add etag support and if-none-match/if-modified-since to cocoa http handling

1 files changed, 31 insertions, 0 deletions

diff --git a/common/osx.mm b/common/osx.mm
new file mode 100644
index 0000000000..974ea537cb
--- /dev/null
+++ b/common/osx.mm
@@ -0,0 +1,31 @@
+#import <Foundation/Foundation.h>
+
+#include <mbgl/platform/platform.hpp>
+
+namespace mbgl {
+namespace platform {
+
+// Returns the path to the default cache database on this system.
+std::string defaultCacheDatabase() {
+    NSArray *paths =
+        NSSearchPathForDirectoriesInDomains(NSApplicationSupportDirectory, NSUserDomainMask, YES);
+    if ([paths count] == 0) {
+        // Disable the cache if we don't have a location to write.
+        return "";
+    }
+
+    NSString *path = [[paths objectAtIndex:0] stringByAppendingPathComponent:@"Mapbox GL"];
+
+    if (![[NSFileManager defaultManager] createDirectoryAtPath:path
+                                   withIntermediateDirectories:YES
+                                                    attributes:nil
+                                                         error:nil]) {
+        // Disable the cache if we couldn't create the directory.
+        return "";
+    }
+
+    return [[path stringByAppendingPathComponent:@"cache.db"] UTF8String];
+}
+
+}
+}