Merge pull request #66 from schmidt9/objective-c

added ignoring logic for requests
evermeer · Aug 26, 2019 · 86a47fa · 86a47fa
2 parents 13915aa + 2826347
commit 86a47fa
Show file tree

Hide file tree

Showing 2 changed files with 37 additions and 0 deletions.
diff --git a/pod/EVURLCache.h b/pod/EVURLCache.h
@@ -27,6 +27,7 @@
 @interface EVURLCache : NSURLCache
 
 +(void)activate;
++(void)setIgnoredMasks:(NSArray<NSString*>*)ignoredMasks;
 +(NSString*)storagePathForRequest:(NSURLRequest*)request;
 +(NSString*)storagePathForRequest:(NSURLRequest*)request rootPath:(NSString*)rootPath;
 

diff --git a/pod/EVURLCache.m b/pod/EVURLCache.m
@@ -14,6 +14,7 @@
 
 static NSString* _cacheDirectory;
 static NSString* _preCacheDirectory;
+static NSArray<NSString*>* _ignoredMasks;
 
 @implementation EVURLCache
 
@@ -32,6 +33,31 @@ +(void)activate
     [NSURLCache setSharedURLCache:urlCache];
 }
 
++(void)setIgnoredMasks:(NSArray<NSString*>*)ignoredMasks {
+    _ignoredMasks = ignoredMasks;
+}
+
+-(BOOL)shouldIgnoreCachedResponseForRequest:(nonnull NSURLRequest *)request
+{
+    for (NSString *mask in _ignoredMasks) {
+        NSError *error;
+        NSRegularExpression *regularExpression = [NSRegularExpression regularExpressionWithPattern:mask
+            options:NSRegularExpressionCaseInsensitive error:&error];
+
+        if (error) {
+            [EVURLCache log:@"Unable to parse ignored mask (%@)", error.localizedDescription];
+            break;
+        }
+
+        NSString *urlString = request.URL.absoluteString;
+
+        if ([regularExpression numberOfMatchesInString:urlString options:0 range:NSMakeRange(0, urlString.length)] > 0) {
+            return YES;
+        }
+    }
+
+    return NO;
+}
 
 // initializing the cache. Only used by the method above.
 -(id)initWithMemoryCapacity:(NSUInteger)memoryCapacity diskCapacity:(NSUInteger)diskCapacity diskPath:(NSString *)diskPath {
@@ -52,6 +78,12 @@ -(NSCachedURLResponse*)cachedResponseForRequest:(NSURLRequest*)request{
         [EVURLCache log:@"CACHE not allowed for emtpy urls"];
         return nil;
     }
+    // If we have saved cache for given response before ignoring rule was set
+    if([self shouldIgnoreCachedResponseForRequest:request])
+    {
+        [EVURLCache log:@"CACHE ignored for %@", request.URL.absoluteString];
+        return nil;
+    }
     // is caching allowed
     if(request.cachePolicy == NSURLRequestReloadIgnoringCacheData || [request.URL.absoluteString hasPrefix:@"file:/"] || ([request.URL.absoluteString hasPrefix:@"data:"] && [EVURLCache networkAvailable]))
     {
@@ -113,6 +145,10 @@ -(NSCachedURLResponse*)cachedResponseForRequest:(NSURLRequest*)request{
 // Will be called by NSURLConnection when a request is complete.
 -(void)storeCachedResponse:(NSCachedURLResponse*)cachedResponse forRequest:(nonnull NSURLRequest *)request
 {
+    if ([self shouldIgnoreCachedResponseForRequest:request]) {
+        return;
+    }
+
     NSFileManager *fileManager = [NSFileManager defaultManager];
     NSHTTPURLResponse *httpResponse = (NSHTTPURLResponse *) cachedResponse.response;
     if(httpResponse != nil && [httpResponse respondsToSelector:@selector(statusCode:)] && httpResponse.statusCode >= 400)