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/* $Id: main.c 41 2024-08-22 04:26:35Z nishi $ */

#include <stdio.h>

#include "../config.h"

#include "rv_sanity.h"
#include "rv_query.h"
#include "rv_page.h"
#include "rv_util.h"
#include "rv_db.h"
#include "rv_auth.h"
#include "rv_multipart.h"

#include <stdlib.h>
#include <string.h>
#include <time.h>

char* postdata;

int main() {
        srand(time(NULL));
        rv_check_sanity();
        rv_init_db();
        rv_parse_query(getenv("QUERY_STRING"));
        rv_save_query('Q');
        postdata = malloc(1);
        postdata[0] = 0;
        int hasauth = 0;
        int use_multi = 0;
        char* type = getenv("CONTENT_TYPE");
        if(type == NULL) {
                type = rv_strdup("");
        } else {
                type = rv_strdup(type);
        }
        if(strcmp(type, "application/x-www-form-urlencoded") == 0) {
                char cbuf[2];
                cbuf[1] = 0;
                while(1) {
                        fread(cbuf, 1, 1, stdin);
                        if(feof(stdin)) break;
                        char* tmp = postdata;
                        postdata = rv_strcat(tmp, cbuf);
                        free(tmp);
                }
        } else {
                int i;
                for(i = 0; type[i] != 0; i++) {
                        if(type[i] == ';') {
                                type[i] = 0;
                                i++;
                                bool found = false;
                                char* bd = NULL;
                                for(; type[i] != 0; i++) {
                                        if(type[i] != ' ' && type[i] != '\t') {
                                                int j;
                                                char* boundary = type + i;
                                                for(j = 0; boundary[j] != 0; j++) {
                                                        if(boundary[j] == '=') {
                                                                boundary[j] = 0;
                                                                if(strcmp(boundary, "boundary") == 0) {
                                                                        bd = rv_strdup(boundary + j + 1);
                                                                        found = true;
                                                                }
                                                                break;
                                                        }
                                                }
                                                break;
                                        }
                                }
                                if(!found) {
                                        rv_error_http();
                                        printf("Bad multipart/form-data. Parsing fail.");
                                        goto freeall;
                                } else {
                                        char* multipart = NULL;
                                        unsigned long long length = 0;
                                        char buffer[512];
                                        while(1) {
                                                int len = fread(buffer, 1, 512, stdin);
                                                if(length > 0) {
                                                        char* old = multipart;
                                                        multipart = malloc(length + len);
                                                        int i;
                                                        for(i = 0; i < length; i++) {
                                                                multipart[i] = old[i];
                                                        }
                                                        free(old);
                                                        memcpy(multipart + length, buffer, len);
                                                        length += len;
                                                } else {
                                                        length += len;
                                                        multipart = malloc(length);
                                                        memcpy(multipart, buffer, len);
                                                }
                                                if(feof(stdin)) break;
                                        }
                                        if(multipart != NULL) {
                                                rv_parse_multipart(multipart, bd, length);
                                                free(multipart);
                                        }
                                }
                                if(bd != NULL) free(bd);
                                use_multi = 1;
                                break;
                        }
                }
        }
        if(use_multi == 0) {
                rv_parse_query(postdata);
                rv_save_query('P');
        }
        rv_init_auth();
        hasauth = 1;
        rv_process_page();
        printf("Content-Type: text/html\r\n");
        printf("\r\n");
        rv_print_page();
        if(use_multi == 0) {
                rv_load_query('P');
                rv_free_query();
        }
freeall:
        rv_load_query('Q');
        rv_free_query();
        rv_close_db();
        rv_free_multipart();
        if(hasauth) rv_free_auth();
        free(type);
}