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/*
* pdfportfolio -- manipulate embedded files in a PDF
*/
#include "mupdf/pdf.h"
static pdf_document *doc = NULL;
static fz_context *ctx = NULL;
static void usage(void)
{
fprintf(stderr, "usage: mutool portfolio [options] infile.pdf [actions]\n");
fprintf(stderr, "\tOptions are:\n");
fprintf(stderr, "\t-p -\tpassword\n");
fprintf(stderr, "Actions are:\n");
fprintf(stderr, "\tl\tlist embedded files\n");
fprintf(stderr, "\tx N <filename>\n\t\textract Nth embedded file as <filename>\n");
fprintf(stderr, "\te outfile.pdf <filename> <embed>\n\t\tembed <filename> as <embed>, saving the result as outfile.pdf\n");
fprintf(stderr, "\nFor safety, keep all filenames as 7 bit clean for now.\n");
exit(1);
}
static void
safe_print_pdf_string(fz_context *ctx, unsigned char *str, int len)
{
int c;
if (len > 1 && str[0] == 0xFE && str[1] == 0xFF)
{
str += 2;
len -= 2;
while (len)
{
c = (*str++<<8);
c += *str++;
if (c >= 32 && c != 127 && c < 256)
fprintf(stderr, "%c", c);
else
fprintf(stderr, "<%04x>", c);
len -= 2;
};
}
else
{
while (len)
{
c = *str++;
if (c >= 32 && c != 127 && c < 256)
fprintf(stderr, "%c", c);
else
fprintf(stderr, "<%02x>", c);
len--;
};
}
}
static void
safe_print_pdf_obj(fz_context *ctx, pdf_obj *obj, const char *dflt)
{
if (obj == NULL)
fprintf(stderr, "%s", dflt);
else if (pdf_is_string(ctx, obj))
safe_print_pdf_string(ctx, (unsigned char *)pdf_to_str_buf(ctx, obj), pdf_to_str_len(ctx, obj));
else
pdf_print_obj(ctx, fz_stderr(ctx), obj, 1);
}
int pdfportfolio_main(int argc, char **argv)
{
char *infile;
char *password = "";
int c;
int exit_code = 0;
while ((c = fz_getopt(argc, argv, "p:")) != -1)
{
switch (c)
{
case 'p': password = fz_optarg; break;
default: usage(); break;
}
}
if (fz_optind == argc)
usage();
infile = argv[fz_optind++];
ctx = fz_new_context(NULL, NULL, FZ_STORE_UNLIMITED);
if (!ctx)
{
fprintf(stderr, "cannot initialise context\n");
exit(1);
}
doc = pdf_open_document(ctx, infile);
if (pdf_needs_password(ctx, doc))
if (!pdf_authenticate_password(ctx, doc, password))
fz_throw(ctx, FZ_ERROR_GENERIC, "cannot authenticate password: %s", infile);
if (fz_optind == argc)
usage();
fz_optarg = argv[fz_optind++];
if (*fz_optarg == 0 || (*fz_optarg != 'l' && *fz_optarg != 'x' && *fz_optarg != 'e') || fz_optarg[1] != 0)
usage();
fz_try(ctx)
{
switch (*fz_optarg)
{
case 'l':
{
/* List files */
int m = pdf_count_portfolio_schema(ctx, doc);
int n = pdf_count_portfolio_entries(ctx, doc);
int i, j;
for (i = 0; i < n; i++)
{
pdf_obj *name = pdf_portfolio_entry_name(ctx, doc, i);
fprintf(stderr, " %s%d: ", i < 10 ? " " : "", i);
safe_print_pdf_obj(ctx, name, "(Unnamed)");
fprintf(stderr, "\n");
for (j = 0; j < m; j++)
{
pdf_portfolio_schema info;
pdf_obj *obj;
char *type;
pdf_portfolio_schema_info(ctx, doc, j, &info);
obj = pdf_portfolio_entry_info(ctx, doc, i, j);
fprintf(stderr, " ");
safe_print_pdf_obj(ctx, info.name, "(Unnamed)");
switch(info.type)
{
case PDF_SCHEMA_TEXT:
type = "T";
break;
case PDF_SCHEMA_DATE:
type = "D";
break;
case PDF_SCHEMA_NUMBER:
type = "N";
break;
case PDF_SCHEMA_FILENAME:
type = "F";
break;
case PDF_SCHEMA_DESC:
type = "E";
break;
case PDF_SCHEMA_MODDATE:
type = "M";
break;
case PDF_SCHEMA_CREATIONDATE:
type = "C";
break;
case PDF_SCHEMA_SIZE:
type = "S";
break;
default:
type = "?";
break;
}
fprintf(stderr, ":%s:", type);
safe_print_pdf_obj(ctx, obj, "");
if (info.editable)
fprintf(stderr, " (Editable)");
if (info.visible)
fprintf(stderr, " (Visible)");
fprintf(stderr, "\n");
}
}
break;
}
case 'x':
{
int entry;
char *filename;
fz_buffer *buf;
unsigned char *data;
int len;
FILE *file;
if (fz_optind > argc-2)
usage();
entry = fz_atoi(argv[fz_optind++]);
filename = argv[fz_optind++];
buf = pdf_portfolio_entry(ctx, doc, entry);
len = fz_buffer_storage(ctx, buf, &data);
file = fopen(filename, "wb");
if (file == NULL)
{
fprintf(stderr, "Failed to open '%s' for writing\n", filename);
exit(1);
}
fwrite(data, 1, len, file);
fclose(file);
fz_drop_buffer(ctx, buf);
break;
}
case 'e':
{
char *outfile;
char *filename;
char *ename;
fz_buffer *buf;
if (fz_optind > argc-3)
usage();
outfile = argv[fz_optind++];
filename = argv[fz_optind++];
ename = argv[fz_optind++];
if (ename == NULL)
ename = filename;
buf = fz_read_file(ctx, filename);
pdf_add_portfolio_entry(ctx, doc,
ename, strlen(ename), /* name */
ename, strlen(ename), /* desc */
ename, strlen(ename), /* filename */
ename, strlen(ename), /* unifile */
buf);
fz_drop_buffer(ctx, buf);
pdf_save_document(ctx, doc, outfile, NULL);
break;
}
}
}
fz_catch(ctx)
{
/* Swallow any errors */
exit_code = 1;
}
pdf_drop_document(ctx, doc);
fz_flush_warnings(ctx);
fz_drop_context(ctx);
return exit_code;
}
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