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diff --git a/src/aphront/configuration/AphrontApplicationConfiguration.php b/src/aphront/configuration/AphrontApplicationConfiguration.php
--- a/src/aphront/configuration/AphrontApplicationConfiguration.php
+++ b/src/aphront/configuration/AphrontApplicationConfiguration.php
@@ -312,11 +312,17 @@
if ($response_exception) {
// If we encountered an exception while building a normal response, then
// encountered another exception while building a response for the first
- // exception, just throw the original exception. It is more likely to be
- // useful and point at a root cause than the second exception we ran into
- // while telling the user about it.
+ // exception, throw an aggregate exception that will be unpacked by the
+ // higher-level handler. This is above our pay grade.
if ($original_exception) {
- throw $original_exception;
+ throw new PhutilAggregateException(
+ pht(
+ 'Encountered a processing exception, then another exception when '.
+ 'trying to build a response for the first exception.'),
+ array(
+ $response_exception,
+ $original_exception,
+ ));
}
// If we built a response successfully and then ran into an exception
diff --git a/src/aphront/response/AphrontUnhandledExceptionResponse.php b/src/aphront/response/AphrontUnhandledExceptionResponse.php
--- a/src/aphront/response/AphrontUnhandledExceptionResponse.php
+++ b/src/aphront/response/AphrontUnhandledExceptionResponse.php
@@ -61,9 +61,39 @@
return 'unhandled-exception';
}
+ private function getExceptionList() {
+ return $this->expandException($this->exception);
+ }
+
+ private function expandException($root) {
+ if ($root instanceof PhutilAggregateException) {
+ $list = array();
+
+ $list[] = $root;
+
+ foreach ($root->getExceptions() as $ex) {
+ foreach ($this->expandException($ex) as $child) {
+ $list[] = $child;
+ }
+ }
+
+ return $list;
+ }
+
+ return array($root);
+ }
+
protected function getResponseBody() {
- $ex = $this->exception;
+ $body = array();
+
+ foreach ($this->getExceptionList() as $ex) {
+ $body[] = $this->newHTMLMessage($ex);
+ }
+
+ return $body;
+ }
+ private function newHTMLMessage($ex) {
if ($ex instanceof AphrontMalformedRequestException) {
$title = $ex->getTitle();
} else {
@@ -122,12 +152,20 @@
}
protected function buildPlainTextResponseString() {
- $ex = $this->exception;
+ $messages = array();
+
+ foreach ($this->getExceptionList() as $exception) {
+ $messages[] = $this->newPlainTextMessage($exception);
+ }
+
+ return implode("\n\n", $messages);
+ }
+ private function newPlainTextMessage($exception) {
return pht(
'%s: %s',
- get_class($ex),
- $ex->getMessage());
+ get_class($exception),
+ $exception->getMessage());
}
}

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