moved functions around

This commit is contained in:
Pin
2022-03-06 23:08:18 -05:00
parent fc4af96282
commit de1bac616b
12 changed files with 343 additions and 262 deletions

View File

@@ -15,6 +15,7 @@
#include "returnRequest.h"
#include "server.h"
#include "utils.h"
#include "requestHandlers.h"
#define WEB_ROOT "/var/www/html/"
//#define WEB_ROOT "content/"
@@ -22,6 +23,7 @@
static int verbose_flag = 0;
bool enableHTTPS = 0;
char *WEB_ROOT_DIR = NULL;
static int timeout = 0;
@@ -32,91 +34,6 @@ int printDebug(char message[]) {
return 0;
}
char *php_cgi(char *sPath, struct HTTPRequest *r) {
int phpPipe[2];
char *buf = NULL;
size_t bufLen = 1024;
buf = malloc(bufLen);
pipe(phpPipe);
pid_t pid;
int status = 0;
pid = fork();
if (pid == 0) { // Child fork
char script[500];
char *queryString = NULL;
close(phpPipe[0]);
dup2(phpPipe[1], STDOUT_FILENO);
strcpy(script, "SCRIPT_FILENAME=");
strcat(script, WEB_ROOT);
strcat(script, sPath);
putenv("GATEWAY_INTERFACE=CGI/1.1");
putenv(script);
putenv("REDIRECT_STATUS=true");
putenv("SERVER_PROTOCOL=HTTP/1.1");
putenv("REMOTE_HOST=127.0.0.1");
if (!strcmp(r->requestType, "POST")) {
putenv("REQUEST_METHOD=POST");
char conLenString[256];
sprintf(conLenString, "CONTENT_LENGTH=%zu", r->requestBodyLen);
putenv(conLenString);
putenv("CONTENT_TYPE=application/x-www-form-urlencoded");
queryString = malloc(r->requestBodyLen + 24);
sprintf(queryString, "QUERY_STRING=%s", r->requestBody);
putenv(queryString);
// Starting fork to pipe stdin into php-cgi
int phpPipe2[2];
pipe(phpPipe2);
pid_t pid2;
pid2 = fork();
if (pid2 == 0) { // Child fork
close(phpPipe2[0]);
dup2(phpPipe2[1], STDOUT_FILENO);
printf("%s", r->requestBody);
close(phpPipe2[1]);
exit(EXIT_SUCCESS);
} else if (pid < 0) { // Error forking
printDebug("Error in stdin php frok");
} else { // Parent fork
close(phpPipe[1]);
dup2(phpPipe2[0], STDIN_FILENO);
execlp("/usr/bin/php-cgi", "php-cgi", NULL);
}
} else {
queryString = malloc(strlen(r->requestVars) + 24);
sprintf(queryString, "QUERY_STRING=%s", r->requestVars);
putenv(queryString);
putenv("REQUEST_METHOD=GET");
execl("/usr/bin/php-cgi", "php-cgi", NULL);
}
} else if (pid < 0) { // Error forking
printDebug("Error forking php exec");
} else { // Parent fork
size_t buffCount;
close(phpPipe[1]);
do {
buffCount = read(phpPipe[0], buf, BUFF_READ);
if (strlen(buf) == bufLen) {
bufLen *= 2;
buf = realloc(buf, bufLen);
}
} while (buffCount == 0);
do {
waitpid(pid, &status, WUNTRACED);
} while (!WIFEXITED(status) && !WIFSIGNALED(status));
}
close(phpPipe[0]);
if (status != 0) {
return NULL;
}
return buf;
}
int parseHTTPRequest(unsigned char *buffer, struct HTTPRequest *r) {
char temp[1]; // Used to check newlines
char *token = calloc(8, sizeof(char));
@@ -219,171 +136,6 @@ int parseHTTPRequest(unsigned char *buffer, struct HTTPRequest *r) {
return 0;
}
int handleGetRequest(int socket, struct HTTPRequest *r, SSL *ssl) {
char errResponse[256];
char ch;
size_t size = 8;
int i = 0;
unsigned char *fileContent = calloc(size, sizeof(unsigned char));
FILE *fp;
char *workingReqDir;
char *phpReturn = NULL;
char phpEnd[5] = ".php";
bool endsWithPhp = false;
if (strlen(phpEnd) <= strlen(r->requestDir)) {
for (int i = 0; i < strlen(phpEnd); i++) {
if (r->requestDir[i + strlen(r->requestDir) - strlen(phpEnd)] != phpEnd[i]) {
endsWithPhp = false;
break;
}
endsWithPhp = true;
}
}
if (endsWithPhp) {
phpReturn = php_cgi(r->requestDir, r);
if (phpReturn != NULL) {
return returnPHPRequest(socket, phpReturn, ssl);
} else {
return return500Request(socket, ssl);
}
}
// If requesting root directory change to index.html
if (!strcmp(r->requestDir, "/")) {
workingReqDir = "index.html";
} else {
workingReqDir = r->requestDir;
}
char *reqDir = calloc((strlen(WEB_ROOT) + strlen(workingReqDir) + 1), sizeof(char));
sprintf(reqDir, "%s%s", WEB_ROOT, workingReqDir);
fp = fopen(reqDir, "r");
if (fp == NULL) {
sprintf(errResponse, "Error opening file: %s", workingReqDir);
printDebug(errResponse);
return404Request(socket, ssl);
return -1;
}
while((ch = fgetc(fp)) != EOF) {
if (i == size) {
size *= 2;
fileContent = realloc(fileContent, size);
}
fileContent[i] = ch;
i++;
}
return200Request(socket, fileContent, ssl);
fclose(fp);
free(reqDir);
free(fileContent);
return 0;
}
int handlePUTRequest(int socket, struct HTTPRequest *r, SSL *ssl) {
FILE *fp;
char *reqDir;
char * workingReqDir;
char errResponse[256];
if (!strcmp(r->requestDir, "/")) {
workingReqDir = "index.html";
} else {
workingReqDir = r->requestDir;
}
reqDir = calloc(strlen(WEB_ROOT) + strlen(workingReqDir), sizeof(char));
sprintf(reqDir, "%s%s", WEB_ROOT, workingReqDir);
fp = fopen(reqDir, "w");
if (fp == NULL) {
sprintf(errResponse, "Error opening file: %s", workingReqDir);
printDebug(errResponse);
return return404Request(socket, ssl);
}
fprintf(fp, "%s", r->requestBody);
free(reqDir);
fclose(fp);
return return201Request(socket, r->requestBody, ssl);
}
int handleDELETERequest(int socket, struct HTTPRequest *r, SSL *ssl) {
char *reqDir;
char * workingReqDir;
char logLine[256];
if (!strcmp(r->requestDir, "/")) {
workingReqDir = "index.html";
} else {
workingReqDir = r->requestDir;
}
reqDir = calloc(strlen(WEB_ROOT) + strlen(workingReqDir), sizeof(char));
sprintf(reqDir, "%s%s", WEB_ROOT, workingReqDir);
if (remove(reqDir) == 0) {
sprintf(logLine, "Deleted file");
free(reqDir);
return return200Request(socket, NULL, ssl);
} else {
printDebug("Failed to delete file");
free(reqDir);
if (errno == 1) { // Permission denided
return return403Request(socket, ssl);
} else { // Catch all (likely file != exist)
return return404Request(socket, ssl);
}
}
return 0;
}
int handlePOSTRequest(int socket, struct HTTPRequest *r, SSL *ssl) {
char *phpReturn = NULL;
// Supported data types application/x-www-form-urlencoded application/json
if (r->requestConLen == NULL) { // Return 411 if length var not specified
printDebug("Content Length was not sent in POST request");
return return411Request(socket, ssl);
}
if (r->requestConType != NULL) {
if (!strcmp(r->requestConType, "application/x-www-form-utlencoded") == 0) {
printDebug("Application From Selected");
} else {
printDebug("Content will likely get parsed wrong");
}
}
char phpEnd[5] = ".php";
bool endsWithPhp = false;
if (strlen(phpEnd) <= strlen(r->requestDir)) {
for (int i = 0; i < strlen(phpEnd); i++) {
if (r->requestDir[i + strlen(r->requestDir) - strlen(phpEnd)] != phpEnd[i]) {
endsWithPhp = false;
break;
}
endsWithPhp = true;
}
}
if (endsWithPhp) {
phpReturn = php_cgi(r->requestDir, r);
if (phpReturn != NULL) {
return returnPHPRequest(socket, phpReturn, ssl);
}
} else {
return return200Request(socket, NULL, ssl);
}
return return500Request(socket, ssl);
}
int handleRequest(unsigned char buffer[], int socket, SSL *ssl) {
struct HTTPRequest r; // Holds relevant HTTP request information
r.requestConLen = malloc(sizeof(char));
@@ -453,6 +205,10 @@ int main(int argc, char **argv) {
size_t bufSize = BUFF_READ;
unsigned char *buffer = calloc(bufSize, sizeof(unsigned char));
// Copy WEB_ROOT into extern value
WEB_ROOT_DIR = malloc(strlen(WEB_ROOT));
strcpy(WEB_ROOT_DIR, WEB_ROOT);
// Setting up options
static const struct option long_options[] = {
{"help", no_argument, NULL, 'h'},
@@ -625,6 +381,7 @@ int main(int argc, char **argv) {
free(certFile);
free(listenAddr);
free(buffer);
free(WEB_ROOT_DIR);
close(server_fd);
exit(EXIT_SUCCESS);
}