void writeFileToPackage(char *f, char *relpath) {
char *filename = relpath;
uint16_t crcsum;
// Uncompressed then compressed size
int usize = 0, csize = 0, c;
FILE *in = fopen(f, "rb");
int plen = strlen(filename);
fputc(plen, packager.output);
fputs(filename, packager.output);
fputc(packager.compressionType, packager.output);
fseek(in, 0, SEEK_END);
usize = ftell(in);
fseek(in, 0, SEEK_SET);
// 24-bits uncompressed file's size
fputc(usize & 0xff, packager.output);
fputc((usize >> 8) & 0xff, packager.output);
fputc((usize >> 16) & 0xff, packager.output);
if (packager.compressionType == COMPRESSION_NONE) {
csize = usize;
} else if (packager.compressionType == COMPRESSION_RLE) {
//
// TODO
//
// RLE compression
// put compressed size in variable 'csize'
} else if (packager.compressionType == COMPRESSION_PUCRUNCH) {
//
// TODO
//
// pucrunch compression
// put compressed size in variable 'csize'
}
// 24-bits compressed file's size
fputc(csize & 0xff, packager.output);
fputc((csize >> 8) & 0xff, packager.output);
fputc((csize >> 16) & 0xff, packager.output);
while ((c = fgetc(in)) != EOF) {
fputc(c, packager.output);
}
if (packager.sumType == SUM_NONE) {
// No checksum
fputc(SUM_NONE, packager.output);
} else if (packager.sumType == SUM_CRC16) {
// CRC-16 checksum
// See checksums.c for implementation
fputc(SUM_CRC16, packager.output);
crcsum = calculateCRC16(in);
fputc(crcsum & 0xff, packager.output);
fputc(crcsum >> 8, packager.output);
} else if (packager.sumType == SUM_SHA1) {
void Parse_Request(char *buffer, struct Element *crcTable, int new_fd, char* PATH, unsigned int *crcPageNotFound) {
if (!strncmp(buffer, "GET ", 4)) {
char *startUriPos, *endUriPos;
printf("input: GET request\n");
buffer += 4;
startUriPos = buffer;
endUriPos = strchr(buffer, ' '); // get position of the ending URI blank space: GET -url- HTTP/1.0
printf("startPos: character=%c, %p, endPos: character=%c, %p\n", *startUriPos, startUriPos, *endUriPos, endUriPos);
int url1Length;
char *url1;
url1Length = endUriPos - startUriPos - 1;
url1 = (char*) calloc(url1Length, sizeof (char));
strncpy(url1, buffer + 1, url1Length);
printf("URL: %s\n", url1);
int urlLength = url1Length;
char *url = (char *) calloc(urlLength + 1, sizeof (char));
strcat(url, url1);
printf("PATH, URL: %s, %s\n", PATH, url1);
printf("combined: %s, urlLength=%d\n", url, urlLength);
// exit(0);
unsigned int crcValue = calculateCRC16(url, urlLength);
printf("crcValue of URL: %d\n", crcValue);
printf("crcTable[crcValue=%d].pointer=%d\n", crcValue, crcTable[crcValue].pointer);
printf("crcTable[crcValue=%d].sizeBytes=%d\n", crcValue, crcTable[crcValue].sizeBytes);
// exit(0);
// check if resource exist on the server
if (crcTable[crcValue].pointer != 0) {
// get the resource in the RAM and send it back to a client
printf("The resource '%s' EXISTS in the RAM\n", url);
// ssize_t send(int sockfd, const void *buf, size_t len, int flags);
int bytesSent = send(new_fd, crcTable[crcValue].pointer, crcTable[crcValue].sizeBytes, 0);
printf("bytesSent: %d\n", bytesSent);
} else {
printf("The resource '%s' does not exist in the RAM\nSending default page to the client\n", url);
int bytesSent = send(new_fd, crcTable[*crcPageNotFound].pointer, crcTable[*crcPageNotFound].sizeBytes, 0);
exit(-3);
}
};
}