dav/main.c

/*
 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS HEADER.
 *
 * Copyright 2012 Olaf Wintermann. All rights reserved.
 *
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions are met:
 *
 *   1. Redistributions of source code must retain the above copyright
 *      notice, this list of conditions and the following disclaimer.
 *
 *   2. Redistributions in binary form must reproduce the above copyright
 *      notice, this list of conditions and the following disclaimer in the
 *      documentation and/or other materials provided with the distribution.
 *
 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
 * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
 * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE
 * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
 * POSSIBILITY OF SUCH DAMAGE.
 */

#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <unistd.h>
#include <libxml/xmlerror.h>
#include <sys/types.h>
#include <sys/stat.h>

#include "propfind.h"
#include "utils.h"
#include "main.h"

void xmlerrorfnc(void * ctx, const char * msg, ... ) {
    // nothing
}

int main(int argc, char **argv) {
    xmlGenericErrorFunc fnc = xmlerrorfnc;
    initGenericErrorDefaultFunc(&fnc);
    
    if(argc < 2) {
        print_usage();
        return -1;
    }
    
    if(!strcmp(argv[1], "list") || !strcmp(argv[1], "ls")) {
        return cmd_list(argc - 2, argv + 2);
    } else if(!strcmp(argv[1], "get")) {
        return cmd_get(argc - 2, argv + 2);
    } else if(!strcmp(argv[1], "put")) {
        return cmd_put(argc - 2, argv + 2);
    }
    
    print_usage();
    return -1;
}

void print_usage() {
    
}

void get_file(CURL *curl, char *url, char *path) {
    curl_easy_setopt(curl, CURLOPT_URL, url);
    curl_easy_setopt(curl, CURLOPT_SSL_VERIFYPEER, 0);
    
    FILE *out = fopen(path, "w");
    
    curl_easy_setopt(curl, CURLOPT_WRITEFUNCTION, fwrite);
    curl_easy_setopt(curl, CURLOPT_WRITEDATA, out);
    
    CURLcode res = curl_easy_perform(curl);
    
    fclose(out);
    // handle some errors (http://curl.haxx.se/libcurl/c/libcurl-errors.html)
    switch(res) {
        case CURLE_OK: {
            return;
        }
        case CURLE_REMOTE_ACCESS_DENIED: {
            
            break;
        }
        case CURLE_SSL_CONNECT_ERROR: {
            
            break;
        }
        case CURLE_LOGIN_DENIED: {
            
            break;
        }
        case CURLE_REMOTE_FILE_NOT_FOUND: {
            
            break;
        }
        default: {
            
            break;
        }
    }
    
    unlink(path);
}

void put_file(CURL *curl, char *url, char *path) {
    curl_easy_setopt(curl, CURLOPT_URL, url);
    curl_easy_setopt(curl, CURLOPT_SSL_VERIFYPEER, 0);
    
    curl_easy_setopt(curl, CURLOPT_PUT, 1L);
    
    struct stat s;
    if(stat(path, &s) != 0) {
        perror("stat");
        fprintf(stderr, "file: %s\n", path);
        return;
    }
    
    FILE *in = fopen(path, "r");
    
    curl_easy_setopt(curl, CURLOPT_UPLOAD, 1L);
    curl_easy_setopt(curl, CURLOPT_READFUNCTION, fread);
    curl_easy_setopt(curl, CURLOPT_READDATA, in);
    curl_easy_setopt(curl, CURLOPT_INFILESIZE_LARGE, (curl_off_t)s.st_size);
    
    CURLcode res = curl_easy_perform(curl);
    fclose(in);
    
    if(res != CURLE_OK) {
        fprintf(stderr, "put_file: %s\n", curl_easy_strerror(res));
    }
}

int cmd_list(int argc, char **argv) {
    if(argc == 0) {
        return -1;
    }
    
    char *url = argv[0]; // TODO: use arg as url or alias
    
    CURL *curl = curl_easy_init();
    curl_easy_setopt(curl, CURLOPT_URL, url);
    Propfind *propfind = dav_propfind(curl);
    
    UCX_FOREACH(UcxDlist*, propfind->children, ch) {
        DavResource *resource = ch->data;
        printf("%s\n", resource->name);
    }
    
    // TODO: free propfind stuff
    curl_easy_cleanup(curl);
    
    return 0;
}

int cmd_get(int argc, char **argv) {
    if(argc == 0) {
        return -1;
    }
    
    char *url = argv[0]; // TODO: use arg as url or alias
    
    CURL *curl = curl_easy_init();
    curl_easy_setopt(curl, CURLOPT_URL, url);
    Propfind *propfind = dav_propfind(curl);
    
    if(propfind->resource->collection) {
        UCX_FOREACH(UcxDlist*, propfind->children, chd) {
            DavResource *resource = chd->data;
            if(!resource->collection) {
                char *resurl = util_child_url(propfind->url, resource->href);
                get_file(curl, resurl, resource->name);
            }
        }
    } else {
        get_file(curl, propfind->url, propfind->resource->name);
    }
    
    // TODO: free propfind stuff
    curl_easy_cleanup(curl);
    
    return 0;
}

int cmd_put(int argc, char **argv) {
    if(argc == 0) {
        return -1;
    }
    
    char *url = argv[0]; // TODO: use arg as url or alias
    char *path;
    if(argc > 0) {
        path = argv[1];
    } else {
        fprintf(stderr, "put: missing file argument\n");
        return -1;
    }
    
    char *uploadurl = util_upload_url(url, path);
    
    CURL *curl = curl_easy_init();
    
    // TODO: check possible name conflicts
    
    put_file(curl, uploadurl, path);
    
    curl_easy_cleanup(curl);
}