102 lines
3.1 KiB
Python
102 lines
3.1 KiB
Python
from logging import getLogger
|
|
from random import SystemRandom
|
|
|
|
from django.apps import apps
|
|
from django.db import models
|
|
from django.urls import reverse
|
|
from django.utils.translation import gettext_lazy as _
|
|
|
|
from dpaste import highlight
|
|
|
|
config = apps.get_app_config("dpaste")
|
|
logger = getLogger(__file__)
|
|
R = SystemRandom()
|
|
|
|
|
|
def generate_secret_id(length):
|
|
if length > config.SLUG_LENGTH:
|
|
logger.warning(
|
|
"Slug creation triggered a duplicate, "
|
|
"consider increasing the SLUG_LENGTH."
|
|
)
|
|
|
|
secret_id = "".join(
|
|
[R.choice(config.SLUG_CHOICES) for i in range(length or config.SLUG_LENGTH)]
|
|
)
|
|
|
|
# Check if this slug already exists, if not, return this new slug
|
|
try:
|
|
Snippet.objects.get(secret_id=secret_id)
|
|
except Snippet.DoesNotExist:
|
|
return secret_id
|
|
|
|
# Otherwise create a new slug which is +1 character longer
|
|
# than the previous one.
|
|
return generate_secret_id(length=length + 1)
|
|
|
|
|
|
class Snippet(models.Model):
|
|
EXPIRE_TIME = 1
|
|
EXPIRE_KEEP = 2
|
|
EXPIRE_ONETIME = 3
|
|
EXPIRE_CHOICES = (
|
|
(EXPIRE_TIME, _("Expire by timestamp")),
|
|
(EXPIRE_KEEP, _("Keep Forever")),
|
|
(EXPIRE_ONETIME, _("One-Time snippet")),
|
|
)
|
|
|
|
secret_id = models.CharField(
|
|
_("Secret ID"), max_length=255, blank=True, null=True, unique=True
|
|
)
|
|
content = models.TextField(_("Content"))
|
|
lexer = models.CharField(_("Lexer"), max_length=30, default=highlight.LEXER_DEFAULT)
|
|
published = models.DateTimeField(_("Published"), auto_now_add=True)
|
|
expire_type = models.PositiveSmallIntegerField(
|
|
_("Expire Type"), choices=EXPIRE_CHOICES, default=EXPIRE_CHOICES[0][0]
|
|
)
|
|
expires = models.DateTimeField(_("Expires"), blank=True, null=True)
|
|
view_count = models.PositiveIntegerField(_("View count"), default=0)
|
|
rtl = models.BooleanField(_("Right-to-left"), default=False)
|
|
parent = models.ForeignKey(
|
|
"self",
|
|
null=True,
|
|
blank=True,
|
|
verbose_name=_("Parent Snippet"),
|
|
related_name="children",
|
|
on_delete=models.CASCADE,
|
|
)
|
|
|
|
class Meta:
|
|
ordering = ("-published",)
|
|
db_table = "dpaste_snippet"
|
|
|
|
def __str__(self):
|
|
return self.secret_id
|
|
|
|
def save(self, *args, **kwargs):
|
|
if not self.secret_id:
|
|
self.secret_id = generate_secret_id(length=config.SLUG_LENGTH)
|
|
super().save(*args, **kwargs)
|
|
|
|
def get_absolute_url(self):
|
|
return reverse("snippet_details", kwargs={"snippet_id": self.secret_id})
|
|
|
|
def highlight(self):
|
|
HighlighterClass = highlight.get_highlighter_class(self.lexer)
|
|
return HighlighterClass().render(
|
|
code_string=self.content,
|
|
lexer_name=self.lexer,
|
|
direction="rtl" if self.rtl else "ltr",
|
|
)
|
|
|
|
@property
|
|
def lexer_name(self):
|
|
"""Display name for this lexer."""
|
|
return highlight.Highlighter.get_lexer_display_name(self.lexer)
|
|
|
|
@property
|
|
def remaining_views(self):
|
|
if self.expire_type == self.EXPIRE_ONETIME:
|
|
remaining = config.ONETIME_LIMIT - self.view_count
|
|
return remaining > 0 and remaining or 0
|