First commit

httpHeader.cpp

@@ -0,0 +1,55 @@
+#include "httpHeader.h"
+#include "strutils.h"
+
+HTTPHeader::HTTPHeader() {
+}
+
+void HTTPHeader::consumeLine(char* line) {
+	int nTokens;
+	char** tokens = stringSplit(line, " :", &nTokens);
+
+	if (strcmp(tokens[0], "GET")==0 || strcmp(tokens[0], "PUT")==0 || strcmp(tokens[0], "POST")==0 || strcmp(tokens[0], "DELETE")==0) {
+		if (strcmp(tokens[0], "GET")==0)
+			verb = GET;
+		else if (strcmp(tokens[0], "PUT")==0)
+			verb = PUT;
+		else if (strcmp(tokens[0], "POST")==0)
+			verb = POST;
+		else if(strcmp(tokens[0], "DELETE")==0)
+			verb = DELETE;
+
+		if (stringContains(tokens[1], '?')) {
+			int nQTokens;
+			char** qTokens = stringSplit(tokens[1], "?&", &nQTokens);
+
+			for (int i = 0; i < nQTokens; i++) {
+				int nElements;
+				char** qElements = stringSplit(qTokens[i], "=", &nElements);
+
+				if (nElements == 2 && nPairs < MAX_PAIRS) {
+					strcpy(this->pairs[nPairs].key, qElements[0]);
+					strcpy(this->pairs[nPairs++].value, qElements[1]);
+				}
+
+				free(qElements);
+			}
+
+			free(qTokens);
+		}
+
+		strcpy(this->resource, tokens[1]);
+	}
+	else if (strcmp(tokens[0], "Content-Length") == 0) {
+		contentLength = atoi(tokens[1]);
+	}
+
+	free(tokens);
+}
+
+char* HTTPHeader::fetchQuery (char* key) {
+	for (int i=0; i < this->nPairs; i++) {
+		if (strcmp(this->pairs[i].key, key) == 0) {
+			return this->pairs[i].value;
+		}
+	}
+}

httpHeader.h

@@ -0,0 +1,36 @@
+#include "Arduino.h"
+#include "stdlib.h"
+#include "httpQuery.h"
+
+#ifndef HTTPHEADER_H
+#define HTTPHEADER_H
+
+#ifndef NULL
+#define NULL 0
+#endif
+
+#define GET    0
+#define PUT    1
+#define POST   2 
+#define DELETE 3
+
+#define MAX_PAIRS 3
+
+class HTTPHeader {
+private:
+	int verb;
+	char resource[64];
+	int nPairs;
+	HTTPQuery pairs[MAX_PAIRS];
+	unsigned int contentLength;
+public:
+	HTTPHeader();
+	void reset() {nPairs = 0;}
+	void consumeLine(char* line);
+	int getContentLength() {return contentLength;}
+	//char* getHost() {return host;}
+	char* getResource() {return resource;}
+	//char* getVersion() {return "VERSION 1.0";}
+	char* fetchQuery (char* key);
+};
+#endif

httpQuery.h

@@ -0,0 +1,8 @@
+#ifndef HTTPQUERY_H
+#define HTTPQUERY_H
+
+struct HTTPQuery {
+	char key[16], value[32];
+};
+
+#endif

strutils.h

@@ -0,0 +1,78 @@
+#include "Arduino.h"
+#include "stdlib.h"
+
+#ifndef STRUTILS_H
+#define STRUTILS_H
+
+bool stringContains(char* string, char c) {
+	int len = strlen(string);
+
+	for (int i = 0; i < len; i++) {
+		if (string[i] == c) {
+			return true;
+		}
+	}
+
+	return false;	
+}
+
+bool isDelimiter(char c, char* delimiters) {
+	int nDelimiters = strlen(delimiters);
+
+	for (int i = 0; i < nDelimiters; i++) {
+		if (delimiters[i] == c)
+			return true;
+	}
+
+	return false;
+}
+
+char** stringSplit(char* string, char* delimiters, int* nTokens) {
+	char* p = string;
+	char* token;
+	char** tokens;
+	int count = 0;
+	bool delimiterFound = false;
+
+	while(*p != 0) {
+		if (isDelimiter(*p, delimiters) && !delimiterFound) {
+			count++;
+			delimiterFound = true;
+		}
+		else {
+			delimiterFound = false;
+		}
+
+		p++;
+	}
+
+	count++;
+
+	tokens = (char**)malloc(count*sizeof(char*));
+	*nTokens = count;
+	delimiterFound = false;
+	token = p = string;
+	count = 0;
+
+	while(*p != 0) {
+		if (isDelimiter(*p, delimiters) && !delimiterFound) {
+			*p = 0;
+			tokens[count++] = token;
+			token = p + 1;
+			delimiterFound = true;
+		}
+		else if (isDelimiter(*p, delimiters) && delimiterFound) {
+			token++;
+		}
+		else {
+			delimiterFound = false;
+		}
+
+		p++;
+	}
+
+	tokens[count] = token;
+
+	return tokens;
+}
+#endif