void openxref(char *filename, char *password, int dieonbadpass)
{
fz_error error;
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"));
}
xref->root = fz_dictgets(xref->trailer, "Root");
if (xref->root)
fz_keepobj(xref->root);
xref->info = fz_dictgets(xref->trailer, "Info");
if (xref->info)
fz_keepobj(xref->info);
pagecount = pdf_getpagecount(xref);
}
void opensrc(char *filename, char *password, int loadpages)
{
fz_error *error;
closesrc();
srcname = filename;
error = pdf_newxref(&src);
if (error)
die(error);
error = pdf_loadxref(src, filename);
if (error)
{
fz_printerror(error);
fz_warn("trying to repair");
error = pdf_repairxref(src, filename);
if (error)
die(error);
}
error = pdf_decryptxref(src);
if (error)
die(error);
if (src->crypt)
{
int okay = pdf_setpassword(src->crypt, password);
if (!okay)
die(fz_throw("invalid password"));
}
if (loadpages)
{
error = pdf_loadpagetree(&srcpages, src);
if (error)
die(error);
}
}
Epdf_Document* epdf_document_new(const char* filename)
{
Epdf_Document* doc;
fz_error error;
doc = (Epdf_Document*)malloc(sizeof(Epdf_Document));
if(!doc)
return NULL;
doc->xref = NULL;
doc->outline = NULL;
doc->rast = NULL;
doc->pagecount = 0;
doc->zoom = 1.0;
doc->rotate = 0;
doc->locked = false;
error = fz_newrenderer(&doc->rast, pdf_devicergb, 0, 1024 * 512);
if(error)
return pdfdoc_error(doc);
fz_obj* obj;
// Open PDF and load xref table
doc->xref = pdf_newxref();
if(!doc->xref)
return pdfdoc_error(doc);
error = pdf_loadxref(doc->xref, (char*)filename);
if(error)
{
fz_catch(error, "trying to repair");
fprintf(stderr, "There was a problem with file \"%s\".\nIt may be corrupted or generated by faulty software.\nTrying to repair the file.\n", filename);
error = pdf_repairxref(doc->xref, (char*)filename);
if(error)
return pdfdoc_error(doc);
}
error = pdf_decryptxref(doc->xref);
if(error)
pdfdoc_error(doc);
// Handle encrypted PDF files
if(pdf_needspassword(doc->xref))
doc->locked = true;
/*
* Load meta information
* TODO: move this into mupdf library
*/
obj = fz_dictgets(doc->xref->trailer, (char*)"Root");
doc->xref->root = fz_resolveindirect(obj);
if(!doc->xref->root)
{
fz_throw("syntaxerror: missing Root object");
pdfdoc_error(doc);
}
fz_keepobj(doc->xref->root);
obj = fz_dictgets(doc->xref->trailer, "Info");
doc->xref->info = fz_resolveindirect(obj);
if(!doc->xref->info)
fprintf(stderr, "Could not load PDF meta information.\n");
if(doc->xref->info)
fz_keepobj(doc->xref->info);
doc->outline = pdf_loadoutline(doc->xref);
doc->filename = strdup(filename);
if(doc->xref->info)
{
obj = fz_dictgets(doc->xref->info, "Title");
if(obj)
doc->doctitle = pdf_toutf8(obj);
}
/*
* Start at first page
*/
doc->pagecount = pdf_getpagecount(doc->xref);
if(doc->zoom < 0.1)
doc->zoom = 0.1;
if(doc->zoom > 3.0)
doc->zoom = 3.0;
return doc;
}
void pdfmoz_open(pdfmoz_t *moz, char *filename)
{
SCROLLINFO si;
fz_error error;
fz_obj *obj;
fz_irect bbox;
int rot;
int i;
strcpy(moz->error, "");
error = fz_newrenderer(&moz->rast, pdf_devicergb, 0, 1024 * 512);
if (error)
pdfmoz_error(moz, error);
/*
* Open PDF and load xref table
*/
moz->filename = filename;
moz->xref = pdf_newxref();
error = pdf_loadxref(moz->xref, filename);
if (error)
{
error = pdf_repairxref(moz->xref, filename);
if (error)
pdfmoz_error(moz, error);
}
/*
* Handle encrypted PDF files
*/
error = pdf_decryptxref(moz->xref);
if (error)
pdfmoz_error(moz, error);
if (pdf_needspassword(moz->xref))
{
pdfmoz_warn(moz, "PDF file is encrypted and needs a password.");
}
moz->pagecount = pdf_getpagecount(moz->xref);
moz->pages = fz_malloc(sizeof(page_t) * moz->pagecount);
for (i = 0; i < moz->pagecount; i++)
{
fz_obj *pageobj;
pageobj = pdf_getpageobject(moz->xref, i);
moz->pages[i].obj = fz_keepobj(pageobj);
moz->pages[i].page = nil;
moz->pages[i].image = nil;
obj = fz_dictgets(moz->pages[i].obj, "CropBox");
if (!obj)
obj = fz_dictgets(moz->pages[i].obj, "MediaBox");
bbox = fz_roundrect(pdf_torect(obj));
moz->pages[i].w = bbox.x1 - bbox.x0;
moz->pages[i].h = bbox.y1 - bbox.y0;
rot = fz_toint(fz_dictgets(moz->pages[i].obj, "Rotate"));
if ((rot / 90) % 2)
{
int t = moz->pages[i].w;
moz->pages[i].w = moz->pages[i].h;
moz->pages[i].h = t;
}
moz->pages[i].px = 1 + PAD;
}
/*
* Load meta information
* TODO: move this into mupdf library
*/
obj = fz_dictgets(moz->xref->trailer, "Root");
moz->xref->root = fz_resolveindirect(obj);
if (!moz->xref->root)
pdfmoz_error(moz, fz_throw("syntaxerror: missing Root object"));
if (moz->xref->root)
fz_keepobj(moz->xref->root);
obj = fz_dictgets(moz->xref->trailer, "Info");
moz->xref->info = fz_resolveindirect(obj);
if (moz->xref->info)
fz_keepobj(moz->xref->info);
moz->doctitle = filename;
if (strrchr(moz->doctitle, '\\'))
moz->doctitle = strrchr(moz->doctitle, '\\') + 1;
if (strrchr(moz->doctitle, '/'))
moz->doctitle = strrchr(moz->doctitle, '/') + 1;
if (moz->xref->info)
{
obj = fz_dictgets(moz->xref->info, "Title");
if (obj)
moz->doctitle = pdf_toutf8(obj);
}
/*
* Start at first page
*/
si.cbSize = sizeof(si);
si.fMask = SIF_POS | SIF_RANGE; // XXX | SIF_PAGE;
si.nPos = 0;
si.nMin = 0;
si.nMax = 1;
si.nPage = 1;
SetScrollInfo(moz->hwnd, SB_VERT, &si, TRUE);
moz->scrollpage = 0;
moz->scrollyofs = 0;
InvalidateRect(moz->hwnd, NULL, FALSE);
}
fz_error
pdf_openxrefwithstream(pdf_xref **xrefp, fz_stream *file, char *password)
{
pdf_xref *xref;
fz_error error;
fz_obj *encrypt;
fz_obj *id;
xref = fz_malloc(sizeof(pdf_xref));
memset(xref, 0, sizeof(pdf_xref));
pdf_logxref("openxref %p\n", xref);
xref->file = fz_keepstream(file);
error = pdf_loadxref(xref, xref->scratch, sizeof xref->scratch);
if (error)
{
fz_catch(error, "trying to repair");
if (xref->table)
{
fz_free(xref->table);
xref->table = NULL;
xref->len = 0;
xref->cap = 0;
}
error = pdf_repairxref(xref, xref->scratch, sizeof xref->scratch);
if (error)
{
pdf_freexref(xref);
return fz_rethrow(error, "cannot repair document");
}
}
encrypt = fz_dictgets(xref->trailer, "Encrypt");
id = fz_dictgets(xref->trailer, "ID");
if (fz_isdict(encrypt))
{
error = pdf_newcrypt(&xref->crypt, encrypt, id);
if (error)
{
pdf_freexref(xref);
return fz_rethrow(error, "cannot decrypt document");
}
}
if (pdf_needspassword(xref))
{
/* Only care if we have a password */
if (password)
{
int okay = pdf_authenticatepassword(xref, password);
if (!okay)
{
pdf_freexref(xref);
return fz_throw("invalid password");
}
}
}
*xrefp = xref;
return fz_okay;
}
void opensrc(char *filename, char *password, int loadpages)
{
fz_error *error;
fz_obj *obj;
closesrc();
srcname = filename;
error = pdf_newxref(&src);
if (error)
die(error);
error = pdf_loadxref(src, filename);
if (error)
{
fz_printerror(error);
fz_droperror(error);
fz_warn("trying to repair");
error = pdf_repairxref(src, filename);
if (error)
die(error);
}
error = pdf_decryptxref(src);
if (error)
die(error);
if (src->crypt)
{
int okay = pdf_setpassword(src->crypt, password);
if (!okay)
die(fz_throw("invalid password"));
}
if (loadpages)
{
error = pdf_loadpagetree(&srcpages, src);
if (error)
die(error);
}
/* TODO: move into mupdf lib, see pdfapp_open in pdfapp.c */
obj = fz_dictgets(src->trailer, "Root");
if (!obj)
die(error);
error = pdf_loadindirect(&src->root, src, obj);
if (error)
die(error);
obj = fz_dictgets(src->trailer, "Info");
if (obj)
{
error = pdf_loadindirect(&src->info, src, obj);
if (error)
die(error);
}
error = pdf_loadnametrees(src);
if (error)
die(error);
error = pdf_loadoutline(&srcoutline, src);
if (error)
die(error);
}
void pdfapp_open(pdfapp_t *app, char *filename)
{
fz_error *error;
fz_obj *obj;
char *password = "";
/*
* Open PDF and load xref table
*/
app->filename = filename;
error = pdf_newxref(&app->xref);
if (error)
pdfapp_error(app, error);
error = pdf_loadxref(app->xref, filename);
if (error)
{
if (!strncmp(error->msg, "ioerror", 7))
pdfapp_error(app, error);
pdfapp_warn(app,
"There was a problem with file \"%s\".\n"
"It may be corrupted, or generated by broken software.\n\n"
"%s\n\nTrying to continue anyway...",
filename, error->msg);
error = pdf_repairxref(app->xref, filename);
if (error)
pdfapp_error(app, error);
}
/*
* Handle encrypted PDF files
*/
error = pdf_decryptxref(app->xref);
if (error)
pdfapp_error(app, error);
if (app->xref->crypt)
{
error = pdf_setpassword(app->xref->crypt, password);
while (error)
{
fz_droperror(error);
password = winpassword(app, filename);
if (!password)
exit(1);
error = pdf_setpassword(app->xref->crypt, password);
if (error)
pdfapp_warn(app, "Invalid password.");
}
}
/*
* Load page tree
*/
error = pdf_loadpagetree(&app->pages, app->xref);
if (error)
pdfapp_error(app, error);
/*
* Load meta information
* TODO: move this into mupdf library
*/
obj = fz_dictgets(app->xref->trailer, "Root");
if (!obj)
pdfapp_error(app, fz_throw("syntaxerror: missing Root object"));
error = pdf_loadindirect(&app->xref->root, app->xref, obj);
if (error)
pdfapp_error(app, error);
obj = fz_dictgets(app->xref->trailer, "Info");
if (obj)
{
error = pdf_loadindirect(&app->xref->info, app->xref, obj);
if (error)
pdfapp_error(app, error);
}
error = pdf_loadnametrees(app->xref);
if (error)
pdfapp_error(app, error);
error = pdf_loadoutline(&app->outline, app->xref);
if (error)
pdfapp_error(app, error);
app->doctitle = filename;
if (strrchr(app->doctitle, '\\'))
app->doctitle = strrchr(app->doctitle, '\\') + 1;
if (strrchr(app->doctitle, '/'))
app->doctitle = strrchr(app->doctitle, '/') + 1;
if (app->xref->info)
{
obj = fz_dictgets(app->xref->info, "Title");
if (obj)
{
error = pdf_toutf8(&app->doctitle, obj);
if (error)
pdfapp_error(app, error);
}
}
/*
* Start at first page
*/
app->shrinkwrap = 1;
if (app->pageno < 1)
app->pageno = 1;
if (app->zoom <= 0.0)
app->zoom = 1.0;
app->rotate = 0;
app->panx = 0;
app->pany = 0;
pdfapp_showpage(app, 1, 1);
}
static PDFContext* pdfOpen(char *filename) {
PDFContext* ctx = new PDFContext();
memset(ctx, 0, sizeof(PDFContext));
fz_error *error;
fz_obj *obj;
error = fz_newrenderer(&ctx->rast, pdf_devicergb, 0, 1024 * 512);
if (error) {
printf("err0: %s\n", error->msg);
delete ctx;
return 0;
}
/*
* Open PDF and load xref table
*/
error = pdf_newxref(&ctx->xref);
if (error) {
printf("err1: %s\n", error->msg);
delete ctx;
return 0;
}
error = pdf_loadxref(ctx->xref, filename);
if (error) {
printf("err2: %s\n", error->msg);
if (!strncmp(error->msg, "ioerror", 7)) {
delete ctx;
return 0;
}
printf("There was a problem with file \"%s\".\n"
"It may be corrupted, or generated by broken software.\n\n"
"%s\n\nTrying to continue anyway...\n", filename, error->msg);
error = pdf_repairxref(ctx->xref, filename);
if (error) {
printf("err3: %s\n", error->msg);
delete ctx;
return 0;
}
}
/*
* Handle encrypted PDF files
*/
error = pdf_decryptxref(ctx->xref);
if (error) {
printf("err4: %s\n", error->msg);
delete ctx;
return 0;
}
/*if (ctx->xref->crypt) {
//printf("err5: %s\n", error->msg);
printf("err5\n", error->msg);
delete ctx;
return 0;
}*/
if (ctx->xref->crypt) {
error = pdf_setpassword(ctx->xref->crypt, "");
if (error) {
printf("err5: encrypted file (tried empty password): %s\n", error->msg);
delete ctx;
return 0;
/*
fz_droperror(error);
password = winpassword(app, filename);
if (!password)
exit(1);
error = pdf_setpassword(app->xref->crypt, password);
if (error)
pdfapp_warn(app, "Invalid password.");
*/
}
}
/*
* Load page tree
*/
error = pdf_loadpagetree(&ctx->pages, ctx->xref);
if (error) {
printf("err6: %s\n", error->msg);
delete ctx;
return 0;
}
/*
* Load meta information
* TODO: move this into mupdf library
*/
obj = fz_dictgets(ctx->xref->trailer, "Root");
if (!obj) {
printf("err7: %s\n", error->msg);
//pdfapp_error(app, fz_throw("syntaxerror: missing Root object"));
delete ctx;
return 0;
}
error = pdf_loadindirect(&ctx->xref->root, ctx->xref, obj);
if (error) {
printf("err8: %s\n", error->msg);
delete ctx;
return 0;
}
obj = fz_dictgets(ctx->xref->trailer, "Info");
if (obj) {
error = pdf_loadindirect(&ctx->xref->info, ctx->xref, obj);
if (error) {
printf("err10: %s\n", error->msg);
delete ctx;
return 0;
}
}
error = pdf_loadnametrees(ctx->xref);
// non-critical error, we can live without the outline
if (error) {
printf("warn11 - no outline: %s\n", error->msg);
} else {
error = pdf_loadoutline(&ctx->outline, ctx->xref);
if (error) {
printf("warn12 - no outline: %s\n", error->msg);
}
}
/*
char* ptitle = filename;
if (strrchr(app->doctitle, '\\'))
pt = strrchr(app->doctitle, '\\') + 1;
if (strrchr(app->doctitle, '/'))
app->doctitle = strrchr(app->doctitle, '/') + 1;
if (app->xref->info) {
obj = fz_dictgets(app->xref->info, "Title");
if (obj) {
error = pdf_toutf8(&app->doctitle, obj);
if (error) {
delete ctx;
return 0;
}
}
}
*/
/*
* Start at first page
*/
/*
app->shrinkwrap = 1;
if (app->pageno < 1)
app->pageno = 1;
if (app->zoom <= 0.0)
app->zoom = 1.0;
app->rotate = 0;
app->panx = 0;
app->pany = 0;
pdfapp_showpage(app, 1, 1);
*/
ctx->pageno = 1;
ctx->zoom = 1.0f;
ctx->zoomLevel = 4;
ctx->rotate = 0.0f;
ctx->rotateLevel = 0;
return ctx;
}
void pdfapp_open(pdfapp_t *app, char *filename)
{
#if 0
fz_error error;
fz_obj *obj;
char *password = "";
#else
fz_error error;
fz_stream *file;
char *password = "";
fz_obj *obj;
fz_obj *info;
int fd;
fd = open(filename, O_BINARY | O_RDONLY, 0666);
if (fd < 0)
fprintf(stderr, "error, file %s does not exist\n", filename);
#endif
/*
* Open PDF and load xref table
*/
app->filename = filename;
#if 0
app->xref = pdf_newxref();
error = pdf_loadxref(app->xref, filename);
if (error)
{
fz_catch(error, "trying to air");
error = pdf_repairxref(app->xref, filename);
if (error)
pdfapp_error(app, error);
}
error = pdf_decryptxref(app->xref);
if (error)
pdfapp_error(app, error);
#else
file = fz_open_fd(fd);
error = pdf_open_xref_with_stream(&app->xref, file, NULL);
if (error)
pdfapp_error(app, fz_rethrow(error, "cannot open document '%s'", filename));
fz_close(file);
#endif
/*
* Handle encrypted PDF files
*/
if (pdf_needs_password(app->xref))
{
int okay = pdf_authenticate_password(app->xref, password);
while (!okay)
{
//password = winpassword(app, filename);
if (!password)
exit(1);
okay = pdf_authenticate_password(app->xref, password);
if (!okay)
pdfapp_warn(app, "Invalid password.");
}
}
/*
* Load meta information
* TODO: move this into mupdf library
*/
#if 0
obj = fz_dictgets(app->xref->trailer, "Root");
app->xref->root = fz_resolveindirect(obj);
if (!app->xref->root)
pdfapp_error(app, fz_throw("syntaxerror: missing Root object"));
fz_keepobj(app->xref->root);
obj = fz_dictgets(app->xref->trailer, "Info");
app->xref->info = fz_resolveindirect(obj);
if (!app->xref->info)
pdfapp_warn(app, "Could not load PDF meta information.");
if (app->xref->info)
fz_keepobj(app->xref->info);
/*app->outline = pdf_loadoutline(app->xref);*/
app->doctitle = filename;
if (strrchr(app->doctitle, '\\'))
app->doctitle = strrchr(app->doctitle, '\\') + 1;
if (strrchr(app->doctitle, '/'))
app->doctitle = strrchr(app->doctitle, '/') + 1;
if (app->xref->info)
{
obj = fz_dictgets(app->xref->info, "Title");
if (obj)
{
app->doctitle = pdf_toutf8(obj);
}
}
#else
app->outline = pdf_load_outline(app->xref);
app->doctitle = filename;
if (strrchr(app->doctitle, '\\'))
app->doctitle = strrchr(app->doctitle, '\\') + 1;
if (strrchr(app->doctitle, '/'))
app->doctitle = strrchr(app->doctitle, '/') + 1;
info = fz_dict_gets(app->xref->trailer, "Info");
if (info)
{
obj = fz_dict_gets(info, "Title");
if (obj)
app->doctitle = pdf_to_utf8(obj);
}
#endif
/*
* Start at first page
*/
#if 0
app->pagecount = pdf_getpagecount(app->xref);
#else
error = pdf_load_page_tree(app->xref);
if (error)
pdfapp_error(app, fz_rethrow(error, "cannot load page tree"));
app->pagecount = pdf_count_pages(app->xref);
#endif
app->rotate = 0;
}