direct/python/yaffs_browser.py

   1 #!/usr/bin/python
   2 import Tkinter as tk
   3 from yaffsfs import *
   4 #import examples
   5 import ctypes
   6
   7 yaffs_StartUp()
   8 yaffs_mount("/yaffs2/")
   9 root_window =tk.Tk()
  10 root_window.title("YAFFS Browser")
  11 mount_list_text_variable=tk.StringVar()
  12
  13 mount_list_text_variable.set("/yaffs2/")
  14 current_directory_dict={}
  15 open_windows_list=[]
  16
  17 class editor():
  18     yaffs_handle=0
  19     file_editor_root =0
  20     save_button=[]
  21     file_contents=0
  22     file_path=0
  23     isLink=0
  24     def save_file(self):
  25         if  self.isLink==True:
  26             target_path=self.file_editor_text.get("1.0", tk.END) ##"1.0" is the index of the first line of text
  27             target_path=target_path[0:len(target_path)-1]
  28             new_path=self.file_path
  29             print "creating a symlink \n target:##", target_path, "##"
  30             target_file_exists=yaffs_access(target_path, 0) ##yaffs_access will return 0 on success and -1 on failure.
  31             if target_file_exists>=0:
  32                 ##file exists,create symlink
  33                 print "target file exist, creating symlink"
  34                 yaffs_unlink(new_path)
  35                 output=yaffs_symlink(target_path, new_path)
  36                 print "yaffs symlink output=", output
  37                 self.file_editor_root.destroy()
  38             else :
  39                 ##file does not exist
  40                 print "target file does not exist, cannot create symlink"
  41         else :
  42             #global current_directory_dict
  43             print "saving the file"
  44             print self.file_editor_text.get("1.0", tk.END) ##"1.0" is the index of the first line of text
  45             yaffs_lseek(self.yaffs_handle, 0, 0)
  46             data_to_be_written=self.file_editor_text.get("1.0", tk.END)
  47             print "data to be saved", data_to_be_written
  48             length_of_file=len(data_to_be_written)
  49             print "length of data to be written",length_of_file
  50             output=yaffs_write(self.yaffs_handle,data_to_be_written , length_of_file)
  51             print "output", output
  52             yaffs_ftruncate(self.yaffs_handle, length_of_file)
  53             yaffs_close(self.yaffs_handle)
  54             self.yaffs_handle = yaffs_open(self.file_path,66,0666)
  55         load_dir()
  56
  57     def __init__(self, isLink=0):
  58         global current_directory_dict
  59         x=name_list_box.curselection()
  60         self.id=int(x[0])
  61         self.file_editor_root =tk.Toplevel()
  62         self.save_button=tk.Button(self.file_editor_root, text="save", command=self.save_file)
  63         self.save_button.pack(fill=tk.BOTH)
  64
  65         self.file_path=current_directory_dict[self.id]["path"]
  66         print "file path", self.file_path
  67         self.file_editor_root.title(current_directory_dict[self.id]["path"])
  68         self.file_editor_text=tk.Text(self.file_editor_root)
  69         self.yaffs_handle = yaffs_open(current_directory_dict[self.id]["path"],66,0666)
  70         length_of_file=yaffs_lseek(self.yaffs_handle, 0, 2) ##seeks to the end of the file
  71         yaffs_lseek(self.yaffs_handle, 0, 0)## returns the handle to the front of th file
  72         print "length of file to be opened:", length_of_file
  73         if isLink==True and False ==True : ##this alows the symlink to be edited and is no longer used. to renable it delete "and False ==True"
  74             print "opening symlink"
  75             self.file_contents=ctypes.create_string_buffer(1000)
  76             yaffs_readlink(self.file_path,self.file_contents,1000)
  77             self.isLink=True
  78         else:
  79             print"opening file"
  80             self.file_contents=ctypes.create_string_buffer(length_of_file)
  81             yaffs_read(self.yaffs_handle,self.file_contents,length_of_file)
  82             print "file contents", self.file_contents.raw
  83         self.file_editor_text.insert(tk.END, self.file_contents.raw)
  84         self.file_editor_text.pack(fill=tk.BOTH)
  85         ##self.file_editor_text.bind("<Control-s>", self.save_file)
  86         ##doesn't work because it can't pass "self"
  87
  88 def load_dir():
  89     global current_directory_dict
  90     print "loading a new directory*******************************************************************"
  91     ##deleate current items in text box
  92     name_list_box.delete(0, tk.END)
  93     current_directory_dict=yaffs_ls(mount_list_text_variable.get())
  94     print "new directory", current_directory_dict
  95     ##copy directory into file box
  96     for x in range(0,len(current_directory_dict)):
  97         name_list_box.insert(x,(current_directory_dict[x]["inodes"]+"  "+ current_directory_dict[x]["type"]+"  "+ current_directory_dict[x]["size"]+"  "+ current_directory_dict[x]["path"]+"  "+current_directory_dict[x]["extra_data"]))
  98     name_list_box.grid(column=0, row=1)
  99     return current_directory_dict
 100
 101 def remount_yaffs():
 102     ##this isn't working. somethihg need to be changed in the config of the simulator to release the handle of the emfile
 103     print "remounting yaffs"
 104     print"unmounting yaffs:", yaffs_unmount("yaffs2/")
 105     print "mounting yaffs", yaffs_mount("/yaffs2/")
 106     load_dir()
 107
 108 def load_file(link=0):
 109     global open_windows_list
 110     open_windows_list.append(editor(link))
 111
 112 def load_command(self=0):
 113     global current_directory_dictls
 114
 115     print "you loaded a file/dir/link"
 116     x=name_list_box.curselection()
 117     x=int(x[0])
 118     print "cursor selection", x
 119     print "dict", current_directory_dict
 120
 121     print "file inode is:", current_directory_dict[x]["inodes"]
 122
 123
 124     print "file path is:", current_directory_dict[x]["path"]
 125     if current_directory_dict[x]["type"]=="dir":
 126         ##open dir
 127         print "open directory"
 128         mount_list_text_variable.set(current_directory_dict[x]["path"])
 129         print mount_list_text_variable.get()
 130         print "old directory dict", current_directory_dict
 131         #current_directory_dict=load_dir()
 132         load_dir()
 133
 134         print "new directory dict passed back"
 135
 136     elif current_directory_dict[x]["type"]=="file" :
 137         ##open file
 138         print "open file"
 139         load_file()
 140     elif current_directory_dict[x]["type"]=="link":
 141         print "loading a symlink"
 142         load_file(1)
 143     ##mount_list_text_variable.set(mount_list_text_variable.get()+str(list[0][0]))
 144
 145 def back_a_directory(self=0):
 146     x=len(mount_list_text_variable.get())
 147     string=mount_list_text_variable.get()
 148     slashes_id=[]
 149     #print "length of path", x
 150     #print "string been sorted:",  string
 151     for i in range(0, x):
 152         if string[i]=='/':
 153             slashes_id.append(i)
 154             #print "slash found at:", i
 155
 156     print slashes_id
 157     ##slashes_id.sort() not needed because the list is already in acending order
 158     ##print "sorted",slashes_id
 159
 160     string=string[0: slashes_id[len(slashes_id)-2]+1]
 161     print string
 162     mount_list_text_variable.set(string)
 163     load_dir()
 164
 165
 166
 167
 168
 169
 170 def yaffs_ls(dname):
 171     ls_dict=[]
 172
 173     if dname[-1] != "/": dname = dname + "/"
 174     dc = yaffs_opendir(dname)
 175     if dc != 0 :
 176         sep = yaffs_readdir(dc)
 177         while bool(sep):
 178
 179             se = sep.contents
 180             fullname = dname + se.d_name
 181             st = yaffs_stat_struct()
 182             result = yaffs_lstat(fullname,byref(st))
 183             perms = st.st_mode & 0777
 184             ftype = st.st_mode & yaffs_S_IFMT
 185             isFile = True if ftype == yaffs_S_IFREG else False
 186             isDir  = True if ftype == yaffs_S_IFDIR else False
 187             isSymlink= True if ftype == yaffs_S_IFLNK else False
 188
 189             if isFile :
 190                 ls_dict.append ({"type" :"file",  "inodes" :  str(se.d_ino),   "permissions" : str(hex(perms)),  "size": str(st.st_size), "path":  fullname,"extra_data":""})
 191                 print "file st.st_mode:", st.st_mode
 192
 193             elif isDir :
 194                 print "dir st.st_mode:", st.st_mode
 195
 196                 ls_dict.append({"type":"dir", "inodes" :str(se.d_ino), "permissions":str( hex(perms)),"size":"0",   "path": fullname+"/", "extra_data":""})
 197             elif isSymlink:
 198                 print "symlink st.st_mode:", st.st_mode
 199                 file_contents=ctypes.create_string_buffer(30)
 200                 yaffs_readlink(fullname,file_contents,30)
 201                 string=repr(file_contents.value)
 202                 print "len of str", len(string)
 203 #                string.lstrip()
 204
 205                 print "string", string, "###"
 206
 207                 ls_dict.append ({"type" :"link",  "inodes" :  str(se.d_ino),   "permissions" : str(hex(perms)),  "size": str(st.st_size), "path":  fullname, "extra_data":"> "+string})
 208
 209             else :
 210                 print "unknown st.st_mode:", st.st_mode
 211                 ls_dict.append({ "type":"Other", "inodes":str(se.d_ino),  "permissions":str( hex(perms)), "size":"0",   "path": fullname,"extra_data":""})
 212             sep = yaffs_readdir(dc)
 213         yaffs_closedir(dc)
 214         return ls_dict
 215     else:
 216         print "Could not open directory"
 217         return -1
 218
 219
 220 ##toolbar
 221 toolbar_frame=tk.Frame(root_window)
 222 button_open=tk.Button(toolbar_frame, command=load_command, text="load")
 223 button_open.grid(column=0, row=0)
 224 button_back=tk.Button(toolbar_frame, command=back_a_directory, text="back")
 225 button_back.grid(column=1, row=0)
 226 toolbar_frame.grid(row=0, column=0,  columnspan=3)
 227
 228 def delete_selected(selected_dir=0):
 229     if selected_dir==0:
 230         print"using current_directory_dict"
 231         global current_directory_dict
 232         x=name_list_box.curselection()
 233         x=int(x[0])
 234         print current_directory_dict[x]["type"]
 235         if current_directory_dict[x]["type"]=="file":
 236             path=current_directory_dict[x]["path"]
 237             path =path
 238             output=yaffs_unlink(path)
 239             print "unlinking output:", output
 240         elif current_directory_dict[x]["type"]=="dir":
 241             path=current_directory_dict[x]["path"]
 242             inside_dir=yaffs_ls(path)
 243             print "files and folder inside dir", inside_dir
 244             print "len of dir", len(inside_dir)
 245             if inside_dir!=[]: ##if the dir is not empty
 246                 ## remove stuff in dir
 247                 for i in range(0,len(inside_dir)):
 248                     print "calling self*****"
 249                     delete_selected(inside_dir[i])
 250
 251             path =path[0:len(path)-1] ##this is to remove the "/" off the end of the of the file
 252             print "removing:", path
 253             output=yaffs_rmdir(path)
 254             print "rmdir output:", output
 255     else :
 256         print "using passed dir"
 257         print "dir passed", selected_dir
 258         current_directory_dict =selected_dir
 259
 260         print "after copying", current_directory_dict
 261         print current_directory_dict["type"]
 262         if current_directory_dict["type"]=="file":
 263             path=current_directory_dict["path"]
 264             path =path
 265             output=yaffs_unlink(path)
 266             print "unlinking output:", output
 267         elif current_directory_dict["type"]=="dir":
 268             path=current_directory_dict["path"]
 269             inside_dir=yaffs_ls(path)
 270             print "files and folder inside dir", inside_dir
 271             print "len of dir", len(inside_dir)
 272             if inside_dir!=[]: ##if the dir is not empty
 273                 ## remove stuff in dir
 274                 for i in range(0,len(inside_dir)):
 275                     print "calling self*****"
 276                     delete_selected(inside_dir[i])
 277
 278             path =path[0:len(path)-1] ##this is to remove the "/" off the end of the of the file
 279             print "removing:", path
 280             output=yaffs_rmdir(path)
 281             print "rmdir output:", output
 282
 283     load_dir()
 284
 285
 286
 287 class new_file():
 288     path_entry_box=0
 289     new_file_window=0
 290     def open_the_file(self):
 291         global mount_list_text_variable
 292         print "trying to create", mount_list_text_variable.get()+self.path_entry_box.get()
 293         yaffs_handle=yaffs_open(self.path_entry_box.get(),66,0666)
 294         yaffs_close(yaffs_handle)
 295         self.new_file_window.destroy()
 296         load_dir()
 297
 298     def cancel(self):
 299         ##del self
 300         self.new_file_window.destroy()
 301     def __init__(self):
 302         global mount_list_text_variable
 303         self.new_file_window =tk.Toplevel(takefocus=True)
 304         path_frame=tk.Frame(self.new_file_window)
 305         path_label=tk.Label(path_frame, text="file path")
 306         path_label.pack(side=tk.LEFT)
 307         text=tk.StringVar()
 308         text.set(mount_list_text_variable.get())
 309         print "############################",mount_list_text_variable.get()
 310         self.path_entry_box= tk.Entry(path_frame, textvariable=text)
 311         self.path_entry_box.pack(side=tk.RIGHT)
 312         path_frame.pack()
 313         button_frame=tk.Frame(self.new_file_window)
 314         create_button=tk.Button(button_frame, text="Create", command=self.open_the_file)
 315         create_button.pack(side=tk.LEFT)
 316         cancel_button=tk.Button(button_frame, text="Cancel", command=self.cancel)
 317         cancel_button.pack(side=tk.RIGHT)
 318         button_frame.pack()
 319
 320 class new_folder():
 321     path_entry_box=0
 322     new_folder_window=0
 323     def create_the_folder(self):
 324         global mount_list_text_variable
 325         print "trying to create", mount_list_text_variable.get()+self.path_entry_box.get()
 326         yaffs_mkdir(self.path_entry_box.get(),0666)
 327         self.new_folder_window.destroy()
 328
 329         load_dir()
 330
 331     def cancel(self):
 332         ##del self
 333         self.new_folder_window.destroy()
 334     def __init__(self):
 335         global mount_list_text_variable
 336         self.new_folder_window =tk.Toplevel(takefocus=True)
 337         path_frame=tk.Frame(self.new_folder_window)
 338         path_label=tk.Label(path_frame, text="directory path")
 339         path_label.pack(side=tk.LEFT)
 340         text=tk.StringVar()
 341         text.set(mount_list_text_variable.get())
 342         print "############################",mount_list_text_variable.get()
 343         self.path_entry_box= tk.Entry(path_frame, textvariable=text)
 344         self.path_entry_box.pack(side=tk.RIGHT)
 345         path_frame.pack()
 346         button_frame=tk.Frame(self.new_folder_window)
 347         create_button=tk.Button(button_frame, text="Create", command=self.create_the_folder)
 348         create_button.pack(side=tk.LEFT)
 349         cancel_button=tk.Button(button_frame, text="Cancel", command=self.cancel)
 350         cancel_button.pack(side=tk.RIGHT)
 351         button_frame.pack()
 352
 353
 354 class new_symlink():
 355     path_entry_box=0
 356     target_text=0
 357     new_text=0
 358     new_file_window=0
 359     def create_the_symlink(self):
 360         global mount_list_text_variable
 361         ##check the symlink's target is a file.
 362         target_path=self.target_text.get()
 363         new_path=self.new_text.get()
 364         print "creating a symlink \n target:", target_path
 365         target_file_exists=yaffs_access(target_path, 0) ##yaffs_access will return 0 on success and -1 on failure.
 366         if target_file_exists>=0:
 367             ##file exists,create symlink
 368             print "target file exist, creating symlink"
 369             yaffs_symlink(target_path, new_path)
 370             self.new_file_window.destroy()
 371         else :
 372             ##file does not exist
 373             print "target file does not exist, cannot create symlink"
 374         load_dir()
 375
 376     def cancel(self):
 377         ##del self
 378         self.new_file_window.destroy()
 379     def __init__(self):
 380         global mount_list_text_variable
 381         self.new_file_window =tk.Toplevel(takefocus=True)
 382         target_frame=tk.Frame(self.new_file_window)
 383         target_label=tk.Label(target_frame, text="target")
 384         target_label.pack(side=tk.LEFT)
 385         self.target_text=tk.StringVar()
 386         self.target_text.set(mount_list_text_variable.get())
 387         #print "############################",mount_list_text_variable.get()
 388         self.target_entry_box= tk.Entry(target_frame, textvariable=self.target_text)
 389         self.target_entry_box.pack(side=tk.RIGHT)
 390         target_frame.pack()
 391
 392         new_frame=tk.Frame(self.new_file_window)
 393         new_label=tk.Label(new_frame, text="file path")
 394         new_label.pack(side=tk.LEFT)
 395         self.new_text=tk.StringVar()
 396         self.new_text.set(mount_list_text_variable.get())
 397         #print "############################",mount_list_text_variable.get()
 398         self.new_entry_box= tk.Entry(new_frame, textvariable=self.new_text)
 399         self.new_entry_box.pack(side=tk.RIGHT)
 400         new_frame.pack()
 401
 402         button_frame=tk.Frame(self.new_file_window)
 403         create_button=tk.Button(button_frame, text="Create", command=self.create_the_symlink)
 404         create_button.pack(side=tk.LEFT)
 405         cancel_button=tk.Button(button_frame, text="Cancel", command=self.cancel)
 406         cancel_button.pack(side=tk.RIGHT)
 407         button_frame.pack()
 408
 409
 410
 411 class new_hardlink():
 412     path_entry_box=0
 413     target_text=0
 414     new_text=0
 415     new_file_window=0
 416     def create_the_hardlink(self):
 417         global mount_list_text_variable
 418         ##check the symlink's target is a file.
 419         target_path=self.target_text.get()
 420         new_path=self.new_text.get()
 421         print "creating a hardlink \n target:", target_path
 422         target_file_exists=yaffs_access(target_path, 0) ##yaffs_access will return 0 on success and -1 on failure.
 423         if target_file_exists>=0:
 424             ##file exists,create symlink
 425             print "target file exist, creating hardlink"
 426             yaffs_link(target_path, new_path)
 427             self.new_file_window.destroy()
 428         else :
 429             ##file does not exist
 430             print "target file does not exist, cannot create hardlink"
 431         load_dir()
 432
 433     def cancel(self):
 434         ##del self
 435         self.new_file_window.destroy()
 436     def __init__(self):
 437         global mount_list_text_variable
 438         self.new_file_window =tk.Toplevel(takefocus=True)
 439         target_frame=tk.Frame(self.new_file_window)
 440         target_label=tk.Label(target_frame, text="target")
 441         target_label.pack(side=tk.LEFT)
 442         self.target_text=tk.StringVar()
 443         self.target_text.set(mount_list_text_variable.get())
 444         #print "############################",mount_list_text_variable.get()
 445         self.target_entry_box= tk.Entry(target_frame, textvariable=self.target_text)
 446         self.target_entry_box.pack(side=tk.RIGHT)
 447         target_frame.pack()
 448
 449         new_frame=tk.Frame(self.new_file_window)
 450         new_label=tk.Label(new_frame, text="file path")
 451         new_label.pack(side=tk.LEFT)
 452         self.new_text=tk.StringVar()
 453         self.new_text.set(mount_list_text_variable.get())
 454         #print "############################",mount_list_text_variable.get()
 455         self.new_entry_box= tk.Entry(new_frame, textvariable=self.new_text)
 456         self.new_entry_box.pack(side=tk.RIGHT)
 457         new_frame.pack()
 458
 459         button_frame=tk.Frame(self.new_file_window)
 460         create_button=tk.Button(button_frame, text="Create", command=self.create_the_hardlink)
 461         create_button.pack(side=tk.LEFT)
 462         cancel_button=tk.Button(button_frame, text="Cancel", command=self.cancel)
 463         cancel_button.pack(side=tk.RIGHT)
 464         button_frame.pack()
 465
 466
 467 ##mount list entry box init
 468 mount_list_frame=tk.Frame(root_window)
 469 mount_list_label=tk.Label(mount_list_frame, text="mount list")
 470 mount_list_label.pack(side=tk.RIGHT)
 471
 472 mount_list_entry_box= tk.Entry(mount_list_frame,textvariable=mount_list_text_variable)
 473 mount_list_entry_box.pack(side=tk.RIGHT)
 474 mount_list_frame.grid(row=1, column=0, columnspan=2)
 475
 476
 477 list_frame=tk.Frame(root_window)
 478 name_list_box=tk.Listbox(list_frame,exportselection=0, height=30, width=80)
 479 load_dir()
 480 list_frame.grid(sticky=tk.W+tk.E+tk.N+tk.S)
 481
 482 name_list_box.bind("<Double-Button-1>", load_command)
 483
 484 browser_menu_bar=tk.Menu(root_window)
 485 browser_file_menu=tk.Menu(browser_menu_bar)
 486
 487 browser_file_menu.add_command(label="Reload", command=load_dir)
 488 browser_file_menu.add_command(label="Remount yaffs", command=remount_yaffs)
 489
 490 #browser_file_menu.add_command(label="Open")
 491 #browser_file_menu.add_command(label="Save")
 492 browser_menu_bar.add_cascade(label="File", menu=browser_file_menu)
 493 root_window.config(menu=browser_menu_bar)
 494
 495
 496 browser_edit_menu=tk.Menu(browser_menu_bar)
 497
 498 browser_edit_menu.add_command(label="New File", command=new_file)
 499 browser_edit_menu.add_command(label="New Folder", command=new_folder)
 500 browser_edit_menu.add_command(label="New Symlink", command=new_symlink)
 501 browser_edit_menu.add_command(label="New Hardlink", command=new_hardlink)
 502
 503
 504 browser_edit_menu.add_command(label="delete selected", command=delete_selected)
 505 browser_menu_bar.add_cascade(label="Edit", menu=browser_edit_menu)
 506
 507
 508
 509
 510
 511
 512 root_window.mainloop()
 513
 514 print"unmounting yaffs:", yaffs_unmount("yaffs2/")
 515
 516