 
+    rev->event_handler(rev);
+}
+
+
+#if (NGX_HTTP_SSL)
+
+static void ngx_http_check_ssl_handshake(ngx_event_t *rev)
+{
+    int                  n;
+    u_char               buf[1];
+    ngx_connection_t    *c;
+    ngx_http_request_t  *r;
+
+    c = rev->data;
+    r = c->data;
+
+    ngx_log_debug0(NGX_LOG_DEBUG_HTTP, rev->log, 0,
+                   "http check ssl handshake");
+
+    if (rev->timedout) {
+        ngx_http_client_error(r, 0, NGX_HTTP_REQUEST_TIME_OUT);
+        return;
+    }
+
+    n = recv(c->fd, buf, 1, MSG_PEEK); 
+
+    if (n == -1 && ngx_socket_errno == NGX_EAGAIN) {
+        return;
+    }
+
+    if (n == 1) {
+        if (buf[0] == 0x80 /* SSLv2 */ || buf[0] == 0x16 /* SSLv3/TLSv1 */) {
+            ngx_log_debug1(NGX_LOG_DEBUG_HTTP, rev->log, 0,
+                           "https ssl handshake: 0x%X", buf[0]);
+
+            r->recv = ngx_ssl_recv;
+            r->send_chain = ngx_ssl_send_chain;
+
+        } else {
+            ngx_log_debug0(NGX_LOG_DEBUG_HTTP, rev->log, 0,
+                           "plain http");
+
+            r->plain_http = 1;
+        }
+    }
+
     rev->event_handler = ngx_http_process_request_line;
     ngx_http_process_request_line(rev);
 }
 
+#endif
+
 
 static void ngx_http_process_request_line(ngx_event_t *rev)
 {
@@ -832,13 +892,12 @@
         return NGX_AGAIN;
     }
 
-    cscf = ngx_http_get_module_srv_conf(r, ngx_http_core_module);
-
-    n = cscf->recv(r->connection, r->header_in->last,
-                   r->header_in->end - r->header_in->last);
+    n = r->recv(r->connection, r->header_in->last,
+                r->header_in->end - r->header_in->last);
 
     if (n == NGX_AGAIN) {
         if (!r->header_timeout_set) {
+            cscf = ngx_http_get_module_srv_conf(r, ngx_http_core_module);
             ngx_add_timer(rev, cscf->client_header_timeout);
             r->header_timeout_set = 1;
         }
@@ -939,6 +998,10 @@
         return NGX_HTTP_PARSE_POST_WO_CL_HEADER;
     }
 
+    if (r->plain_http) {
+        return NGX_HTTP_PARSE_HTTP_TO_HTTPS;
+    }
+
     if (r->headers_in.connection) {
         if (r->headers_in.connection->value.len == 5
             && ngx_strcasecmp(r->headers_in.connection->value.data, "close")
@@ -1873,7 +1936,9 @@
     r->connection->log->handler = NULL;
 
     if (ctx->url) {
-        if (client_error == NGX_HTTP_PARSE_INVALID_HOST) {
+        switch (client_error) {
+
+        case NGX_HTTP_PARSE_INVALID_HOST:
             ngx_log_error(NGX_LOG_ERR, r->connection->log, 0,
                     client_header_errors[client_error - NGX_HTTP_CLIENT_ERROR],
                     ctx->client, r->headers_in.host->value.data, ctx->url);
@@ -1888,7 +1953,14 @@
                 return;
             }
 
-        } else {
+            break;
+
+        case NGX_HTTP_PARSE_HTTP_TO_HTTPS:
+            error = NGX_HTTP_TO_HTTPS;
+
+            /* fall through */
+
+        default:
             ngx_log_error(NGX_LOG_ERR, r->connection->log, 0,
                     client_header_errors[client_error - NGX_HTTP_CLIENT_ERROR],
                     ctx->client, ctx->url);
diff --git a/src/http/ngx_http_request.h b/src/http/ngx_http_request.h
index 7abd57f..a80e0a5 100644
--- a/src/http/ngx_http_request.h
+++ b/src/http/ngx_http_request.h
@@ -31,7 +31,8 @@
 #define NGX_HTTP_PARSE_NO_HOST_HEADER      16
 #define NGX_HTTP_PARSE_INVALID_CL_HEADER   17
 #define NGX_HTTP_PARSE_POST_WO_CL_HEADER   18
-#define NGX_HTTP_PARSE_INVALID_HOST        19
+#define NGX_HTTP_PARSE_HTTP_TO_HTTPS       19
+#define NGX_HTTP_PARSE_INVALID_HOST        20
 
 
 #define NGX_HTTP_OK                        200
@@ -217,6 +218,9 @@
 
     ngx_connection_t         *connection;
 
+    ngx_recv_pt               recv;
+    ngx_send_chain_pt         send_chain;
+
     void                    **ctx;
     void                    **main_conf;
     void                    **srv_conf;
@@ -292,6 +296,7 @@
     /* can we use sendfile ? */
     unsigned             sendfile:1;
 
+    unsigned             plain_http:1;
     unsigned             chunked:1;
     unsigned             header_only:1;
     unsigned             keepalive:1;
diff --git a/src/http/ngx_http_write_filter.c b/src/http/ngx_http_write_filter.c
index 5d45f37..8b1447a 100644
--- a/src/http/ngx_http_write_filter.c
+++ b/src/http/ngx_http_write_filter.c
@@ -7,6 +7,9 @@
 
 typedef struct {
     ngx_chain_t  *out;
+
+ /* unsigned      flush:1; */
+    ngx_uint_t    flush;
 } ngx_http_write_filter_ctx_t;
 
 
@@ -42,7 +45,6 @@
     int                           last;
     off_t                         size, flush, sent;
     ngx_chain_t                  *cl, *ln, **ll, *chain;
-    ngx_http_core_srv_conf_t     *cscf;
     ngx_http_core_loc_conf_t     *clcf;
     ngx_http_write_filter_ctx_t  *ctx;
 
@@ -114,7 +116,7 @@
         return NGX_AGAIN;
     }
 
-    if (size == 0) {
+    if (size == 0 && !ctx->flush) {
         if (!last) {
             ngx_log_error(NGX_LOG_ALERT, r->connection->log, 0,
                           "the http output chain is empty");
@@ -124,11 +126,8 @@
 
     sent = r->connection->sent;
 
-    cscf = ngx_http_get_module_srv_conf(r, ngx_http_core_module);
-
-    chain = cscf->send_chain(r->connection, ctx->out,
-                             clcf->limit_rate ? clcf->limit_rate:
-                                                OFF_T_MAX_VALUE);
+    chain = r->send_chain(r->connection, ctx->out,
+                          clcf->limit_rate ? clcf->limit_rate: OFF_T_MAX_VALUE);
 
     ngx_log_debug1(NGX_LOG_DEBUG_HTTP, r->connection->log, 0,
                    "http write filter %X", chain);
@@ -144,6 +143,12 @@
         return NGX_ERROR;
     }
 
+    if (chain == NGX_CHAIN_AGAIN) {
+        ctx->out = NULL;
+        ctx->flush = 1;
+        return NGX_AGAIN;
+    }
+
     ctx->out = chain;
 
     if (chain == NULL) {