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/* Copyright (c) 2008 Michael Rasmussen (mir@datanom.net)
*
* 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; either version 3 of the License, or
* (at your option) any later version.
*
* 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., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
*/
#ifndef __CALDAV_UTILS_H__
#define __CALDAV_UTILS_H__
#include <glib.h>
#include <stdlib.h>
#include <curl/curl.h>
#include "caldav.h"
/**
* @typedef struct _CALDAV_SETTINGS caldav_settings
* A pointer to a struct _CALDAV_SETTINGS
*/
typedef struct _CALDAV_SETTINGS caldav_settings;
/**
* @struct _CALDAV_SETTINGS
* A struct used to exchange all user input between various parts
* of the library
*/
struct _CALDAV_SETTINGS {
gchar* username;
gchar* password;
gchar* url;
gchar* file;
gboolean usehttps;
gboolean verify_ssl_certificate;
gchar* custom_cacert;
gboolean debug;
gboolean use_locking;
char trace_ascii;
CALDAV_ACTION ACTION;
time_t start;
time_t end;
};
/**
* @typedef struct MemoryStruct memory_ptr
* A pointer to a struct MemoryStruct
*/
typedef struct MemoryStruct memory_ptr;
/**
* @struct MemoryStruct
* Used to hold messages between the CalDAV server and the library
*/
struct MemoryStruct {
char *memory;
size_t size;
};
/** @struct config_data
* Used to exchange user options to the library
*/
struct config_data {
char trace_ascii;
};
/**
* This function is burrowed from the libcurl documentation
* @param text
* @param stream
* @param ptr
* @param size
* @param nohex
*/
void dump(const char* text, FILE* stream, char* ptr, size_t size, char nohex);
/**
* This function is burrowed from the libcurl documentation
* @param handle
* @param type
* @param data
* @param size
* @param userp
* @return
*/
int my_trace(CURL* handle, curl_infotype type, char* data, size_t size, void* userp);
/**
* This function is burrowed from the libcurl documentation
* @param ptr
* @param size
* @return void* to memory region
*/
size_t WriteMemoryCallback(void* ptr, size_t size, size_t nmemb, void* data);
/**
* This function is burrowed from the libcurl documentation
* @param ptr
* @param size
* @param nmemb
* @param data
* @return number of written bytes
*/
size_t WriteHeaderCallback(void* ptr, size_t size, size_t nmemb, void* data);
/*size_t ReadMemoryCallback(void* ptr, size_t size, size_t nmemb, void* data);*/
/**
* Initialize caldav settings structure.
* @param settings @see caldav_settings
*/
void init_caldav_settings(caldav_settings* settings);
/**
* Free momory assigned to caldav settings structure.
* @param settings @see caldav_settings
*/
void free_caldav_settings(caldav_settings* settings);
/**
* Parse URL
* @param settings @see caldav_settings
* @param url String containing URL to collection
*/
void parse_url(caldav_settings* settings, const char* url);
/**
* Find a specific HTTP header from last request
* @param header HTTP header to search for
* @param headers String of HTTP headers from last request
* @param lowcase Should string be returned in all lower case.
* @return The header found or NULL
*/
gchar* get_response_header(
const char* header, gchar* headers, gboolean lowcase);
/**
* Parse response from CalDAV server
* @param report Response from server
* @param element XML element to find
* @param type VCalendar element to find
* @return the parsed result
*/
gchar* parse_caldav_report(char* report, const char* element, const char* type);
/**
* Convert a time_t variable to CalDAV DateTime
* @param time a specific date and time
* @return the CalDAV DateTime
*/
gchar* get_caldav_datetime(time_t* time);
/**
* Create a random text string, using MD5. @see caldav_md5_hex_digest()
* @param text some text to randomize
* @return MD5 hash of text
*/
gchar* random_file_name(gchar* text);
/**
* Does the event contain a UID element or not. If not add it.
* @param object A specific event
* @return event, eventually added UID
*/
gchar* verify_uid(gchar* object);
/**
* Fetch a URL from a XML element
* @param text String
* @return URL
*/
gchar* get_url(gchar* text);
/**
* Fetch host from URL
* @param url URL
* @return host
*/
gchar* get_host(gchar* url);
/**
* Fetch the etag element from XML
* @param text String
* @return etag
*/
gchar* get_etag(gchar* text);
/**
* Fetch any element from XML
* @param text String
* @return element
*/
gchar* get_tag(const gchar* tag, gchar* text);
/**
* rebuild a raw URL with https if needed from the settings
* @param settings caldav_settings
* @return URL
*/
gchar* rebuild_url(caldav_settings* setting, gchar* uri);
/**
* Prepare a curl connection
* @param settings caldav_settings
* @return CURL
*/
CURL* get_curl(caldav_settings* setting);
#endif
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