#ifndef PP_API_H #define PP_API_H #include #include #include #include "ppconf.h" #define pplib_version "v2.05 less toxic i hope" #define pplib_author "p.jackowski@gust.org.pl" /* types */ typedef int64_t ppint; typedef size_t ppuint; // machine word typedef char ppbyte; typedef double ppnum; typedef struct ppname ppname; typedef struct ppstring ppstring; struct ppname { ppbyte *data; size_t size; ppname *alterego; int flags; }; struct ppstring { ppbyte *data; size_t size; ppstring *alterego; int flags; }; typedef struct ppobj ppobj; typedef struct ppref ppref; typedef struct { ppobj *data; size_t size; } pparray; typedef struct { ppobj *data; ppname **keys; size_t size; } ppdict; typedef enum { PPSTREAM_BASE16 = 0, PPSTREAM_BASE85, PPSTREAM_RUNLENGTH, PPSTREAM_FLATE, PPSTREAM_LZW, PPSTREAM_CCITT, PPSTREAM_DCT, PPSTREAM_JBIG2, PPSTREAM_JPX, PPSTREAM_CRYPT } ppstreamtp; typedef struct { ppstreamtp *filters; ppdict **params; size_t count; } ppstream_filter; typedef struct { ppdict *dict; void *input, *I; size_t offset; size_t length; ppstream_filter filter; ppobj *filespec; ppstring *cryptkey; int flags; } ppstream; PPDEF extern const char * ppstream_filter_name[]; PPAPI int ppstream_filter_type (ppname *filtername, ppstreamtp *filtertype); PPAPI void ppstream_filter_info (ppstream *stream, ppstream_filter *info, int decode); #define PPSTREAM_FILTER (1<<0) #define PPSTREAM_IMAGE (1<<1) #define PPSTREAM_ENCRYPTED_AES (1<<2) #define PPSTREAM_ENCRYPTED_RC4 (1<<3) #define PPSTREAM_ENCRYPTED (PPSTREAM_ENCRYPTED_AES|PPSTREAM_ENCRYPTED_RC4) #define PPSTREAM_ENCRYPTED_OWN (1<<4) #define PPSTREAM_NOT_SUPPORTED (1<<6) #define ppstream_compressed(stream) ((stream)->flags & (PPSTREAM_FILTER|PPSTREAM_IMAGE)) #define ppstream_filtered(stream) ((stream)->flags & PPSTREAM_FILTER) #define ppstream_image(stream) ((stream)->flags & PPSTREAM_IMAGE) #define ppstream_encrypted(stream) ((stream)->flags & PPSTREAM_ENCRYPTED) typedef enum { PPNONE = 0, PPNULL, PPBOOL, PPINT, PPNUM, PPNAME, PPSTRING, PPARRAY, PPDICT, PPSTREAM, PPREF } ppobjtp; PPDEF extern const char * ppobj_kind[]; struct ppobj { union { ppint integer; ppnum number; ppname *name; ppstring *string; pparray *array; ppdict *dict; ppstream *stream; ppref *ref; void *any; }; ppobjtp type; }; typedef struct ppxref ppxref; struct ppref { ppobj object; ppuint number, version; size_t offset; size_t length; ppxref *xref; }; typedef struct ppdoc ppdoc; /* object */ #define ppobj_get_null(o) ((o)->type == PPNULL ? 1 : 0) #define ppobj_get_bool(o, v) ((o)->type == PPBOOL ? ((v = ((o)->integer != 0)), 1) : 0) #define ppobj_get_int(o, v) ((o)->type == PPINT ? ((v = (o)->integer), 1) : 0) #define ppobj_get_uint(o, v) ((o)->type == PPINT && (o)->integer >= 0 ? ((v = (ppuint)((o)->integer)), 1) : 0) #define ppobj_get_num(o, v) ((o)->type == PPNUM ? ((v = (o)->number), 1) : (((o)->type == PPINT ? ((v = (ppnum)((o)->integer)), 1) : 0))) #define ppobj_get_name(o) ((o)->type == PPNAME ? (o)->name : NULL) #define ppobj_get_string(o) ((o)->type == PPSTRING ? (o)->string : NULL) #define ppobj_get_array(o) ((o)->type == PPARRAY ? (o)->array : NULL) #define ppobj_get_dict(o) ((o)->type == PPDICT ? (o)->dict : NULL) #define ppobj_get_stream(o) ((o)->type == PPSTREAM ? (o)->stream : NULL) #define ppobj_get_ref(o) ((o)->type == PPREF ? (o)->ref : NULL) #define ppobj_rget_obj(o) ((o)->type == PPREF ? ppref_obj((o)->ref) : o) #define ppobj_rget_null(o) ((o)->type == PPNULL ? 1 : ((o)->type == PPREF ? ppobj_get_null(ppref_obj((o)->ref)) : 0)) #define ppobj_rget_bool(o, v) ((o)->type == PPBOOL ? ((v = ((o)->integer != 0)), 1) : ((o)->type == PPREF ? ppobj_get_bool(ppref_obj((o)->ref), v) : 0)) #define ppobj_rget_int(o, v) ((o)->type == PPINT ? ((v = (o)->integer), 1) : ((o)->type == PPREF ? ppobj_get_int(ppref_obj((o)->ref), v) : 0)) #define ppobj_rget_uint(o, v) ((o)->type == PPINT && (o)->integer >= 0 ? ((v = (ppuint)((o)->integer)), 1) : ((o)->type == PPREF ? ppobj_get_uint(ppref_obj((o)->ref), v) : 0)) #define ppobj_rget_num(o, v) ((o)->type == PPNUM ? ((v = (o)->number), 1) : (((o)->type == PPINT ? ((v = (ppnum)((o)->integer)), 1) : ((o)->type == PPREF ? ppobj_get_num(ppref_obj((o)->ref), v) : 0)))) #define ppobj_rget_name(o) ((o)->type == PPNAME ? (o)->name : ((o)->type == PPREF ? ppobj_get_name(ppref_obj((o)->ref)) : NULL)) #define ppobj_rget_string(o) ((o)->type == PPSTRING ? (o)->string : ((o)->type == PPREF ? ppobj_get_string(ppref_obj((o)->ref)) : NULL)) #define ppobj_rget_array(o) ((o)->type == PPARRAY ? (o)->array : ((o)->type == PPREF ? ppobj_get_array(ppref_obj((o)->ref)) : NULL)) #define ppobj_rget_dict(o) ((o)->type == PPDICT ? (o)->dict : ((o)->type == PPREF ? ppobj_get_dict(ppref_obj((o)->ref)) : NULL)) #define ppobj_rget_stream(o) ((o)->type == PPSTREAM ? (o)->stream : ((o)->type == PPREF ? ppobj_get_stream(ppref_obj((o)->ref)) : NULL)) #define ppobj_rget_ref(o) ((o)->type == PPREF ? (o)->ref : ((o)->type == PPREF ? ppobj_get_ref(ppref_obj((o)->ref)) : NULL)) #define ppobj_get_bool_value(o) ((o)->type == PPBOOL ? ((o)->integer != 0) : 0) #define ppobj_get_int_value(o) ((o)->type == PPINT ? (o)->integer : 0) #define ppobj_get_num_value(o) ((o)->type == PPNUM ? (o)->number : ((o)->type == PPINT ? (ppnum)((o)->integer) : 0.0)) /* name */ #define ppname_is(name, s) (memcmp((name)->data, s, sizeof("" s) - 1) == 0) #define ppname_eq(name, n) (memcmp((name)->data, s, (name)->size) == 0) #define ppname_size(name) ((name)->size) #define ppname_exec(name) ((name)->flags & PPNAME_EXEC) #define ppname_data(name) ((name)->data) #define PPNAME_ENCODED (1 << 0) #define PPNAME_DECODED (1 << 1) #define PPNAME_EXEC (1 << 1) PPAPI ppname * ppname_decoded (ppname *name); PPAPI ppname * ppname_encoded (ppname *name); PPAPI ppbyte * ppname_decoded_data (ppname *name); PPAPI ppbyte * ppname_encoded_data (ppname *name); /* string */ #define ppstring_size(string) ((string)->size) #define ppstring_data(string) ((string)->data) #define PPSTRING_ENCODED (1 << 0) #define PPSTRING_DECODED (1 << 1) //#define PPSTRING_EXEC (1 << 2) // postscript only #define PPSTRING_PLAIN 0 #define PPSTRING_BASE16 (1 << 3) #define PPSTRING_BASE85 (1 << 4) #define PPSTRING_UTF16BE (1 << 5) #define PPSTRING_UTF16LE (1 << 6) #define ppstring_type(string) ((string)->flags & (PPSTRING_BASE16|PPSTRING_BASE85)) #define ppstring_hex(string) ((string)->flags & PPSTRING_BASE16) #define ppstring_utf(string) ((string)->flags & (PPSTRING_UTF16BE|PPSTRING_UTF16LE)) PPAPI ppstring * ppstring_decoded (ppstring *string); PPAPI ppstring * ppstring_encoded (ppstring *string); PPAPI ppbyte * ppstring_decoded_data (ppstring *string); PPAPI ppbyte * ppstring_encoded_data (ppstring *string); /* array */ #define pparray_size(array) ((array)->size) #define pparray_at(array, index) ((array)->data + index) #define pparray_first(array, index, obj) ((index) = 0, (obj) = pparray_at(array, 0)) #define pparray_next(index, obj) (++(index), ++(obj)) #define pparray_get(array, index) (index < (array)->size ? pparray_at(array, index) : NULL) PPAPI ppobj * pparray_get_obj (pparray *array, size_t index); PPAPI int pparray_get_bool (pparray *array, size_t index, int *v); PPAPI int pparray_get_int (pparray *array, size_t index, ppint *v); PPAPI int pparray_get_uint (pparray *array, size_t index, ppuint *v); PPAPI int pparray_get_num (pparray *array, size_t index, ppnum *v); PPAPI ppname * pparray_get_name (pparray *array, size_t index); PPAPI ppstring * pparray_get_string (pparray *array, size_t index); PPAPI pparray * pparray_get_array (pparray *array, size_t index); PPAPI ppdict * pparray_get_dict (pparray *array, size_t index); //PPAPI ppstream * pparray_get_stream (pparray *array, size_t index); PPAPI ppref * pparray_get_ref (pparray *array, size_t index); PPAPI ppobj * pparray_rget_obj (pparray *array, size_t index); PPAPI int pparray_rget_bool (pparray *array, size_t index, int *v); PPAPI int pparray_rget_int (pparray *array, size_t index, ppint *v); PPAPI int pparray_rget_uint (pparray *array, size_t index, ppuint *v); PPAPI int pparray_rget_num (pparray *array, size_t index, ppnum *v); PPAPI ppname * pparray_rget_name (pparray *array, size_t index); PPAPI ppstring * pparray_rget_string (pparray *array, size_t index); PPAPI pparray * pparray_rget_array (pparray *array, size_t index); PPAPI ppdict * pparray_rget_dict (pparray *array, size_t index); PPAPI ppstream * pparray_rget_stream (pparray *array, size_t index); PPAPI ppref * pparray_rget_ref (pparray *array, size_t index); /* dict */ #define ppdict_size(dict) ((dict)->size) #define ppdict_at(dict, index) ((dict)->data + index) #define ppdict_key(dict, index) ((dict)->keys[index]) PPAPI ppobj * ppdict_get_obj (ppdict *dict, const char *name); PPAPI int ppdict_get_bool (ppdict *dict, const char *name, int *v); PPAPI int ppdict_get_int (ppdict *dict, const char *name, ppint *v); PPAPI int ppdict_get_uint (ppdict *dict, const char *name, ppuint *v); PPAPI int ppdict_get_num (ppdict *dict, const char *name, ppnum *v); PPAPI ppname * ppdict_get_name (ppdict *dict, const char *name); PPAPI ppstring * ppdict_get_string (ppdict *dict, const char *name); PPAPI pparray * ppdict_get_array (ppdict *dict, const char *name); PPAPI ppdict * ppdict_get_dict (ppdict *dict, const char *name); //PPAPI ppstream * ppdict_get_stream (ppdict *dict, const char *name); PPAPI ppref * ppdict_get_ref (ppdict *dict, const char *name); PPAPI ppobj * ppdict_rget_obj (ppdict *dict, const char *name); PPAPI int ppdict_rget_bool (ppdict *dict, const char *name, int *v); PPAPI int ppdict_rget_int (ppdict *dict, const char *name, ppint *v); PPAPI int ppdict_rget_uint (ppdict *dict, const char *name, ppuint *v); PPAPI int ppdict_rget_num (ppdict *dict, const char *name, ppnum *v); PPAPI ppname * ppdict_rget_name (ppdict *dict, const char *name); PPAPI ppstring * ppdict_rget_string (ppdict *dict, const char *name); PPAPI pparray * ppdict_rget_array (ppdict *dict, const char *name); PPAPI ppdict * ppdict_rget_dict (ppdict *dict, const char *name); PPAPI ppstream * ppdict_rget_stream (ppdict *dict, const char *name); PPAPI ppref * ppdict_rget_ref (ppdict *dict, const char *name); #define ppdict_first(dict, pkey, obj) (pkey = (dict)->keys, obj = (dict)->data) #define ppdict_next(pkey, obj) (++(pkey), ++(obj)) /* stream */ #define ppstream_dict(stream) ((stream)->dict) PPAPI uint8_t * ppstream_first (ppstream *stream, size_t *size, int decode); PPAPI uint8_t * ppstream_next (ppstream *stream, size_t *size); PPAPI uint8_t * ppstream_all (ppstream *stream, size_t *size, int decode); PPAPI void ppstream_done (ppstream *stream); PPAPI void ppstream_init_buffers (void); PPAPI void ppstream_free_buffers (void); /* ref */ #define ppref_obj(ref) (&(ref)->object) /* xref */ PPAPI ppxref * ppdoc_xref (ppdoc *pdf); PPAPI ppxref * ppxref_prev (ppxref *xref); PPAPI ppdict * ppxref_trailer (ppxref *xref); PPAPI ppdict * ppxref_catalog (ppxref *xref); PPAPI ppdict * ppxref_info (ppxref *xref); PPAPI ppref * ppxref_pages (ppxref *xref); PPAPI ppref * ppxref_find (ppxref *xref, ppuint refnumber); /* doc */ PPAPI ppdoc * ppdoc_load (const char *filename); PPAPI ppdoc * ppdoc_filehandle (FILE *file, int closefile); #define ppdoc_file(file) ppdoc_filehandle(file, 1) PPAPI ppdoc * ppdoc_mem (const void *data, size_t size); PPAPI void ppdoc_free (ppdoc *pdf); #define ppdoc_trailer(pdf) ppxref_trailer(ppdoc_xref(pdf)) #define ppdoc_catalog(pdf) ppxref_catalog(ppdoc_xref(pdf)) #define ppdoc_info(pdf) ppxref_info(ppdoc_xref(pdf)) #define ppdoc_pages(pdf) ppxref_pages(ppdoc_xref(pdf)) PPAPI ppuint ppdoc_page_count (ppdoc *pdf); PPAPI ppref * ppdoc_page (ppdoc *pdf, ppuint index); PPAPI ppref * ppdoc_first_page (ppdoc *pdf); PPAPI ppref * ppdoc_next_page (ppdoc *pdf); PPAPI ppstream * ppcontents_first (ppdict *dict); PPAPI ppstream * ppcontents_next (ppdict *dict, ppstream *stream); /* crypt */ typedef enum { PPCRYPT_NONE = 0, PPCRYPT_DONE = 1, PPCRYPT_FAIL = -1, PPCRYPT_PASS = -2 } ppcrypt_status; PPAPI ppcrypt_status ppdoc_crypt_status (ppdoc *pdf); PPAPI ppcrypt_status ppdoc_crypt_pass (ppdoc *pdf, const void *userpass, size_t userpasslength, const void *ownerpass, size_t ownerpasslength); /* permission flags, effect in Acrobat File -> Properties -> Security tab */ PPAPI ppint ppdoc_permissions (ppdoc *pdf); #define PPDOC_ALLOW_PRINT (1<<2) // printing #define PPDOC_ALLOW_MODIFY (1<<3) // filling form fields, signing, creating template pages #define PPDOC_ALLOW_COPY (1<<4) // copying, copying for accessibility #define PPDOC_ALLOW_ANNOTS (1<<5) // filling form fields, copying, signing #define PPDOC_ALLOW_EXTRACT (1<<9) // contents copying for accessibility #define PPDOC_ALLOW_ASSEMBLY (1<<10) // (no effect) #define PPDOC_ALLOW_PRINT_HIRES (1<<11) // (no effect) /* context */ typedef struct ppcontext ppcontext; PPAPI ppcontext * ppcontext_new (void); PPAPI void ppcontext_done (ppcontext *context); PPAPI void ppcontext_free (ppcontext *context); /* contents parser */ PPAPI ppobj * ppcontents_first_op (ppcontext *context, ppstream *stream, size_t *psize, ppname **pname); PPAPI ppobj * ppcontents_next_op (ppcontext *context, ppstream *stream, size_t *psize, ppname **pname); PPAPI ppobj * ppcontents_parse (ppcontext *context, ppstream *stream, size_t *psize); /* boxes and transforms */ typedef struct { ppnum lx, ly, rx, ry; } pprect; PPAPI pprect * pparray_to_rect (pparray *array, pprect *rect); PPAPI pprect * ppdict_get_rect (ppdict *dict, const char *name, pprect *rect); PPAPI pprect * ppdict_get_box (ppdict *dict, const char *name, pprect *rect); typedef struct { ppnum xx, xy, yx, yy, x, y; } ppmatrix; PPAPI ppmatrix * pparray_to_matrix (pparray *array, ppmatrix *matrix); PPAPI ppmatrix * ppdict_get_matrix (ppdict *dict, const char *name, ppmatrix *matrix); /* logger */ typedef void (*pplogger_callback) (const char *message, void *alien); PPAPI void pplog_callback (pplogger_callback logger, void *alien); PPAPI int pplog_prefix (const char *prefix); /* version */ PPAPI const char * ppdoc_version_string (ppdoc *pdf); PPAPI int ppdoc_version_number (ppdoc *pdf, int *minor); /* doc info */ PPAPI size_t ppdoc_file_size (ppdoc *pdf); PPAPI ppuint ppdoc_objects (ppdoc *pdf); PPAPI size_t ppdoc_memory (ppdoc *pdf, size_t *waste); #endif