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#27 Initial pass at HTTP range requests support

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This commit is contained in:
Pierre-Olivier Latour
2014-03-19 20:57:35 -07:00
parent 096b07a201
commit 1e99e91407
5 changed files with 105 additions and 7 deletions
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CGDWebServer/GCDWebServerRequest.m
+32 -2
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@@ -46,6 +46,7 @@ enum {
NSDictionary* _query;
NSString* _type;
NSUInteger _length;
NSRange _range;
}
@end
@@ -133,7 +134,7 @@ static NSStringEncoding _StringEncodingFromCharset(NSString* charset) {
@implementation GCDWebServerRequest : NSObject
@synthesize method=_method, URL=_url, headers=_headers, path=_path, query=_query, contentType=_type, contentLength=_length;
@synthesize method=_method, URL=_url, headers=_headers, path=_path, query=_query, contentType=_type, contentLength=_length, byteRange=_range;
- (id)initWithMethod:(NSString*)method url:(NSURL*)url headers:(NSDictionary*)headers path:(NSString*)path query:(NSDictionary*)query {
if ((self = [super init])) {
@@ -151,10 +152,39 @@ static NSStringEncoding _StringEncodingFromCharset(NSString* charset) {
return nil;
}
_length = length;
if ((_length > 0) && (_type == nil)) {
_type = [kGCDWebServerDefaultMimeType copy];
}
_range = NSMakeRange(NSNotFound, 0);
NSString* rangeHeader = [[_headers objectForKey:@"Range"] lowercaseString];
if (rangeHeader) {
if ([rangeHeader hasPrefix:@"bytes="]) {
NSArray* components = [[rangeHeader substringFromIndex:6] componentsSeparatedByString:@","];
if (components.count == 1) {
components = [[components firstObject] componentsSeparatedByString:@"-"];
if (components.count == 2) {
NSString* startString = [components objectAtIndex:0];
NSInteger startValue = [startString integerValue];
NSString* endString = [components objectAtIndex:1];
NSInteger endValue = [endString integerValue];
if (startString.length && (startValue >= 0) && endString.length && (endValue >= startValue)) { // The second 500 bytes: "500-999"
_range.location = startValue;
_range.length = endValue - startValue + 1;
} else if (startString.length && (startValue >= 0)) { // The bytes after 9500 bytes: "9500-"
_range.location = startValue;
_range.length = NSUIntegerMax;
} else if (endString.length && (endValue > 0)) { // The final 500 bytes: "-500"
_range.location = NSNotFound;
_range.length = endValue;
}
}
}
}
if ((_range.location == NSNotFound) && (_range.length == 0)) { // Ignore "Range" header if syntactically invalid
LOG_WARNING(@"Failed to parse 'Range' header \"%@\" for url: %@", rangeHeader, url);
}
}
}
return self;
}