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#include "pdftool.h"
char *basename = nil;
pdf_xref *xref = nil;
int pagecount = 0;
static void (*cleanup)(void) = nil;
void closexref(void);
void die(fz_error error)
{
fz_catch(error, "aborting");
if (cleanup)
cleanup();
closexref();
exit(1);
}
void setcleanup(void (*func)(void))
{
cleanup = func;
}
void openxref(char *filename, char *password, int dieonbadpass)
{
fz_error error;
fz_obj *obj;
int okay;
basename = strrchr(filename, '/');
if (!basename)
basename = filename;
else
basename++;
xref = pdf_newxref();
error = pdf_loadxref(xref, filename);
if (error)
{
fz_catch(error, "trying to repair");
error = pdf_repairxref(xref, filename);
if (error)
die(error);
}
error = pdf_decryptxref(xref);
if (error)
die(error);
if (pdf_needspassword(xref))
{
okay = pdf_authenticatepassword(xref, password);
if (!okay && !dieonbadpass)
fz_warn("invalid password, attempting to continue.");
else if (!okay && dieonbadpass)
die(fz_throw("invalid password"));
}
obj = fz_dictgets(xref->trailer, "Root");
xref->root = fz_resolveindirect(obj);
if (xref->root)
fz_keepobj(xref->root);
obj = fz_dictgets(xref->trailer, "Info");
xref->info = fz_resolveindirect(obj);
if (xref->info)
fz_keepobj(xref->info);
pagecount = pdf_getpagecount(xref);
}
void closexref(void)
{
if (cleanup)
cleanup();
if (xref)
{
pdf_closexref(xref);
xref = nil;
}
basename = nil;
}
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