Make the screenshot file name a clickable linkHEADmaster

Some security checks are done because players might also write
"screenshot:" in the chat to create file:// URLs and `SDL_OpenURL` can
be used to open many things. So we disallow ".." and require a ".png"
extension.

1 files changed, 11 insertions, 2 deletions

diff --git a/src/utils/stringutils.h b/src/utils/stringutils.h
index 8dd4454a..885ddcb8 100644
--- a/src/utils/stringutils.h
+++ b/src/utils/stringutils.h
@@ -117,9 +117,18 @@ std::string &removeColors(std::string &msg);
 /**
  * Returns whether a string starts with a given prefix.
  */
-inline bool startsWith(const std::string &str, const char *prefix)
+inline bool startsWith(std::string_view str, std::string_view prefix)
 {
-    return str.rfind(prefix, 0) == 0;
+    return str.substr(0, prefix.size()) == prefix;
+}
+
+/**
+ * Returns whether a string ends with a given suffix.
+ */
+inline bool endsWith(std::string_view str, std::string_view suffix)
+{
+    return str.size() >= suffix.size() &&
+           str.compare(str.size() - suffix.size(), suffix.size(), suffix) == 0;
 }
 
 /**