New method for RouteRequest class

README.md

@@ -4,6 +4,9 @@ Adds a Sinatra-inspired routing API on top of [CocoaHTTPServer](https://github.c
 
 Supports iOS 4+ and OS X 10.7+
 
+###Changes from trunk:
+- RouteRequest has new method: valueForFormField: This method is used to retrieve values from a submitted form.
+
 ## Installation
 
  1. Add [CocoaHTTPServer](https://github.com/robbiehanson/CocoaHTTPServer) to your project

Source/RouteRequest.h

@@ -12,5 +12,5 @@
 - (NSString *)method;
 - (NSURL *)url;
 - (NSData *)body;
-
+- (NSString *)valueForFormField:(NSString*)field;
 @end

Source/RouteRequest.m

@@ -1,6 +1,12 @@
 #import "RouteRequest.h"
 #import "HTTPMessage.h"
 
+@interface RouteRequest()
+
+@property (strong)NSArray *parameters;
+
+@end
+
 @implementation RouteRequest {
 	HTTPMessage *message;
 }
@@ -11,6 +17,7 @@ - (id)initWithHTTPMessage:(HTTPMessage *)msg parameters:(NSDictionary *)paramete
 	if (self = [super init]) {
 		params = parameters;
 		message = msg;
+        [self parseBody];
 	}
 	return self;
 }
@@ -44,4 +51,39 @@ - (NSString *)description {
 	return [[NSString alloc] initWithData:data encoding:NSASCIIStringEncoding];
 }
 
+- (NSString *)valueForFormField:(NSString*)field {
+    for (NSDictionary *dict in self.parameters) {
+        NSString *name = dict[@"name"];
+        if ([name isEqualToString:field]) {
+            return dict[@"value"];
+        }
+    }
+
+    return nil;
+}
+
+-(void) parseBody {
+    NSString *body =  [[NSString alloc] initWithData:[self body] encoding:NSASCIIStringEncoding];
+    if ([[self body] length] == 0) {
+        return;
+    }
+
+    NSArray *rawParameters = [body componentsSeparatedByString:@"&"];
+    NSMutableArray *parameters = [NSMutableArray array];
+    for (NSString* parameter in rawParameters) {
+        NSArray *parameterParts = [parameter componentsSeparatedByString:@"="];
+        NSMutableDictionary *dict = [NSMutableDictionary dictionary];
+        dict[@"name"] = parameterParts[0];
+        dict[@"value"] = [self decodeFromPercentEscapedString:parameterParts[1]];
+        [parameters addObject:dict];
+    }
+
+    self.parameters = [NSArray arrayWithArray:parameters];
+}
+
+- (NSString *)decodeFromPercentEscapedString:(NSString *) encodedSring {
+    return (__bridge NSString *)
+    CFURLCreateStringByReplacingPercentEscapesUsingEncoding( NULL, (__bridge CFStringRef)encodedSring, CFSTR(""), kCFStringEncodingUTF8);
+}
+
 @end