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magicka/www.c
2016-08-20 13:52:02 +10:00

889 lines
21 KiB
C

#if defined(ENABLE_WWW)
#include <microhttpd.h>
#include <string.h>
#include <stdlib.h>
#include <sys/stat.h>
#include <fcntl.h>
#include <b64/cdecode.h>
#include "bbs.h"
#define GET 1
#define POST 2
#define POSTBUFFERSIZE 8192
extern struct bbs_config conf;
struct mime_type {
char *ext;
char *mime;
};
static struct mime_type **mime_types;
static int mime_types_count;
struct connection_info_s {
int connection_type;
struct user_record *user;
char *url;
char **keys;
char **values;
int count;
struct MHD_PostProcessor *pp;
};
void www_request_completed(void *cls, struct MHD_Connection *connection, void **con_cls, enum MHD_RequestTerminationCode toe) {
struct connection_info_s *con_info = *con_cls;
int i;
if (con_info == NULL) {
return;
}
if (con_info->connection_type == POST) {
if (con_info->count > 0) {
for (i=0;i<con_info->count;i++) {
free(con_info->values[i]);
free(con_info->keys[i]);
}
free(con_info->values);
free(con_info->keys);
}
MHD_destroy_post_processor(con_info->pp);
}
if (con_info->user != NULL) {
free(con_info->user->loginname);
free(con_info->user->password);
free(con_info->user->firstname);
free(con_info->user->lastname);
free(con_info->user->email);
free(con_info->user->location);
free(con_info->user->sec_info);
free(con_info->user);
}
free(con_info->url);
free(con_info);
}
static int iterate_post (void *coninfo_cls, enum MHD_ValueKind kind, const char *key, const char *filename, const char *content_type, const char *transfer_encoding, const char *data, uint64_t off, size_t size) {
struct connection_info_s *con_info = coninfo_cls;
int i;
if (con_info != NULL) {
if (con_info->connection_type == POST) {
for (i=0;i<con_info->count;i++) {
if (strcmp(con_info->keys[i], key) == 0) {
con_info->values[i] = (char *)realloc(con_info->values[i], strlen(con_info->values[i] + size + 1));
strcat(con_info->values[i], data);
return MHD_YES;
}
}
if (con_info->count == 0) {
con_info->keys = (char **)malloc(sizeof(char *));
con_info->values = (char **)malloc(sizeof(char *));
} else {
con_info->keys = (char **)realloc(con_info->keys, sizeof(char *) * (con_info->count + 1));
con_info->values = (char **)realloc(con_info->values, sizeof(char *) * (con_info->count + 1));
}
con_info->keys[con_info->count] = strdup(key);
con_info->values[con_info->count] = strdup(data);;
con_info->count++;
if (strcmp(con_info->url, "/email/") == 0 || strcmp(con_info->url, "/email") == 0) {
if (con_info->count == 3) {
return MHD_NO;
}
}
if (strcmp(con_info->url, "/msgs/") == 0 || strcmp(con_info->url, "/msgs") == 0) {
if (con_info->count == 6) {
return MHD_NO;
}
}
return MHD_YES;
} else {
return MHD_NO;
}
}
return MHD_NO;
}
void www_init() {
FILE *fptr;
char buffer[4096];
int i;
mime_types_count = 0;
sprintf(buffer, "%s/mime.types", conf.www_path);
fptr = fopen(buffer, "r");
if (!fptr) {
return;
}
fgets(buffer, 4096, fptr);
while (!feof(fptr)) {
chomp(buffer);
for (i=0;i<strlen(buffer);i++) {
if (buffer[i] == ' ') {
buffer[i] = '\0';
if (mime_types_count == 0) {
mime_types = (struct mime_type **)malloc(sizeof(struct mime_type *));
} else {
mime_types = (struct mime_type **)realloc(mime_types, sizeof(struct mime_type *) * (mime_types_count + 1));
}
mime_types[mime_types_count] = (struct mime_type *)malloc(sizeof(struct mime_type));
mime_types[mime_types_count]->mime = strdup(buffer);
mime_types[mime_types_count]->ext = strdup(&buffer[i+1]);
mime_types_count++;
break;
}
}
fgets(buffer, 4096, fptr);
}
fclose(fptr);
}
char *www_get_mime_type(const char *extension) {
int i;
static char default_mime_type[] = "application/octet-stream";
for (i=0;i<mime_types_count;i++) {
if (strcasecmp(extension, mime_types[i]->ext) == 0) {
return mime_types[i]->mime;
}
}
return default_mime_type;
}
int www_401(char *header, char *footer, struct MHD_Connection * connection) {
char buffer[4096];
char *page;
struct stat s;
char *whole_page;
struct MHD_Response *response;
int ret;
FILE *fptr;
snprintf(buffer, 4096, "%s/401.tpl", conf.www_path);
page = NULL;
if (stat(buffer, &s) == 0) {
page = (char *)malloc(s.st_size + 1);
if (page == NULL) {
return -1;
}
memset(page, 0, s.st_size + 1);
fptr = fopen(buffer, "r");
if (fptr) {
fread(page, s.st_size, 1, fptr);
fclose(fptr);
} else {
free(page);
page = NULL;
}
}
if (page == NULL) {
page = (char *)malloc(16);
if (page == NULL) {
return -1;
}
sprintf(page, "Missing Content");
}
whole_page = (char *)malloc(strlen(header) + strlen(page) + strlen(footer) + 1);
sprintf(whole_page, "%s%s%s", header, page, footer);
response = MHD_create_response_from_buffer (strlen(whole_page), (void*)whole_page, MHD_RESPMEM_PERSISTENT);
MHD_add_response_header(response, "WWW-Authenticate", "Basic realm=\"BBS Area\"");
ret = MHD_queue_response (connection, 401, response);
MHD_destroy_response (response);
free(whole_page);
free(page);
return 0;
}
int www_404(char *header, char *footer, struct MHD_Connection * connection) {
char buffer[4096];
char *page;
struct stat s;
char *whole_page;
struct MHD_Response *response;
int ret;
FILE *fptr;
snprintf(buffer, 4096, "%s/404.tpl", conf.www_path);
page = NULL;
if (stat(buffer, &s) == 0) {
page = (char *)malloc(s.st_size + 1);
if (page == NULL) {
return -1;
}
memset(page, 0, s.st_size + 1);
fptr = fopen(buffer, "r");
if (fptr) {
fread(page, s.st_size, 1, fptr);
fclose(fptr);
} else {
free(page);
page = NULL;
}
}
if (page == NULL) {
page = (char *)malloc(16);
if (page == NULL) {
return -1;
}
sprintf(page, "Missing Content");
}
whole_page = (char *)malloc(strlen(header) + strlen(page) + strlen(footer) + 1);
sprintf(whole_page, "%s%s%s", header, page, footer);
response = MHD_create_response_from_buffer (strlen(whole_page), (void*)whole_page, MHD_RESPMEM_PERSISTENT);
ret = MHD_queue_response (connection, MHD_HTTP_NOT_FOUND, response);
MHD_destroy_response (response);
free(whole_page);
free(page);
return 0;
}
int www_403(char *header, char *footer, struct MHD_Connection * connection) {
char buffer[4096];
char *page;
struct stat s;
char *whole_page;
struct MHD_Response *response;
int ret;
FILE *fptr;
snprintf(buffer, 4096, "%s/403.tpl", conf.www_path);
page = NULL;
if (stat(buffer, &s) == 0) {
page = (char *)malloc(s.st_size + 1);
if (page == NULL) {
return -1;
}
memset(page, 0, s.st_size + 1);
fptr = fopen(buffer, "r");
if (fptr) {
fread(page, s.st_size, 1, fptr);
fclose(fptr);
} else {
free(page);
page = NULL;
}
}
if (page == NULL) {
page = (char *)malloc(16);
if (page == NULL) {
return -1;
}
sprintf(page, "Missing Content");
}
whole_page = (char *)malloc(strlen(header) + strlen(page) + strlen(footer) + 1);
sprintf(whole_page, "%s%s%s", header, page, footer);
response = MHD_create_response_from_buffer (strlen(whole_page), (void*)whole_page, MHD_RESPMEM_PERSISTENT);
ret = MHD_queue_response (connection, MHD_HTTP_NOT_FOUND, response);
MHD_destroy_response (response);
free(whole_page);
free(page);
return 0;
}
struct user_record *www_auth_ok(struct MHD_Connection *connection, const char *url) {
char *user_password = MHD_lookup_connection_value(connection, MHD_HEADER_KIND, "Authorization");
base64_decodestate state;
char decoded_pass[34];
int len;
char *username;
char *password;
int i;
if (user_password == NULL) {
return NULL;
}
if (strncasecmp(user_password, "basic ", 6) == 0) {
if (strlen(&user_password[6]) <= 48) {
base64_init_decodestate(&state);
len = base64_decode_block(&user_password[6], strlen(&user_password[6]), decoded_pass, &state);
decoded_pass[len] = '\0';
username = decoded_pass;
for (i=0;i<strlen(decoded_pass);i++) {
if (decoded_pass[i] == ':') {
decoded_pass[i] = '\0';
password = &decoded_pass[i+1];
break;
}
}
return check_user_pass(username, password);
}
}
return NULL;
}
int www_handler(void * cls, struct MHD_Connection * connection, const char * url, const char * method, const char * version, const char * upload_data, size_t * upload_data_size, void ** ptr) {
struct MHD_Response *response;
int ret;
char *page;
char buffer[4096];
struct stat s;
char *header;
char *footer;
char *whole_page;
FILE *fptr;
char *mime;
int i;
int fno;
const char *url_ = url;
char *subj, *to, *body;
struct connection_info_s *con_inf;
int conference, area, msg;
char *url_copy;
char *aptr;
const char *val;
int skip;
char *replyid;
if (strcmp(method, "GET") == 0) {
if (*ptr == NULL) {
con_inf = (struct connection_info_s *)malloc(sizeof(struct connection_info_s));
if (!con_inf) {
return MHD_NO;
}
con_inf->connection_type = GET;
con_inf->user = NULL;
con_inf->count = 0;
con_inf->url = strdup(url);
*ptr = con_inf;
return MHD_YES;
}
} else if (strcmp(method, "POST") == 0) {
if (*ptr == NULL) {
con_inf = (struct connection_info_s *)malloc(sizeof(struct connection_info_s));
if (!con_inf) {
return MHD_NO;
}
con_inf->connection_type = POST;
con_inf->user = NULL;
con_inf->count = 0;
con_inf->url = strdup(url);
*ptr = con_inf;
return MHD_YES;
}
}
con_inf = *ptr;
snprintf(buffer, 4096, "%s/header.tpl", conf.www_path);
header = NULL;
if (stat(buffer, &s) == 0) {
header = (char *)malloc(s.st_size + 1);
if (header == NULL) {
return MHD_NO;
}
memset(header, 0, s.st_size + 1);
fptr = fopen(buffer, "r");
if (fptr) {
fread(header, s.st_size, 1, fptr);
fclose(fptr);
} else {
free(header);
header = NULL;
}
}
if (header == NULL) {
header = (char *)malloc(strlen(conf.bbs_name) * 2 + 61);
if (header == NULL) {
return MHD_NO;
}
sprintf(header, "<HTML>\n<HEAD>\n<TITLE>%s</TITLE>\n</HEAD>\n<BODY>\n<H1>%s</H1><HR />", conf.bbs_name, conf.bbs_name);
}
snprintf(buffer, 4096, "%s/footer.tpl", conf.www_path);
footer = NULL;
if (stat(buffer, &s) == 0) {
footer = (char *)malloc(s.st_size + 1);
if (footer == NULL) {
free(header);
return MHD_NO;
}
memset(footer, 0, s.st_size + 1);
fptr = fopen(buffer, "r");
if (fptr) {
fread(footer, s.st_size, 1, fptr);
fclose(fptr);
} else {
free(footer);
footer = NULL;
}
}
if (footer == NULL) {
footer = (char *)malloc(43);
if (footer == NULL) {
free(header);
return MHD_NO;
}
sprintf(footer, "<HR />Powered by Magicka BBS</BODY></HTML>");
}
if (strcmp(method, "GET") == 0) {
if (strcasecmp(url, "/") == 0) {
snprintf(buffer, 4096, "%s/index.tpl", conf.www_path);
page = NULL;
if (stat(buffer, &s) == 0) {
page = (char *)malloc(s.st_size + 1);
if (page == NULL) {
free(header);
free(footer);
return MHD_NO;
}
memset(page, 0, s.st_size + 1);
fptr = fopen(buffer, "r");
if (fptr) {
fread(page, s.st_size, 1, fptr);
fclose(fptr);
} else {
free(page);
page = NULL;
}
}
if (page == NULL) {
page = (char *)malloc(16);
if (page == NULL) {
free(header);
free(footer);
return MHD_NO;
}
sprintf(page, "Missing Content");
}
whole_page = (char *)malloc(strlen(header) + strlen(page) + strlen(footer) + 1);
sprintf(whole_page, "%s%s%s", header, page, footer);
} else if (strcasecmp(url, "/email/") == 0 || strcasecmp(url, "/email") == 0) {
con_inf->user = www_auth_ok(connection, url_);
if (con_inf->user == NULL) {
www_401(header, footer, connection);
free(header);
free(footer);
return MHD_YES;
}
page = www_email_summary(con_inf->user);
if (page == NULL) {
free(header);
free(footer);
return MHD_NO;
}
whole_page = (char *)malloc(strlen(header) + strlen(page) + strlen(footer) + 1);
sprintf(whole_page, "%s%s%s", header, page, footer);
} else if(strcasecmp(url, "/email/new") == 0) {
con_inf->user = www_auth_ok(connection, url_);
if (con_inf->user == NULL) {
www_401(header, footer, connection);
free(header);
free(footer);
return MHD_YES;
}
page = www_new_email();
if (page == NULL) {
free(header);
free(footer);
return MHD_NO;
}
whole_page = (char *)malloc(strlen(header) + strlen(page) + strlen(footer) + 1);
sprintf(whole_page, "%s%s%s", header, page, footer);
} else if (strncasecmp(url, "/email/delete/", 14) == 0) {
con_inf->user = www_auth_ok(connection, url_);
if (con_inf->user == NULL) {
www_401(header, footer, connection);
free(header);
free(footer);
return MHD_YES;
}
if (!www_email_delete(con_inf->user, atoi(&url[14]))) {
page = (char *)malloc(31);
if (page == NULL) {
free(header);
free(footer);
return MHD_NO;
}
sprintf(page, "<h1>Error Deleting Email.</h1>");
} else {
page = (char *)malloc(24);
if (page == NULL) {
free(header);
free(footer);
return MHD_NO;
}
sprintf(page, "<h1>Email Deleted!</h1>");
}
if (page == NULL) {
free(header);
free(footer);
return MHD_NO;
}
whole_page = (char *)malloc(strlen(header) + strlen(page) + strlen(footer) + 1);
sprintf(whole_page, "%s%s%s", header, page, footer);
} else if (strncasecmp(url, "/email/", 7) == 0) {
con_inf->user = www_auth_ok(connection, url_);
if (con_inf->user == NULL) {
www_401(header, footer, connection);
free(header);
free(footer);
return MHD_YES;
}
page = www_email_display(con_inf->user, atoi(&url[7]));
if (page == NULL) {
free(header);
free(footer);
return MHD_NO;
}
whole_page = (char *)malloc(strlen(header) + strlen(page) + strlen(footer) + 1);
sprintf(whole_page, "%s%s%s", header, page, footer);
} else if (strcasecmp(url, "/msgs/") == 0 || strcasecmp(url, "/msgs") == 0) {
con_inf->user = www_auth_ok(connection, url_);
if (con_inf->user == NULL) {
www_401(header, footer, connection);
free(header);
free(footer);
return MHD_YES;
}
page = www_msgs_arealist(con_inf->user);
if (page == NULL) {
free(header);
free(footer);
return MHD_NO;
}
whole_page = (char *)malloc(strlen(header) + strlen(page) + strlen(footer) + 1);
sprintf(whole_page, "%s%s%s", header, page, footer);
} else if (strncasecmp(url, "/msgs/new/", 10) == 0) {
con_inf->user = www_auth_ok(connection, url_);
if (con_inf->user == NULL) {
www_401(header, footer, connection);
free(header);
free(footer);
return MHD_YES;
}
conference = -1;
area = -1;
url_copy = strdup(&url[10]);
aptr = strtok(url_copy, "/");
if (aptr != NULL) {
conference = atoi(aptr);
aptr = strtok(NULL, "/");
if (aptr != NULL) {
area = atoi(aptr);
}
}
free(url_copy);
if (area != -1 && conference != -1) {
page = www_new_msg(con_inf->user, conference, area);
} else {
free(header);
free(footer);
return MHD_NO;
}
whole_page = (char *)malloc(strlen(header) + strlen(page) + strlen(footer) + 1);
sprintf(whole_page, "%s%s%s", header, page, footer);
} else if (strncasecmp(url, "/msgs/", 6) == 0) {
con_inf->user = www_auth_ok(connection, url_);
if (con_inf->user == NULL) {
www_401(header, footer, connection);
free(header);
free(footer);
return MHD_YES;
}
conference = -1;
area = -1;
msg = -1;
url_copy = strdup(&url[6]);
aptr = strtok(url_copy, "/");
if (aptr != NULL) {
conference = atoi(aptr);
aptr = strtok(NULL, "/");
if (aptr != NULL) {
area = atoi(aptr);
aptr = strtok(NULL, "/");
if (aptr != NULL) {
msg = atoi(aptr);
}
}
}
free(url_copy);
val = MHD_lookup_connection_value (connection, MHD_GET_ARGUMENT_KIND, "skip");
if (val != NULL) {
skip = atoi(val);
} else {
skip = 0;
}
if (conference != -1 && area != -1 && msg == -1) {
page = www_msgs_messagelist(con_inf->user, conference, area, skip);
} else if (conference != -1 && area != -1 && msg != -1) {
page = www_msgs_messageview(con_inf->user, conference, area, msg);
//page = NULL;
}
if (page == NULL) {
free(header);
free(footer);
return MHD_NO;
}
whole_page = (char *)malloc(strlen(header) + strlen(page) + strlen(footer) + 1);
sprintf(whole_page, "%s%s%s", header, page, footer);
} else if (strncasecmp(url, "/static/", 8) == 0) {
// sanatize path
if (strstr(url, "/..") != NULL) {
return MHD_NO;
}
// get mimetype
for (i=strlen(url);i>0;--i) {
if (url[i] == '.') {
mime = www_get_mime_type(&url[i+1]);
break;
}
}
// load file
sprintf(buffer, "%s%s", conf.www_path, url);
if (stat(buffer, &s) == 0 && S_ISREG(s.st_mode)) {
fno = open(buffer, O_RDONLY);
if (fno != -1) {
response = MHD_create_response_from_fd(s.st_size, fno);
MHD_add_response_header(response, MHD_HTTP_HEADER_CONTENT_TYPE, mime);
ret = MHD_queue_response (connection, MHD_HTTP_OK, response);
MHD_destroy_response (response);
free(header);
free(footer);
return MHD_YES;
} else {
if (www_403(header, footer, connection) != 0) {
free(header);
free(footer);
return MHD_NO;
}
free(header);
free(footer);
return MHD_YES;
}
} else {
if (www_404(header, footer, connection) != 0) {
free(header);
free(footer);
return MHD_NO;
}
free(header);
free(footer);
return MHD_YES;
}
} else {
if (www_404(header, footer, connection) != 0) {
free(header);
free(footer);
return MHD_NO;
}
free(header);
free(footer);
return MHD_YES;
}
} else if (strcmp(method, "POST") == 0) {
if (strcasecmp(url, "/email/") == 0 || strcasecmp(url, "/email") == 0) {
con_inf->user = www_auth_ok(connection, url_);
if (con_inf->user == NULL) {
www_401(header, footer, connection);
free(header);
free(footer);
return MHD_YES;
}
con_inf->pp = MHD_create_post_processor(connection, POSTBUFFERSIZE, iterate_post, (void*) con_inf);
if (*upload_data_size != 0) {
MHD_post_process (con_inf->pp, upload_data, *upload_data_size);
*upload_data_size = 0;
return MHD_YES;
}
subj = NULL;
to = NULL;
body = NULL;
for (i=0;i<con_inf->count;i++) {
if (strcmp(con_inf->keys[i], "recipient") == 0) {
to = con_inf->values[i];
} else if (strcmp(con_inf->keys[i], "subject") == 0) {
subj = con_inf->values[i];
} else if (strcmp(con_inf->keys[i], "body") == 0) {
body = con_inf->values[i];
}
}
if (!www_send_email(con_inf->user, to, subj, body)) {
page = (char *)malloc(50);
if (page == NULL) {
free(header);
free(footer);
return MHD_NO;
}
sprintf(page, "<h1>Error Sending Email (Check User Exists?)</h1>");
} else {
page = (char *)malloc(21);
if (page == NULL) {
free(header);
free(footer);
return MHD_NO;
}
sprintf(page, "<h1>Email Sent!</h1>");
}
whole_page = (char *)malloc(strlen(header) + strlen(page) + strlen(footer) + 1);
sprintf(whole_page, "%s%s%s", header, page, footer);
} else if (strcasecmp(url, "/msgs/") == 0 || strcasecmp(url, "/msgs") == 0) {
con_inf->user = www_auth_ok(connection, url_);
if (con_inf->user == NULL) {
www_401(header, footer, connection);
free(header);
free(footer);
return MHD_YES;
}
con_inf->pp = MHD_create_post_processor(connection, POSTBUFFERSIZE, iterate_post, (void*) con_inf);
if (*upload_data_size != 0) {
MHD_post_process (con_inf->pp, upload_data, *upload_data_size);
*upload_data_size = 0;
return MHD_YES;
}
subj = NULL;
to = NULL;
body = NULL;
replyid = NULL;
for (i=0;i<con_inf->count;i++) {
if (strcmp(con_inf->keys[i], "recipient") == 0) {
to = con_inf->values[i];
} else if (strcmp(con_inf->keys[i], "subject") == 0) {
subj = con_inf->values[i];
} else if (strcmp(con_inf->keys[i], "body") == 0) {
body = con_inf->values[i];
} else if (strcmp(con_inf->keys[i], "conference") == 0) {
conference = atoi(con_inf->values[i]);
} else if (strcmp(con_inf->keys[i], "area") == 0) {
area = atoi(con_inf->values[i]);
} else if (strcmp(con_inf->keys[i], "replyid") == 0) {
replyid = con_inf->values[i];
}
}
if (!www_send_msg(con_inf->user, to, subj, conference, area, replyid, body)) {
page = (char *)malloc(50);
if (page == NULL) {
free(header);
free(footer);
return MHD_NO;
}
sprintf(page, "<h1>Error Sending Message</h1>");
} else {
page = (char *)malloc(21);
if (page == NULL) {
free(header);
free(footer);
return MHD_NO;
}
sprintf(page, "<h1>Message Sent!</h1>");
}
whole_page = (char *)malloc(strlen(header) + strlen(page) + strlen(footer) + 1);
sprintf(whole_page, "%s%s%s", header, page, footer);
} else {
free(header);
free(footer);
return MHD_NO;
}
}
response = MHD_create_response_from_buffer (strlen (whole_page), (void*) whole_page, MHD_RESPMEM_PERSISTENT);
MHD_add_response_header(response, MHD_HTTP_HEADER_CONTENT_TYPE, "text/html");
ret = MHD_queue_response (connection, MHD_HTTP_OK, response);
MHD_destroy_response (response);
free(page);
free(header);
free(footer);
return ret;
}
#endif