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Added GCDWebServerNormalizePath() API

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This commit is contained in:
Pierre-Olivier Latour
2019-01-04 18:58:43 -08:00
parent 79d9fb389c
commit ec800b43d5
3 changed files with 39 additions and 0 deletions
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19
Frameworks/Tests.m
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@@ -1,6 +1,8 @@
#import <GCDWebServers/GCDWebServers.h>
#import <XCTest/XCTest.h>
#pragma clang diagnostic ignored "-Weverything" // Prevent "messaging to unqualified id" warnings
@interface Tests : XCTestCase
@end
@@ -21,4 +23,21 @@
XCTAssertNotNil(server);
}
- (void)testPaths {
XCTAssertEqualObjects(GCDWebServerNormalizePath(@""), @"");
XCTAssertEqualObjects(GCDWebServerNormalizePath(@"/foo/"), @"/foo");
XCTAssertEqualObjects(GCDWebServerNormalizePath(@"foo/bar"), @"foo/bar");
XCTAssertEqualObjects(GCDWebServerNormalizePath(@"foo//bar"), @"foo/bar");
XCTAssertEqualObjects(GCDWebServerNormalizePath(@"foo/bar//"), @"foo/bar");
XCTAssertEqualObjects(GCDWebServerNormalizePath(@"foo/./bar"), @"foo/bar");
XCTAssertEqualObjects(GCDWebServerNormalizePath(@"foo/bar/."), @"foo/bar");
XCTAssertEqualObjects(GCDWebServerNormalizePath(@"foo/../bar"), @"bar");
XCTAssertEqualObjects(GCDWebServerNormalizePath(@"/foo/../bar"), @"/bar");
XCTAssertEqualObjects(GCDWebServerNormalizePath(@"/foo/.."), @"/");
XCTAssertEqualObjects(GCDWebServerNormalizePath(@"/.."), @"/");
XCTAssertEqualObjects(GCDWebServerNormalizePath(@"."), @"");
XCTAssertEqualObjects(GCDWebServerNormalizePath(@".."), @"");
XCTAssertEqualObjects(GCDWebServerNormalizePath(@"../.."), @"");
}
@end

5
GCDWebServer/Core/GCDWebServerFunctions.h
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@@ -102,6 +102,11 @@ NSString* GCDWebServerFormatISO8601(NSDate* date);
*/
NSDate* _Nullable GCDWebServerParseISO8601(NSString* string);
/**
* Removes "//", "/./" and "/../" components from path as well as any trailing slash.
*/
NSString* GCDWebServerNormalizePath(NSString* path);
#ifdef __cplusplus
}
#endif

15
GCDWebServer/Core/GCDWebServerFunctions.m
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@@ -314,3 +314,18 @@ NSString* GCDWebServerComputeMD5Digest(NSString* format, ...) {
buffer[2 * CC_MD5_DIGEST_LENGTH] = 0;
return (NSString*)[NSString stringWithUTF8String:buffer];
}
NSString* GCDWebServerNormalizePath(NSString* path) {
NSMutableArray* components = [[NSMutableArray alloc] init];
for (NSString* component in [path componentsSeparatedByString:@"/"]) {
if ([component isEqualToString:@".."]) {
[components removeLastObject];
} else if (component.length && ![component isEqualToString:@"."]) {
[components addObject:component];
}
}
if (path.length && ([path characterAtIndex:0] == '/')) {
return [@"/" stringByAppendingString:[components componentsJoinedByString:@"/"]]; // Preserve initial slash
}
return [components componentsJoinedByString:@"/"];
}