b9de28e910
- configures dovecot to use the spamtest sieve plugins
- configures sieve to read the score from X-Spamd-Result: headers
- before.sieve applies the ${spam_threshold} to the spamtest percentage
- freeposte.db stores a percentage for ${spam_threshold}
- migrate freeposte.db spam_threshold from X/15 to percentages
the filter investigates the overall ratio of the `rspamd` header
`X-Spamd-Result` that looks something like this:
X-Spamd-Result: default: True [12.36 / 15.00]
RBL_SPAMHAUS_XBL(4.00)[]
BAYES_SPAM(3.06)[92.67%]
RBL_SPAMHAUS_XBL_ANY(4.00)[]
ONCE_RECEIVED_STRICT(4.00)[]
HFILTER_HELO_BAREIP(3.00)[]
RBL_SORBS_DUL(2.00)[]
HFILTER_HOSTNAME_UNKNOWN(2.50)[]
RBL_SPAMHAUS_PBL(2.00)[]
RBL_SORBS_RECENT(1.50)[]
MIME_UNKNOWN(0.10)[application/x-rar-compressed]
RDNS_NONE(1.00)[]
RBL_SORBS(0.00)[]
R_SPF_NEUTRAL(0.00)[?all]
ONCE_RECEIVED(0.10)[]
RBL_SEM(1.00)[]
MIME_HTML_ONLY(0.20)[]
RBL_UCEPROTECT_LEVEL1(1.00)[]
MIME_GOOD(-0.10)[multipart/mixed]
the sieve `spamtest :percent :value` in this case would be
100*12.36/15 = 82.4%
38 lines
1.0 KiB
Python
38 lines
1.0 KiB
Python
"""spam_threshold in percent
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Revision ID: 27ae2f102682
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Revises: dc8c25cf5b98
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Create Date: 2016-09-30 08:06:15.025190
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"""
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# revision identifiers, used by Alembic.
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revision = '27ae2f102682'
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down_revision = 'dc8c25cf5b98'
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from alembic import op
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import sqlalchemy as sa
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from freeposte.admin.models import User
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from freeposte import db
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def upgrade():
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# spam_threshold is a X/15 based value, we're converting it to percent.
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for user in User.query.all():
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user.spam_threshold = int(100. * float(user.spam_threshold or 0.) / 15.)
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db.session.commit()
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# set default to 80%
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with op.batch_alter_table('user') as batch:
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batch.alter_column('spam_threshold', default=80.)
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def downgrade():
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# spam_threshold is a X/15 based value, we're converting it from percent.
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for user in User.query.all():
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user.spam_threshold = int(15. * float(user.spam_threshold or 0.) / 100.)
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db.session.commit()
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# set default to 10/15
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with op.batch_alter_table('user') as batch:
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batch.alter_column('spam_threshold', default=10.)
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