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#include <stdio.h>
#include <assert.h>
#include "ppapi.h"
/*
static const char * get_file_name (const char *path)
{
const char *fn, *p;
for (fn = p = path; *p != '\0'; ++p)
if (*p == '\\' || *p == '/')
fn = p + 1;
return fn;
}
*/
static void box_info (ppdict *pagedict, FILE *fh)
{
const char *boxes[] = {"MediaBox", "CropBox", "BleedBox", "TrimBox", "ArtBox"};
pprect rect;
size_t i;
for (i = 0; i < sizeof(boxes) / sizeof(const char *); ++i)
if (ppdict_get_box(pagedict, boxes[i], &rect))
fprintf(fh, "%%%% %s [%f %f %f %f]\n", boxes[i], rect.lx, rect.ly, rect.rx, rect.ry);
}
static int usage (const char *argv0)
{
printf("pplib " pplib_version ", " pplib_author "\n");
printf("usage: %s file1.pdf file2.pdf ...\n", argv0);
printf(" %s file.pdf -u userpassword\n", argv0);
printf(" %s file.pdf -o ownerpassword\n", argv0);
printf(" %s file.pdf -p bothpasswords\n", argv0);
return 0;
}
static void log_callback (const char *message, void *alien)
{
fprintf((FILE *)alien, "\nooops: %s\n", message);
}
static const char * get_next_argument (const char *opt, int *a, int argc, const char **argv)
{
const char *next;
if ((*a) + 2 < argc)
{
next = argv[*a + 1];
if (strcmp(next, opt) == 0)
{
*a += 2;
return argv[*a];
}
}
return NULL;
}
int main (int argc, const char **argv)
{
const char *filepath, *password;
int a;
ppdoc *pdf;
ppcrypt_status cryptstatus;
ppref *pageref;
ppdict *pagedict;
int pageno;
char outname[1024];
FILE *fh;
ppstream *stream;
uint8_t *data;
size_t size;
ppcontext *context;
ppobj *obj;
ppname *op;
size_t operators;
if (argc < 2)
return usage(argv[0]);
ppstream_init_buffers();
pplog_callback(log_callback, stderr);
context = ppcontext_new();
for (a = 1; a < argc; ++a)
{
/* load */
filepath = argv[a];
printf("loading %s... ", filepath);
pdf = ppdoc_load(filepath);
if (pdf == NULL)
{
printf("failed\n");
continue;
}
printf("done\n");
/* decrypt */
if ((password = get_next_argument("-u", &a, argc, argv)) != NULL)
cryptstatus = ppdoc_crypt_pass(pdf, password, strlen(password), NULL, 0);
else if ((password = get_next_argument("-o", &a, argc, argv)) != NULL)
cryptstatus = ppdoc_crypt_pass(pdf, NULL, 0, password, strlen(password));
else if ((password = get_next_argument("-p", &a, argc, argv)) != NULL)
cryptstatus = ppdoc_crypt_pass(pdf, password, strlen(password), password, strlen(password));
else
cryptstatus = ppdoc_crypt_status(pdf);
switch (cryptstatus)
{
case PPCRYPT_NONE:
break;
case PPCRYPT_DONE:
printf("opened with password '%s'\n", password != NULL ? password : "");
break;
case PPCRYPT_PASS:
printf("invalid password\n");
ppdoc_free(pdf);
continue;
case PPCRYPT_FAIL:
printf("invalid encryption\n");
ppdoc_free(pdf);
continue;
}
/* process */
sprintf(outname, "%s.out", filepath);
fh = fopen(outname, "wb");
if (fh == NULL)
{
printf("can't open %s for writing\n", outname);
continue;
}
for (pageref = ppdoc_first_page(pdf), pageno = 1;
pageref != NULL;
pageref = ppdoc_next_page(pdf), ++pageno)
{
pagedict = pageref->object.dict;
/* decompress contents data */
fprintf(fh, "%%%% PAGE %d\n", pageno);
box_info(pagedict, fh);
for (stream = ppcontents_first(pagedict);
stream != NULL;
stream = ppcontents_next(pagedict, stream))
{
for (data = ppstream_first(stream, &size, 1);
data != NULL;
data = ppstream_next(stream, &size))
fwrite(data, size, 1, fh);
ppstream_done(stream);
}
/* now parse contents */
for (stream = ppcontents_first(pagedict);
stream != NULL;
stream = ppcontents_next(pagedict, stream))
{
operators = 0;
for (obj = ppcontents_first_op(context, stream, &size, &op);
obj != NULL;
obj = ppcontents_next_op(context, stream, &size, &op))
++operators;
fprintf(fh, "%%%% OPERATORS count %lu\n", (unsigned long)operators);
ppstream_done(stream);
//obj = ppcontents_parse(context, stream, &size);
//fprintf(fh, "%%%% items count %lu\n", (unsigned long)size);
fprintf(fh, "\n");
}
ppcontext_done(context);
}
fclose(fh);
ppdoc_free(pdf);
}
ppcontext_free(context);
ppstream_free_buffers();
return 0;
}
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