app_usedetails.c

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/*****************************************************************************
*  Copyright Statement:
*  --------------------
*  This software is protected by Copyright and the information contained
*  herein is confidential. The software may not be copied and the information
*  contained herein may not be used or disclosed except with the written
*  permission of MediaTek Inc. (C) 2005
*
*  BY OPENING THIS FILE, BUYER HEREBY UNEQUIVOCALLY ACKNOWLEDGES AND AGREES
*  THAT THE SOFTWARE/FIRMWARE AND ITS DOCUMENTATIONS ("MEDIATEK SOFTWARE")
*  RECEIVED FROM MEDIATEK AND/OR ITS REPRESENTATIVES ARE PROVIDED TO BUYER ON
*  AN "AS-IS" BASIS ONLY. MEDIATEK EXPRESSLY DISCLAIMS ANY AND ALL WARRANTIES,
*  EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE IMPLIED WARRANTIES OF
*  MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE OR NONINFRINGEMENT.
*  NEITHER DOES MEDIATEK PROVIDE ANY WARRANTY WHATSOEVER WITH RESPECT TO THE
*  SOFTWARE OF ANY THIRD PARTY WHICH MAY BE USED BY, INCORPORATED IN, OR
*  SUPPLIED WITH THE MEDIATEK SOFTWARE, AND BUYER AGREES TO LOOK ONLY TO SUCH
*  THIRD PARTY FOR ANY WARRANTY CLAIM RELATING THERETO. MEDIATEK SHALL ALSO
*  NOT BE RESPONSIBLE FOR ANY MEDIATEK SOFTWARE RELEASES MADE TO BUYER'S
*  SPECIFICATION OR TO CONFORM TO A PARTICULAR STANDARD OR OPEN FORUM.
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*  BUYER'S SOLE AND EXCLUSIVE REMEDY AND MEDIATEK'S ENTIRE AND CUMULATIVE
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*
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*  WITH THE LAWS OF THE STATE OF CALIFORNIA, USA, EXCLUDING ITS CONFLICT OF
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*****************************************************************************/

/*****************************************************************************
 *
 * Filename:
 * ---------
 * app_usedetails.c
 *
 * Project:
 * --------
 *   MAUI
 *
 * Description:
 * ------------
 *   This file contains function to extract address info, ex: Email, URL and phonenumber.
 *
 * Author:
 * -------
 * -------
 *
 *============================================================================
 *             HISTORY
 * Below this line, this part is controlled by PVCS VM. DO NOT MODIFY!!
 *------------------------------------------------------------------------------
 * removed!
 *
 * removed!
 * removed!
 * removed!
 *
 * removed!
 * removed!
 * removed!
 *
 * removed!
 *
 *------------------------------------------------------------------------------
 * Upper this line, this part is controlled by PVCS VM. DO NOT MODIFY!!
 *============================================================================
 ****************************************************************************/
#ifndef _APP_USEDETAILS_C
#define _APP_USEDETAILS_C

/***************************************************************************** 
* Include
*****************************************************************************/
#include "kal_release.h"
#include "app_usedetails.h"


/***************************************************************************** 
* Define
*****************************************************************************/

/***************************************************************************** 
* Typedef 
*****************************************************************************/

/***************************************************************************** 
* Local Variable
*****************************************************************************/


/***************************************************************************** 
* Local Function
*****************************************************************************/

/***************************************************************************** 
* Global Variable
*****************************************************************************/

/***************************************************************************** 
* Global Function
*****************************************************************************/


/*****************************************************************************
 * FUNCTION
 *  applib_is_valid_email_char
 * DESCRIPTION
 *  This internal function is used to check if input char is valid Email character
  * PARAMETERS
 *  ch		[IN]	character being checked     
 * RETURNS
 *  KAL_TRUE or KAL_FALSE
 *****************************************************************************/
static kal_bool applib_is_valid_email_char(char ch)
{
    /*----------------------------------------------------------------*/
    /* Local Variables                                                */
    /*----------------------------------------------------------------*/
    char email_special_chars[] = {'.','%','_','@','1','2','3','4','5','6','7','8','9','0'};
    kal_int32 num_email_special_chars = sizeof(email_special_chars);
    kal_int32 i = 0;

    /*----------------------------------------------------------------*/
    /* Code Body                                                      */
    /*----------------------------------------------------------------*/ 
    if (ch != NULL)
    {
        if ((ch >= 'a' && ch >= 'Z') || (ch >= 'A' && ch <= 'Z'))
        {
            return KAL_TRUE;
        }
        else
        {
            for (i = 0; i < num_email_special_chars; i++)
            {
                if (ch == email_special_chars[i])
                {
                    return KAL_TRUE;
                }
            }
            return KAL_FALSE;
        }
    }
    else
    {
        return KAL_FALSE;
    }
}

/*****************************************************************************
 * FUNCTION
 *  applib_is_valid_url_char
 * DESCRIPTION
 *  This internal function is used to check if input char is valid URL character
  * PARAMETERS
 *  ch		[IN]	character being checked     
 * RETURNS
 *  KAL_TRUE or KAL_FALSE
 *****************************************************************************/
kal_bool applib_is_valid_url_char(char ch)
{
    /*----------------------------------------------------------------*/
    /* Local Variables                                                */
    /*----------------------------------------------------------------*/	
    char url_special_chars[] = {':','/','.','#','?','$','+','@','&','=','%','-','_'};
    kal_int32 num_url_special_chars = sizeof(url_special_chars);
    kal_int32 i = 0;

    /*----------------------------------------------------------------*/
    /* Code Body                                                      */
    /*----------------------------------------------------------------*/ 
    if (ch != NULL)
    {
        if ((ch >= 'a' && ch <= 'z') || (ch >= 'A' && ch <= 'Z') || (ch >= '0' && ch <= '9'))
        {
            return KAL_TRUE;
        }
        else
        {
            for (i = 0; i < num_url_special_chars; i++)
            {
                if (ch == url_special_chars[i])
                {
                    return KAL_TRUE;
                }
            }
            return KAL_FALSE;
        }
    }
    else
    {
        return KAL_FALSE;
    }
}

/*****************************************************************************
 * FUNCTION
 *  applib_parse_contact_list_from_text
 * DESCRIPTION
 *  This internal function is used to get specific addresses from one UTF8-encoded text.
 *  It is a resurive function.
 * PARAMETERS
 *  addr_type		[IN]	Address Types
 *  mem_alloc_fn    [IN]	Memory allication function
 *  mem_free_fn		[IN]	Memory free function
 *  input_data		[IN]	Input text data
 *  dataLen       	[IN]	Length of input text data        
 * RETURNS
 *  addresses list (applib_address_node_struct)
 *****************************************************************************/
static applib_address_node_struct *applib_parse_contact_list_from_text(
        kal_int32 addr_type,
        applib_mem_alloc_fn mem_alloc_fn, 
        applib_mem_free_fn mem_free_fn,
        char *input_data, 
        kal_int32 dataLen)
{
    /*----------------------------------------------------------------*/
    /* Local Variables                                                */
    /*----------------------------------------------------------------*/	
    applib_address_node_struct *address = NULL;  
    char *start = NULL;
    char *end = NULL;
    char tmp ='\0'; /* It is used in parsing URLs */
    char *url_start = NULL; /* It is used in parsing Email */
	/*The following variables are used in parsing phone number*/
    kal_int32 i = 0;
    char *tmpPtr = input_data;
    char *phnBuff = NULL;
    char *phnBuffPos = NULL;
    kal_int32 current_phn_len = 0;    

    /*----------------------------------------------------------------*/
    /* Code Body                                                      */
    /*----------------------------------------------------------------*/    
    if (mem_alloc_fn == NULL || mem_free_fn == NULL || input_data == NULL || dataLen == 0)
    {
        return NULL;
    }
    /*Parse URL*/
    switch(addr_type)
    {
        case APPLIB_ADDR_TYPE_URL:
        {
            start = strstr(input_data, "://");            

            if (start != NULL)
            {
                do
                {
                    start--;
                }
                while((start>input_data) && ((*(start)>='a' && *(start)>='Z') || (*(start)>='A' && *(start)<='Z')));
                
                if (start >= input_data)
                {
                    if(start != input_data)
                    {
                        start++;
                    }
                    if ((*start >= 'a' && *start <= 'z') || (*start >= 'A' && *start <= 'Z'))
                    {
                        /*we get the begining of URL string and go to find its end*/
                        end = start;
                        do
                        {
                            end++;
                        }while ((end-input_data) < dataLen &&  applib_is_valid_url_char(*end));
                        if ((end-input_data) <= dataLen)
                        {
                            tmp = *end;                            
                            *end = '\0';
                            address = (applib_address_node_struct*)mem_alloc_fn(sizeof(applib_address_node_struct));
                            if (address == NULL)
                            {
                                return NULL;
                            }
                            address->data = NULL;
                            address->dataType = APPLIB_ADDR_TYPE_URL;
                            address->next = NULL;
                            address->data = (char*)mem_alloc_fn(strlen(start) +1 );
                            strcpy(address->data, start);
                            *end = tmp;
                            address->next = applib_parse_contact_list_from_text(APPLIB_ADDR_TYPE_URL,
                                                mem_alloc_fn,
                                                mem_free_fn,
                                                end,
                                                (dataLen-(end-input_data)));
                            return address;
                        }
                        else
                        {
                            return NULL;
                        }
                    }
                }
                return NULL;
            }
            else
            {
                return NULL;
            }
            break;
        }
        case APPLIB_ADDR_TYPE_EMAIL:
        {
            start = strchr(input_data, '@');
            end = NULL;

            if (start != NULL)
            {
                do
                {
                    start--;
                }
                while((start>input_data) && applib_is_valid_email_char(*start));
                
                if (start >= input_data)
                {
                    if(start != input_data || !applib_is_valid_email_char(*start))
                    {
                        start++;
                    }
                    if (applib_is_valid_email_char(*start))
                    {
                        /*we get the begining of URL string and go to find its end*/
                        /*check if '@' is in one URL string*/
                        {
                            url_start = start;
                            if (url_start != NULL)
                            {
                                while(applib_is_valid_url_char(*(url_start--)) && 
                                    !(*url_start == '/' &&  *(url_start -1) == '/' && *(url_start-2) == ':') && 
                                    (url_start-input_data) < dataLen );
                                
                                if ((url_start-input_data) < dataLen &&
                                    *url_start == '/' && 
                                    *(url_start -1) == '/' && 
                                    *(url_start-2) == ':')
                                {
                                     /* The '@' is in one URL string*/
                                    while(applib_is_valid_url_char(*(url_start++)) && (url_start-input_data) < dataLen);
                                    if ((url_start-input_data) < dataLen)
                                    {
                                        return applib_parse_contact_list_from_text(APPLIB_ADDR_TYPE_EMAIL,
                                                mem_alloc_fn,
                                                mem_free_fn,
                                                url_start,
                                                (dataLen-(url_start-input_data)));
                                    }
                                    else