Now working for simple, non-encrypted requests

making requests to something like example.com over a non-encrypted
connection now works. Binary files are unlikely to work at the moment
although I haven't tried. Also, non-encrypted doesn't work.

I have also changed a little about how tests work. Requests tests now
display much better.
This commit is contained in:
Jonathan Hodgson 2022-01-18 21:45:58 +00:00
parent a91a264a7a
commit 8a5bfe9b36
18 changed files with 725 additions and 148 deletions

View file

@ -10,12 +10,13 @@ Request* newRequest(){
void requestFirstLine( Request *req, char line[] ){
char method[20] = {'\0'}; //Get, post, etc.
char *url = malloc(sizeof(char) *2048); // This may contain the method, the path, the domain and so on
// This may contain the method, the path, the domain and so on
char *url = malloc(sizeof(char) *2048);
memset(url, '\0', sizeof(char) * 2048);
char *currentPos;
char *currentPos = url;
float version = 0;
char protocol[6] = {'\0'};
char host[254] = {'\0'};
int port = -1; // 0 is a valid port number, -1 isn't
//https://stackoverflow.com/questions/417142/what-is-the-maximum-length-of-a-url-in-different-browsers
char path[2000] = {'\0'};
@ -24,34 +25,64 @@ void requestFirstLine( Request *req, char line[] ){
req->version = version;
//We've pulled out the easy bits. Now to go through the url and pull out what we need
currentPos = url;
sscanf( currentPos, "%5[^:/]", protocol );
if ( strlen( protocol ) > 0 ){
currentPos = currentPos + strlen(protocol) + 3;
int protEnd = strpos(url, "://" );
if ( protEnd > -1 ){
req->protocol = strndup( url, protEnd );
currentPos += protEnd + 3;
} else {
req->protocol = "";
}
sscanf( currentPos, "%253[^:/]", host );
if ( strlen( host ) > 0 ){
currentPos = currentPos + strlen(host);
req->host = strdup(host);
} else {
req->host = "";
}
if ( currentPos[0] == ':' ){
currentPos++;
sscanf( currentPos, "%i", &port );
req->port = port;
currentPos += (int)floor( log10( port ) ) + 1;
} else {
req->port = -1;
}
sscanf( currentPos, "%2000[^? ]", path );
if ( strlen( path ) > 0 ){
currentPos = currentPos + strlen(path);
currentPos += strlen(path);
req->path = strdup(path);
} else {
req->path = "";
}
req->protocol = malloc(sizeof(char) * strlen(protocol));
strcpy(req->protocol, protocol);
req->host = malloc(sizeof(char) * strlen(host));
strcpy(req->host, host);
req->path = malloc(sizeof(char) * strlen(path));
strcpy(req->path, path);
if ( strlen( currentPos ) > 0 ){
req->queryString = strdup( currentPos );
} else {
req->queryString = "";
}
//We try and work out port and protocol if we don't have them
if ( req->port == -1){
if ( strcmp( "https", req->protocol ) == 0 )
req->port = 443;
else
req->port = 80;
}
if ( strlen(req->protocol) == 0 ){
if ( req->port == 443 )
req->protocol = "https";
else
req->protocol = "http";
}
//The query string is anything left
req->queryString = malloc(sizeof(char) * strlen(currentPos));
strcpy(req->queryString, currentPos);
free(url);
}
@ -70,30 +101,38 @@ Request* newRequestFromSocket(int socket){
//from the body (if there is a body)
valread = fdReadLine( socket, line, 1024);
while ( valread > 2 ){
printf("%s",line );
requestAddHeader( req, line );
//I believe at this point all the headers are done.
valread = fdReadLine( socket , line, 1024);
}
//TODO: make requests work with a body
//contentLength = getHeader( req->headers, "content-length" );
//if ( contentLength != NULL ){
// printf( "Content length is %i\n", atoi(contentLength->value) );
//}
return req;
}
char* requestToString( Request *req, bool proxy){
char* requestToString( Request *req){
unsigned int fullLength = strlen(req->method) + 1 + sizeof( req->path ) +
//11 = [space]http/1.1\r\n
sizeof( req->queryString ) + 11 + headerListCharLength( req->headers );
if ( proxy )
fullLength += sizeof(req->method) + 3 + sizeof(req->host);
if ( strcmp( req->method, "CONNECT" ) == 0 )
fullLength += sizeof(req->host);
char retString[fullLength];
memset( retString, '\0', fullLength );
if (proxy)
sprintf(retString, "%s %s://%s%s%s HTTP/%.1f\r\n%s", req->method,
req->method, req->host, req->path, req->queryString, req->version,
headersToString(req->headers));
if ( strcmp( req->method, "CONNECT" ) == 0 )
sprintf(retString, "%s %s HTTP/%.1f\r\n%s\r\n", req->method,
req->host, req->version, headersToString(req->headers));
else
sprintf(retString, "%s %s%s HTTP/%.1f\r\n%s", req->method,
sprintf(retString, "%s %s%s HTTP/%.1f\r\n%s\r\n", req->method,
req->path, req->queryString, req->version,
headersToString(req->headers));
// rsp->statusMessage,headersToString(rsp->headers),rsp->body);
@ -111,5 +150,15 @@ void requestAddHeader( Request *req, char header[] ){
}
void freeRequest( Request *req ){
free(req->method);
free(req->protocol);
free(req->host);
free(req->path);
freeHeaderList( req->headers );
free(req->queryString);
free(req->body);
free(req);
}