From 7f02187c64bb175a2f3239358b5848f811846573 Mon Sep 17 00:00:00 2001
From: Stef Walter <stef@memberwebs.com>
Date: Mon, 12 Sep 2005 22:49:00 +0000
Subject: Get httpauth to reconnect properly.

---
 apache1x/mod_httpauth.c | 44 ++++++++++++++++++++------------------
 apache2x/mod_httpauth.c | 57 +++++++++++++++++++++++++------------------------
 2 files changed, 52 insertions(+), 49 deletions(-)

diff --git a/apache1x/mod_httpauth.c b/apache1x/mod_httpauth.c
index b7023b0..b2d9945 100644
--- a/apache1x/mod_httpauth.c
+++ b/apache1x/mod_httpauth.c
@@ -154,6 +154,19 @@ static const command_rec httpauth_cmds[] =
  * Socket handling code
  */
 
+void disconnect_socket(httpauth_context_t* ctx, server_rec* s)
+{
+    if(ctx->socket != -1)
+    {
+        ap_log_error(APLOG_MARK, APLOG_DEBUG, s,
+                     "httpauth: disconnecting from daemon");
+
+        ap_pclosesocket(ctx->child_pool, ctx->socket);
+        ctx->socket = -1;
+        errno = 0;
+    }
+}
+
 void read_junk(httpauth_context_t* ctx, request_rec* r)
 {
     char buf[16];
@@ -245,8 +258,8 @@ int read_line(httpauth_context_t* ctx, request_rec* r, char** line)
         /* If it's the end of file then return that */
         else if(l == 0)
         {
-            ap_log_rerror(APLOG_MARK, APLOG_ERR, r,
-                          "httpauth: unexpected end of data from daemon");
+			/* Disconnect from socket quietly so we can reconnect later */
+			disconnect_socket(ctx, r->server);
             return -1;
         }
 
@@ -424,19 +437,6 @@ int read_copy_headers(httpauth_context_t* ctx, int ccode, request_rec* r)
     return 0;
 }
 
-void disconnect_socket(httpauth_context_t* ctx, server_rec* s)
-{
-    if(ctx->socket != -1)
-    {
-        ap_log_error(APLOG_MARK, APLOG_DEBUG, s,
-                     "httpauth: disconnecting from daemon");
-
-        ap_pclosesocket(ctx->child_pool, ctx->socket);
-        ctx->socket = -1;
-        errno = 0;
-    }
-}
-
 int write_data(httpauth_context_t* ctx, server_rec* s, const char* data)
 {
     int r;
@@ -707,7 +707,8 @@ retry:
     read_junk(ctx, r);
 
     /* Send off a request */
-    if(write_request(ctx, r) == -1)
+    if(write_request(ctx, r) == -1 ||
+	   read_response(ctx, r, &code, &ccode, &details) == -1)
     {
         /*
          * If our connection was closed by httpauthd then this
@@ -718,16 +719,17 @@ retry:
 
         if(ctx->socket == -1 && !retried)
         {
+        	ap_log_rerror(APLOG_MARK, APLOG_WARNING, 0, r,
+                		  "httpauth: reconnecting to to httpauthd");
             retried = 1;
             goto retry;
         }
 
-        return SERVER_ERROR;
-    }
+		ap_log_rerror(APLOG_MARK, APLOG_ERR, APR_FROM_OS_ERROR(errno), r,
+					  "httpauth: couldn't send request to httpauthd");
 
-    /* Read a response line */
-    if(read_response(ctx, r, &code, &ccode, &details) == -1)
-        return SERVER_ERROR;
+        return HTTP_INTERNAL_SERVER_ERROR;
+    }
 
     if(code != 200)
     {
diff --git a/apache2x/mod_httpauth.c b/apache2x/mod_httpauth.c
index c6d6e56..b225e5b 100644
--- a/apache2x/mod_httpauth.c
+++ b/apache2x/mod_httpauth.c
@@ -155,6 +155,26 @@ static const command_rec httpauth_cmds[] =
  * Socket handling code
  */
 
+static apr_status_t cleanup_socket(void *fdv)
+{
+	close((int)(long)fdv);
+	return OK;
+}
+
+void disconnect_socket(httpauth_context_t* ctx, server_rec* s)
+{
+    if(ctx->socket != -1)
+    {
+        ap_log_error(APLOG_MARK, APLOG_DEBUG, 0, s,
+                     "httpauth: disconnecting from daemon");
+
+		apr_pool_cleanup_kill(ctx->child_pool, (void*)(long)ctx->socket,
+						      cleanup_socket);
+        close(ctx->socket);
+        ctx->socket = -1;
+    }
+}
+
 void read_junk(httpauth_context_t* ctx, request_rec* r)
 {
     char buf[16];
@@ -245,8 +265,8 @@ int read_line(httpauth_context_t* ctx, request_rec* r, char** line)
         /* If it's the end of file then return that */
         else if(l == 0)
         {
-            ap_log_rerror(APLOG_MARK, APLOG_ERR, 0, r,
-                          "httpauth: unexpected end of data from daemon");
+			/* Disconnect from socket quietly so we can reconnect later */
+			disconnect_socket(ctx, r->server);
             return -1;
         }
 
@@ -423,27 +443,6 @@ int read_copy_headers(httpauth_context_t* ctx, int ccode, request_rec* r)
     return 0;
 }
 
-
-static apr_status_t cleanup_socket(void *fdv)
-{
-	close((int)(long)fdv);
-	return OK;
-}
-
-void disconnect_socket(httpauth_context_t* ctx, server_rec* s)
-{
-    if(ctx->socket != -1)
-    {
-        ap_log_error(APLOG_MARK, APLOG_DEBUG, 0, s,
-                     "httpauth: disconnecting from daemon");
-
-		apr_pool_cleanup_kill(ctx->child_pool, (void*)(long)ctx->socket,
-						      cleanup_socket);
-        close(ctx->socket);
-        ctx->socket = -1;
-    }
-}
-
 int write_data(httpauth_context_t* ctx, server_rec* s, const char* data)
 {
     int r;
@@ -716,7 +715,8 @@ retry:
     read_junk(ctx, r);
 
     /* Send off a request */
-    if(write_request(ctx, r) == -1)
+    if(write_request(ctx, r) == -1 ||
+	   read_response(ctx, r, &code, &ccode, &details) == -1)
     {
         /*
          * If our connection was closed by httpauthd then this
@@ -727,16 +727,17 @@ retry:
 
         if(ctx->socket == -1 && !retried)
         {
+        	ap_log_rerror(APLOG_MARK, APLOG_WARNING, 0, r,
+                		  "httpauth: reconnecting to to httpauthd");
             retried = 1;
             goto retry;
         }
 
-        return HTTP_INTERNAL_SERVER_ERROR;
-    }
+		ap_log_rerror(APLOG_MARK, APLOG_ERR, APR_FROM_OS_ERROR(errno), r,
+					  "httpauth: couldn't send request to httpauthd");
 
-    /* Read a response line */
-    if(read_response(ctx, r, &code, &ccode, &details) == -1)
         return HTTP_INTERNAL_SERVER_ERROR;
+    }
 
     if(code != 200)
     {
-- 
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