📄 psp_rss_feed.cpp
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{
//Frame Header is four characters,
//four bytes for size
// (Size is 28-bit integer composed of the
// last 7 bits of each byte, most significant
// first [except in the case of the MCDI frame].
// It does not include the 10 byte frame header.),
//2 bytes for flags,
//and 1 byte for text type
// (0x00 = ISO-8859-1,
// 0x01 = UTF-16,
// 0x02 = UTF-16BE,
// 0x03 = UTF-8)
audiofile.seekg(cursor);
//Debug
//printf("pointer = %X\ncursor = %X\n", (int)audiofile.tellg(), cursor);
audiofile.readsome(temp, 10);
cursor += 10;
i=4;
//Padding at end of ID3 tag (supposedly version 4 and up only, but it is in version 3 sometimes)
if (temp[0]==0)
break;
//The MCDI frame size is a direct 32-bit integer
else if (temp[0]=='M' && temp[1]=='C' && temp[2]=='D' && temp[3]=='I')
{
//Most Significant byte * 256^3
frame_length = (temp[i++] & 0xFF)*16777216;
//Next to Most Significant byte * 256^2
frame_length += (temp[i++] & 0xFF)*65536;
//Next Least Significant byte * 256
frame_length += (temp[i++] & 0xFF)*256;
//Least Significant byte
frame_length += (temp[i++] & 0xFF);
}
else
{
//Most Significant byte * 128^3
frame_length = (temp[i++] & 0xFF)*2097152;
//Next to Most Significant byte * 128^2
frame_length += (temp[i++] & 0xFF)*16384;
//Next Least Significant byte * 128
frame_length += (temp[i++] & 0xFF)*128;
//Least Significant byte
frame_length += (temp[i++] & 0xFF);
}
//Check for major screw up
if (frame_length > (id3_length - cursor))
break;
temp[4]=0;
//Debug
//printf("temp = %s\nframe_length = %X, temp[5-9] = %02X%02X%02X%02X%02X\n", temp, frame_length, temp[5] & 0xFF, temp[6] & 0xFF, temp[7] & 0xFF, temp[8] & 0xFF, temp[9] & 0xFF);
if (strcmp(temp, "TIT2") == 0 && default_title == true)
{
audiofile.seekg(cursor);
audiofile.readsome(temp, 1);
cursor += 1;
frame_length--;
//If UTF-16
if (temp[0] == 0x01 || temp[0] == 0x02)
{
while (frame_length > 0)
{
//If less than 1024 bytes left read difference
if (frame_length < 1024)
{
audiofile.seekg(cursor);
audiofile.readsome(temp, frame_length);
cursor += frame_length;
remove_nulls(temp, frame_length);
frame_length=0;
}
else
{
audiofile.seekg(cursor);
audiofile.readsome(temp, 1024);
cursor += 1024;
remove_nulls(temp, 1024);
frame_length -= 1024;
}
title += temp;
temp[0]=0;
}
}
//If ISO or UTF-8 or other
else //if (temp[0] == 0x00 || temp[0] == 0x03)
{
while (frame_length > 0)
{
//If less than 1024 bytes left read difference
if (frame_length < 1024)
{
audiofile.seekg(cursor);
audiofile.readsome(temp, frame_length);
cursor += frame_length;
temp[frame_length]=0;
frame_length=0;
}
else
{
audiofile.seekg(cursor);
audiofile.readsome(temp, 1024);
cursor += 1024;
frame_length -= 1024;
}
title += temp;
//Debug
//printf("temp = %s\ntitle = %s\n", temp, title.c_str());
temp[0]=0;
}
}
default_title = false;
}
else if (strcmp(temp, "TPE1") == 0 && default_author == true)
{
audiofile.seekg(cursor);
audiofile.readsome(temp, 1);
cursor += 1;
frame_length--;
//Debug
//printf("temp[0] = %X\n", temp[0]);
//If UTF-16
if (temp[0] == 0x01 || temp[0] == 0x02)
{
while (frame_length > 0)
{
//If less than 1024 bytes left read difference
if (frame_length < 1024)
{
audiofile.seekg(cursor);
audiofile.readsome(temp, frame_length);
cursor += frame_length;
remove_nulls(temp, frame_length);
frame_length=0;
}
else
{
audiofile.seekg(cursor);
audiofile.readsome(temp, 1024);
cursor += 1024;
remove_nulls(temp, 1024);
frame_length -= 1024;
}
author += temp;
temp[0]=0;
}
}
//If ISO or UTF-8 or other
else //if (temp[0] == 0x00 || temp[0] == 0x03)
{
while (frame_length > 0)
{
//If less than 1024 bytes left read difference
if (frame_length < 1024)
{
audiofile.seekg(cursor);
audiofile.readsome(temp, frame_length);
cursor += frame_length;
temp[frame_length]=0;
frame_length=0;
}
else
{
audiofile.seekg(cursor);
audiofile.readsome(temp, 1024);
cursor += 1024;
frame_length -= 1024;
}
author += temp;
//Debug
//printf("temp = %s\nauthor = %s\n", temp, author.c_str());
temp[0]=0;
}
}
default_author = false;
}
else
{
cursor += frame_length;
frame_length=0;
}
}
//Check for blank values
if (default_author == false && author == "")
default_author == true;
printf("author = %s\n", author.c_str());
if (default_title == false && title == "")
default_title == true;
printf("title = %s\n", title.c_str());
}
else if (strcmp(temp+4, "TAG") == 0)
{
author = "";
title = "";
//Parse file info
audiofile.seekg(124, ios_base::end);
audiofile.readsome(temp, 30);
temp[30]=0;
title = temp;
audiofile.seekg(94, ios_base::end);
audiofile.readsome(temp, 30);
temp[30]=0;
author = temp;
//Check for empty strings
if (title != "")
default_title = false;
if (author != "")
default_author = false;
}
//Reset shared variables
temp[0] = 0;
}
//Close audiofile
audiofile.close();
//Add entry to channel
xmlfile << " <item>\n";
// cout << " <item>\n";
//Check title strings for special characters
if (default_title)
replace_special(linktemp, audio.substr(0, length-4));
else
replace_special(linktemp, title);
//Add title
xmlfile << " <title>" << linktemp << "</title>\n";
// cout << " <title>" << linktemp << "</title>\n";
//Check file strings for special characters
replace_special(linktemp, web_directory);
link = linktemp;
link += '/';
replace_special(linktemp, audio);
link += linktemp;
//Add link
xmlfile << " <link>" << link << "</link>\n";
// cout << " <link>" << link << "</link>\n";
//Add author if ID3 tag exists
if (!default_author)
{
xmlfile << " <author>" << author << "</author>\n";
// cout << " <author>" << author << "</author>\n";
}
//Add Date
xmlfile << " <pubDate>" << date << "</pubDate>\n";
// cout << " <pubDate>" << date << "</pubDate>\n";
//Check file strings for spaces
encode_url(linktemp, web_directory);
link = linktemp;
link += '/';
encode_url(linktemp, audio);
link += linktemp;
//Add file
xmlfile << " <enclosure url=\"" << link << "\" type=\"";
// cout << " <enclosure url=\"" << link << "\" type=\"";
//Add type
if (extension == ".mp3")
{
xmlfile << "audio/mp3";
// cout << "audio/mp3";
}
else if (extension == ".aac" || extension == ".mp4")
{
xmlfile << "audio/mp4";
// cout << "audio/mp4";
}
//Finish item
xmlfile << "\"/>\n";
// cout << "\"/>\n";
//Close entry
xmlfile << " </item>\n";
// cout << " </item>\n";
}
void close_xml_file(fstream& xmlfile)
{
//Setup XML footer
xmlfile << " </channel>\n";
//Add rss close tag if none exists
xmlfile.peek();
if (xmlfile.eof())
{
//Clear eof bit
xmlfile.clear();
xmlfile << "</rss>";
}
//close xml file
xmlfile.close();
}
//Set Date so it will remain constant throughout process
void set_date(string UTC_offset, string& date)
{
char temp[1024];
char * weekday[] = {"Sun", "Mon", "Tue", "Wed", "Thu", "Fri", "Sat"};
char * month[] = {"Jan", "Feb", "Mar", "Apr", "May", "Jun", "Jul", "Aug", "Sep", "Oct", "Nov", "Dec"};
tm *t_date;
time_t rawtime;
//Format Date
//Get Timezone offset
time(&rawtime);
t_date = localtime(&rawtime);
//Day of week
date = weekday[t_date->tm_wday];
date += ", ";
//Day of Month
sprintf(temp, "%d", t_date->tm_mday);
date += temp;
date += " ";
//Month
date += month[t_date->tm_mon];
date += " ";
//Year
sprintf(temp, "%04d", t_date->tm_year + 1900);
date += temp;
date += " ";
//Hour
sprintf(temp, "%02d", t_date->tm_hour);
date += temp;
date += ":";
//Minute
sprintf(temp, "%02d", t_date->tm_min);
date += temp;
date += ":";
//Second
sprintf(temp, "%02d", t_date->tm_sec);
date += temp;
date += " ";
//Timezone offset
date += UTC_offset;
}
int main(int argc, char* argv[])
{
fstream xmlfile;
string xmlfilename, web_directory, local_directory, image="", audiolist, title, link="", description="", copyright="", UTC_offset="+0000", special, date;
int error=0, i=1;
//Debug
//printf("line 285\n");
//If not enough parameters, prompt for values
if (strcmp(argv[i], "-U") == 0 || strcmp(argv[i], "-u") == 0)
{
system("cls");
cout << "Output File Name (XML) ==>\n";
getline (cin, xmlfilename);
cout << "Web Directory (where files are stored online; no ending \"/\") ==>\n";
getline (cin, web_directory);
cout << "Local Directory (where files are stored locally; no ending \"/\") ==>\n";
getline (cin, local_directory);
cout << "Channel Title ==>\n";
getline (cin, title);
cout << "Time Zone Offset ([+-]hhmm format [i.e., -0600]) ==>\n";
getline (cin, UTC_offset);
cout << "Channel Hyper Link ==>\n";
getline (cin, link);
cout << "Channel Description ==>\n";
getline (cin, description);
cout << "Channel Copyright Information ==>\n";
getline (cin, copyright);
cout << "Channel Image File (displayed in channel list on PSP) ==>\n";
getline (cin, image);
}
else if (argv[i][0] != '-' & argc > 1)
{
if (argc < 5)
{
cout << "Gimme a break here. I need input.\n\n";
cout << "Unix/Linux:\n";
cout << "Command prompt>PSP_RSS_feed [-U] <xml output file> <web file directory>\n";
cout << "\t<local file directory> <channel title> <time zone offset>\n";
cout << "\t[<channel link> [<channel description> [<channel copyright>\n";
cout << "\t[<channel image filename>]]]]\n\n";
cout << "DOS/Windows:\n";
cout << "Command prompt>PSP_RSS_feed [-U] @inputfile\n";
cout << "Where inputfile has one line containing:\n";
cout << "\t<xml output file> <web file directory> <local file directory>\n";
cout << "\t<channel title> <time zone offset>\n";
cout << "\t[<channel link> [<channel description> [<channel copyright>\n";
cout << "\t[<channel image filename>]]]]\n\n";
cout << "Output will set xml links to \n";
cout << "\t\"<web file directory>/each audio file in<local file directory>\"\n";
cout << "If specified, output will set image link to \n";
cout << "\t\"<web file directory>/<channel image filename>\"\n";
cout << "\tOtherwise the image link will be set to the first image found.\n";
cout << "The time zone offset is in [+-]hhmm format (i.e., -0600)\n";
cout << "\nFor a User Input Prompt, add -U as the only parameter.\n";
return 1;
}
else
{
//Scan command line for tags
xmlfilename = argv[i++];
web_directory = argv[i++];
local_directory = argv[i++];
title = argv[i++];
if (argc >= 5)
UTC_offset = argv[i++];
if (argc >= 6)
link = argv[i++];
if (argc >= 7)
description = argv[i++];
if (argc >= 8)
copyright = argv[i++];
//Check for image file
if (argc == 9)
image = argv[i];
}
}
else
{
while (i < argc)
{
if (strcmp(argv[i], "-L") == 0 || strcmp(argv[i], "-l") == 0)
{
i++;
local_directory = argv[i++];
}
else if (strcmp(argv[i], "-O") == 0 || strcmp(argv[i], "-o") == 0)
{
i++;
xmlfilename = argv[i++];
}
else if (strcmp(argv[i], "-W") == 0 || strcmp(argv[i], "-w") == 0)
{
i++;
web_directory = argv[i++];
}
else if (strcmp(argv[i], "-T") == 0 || strcmp(argv[i], "-t") == 0)
{
i++;
title = argv[i++];
}
else if (strcmp(argv[i], "-Z") == 0 || strcmp(argv[i], "-z") == 0)
{
i++;
UTC_offset = argv[i++];
}
else if (strcmp(argv[i], "-C") == 0 || strcmp(argv[i], "-c") == 0)
{
i++;
link = argv[i++];
}
else if (strcmp(argv[i], "-D") == 0 || strcmp(argv[i], "-d") == 0)
{
i++;
description = argv[i++];
}
else if (strcmp(argv[i], "-R") == 0 || strcmp(argv[i], "-r") == 0)
{
i++;
copyright = argv[i++];
}
else if (strcmp(argv[i], "-I") == 0 || strcmp(argv[i], "-i") == 0)
{
i++;
image = argv[i++];
}
else
{
cout << "Incorrect parameter " << argv[i] << ". Ignoring.\n";
}
}
}
//Check for required input
if (xmlfilename == "" || web_directory == "" || local_directory == "" || title == "")
{
cout << "Gimme a break here. I need input.\n\n";
cout << "Unix/Linux:\n";
cout << "Command prompt>PSP_RSS_feed [-U] -O <xml output file> -W <web file directory>\n";
cout << "\t-L <local file directory> -T <channel title>\n";
cout << "\t[-Z <time zone offset>] [-C <channel link>] [-D <channel description>]\n";
cout << "\t[-R <channel copyright>] [-I <channel image filename>]\n\n";
cout << "DOS/Windows:\n";
cout << "Command prompt>PSP_RSS_feed [-U] @inputfile\n";
cout << "Where inputfile has one line containing:\n";
cout << "\t-O <xml output file> -W <web file directory>\n";
cout << "\t-L <local file directory> -T <channel title>\n";
cout << "\t[-Z <time zone offset>] [-C <channel link>] [-D <channel description>]\n";
cout << "\t[-R <channel copyright>] [-I <channel image filename>]\n\n";
cout << "Output will set xml links to \n";
cout << "\t\"<web file directory>/each audio file in<local file directory>\"\n";
cout << "If specified, output will set image link to \n";
cout << "\t\"<web file directory>/<channel image filename>\"\n";
cout << "\tOtherwise the image link will be set to the first image found.\n";
cout << "The time zone offset is in [+-]hhmm format (i.e., -0600)\n";
cout << "\nFor a User Input Prompt, add -U as the only parameter.\n";
return 1;
}
//Check for image file
if (image == "")
get_image(local_directory, image);
//TODO: Add sanity checks to input
//Search directory for files
get_audiolist(local_directory, audiolist);
//Replace Special Characters
replace_special(special, web_directory);
web_directory = special;
replace_special(special, title);
title = special;
replace_special(special, link);
link = special;
replace_special(special, description);
description = special;
replace_special(special, copyright);
copyright = special;
replace_special(special, image);
image = special;
//Create xml file
error = create_xml_file(xmlfile, xmlfilename, web_directory, image, title, link, description, copyright);
if (error == 1)
{
return 1;
}
//Set Date
set_date(UTC_offset, date);
//Add values to xml file
while(audiolist.length() > 6)
add_audiofile(xmlfile, audiolist, local_directory, web_directory, date);
//close xml file
close_xml_file(xmlfile);
return 0;
}
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