From 34d10931e2bef87b43a6ca39510e99c308daa9bc Mon Sep 17 00:00:00 2001
From: Wez Furlong <wez@php.net>
Date: Sun, 19 Sep 2004 16:58:13 +0000
Subject: [PATCH] Add "no permission" error code.

Add a uri: psuedo driver; it specifies the name of a resource that contains,
as its first line, the actual data source to connect to.
The resource can be a local file, or it can be any resource for which PHP
has a wrapper.

// loads connection data from the file "myapp"
$d = new PDO('uri:myapp');

// lets say that public.db.com has a read-only db open for the public
// their connection data is also published via the web:
// (not so great to resolve this on each request though...)
$d = new PDO('uri:http://public.db.com/pdo-connection-data');
---
 ext/pdo/TODO             |  1 -
 ext/pdo/pdo_dbh.c        | 24 ++++++++++++++++++++++++
 ext/pdo/php_pdo_driver.h |  1 +
 3 files changed, 25 insertions(+), 1 deletion(-)

diff --git a/ext/pdo/TODO b/ext/pdo/TODO
index 43da3fe9a6..b30eab16c2 100755
--- a/ext/pdo/TODO
+++ b/ext/pdo/TODO
@@ -14,7 +14,6 @@ Low-level:
 - LOB support via Streams API
 - persistent handles
 - iterator support
-- "lazy" fetch support
 
 Not-so-low-level:
 - hash key case folding for portabilitiy, ala sqlite.assoc_case, but not using an ini option.
diff --git a/ext/pdo/pdo_dbh.c b/ext/pdo/pdo_dbh.c
index 23503a7303..09a96c39bc 100755
--- a/ext/pdo/pdo_dbh.c
+++ b/ext/pdo/pdo_dbh.c
@@ -63,6 +63,7 @@ void pdo_handle_error(pdo_dbh_t *dbh, pdo_stmt_t *stmt TSRMLS_DC)
 		case PDO_ERR_MISMATCH:			msg = "Mismatch"; break;
 		case PDO_ERR_TRUNCATED:			msg = "Truncated"; break;
 		case PDO_ERR_DISCONNECTED:		msg = "Disconnected"; break;
+		case PDO_ERR_NO_PERM:			msg = "No permission"; break;
 		default:	msg = "<<Invalid>>";
 	}
 
@@ -126,6 +127,19 @@ void pdo_handle_error(pdo_dbh_t *dbh, pdo_stmt_t *stmt TSRMLS_DC)
 	}
 }
 
+static char *dsn_from_uri(char *uri TSRMLS_DC)
+{
+	php_stream *stream;
+	char *dsn = NULL;
+
+	stream = php_stream_open_wrapper(uri, "rb", ENFORCE_SAFE_MODE|REPORT_ERRORS, NULL);
+	if (stream) {
+		dsn = php_stream_get_line(stream, NULL, 0, NULL);
+		php_stream_close(stream);
+	}
+	return dsn;
+}
+
 /* {{{ proto object PDO::__construct(string dsn, string username, string passwd [, array driver_opts])
    */
 static PHP_FUNCTION(dbh_constructor)
@@ -156,6 +170,16 @@ static PHP_FUNCTION(dbh_constructor)
 		return;
 	}
 
+	if (!strncmp(data_source, "uri:", sizeof("uri:")-1)) {
+		/* the specified URI holds connection details */
+		data_source = dsn_from_uri(data_source TSRMLS_CC);
+		if (!data_source) {
+			zend_throw_exception_ex(php_pdo_get_exception(), PDO_ERR_SYNTAX TSRMLS_CC, "invalid data source URI");
+			ZVAL_NULL(object);
+			return;
+		}
+	}
+
 	driver = pdo_find_driver(data_source, colon - data_source);
 
 	if (!driver) {
diff --git a/ext/pdo/php_pdo_driver.h b/ext/pdo/php_pdo_driver.h
index 2acd860b92..f80efd2d8f 100755
--- a/ext/pdo/php_pdo_driver.h
+++ b/ext/pdo/php_pdo_driver.h
@@ -95,6 +95,7 @@ enum pdo_error_type {
 	PDO_ERR_MISMATCH,
 	PDO_ERR_TRUNCATED,
 	PDO_ERR_DISCONNECTED,
+	PDO_ERR_NO_PERM,
 };
 
 enum pdo_error_mode {
-- 
2.50.1