src: fix accessing empty string

zcbenz · RafaelGSS · commit e05e2cfb1e03 · 2025-04-17T10:50:55.000-03:00
PR-URL: #57014 Reviewed-By: Yagiz Nizipli <yagiz@nizipli.com> Reviewed-By: Joyee Cheung <joyeec9h3@gmail.com> Reviewed-By: Anna Henningsen <anna@addaleax.net> Reviewed-By: Luigi Pinca <luigipinca@gmail.com> Reviewed-By: Ulises Gascón <ulisesgascongonzalez@gmail.com> Reviewed-By: James M Snell <jasnell@gmail.com>
diff --git a/src/node_dotenv.cc b/src/node_dotenv.cc
@@ -156,7 +156,7 @@ void Dotenv::ParseContent(const std::string_view input) {
     key = trim_spaces(key);
 
     // If the value is not present (e.g. KEY=) set is to an empty string
-    if (content.front() == '\n') {
+    if (content.empty() || content.front() == '\n') {
       store_.insert_or_assign(std::string(key), "");
       continue;
     }

Original file line number	Diff line number	Diff line change
`@@ -156,7 +156,7 @@ void Dotenv::ParseContent(const std::string_view input) {`
`156`	`156`	`key = trim_spaces(key);`
`157`	`157`
`158`	`158`	`// If the value is not present (e.g. KEY=) set is to an empty string`
`159`		`- if (content.front() == '\n') {`
	`159`	`+ if (content.empty() \|\| content.front() == '\n') {`
`160`	`160`	`store_.insert_or_assign(std::string(key), "");`
`161`	`161`	`continue;`
`162`	`162`	`}`