[Mailer] Throw TransportException when unable to read from socket

xdanik · xdanik · commit 83e4e06ff946 · 2023-12-20T14:33:28.000+01:00
diff --git a/src/Symfony/Component/Mailer/Transport/Smtp/Stream/AbstractStream.php b/src/Symfony/Component/Mailer/Transport/Smtp/Stream/AbstractStream.php
@@ -74,7 +74,7 @@ public function readLine(): string
             return '';
         }
 
-        $line = fgets($this->out);
+        $line = @fgets($this->out);
         if ('' === $line || false === $line) {
             $metas = stream_get_meta_data($this->out);
             if ($metas['timed_out']) {
@@ -83,6 +83,9 @@ public function readLine(): string
             if ($metas['eof']) {
                 throw new TransportException(sprintf('Connection to "%s" has been closed unexpectedly.', $this->getReadConnectionDescription()));
             }
+            if (false === $line) {
+                throw new TransportException(sprintf('Unable to read from connection to "%s".', $this->getReadConnectionDescription()));
+            }
         }
 
         $this->debug .= sprintf('< %s', $line);

Original file line number	Diff line number	Diff line change
`@@ -74,7 +74,7 @@ public function readLine(): string`
`74`	`74`	`return '';`
`75`	`75`	`}`
`76`	`76`
`77`		`- $line = fgets($this->out);`
	`77`	`+ $line = @fgets($this->out);`
`78`	`78`	`if ('' === $line \|\| false === $line) {`
`79`	`79`	`$metas = stream_get_meta_data($this->out);`
`80`	`80`	`if ($metas['timed_out']) {`
`@@ -83,6 +83,9 @@ public function readLine(): string`
`83`	`83`	`if ($metas['eof']) {`
`84`	`84`	`throw new TransportException(sprintf('Connection to "%s" has been closed unexpectedly.', $this->getReadConnectionDescription()));`
`85`	`85`	`}`
	`86`	`+ if (false === $line) {`
	`87`	`+ throw new TransportException(sprintf('Unable to read from connection to "%s".', $this->getReadConnectionDescription()));`
	`88`	`+ }`
`86`	`89`	`}`
`87`	`90`
`88`	`91`	`$this->debug .= sprintf('< %s', $line);`