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smug_core.c
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smug_core.c
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/*
* Copyright (C) 2008 Greg Kroah-Hartman <[email protected]>
*
* This program is free software; you can redistribute it and/or modify it
* under the terms of the GNU General Public License as published by the
* Free Software Foundation version 2 of the License.
*
* This program is distributed in the hope that it will be useful, but
* WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* General Public License for more details.
*
* You should have received a copy of the GNU General Public License along
* with this program; if not, write to the Free Software Foundation, Inc.,
* 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
*/
#include <stdio.h>
#include <stdlib.h>
#include <stddef.h>
#include <string.h>
#include <getopt.h>
#include <errno.h>
#include <fcntl.h>
#include <unistd.h>
#include <sys/stat.h>
#include <ctype.h>
#include <alloca.h>
#include <curl/curl.h>
#include "list.h"
#include "md5.h"
#include "smug.h"
#include "smugbatch_version.h"
static char *api_key = "ABW1oenNznek2rD4AIiFn7OhkEkmzEIb";
static char *user_agent = "smugbatch/"SMUGBATCH_VERSION" ([email protected])";
static char *session_id_tag = "Session id";
static char *smugmug_album_list_url =
"https://secure.smugmug.com/services/api/rest/1.2.2/?"
"method=smugmug.albums.get"
"&SessionID=%s&APIKey=%s";
static char *smugmug_album_create_url =
"https://secure.smugmug.com/services/api/rest/1.2.2/?"
"method=smugmug.albums.create"
"&SessionID=%s&Title=%s&CategoryID=%s&AlbumTemplateID=%s";
static char *smugmug_category_list_url =
"https://secure.smugmug.com/services/api/rest/1.2.2/?"
"method=smugmug.categories.get"
"&SessionID=%s";
static char *smugmug_quicksettings_list_url =
"https://secure.smugmug.com/services/api/rest/1.2.2/?"
"method=smugmug.albumtemplates.get"
"&SessionID=%s";
static char *smugmug_login_url =
"https://secure.smugmug.com/services/api/rest/1.2.2/?"
"method=smugmug.login.withPassword"
"&EmailAddress=%s&Password=%s&APIKey=%s";
static char *smugmug_logout_url =
"https://secure.smugmug.com/services/api/rest/1.2.2/?"
"method=smugmug.logout"
"&SessionID=%s&APIKey=%s";
static char *smugmug_image_list_url =
"https://secure.smugmug.com/services/api/rest/1.2.2/?"
"method=smugmug.images.get"
"&SessionID=%s&Heavy=1&AlbumID=%s&AlbumKey=%s";
static char *smugmug_upload_url =
"http://upload.smugmug.com/%s";
CURL *curl_init(void)
{
CURL *curl;
curl = curl_easy_init();
if (!curl) {
fprintf(stderr, "Can not init CURL!\n");
return NULL;
}
curl_easy_setopt(curl, CURLOPT_USERAGENT, user_agent);
/* some ssl sanity checks on the connection we are making */
curl_easy_setopt(curl, CURLOPT_SSL_VERIFYPEER, 0);
curl_easy_setopt(curl, CURLOPT_SSL_VERIFYHOST, 0);
return curl;
}
static char *get_su_cookie(CURL *curl)
{
CURLcode res;
struct curl_slist *cookies;
struct curl_slist *nc;
char *cookie = NULL;
res = curl_easy_getinfo(curl, CURLINFO_COOKIELIST, &cookies);
if (res != CURLE_OK) {
fprintf(stderr, "Curl curl_easy_getinfo failed: %s\n",
curl_easy_strerror(res));
exit(1);
}
nc = cookies;
while (nc) {
char domain[50], p1[50], p2[50], p3[50], name[50], value[100];
long unsigned int t;
int res2;
/* #HttpOnly_.smugmug.com\tTRUE\t/\tFALSE\t0\tSMSESS\t99363be4c3ceb3f153f875216539524a */
res2 =
sscanf(nc->data, "%49s\t%49s\t%49s\t%49s\t%lu\t%49s\t%99s", domain, p1,
p2, p3, &t, name, value);
if (res2 == 7 && strcmp(name, "_su") == 0) {
cookie = valloc(strlen(value) + 1 + 4);
sprintf(cookie, "_su=%s", value);
}
nc = nc->next;
}
curl_slist_free_all(cookies);
return cookie;
}
static void curl_set_cookie(CURL *curl, const char *cookie)
{
if (cookie == NULL)
return;
curl_easy_setopt(curl, CURLOPT_COOKIE, cookie);
}
char *my_basename(char *name)
{
char *temp;
int length = strlen(name);
temp = &name[length];
while (length && *temp != '/') {
--temp;
--length;
}
if (*temp == '/')
++temp;
return strdup(temp);
}
/**
* get_string_from_stdin - reads a string from standard input
*
* returns a pointer to a buffer that must be later freed by the caller
* with a call to free().
*/
char *get_string_from_stdin(void)
{
char *temp;
char *string;
string = zalloc(100);
if (!string)
return NULL;
if (!fgets(string, 99, stdin)) {
free(string);
return NULL;
}
temp = strchr(string, '\n');
*temp = '\0';
return string;
}
void album_list_free(struct list_head *albums)
{
struct album *album;
struct album *temp;
list_for_each_entry_safe(album, temp, albums, entry) {
dbg("cleaning up album %s\n", album->title);
free(album->id);
free(album->key);
free(album->title);
files_list_free(&album->files);
free(album);
}
}
void files_list_free(struct list_head *files)
{
struct filename *filename;
struct filename *temp;
list_for_each_entry_safe(filename, temp, files, entry) {
dbg("cleaning up filename %s\n", filename->filename);
free(filename->filename);
if (filename->basename)
free(filename->basename);
if (filename->id)
free(filename->id);
if (filename->key)
free(filename->key);
if (filename->caption)
free(filename->caption);
if (filename->original_url)
free(filename->original_url);
free(filename);
}
}
/**
* find_value - attempts to find a value within a string
*
* Works a lot like strstr() except we are searching through a
* "string = value" type buffer. The value that the needle is set
* to is then copied into a new buffer and returned. This buffer must be
* later freed with a call to free().
*
* This lets us do a "poor mans" xml parser without really having to parse
* xml. We just rely on the fact that the tag values come in a specific
* order. Yeah, it's cheating, but for now, we seem to get away with it.
*
* Returns NULL if the needle is not found in the haystack, or if we are
* unable to allocate the needed memory buffer.
*/
char *find_value(const char *haystack, const char *needle, char **new_pos)
{
char *location;
char *temp;
char *value;
location = strstr(haystack, needle);
if (!location)
return NULL;
value = zalloc(1000);
if (!value)
return NULL;
location += strlen(needle);
temp = value;
++location; /* '=' */
++location; /* '"' */
while (*location != '"') {
*temp = *location;
++temp;
++location;
}
*temp = '\0';
if (new_pos)
*new_pos = location;
return value;
}
/**
* smug_curl_buffer_alloc- allocates a struct smug_curl_buffer
*
* returns a pointer to a struct smug_curl_buffer that must be later freed
* with a call to smug_curl_buffer_free()
*/
struct smug_curl_buffer *smug_curl_buffer_alloc(void)
{
struct smug_curl_buffer *buffer;
buffer = zalloc(sizeof(*buffer));
if (!buffer)
return NULL;
/* start out with a data buffer of 1 byte to
* make the buffer fill logic simpler */
buffer->data = zalloc(1);
if (!buffer->data) {
free(buffer);
return NULL;
}
buffer->length = 0;
return buffer;
}
void smug_curl_buffer_free(struct smug_curl_buffer *buffer)
{
if (!buffer)
return;
free(buffer->data);
free(buffer);
}
/**
* session_alloc - creates a struct session
*
* returns a pointer to a struct session that must be later freed with a
* call to smug_curl_buffer_free()
*/
struct session *session_alloc(void)
{
struct session *session;
session = zalloc(sizeof(*session));
session->su_cookie = NULL;
if (!session)
return NULL;
session->su_cookie = NULL;
INIT_LIST_HEAD(&session->albums);
INIT_LIST_HEAD(&session->files_upload);
INIT_LIST_HEAD(&session->files_download);
return session;
}
void session_free(struct session *session)
{
if (!session)
return;
free(session->password);
free(session->email);
free(session->session_id);
album_list_free(&session->albums);
files_list_free(&session->files_upload);
files_list_free(&session->files_download);
free(session);
}
size_t curl_callback(void *buffer, size_t size, size_t nmemb, void *userp)
{
struct smug_curl_buffer *curl_buf = userp;
size_t buffer_size = size * nmemb;
char *temp;
if ((!buffer) || (!buffer_size) || (!curl_buf))
return -EINVAL;
/* add to the data we already have */
temp = zalloc(curl_buf->length + buffer_size + 1);
if (!temp)
return -ENOMEM;
memcpy(temp, curl_buf->data, curl_buf->length);
free(curl_buf->data);
curl_buf->data = temp;
memcpy(&curl_buf->data[curl_buf->length], (char *)buffer, buffer_size);
curl_buf->length += buffer_size;
dbg("%s\n", curl_buf->data);
return buffer_size;
}
int get_session_id(struct smug_curl_buffer *buffer, struct session *session)
{
session->session_id = find_value(buffer->data, session_id_tag, NULL);
if (!session->session_id)
return -EINVAL;
return 0;
}
int get_albums(struct smug_curl_buffer *buffer, struct session *session)
{
char *temp = buffer->data;
struct album *album;
char *id;
char *key;
char *title;
int found_one = 0;
int album_number = 0;
while (1) {
id = find_value(temp, "Album id", &temp);
if (!id)
break;
key = find_value(temp, "Key", &temp);
if (!key)
break;
title = find_value(temp, "Title", &temp);
if (!title)
break;
dbg("%s: %s: %s\n", id, key, title);
album = zalloc(sizeof(*album));
INIT_LIST_HEAD(&album->files);
album->id = id;
album->key = key;
album->title = title;
album->number = ++album_number;
list_add_tail(&album->entry, &session->albums);
found_one++;
}
if (!found_one)
return -EINVAL;
return 0;
}
static int get_images(struct smug_curl_buffer *buffer, struct album *album)
{
char *temp = buffer->data;
struct filename *filename;
char *id;
char *key;
char *name;
char *caption;
char *original_url;
int found_one = 0;
while (1) {
id = find_value(temp, "Image id", &temp);
if (!id)
break;
key = find_value(temp, "Key", &temp);
if (!key)
break;
name = find_value(temp, "FileName", &temp);
if (!name)
break;
caption = find_value(temp, "Caption", &temp);
if (!caption)
break;
original_url = find_value(temp, "OriginalURL", &temp);
if (!original_url)
break;
dbg("%s: %s: %s: %s: %s\n",
id, key, name, caption, original_url);
filename = zalloc(sizeof(*filename));
if (!filename)
break;
filename->id = id;
filename->key = key;
filename->filename = name;
filename->caption = caption;
filename->original_url = original_url;
list_add_tail(&filename->entry, &album->files);
found_one++;
}
if (!found_one)
return -EINVAL;
return 0;
}
static unsigned char md5_data[100];
/* from coreutils */
static inline void *ptr_align(void const *ptr, size_t alignment)
{
char const *p0 = ptr;
char const *p1 = p0 + alignment - 1;
return (void *) (p1 - (size_t) p1 % alignment);
}
static void sprintf_md5(char *string, unsigned char *md5)
{
sprintf(string,
"%.2x%.2x%.2x%.2x%.2x%.2x%.2x%.2x"
"%.2x%.2x%.2x%.2x%.2x%.2x%.2x%.2x",
md5[0], md5[1], md5[2], md5[3], md5[4], md5[5], md5[6],
md5[7], md5[8], md5[9], md5[10], md5[11], md5[12], md5[13],
md5[14], md5[15]);
}
int generate_md5s(struct list_head *files)
{
struct filename *filename;
FILE *fp;
int err;
unsigned char *md5 = ptr_align(md5_data, 4);
char md5_string[64];
if (!files)
return 0;
/* let's generate the md5 of the files we are going to upload */
list_for_each_entry(filename, files, entry) {
dbg("calculating md5 of %s\n", filename->filename);
fp = fopen(filename->filename, "rb");
if (!fp) {
printf("Can not open %s, exiting\n",
filename->filename);
return -EINVAL;
}
err = md5_stream(fp, &md5[0]);
if (err) {
printf("error generating md5 for %s, exiting\n",
filename->filename);
fclose(fp);
return -err;
}
memcpy(filename->md5, md5, 16);
sprintf_md5(md5_string, &md5[0]);
dbg("md5 of %s is %s\n", filename->filename, md5_string);
fclose(fp);
}
return 0;
}
int curl_progress_func(void *arg_progress,
double dltotal, double dlnow,
double ultotal, double ulnow)
{
int bytes_now;
int total;
int percent;
int data_avg = 0;
struct progress *progress = (struct progress *)arg_progress;
if (!progress)
return -EINVAL;
time_t now = time(NULL);
if (progress->start == 0)
progress->start = now;
time_t timediff = now - progress->start;
if (progress->upload) {
bytes_now = (int)ulnow;
total = (int)ultotal;
percent = (int)(ulnow*100.0/ultotal);
} else {
bytes_now = (int)dlnow;
total = (int)dltotal;
percent = (int)(dlnow*100.0/dltotal);
}
if (timediff > 0)
data_avg = (bytes_now / timediff / 1024);
fprintf(stdout, " \r%d of %d: %s: %d of %d (%d%%) %d KiB/s",
progress->position, progress->total,
progress->filename, bytes_now, total, percent, data_avg);
return 0;
}
int upload_file(struct session *session, struct filename *filename,
struct album *album, int position, int total)
{
struct smug_curl_buffer *buffer;
CURL *curl;
FILE *fd;
int file_handle;
struct stat file_info;
CURLcode res;
char buf[100];
char url[1000];
char md5_string[64];
struct curl_slist *headers = NULL;
struct progress *progress;
buffer = smug_curl_buffer_alloc();
if (!buffer)
return -ENOMEM;
progress = zalloc(sizeof(*progress));
if (!progress) {
smug_curl_buffer_free(buffer);
return -ENOMEM;
}
progress->filename = filename->basename;
progress->upload = 1;
progress->position = position;
progress->total = total;
curl = curl_init();
if (!curl) {
free(progress);
smug_curl_buffer_free(buffer);
return -EINVAL;
}
file_handle = open(filename->filename, O_RDONLY);
fstat(file_handle, &file_info);
close(file_handle);
fd = fopen(filename->filename, "rb");
if (!fd) {
curl_easy_cleanup(curl);
free(progress);
smug_curl_buffer_free(buffer);
return -EINVAL;
}
dbg("%s is %d bytes big\n", filename->filename, (int)file_info.st_size);
sprintf(url, smugmug_upload_url, filename->basename);
curl_set_cookie(curl, session->su_cookie);
curl_easy_setopt(curl, CURLOPT_URL, url);
curl_easy_setopt(curl, CURLOPT_WRITEFUNCTION, curl_callback);
curl_easy_setopt(curl, CURLOPT_WRITEDATA, buffer);
curl_easy_setopt(curl, CURLOPT_UPLOAD, 1);
curl_easy_setopt(curl, CURLOPT_PUT, 1);
curl_easy_setopt(curl, CURLOPT_READDATA, fd);
curl_easy_setopt(curl, CURLOPT_INFILESIZE_LARGE,
(curl_off_t)file_info.st_size);
sprintf_md5(&md5_string[0], &filename->md5[0]);
sprintf(buf, "Content-MD5: %s", md5_string);
dbg("%s\n", buf);
headers = curl_slist_append(headers, buf);
headers = curl_slist_append(headers, "X-Smug-Version: 1.2.2");
headers = curl_slist_append(headers, "X-Smug-ResponseType: REST");
sprintf(buf, "X-Smug-SessionID: %s", session->session_id);
dbg("%s\n", buf);
headers = curl_slist_append(headers, buf);
sprintf(buf, "X-Smug-AlbumID: %s", album->id);
dbg("%s\n", buf);
headers = curl_slist_append(headers, buf);
sprintf(buf, "X-Smug-FileName: %s", filename->basename);
dbg("%s\n", buf);
headers = curl_slist_append(headers, buf);
curl_easy_setopt(curl, CURLOPT_HTTPHEADER, headers);
if (!session->quiet) {
curl_easy_setopt(curl, CURLOPT_NOPROGRESS, 0);
curl_easy_setopt(curl, CURLOPT_PROGRESSFUNCTION,
curl_progress_func);
curl_easy_setopt(curl, CURLOPT_PROGRESSDATA, progress);
}
dbg("starting upload...\n");
res = curl_easy_perform(curl);
if (res)
fprintf(stderr, "upload error %d, exiting\n", res);
curl_slist_free_all(headers);
if (!session->quiet) {
fprintf(stdout, "\n");
fflush(stdout);
}
curl_easy_cleanup(curl);
smug_curl_buffer_free(buffer);
free(progress);
return (int)res;
}
int upload_files(struct session *session, struct album *album)
{
struct filename *filename;
int num_to_upload = 0;
int i = 0;
int retval;
list_for_each_entry(filename, &session->files_upload, entry)
++num_to_upload;
dbg("num_to_upload = %d\n", num_to_upload);
list_for_each_entry(filename, &session->files_upload, entry) {
++i;
retval = upload_file(session, filename, album,
i, num_to_upload);
if (retval)
return retval;
}
return 0;
}
struct album *select_album(const char *album_title, const char *category_title,
const char *qs_name, struct session *session)
{
struct album *album;
int found_album;
char *string;
int album_no = 0;
if (!album_title) {
fprintf(stdout, "Available albums:\n");
list_for_each_entry(album, &session->albums, entry)
fprintf(stdout, "\t%3d: %s\n",
album->number, album->title);
fprintf(stdout, "\n");
fprintf(stdout, "Please enter number of album to upload to: ");
string = get_string_from_stdin();
if (string) {
album_no = atoi(string);
free(string);
}
found_album = 0;
list_for_each_entry(album, &session->albums, entry) {
if (album->number == album_no) {
found_album = 1;
album_title = album->title;
break;
}
}
if (!found_album) {
fprintf(stdout, "Album number %d is not found\n",
album_no);
return NULL;
}
} else {
found_album = 0;
list_for_each_entry(album, &session->albums, entry) {
if (strcmp(album->title, album_title) == 0) {
found_album = 1;
break;
}
}
if (!found_album && category_title) {
album = smug_create_album(album_title, category_title,
qs_name, session);
if (album)
found_album = 1;
}
if (!found_album) {
fprintf(stdout, "Album %s is not found\n", album_title);
return NULL;
}
}
return album;
}
int smug_login(struct session *session)
{
char url[500];
struct smug_curl_buffer *curl_buf;
CURL *curl = NULL;
CURLcode res;
int retval;
if (!session)
return -EINVAL;
curl_buf = smug_curl_buffer_alloc();
if (!curl_buf)
return -ENOMEM;
curl = curl_init();
if (!curl)
return -EINVAL;
sprintf(url, smugmug_login_url, session->email,
session->password, api_key);
dbg("url = %s\n", url);
curl_easy_setopt(curl, CURLOPT_URL, url);
curl_easy_setopt(curl, CURLOPT_COOKIEFILE, "");
/* log into smugmug */
curl_easy_setopt(curl, CURLOPT_WRITEFUNCTION, curl_callback);
curl_easy_setopt(curl, CURLOPT_WRITEDATA, curl_buf);
res = curl_easy_perform(curl);
if (res) {
printf("error(%d) trying to login\n", res);
return -EINVAL;
}
session->su_cookie = get_su_cookie(curl);
char *rsp_stat = find_value(curl_buf->data, "rsp stat", NULL);
if (!rsp_stat)
return -EINVAL;
if (strcmp(rsp_stat, "fail") == 0) {
char *msg = find_value(curl_buf->data, "msg", NULL);
printf("error to login: %s\n", msg);
free(msg);
}
free(rsp_stat);
retval = get_session_id(curl_buf, session);
if (retval) {
fprintf(stderr, "session_id was not found\n");
return -EINVAL;
}
curl_easy_cleanup(curl);
smug_curl_buffer_free(curl_buf);
return 0;
}
int smug_logout(struct session *session)
{
char url[500];
struct smug_curl_buffer *curl_buf;
CURL *curl = NULL;
CURLcode res;
if (!session)
return -EINVAL;
curl_buf = smug_curl_buffer_alloc();
if (!curl_buf)
return -ENOMEM;
curl = curl_init();
if (!curl) {
smug_curl_buffer_free(curl_buf);
return -EINVAL;
}
sprintf(url, smugmug_logout_url, session->session_id, api_key);
dbg("url = %s\n", url);
curl_set_cookie(curl, session->su_cookie);
curl_easy_setopt(curl, CURLOPT_URL, url);
curl_easy_setopt(curl, CURLOPT_WRITEFUNCTION, curl_callback);
curl_easy_setopt(curl, CURLOPT_WRITEDATA, curl_buf);
res = curl_easy_perform(curl);
if (res) {
fprintf(stderr, "error(%d) trying to logout\n", res);
curl_easy_cleanup(curl);
smug_curl_buffer_free(curl_buf);
return -EINVAL;
}
curl_easy_cleanup(curl);
smug_curl_buffer_free(curl_buf);
return 0;
}
int smug_get_albums(struct session *session)
{
char url[1000];
struct smug_curl_buffer *curl_buf;
CURL *curl = NULL;
CURLcode res;
int retval;
if (!session)
return -EINVAL;
curl_buf = smug_curl_buffer_alloc();
if (!curl_buf)
return -ENOMEM;
curl = curl_init();
if (!curl) {
smug_curl_buffer_free(curl_buf);
return -EINVAL;
}
sprintf(url, smugmug_album_list_url, session->session_id, api_key);
dbg("url = %s\n", url);
curl_set_cookie(curl, session->su_cookie);
curl_easy_setopt(curl, CURLOPT_URL, url);
curl_easy_setopt(curl, CURLOPT_WRITEFUNCTION, curl_callback);
curl_easy_setopt(curl, CURLOPT_WRITEDATA, curl_buf);
res = curl_easy_perform(curl);
if (res) {
fprintf(stderr, "error(%d) trying to read list of albums\n",
res);
curl_easy_cleanup(curl);
smug_curl_buffer_free(curl_buf);
return -EINVAL;
}
retval = get_albums(curl_buf, session);
if (retval) {
fprintf(stderr, "error parsing albums\n");
curl_easy_cleanup(curl);
smug_curl_buffer_free(curl_buf);
return -EINVAL;
}
curl_easy_cleanup(curl);
smug_curl_buffer_free(curl_buf);
return 0;
}
/**
* returns a pointer to a buffer that must be later freed by the caller
* with a call to free().
*/
char *smug_get_quicksettings_id(const char *qs_name, struct session *session)
{
char url[1000];
struct smug_curl_buffer *curl_buf;
CURL *curl = NULL;
CURLcode res;
if (!session)
return NULL;
curl_buf = smug_curl_buffer_alloc();
if (!curl_buf)
return NULL;
curl = curl_init();
if (!curl) {
smug_curl_buffer_free(curl_buf);
return NULL;
}
sprintf(url, smugmug_quicksettings_list_url, session->session_id);
dbg("url = %s\n", url);
curl_set_cookie(curl, session->su_cookie);
curl_easy_setopt(curl, CURLOPT_URL, url);
curl_easy_setopt(curl, CURLOPT_WRITEFUNCTION, curl_callback);
curl_easy_setopt(curl, CURLOPT_WRITEDATA, curl_buf);
res = curl_easy_perform(curl);
curl_easy_cleanup(curl);
if (res) {
fprintf(stderr, "error(%d) trying to get quicksettings\n", res);
smug_curl_buffer_free(curl_buf);
return NULL;
}
char *rsp_stat = find_value(curl_buf->data, "rsp stat", NULL);
if (!rsp_stat) {
smug_curl_buffer_free(curl_buf);
return NULL;
}
if (strcmp(rsp_stat, "fail") == 0) {
char *msg = find_value(curl_buf->data, "msg", NULL);
printf("error to get quicksettings: %s\n", msg);
free(msg);
smug_curl_buffer_free(curl_buf);
return NULL;
}
free(rsp_stat);
char *temp = curl_buf->data;
char *id = NULL;
char *name = NULL;
while (1) {
id = find_value(temp, "AlbumTemplate id", &temp);
name = find_value(temp, "AlbumTemplateName", &temp);
if (!id || !name)
break;
dbg("%s: %s\n", id, name);
if (strcmp(name, qs_name) == 0) {
free(name);
smug_curl_buffer_free(curl_buf);
return id;
}
}
if (id)
free(id);
if (name)
free(name);
smug_curl_buffer_free(curl_buf);
return NULL;
}
/**
* returns a pointer to a buffer that must be later freed by the caller
* with a call to free().
*/
char *smug_get_category_id(const char *category_title, struct session *session)
{
char url[1000];
struct smug_curl_buffer *curl_buf;
CURL *curl = NULL;
CURLcode res;
if (!session)
return NULL;
curl_buf = smug_curl_buffer_alloc();
if (!curl_buf)
return NULL;
curl = curl_init();
if (!curl) {
smug_curl_buffer_free(curl_buf);
return NULL;
}
sprintf(url, smugmug_category_list_url, session->session_id);
dbg("url = %s\n", url);
curl_set_cookie(curl, session->su_cookie);
curl_easy_setopt(curl, CURLOPT_URL, url);
curl_easy_setopt(curl, CURLOPT_WRITEFUNCTION, curl_callback);
curl_easy_setopt(curl, CURLOPT_WRITEDATA, curl_buf);
res = curl_easy_perform(curl);
curl_easy_cleanup(curl);
if (res) {
fprintf(stderr, "error(%d) trying to get category\n", res);
smug_curl_buffer_free(curl_buf);
return NULL;
}
char *rsp_stat = find_value(curl_buf->data, "rsp stat", NULL);
if (!rsp_stat) {
smug_curl_buffer_free(curl_buf);
return NULL;
}
if (strcmp(rsp_stat, "fail") == 0) {
char *msg = find_value(curl_buf->data, "msg", NULL);
printf("error to get category: %s\n", msg);
free(msg);
smug_curl_buffer_free(curl_buf);
return NULL;
}
free(rsp_stat);
char *temp = curl_buf->data;
char *id = NULL;
char *title = NULL;
while (1) {
id = find_value(temp, "Category id", &temp);
/* NOTE: In 1.2.1 "Title" will change to "Name" */
title = find_value(temp, "Title", &temp);
if (!id || !title)
break;
dbg("%s: %s\n", id, title);
if (strcmp(title, category_title) == 0) {
free(title);
smug_curl_buffer_free(curl_buf);
return id;
}
}
if (id)
free(id);
if (title)
free(title);