Remove the "weight=10" line from fallback directory mirror entries

  o Minor features (fallback directory mirrors):

    - Remove the "weight=10" line from fallback directory mirror entries.

      Ticket 24681 will maintain the current fallback weights by changing

      Tor's default fallback weight to 10.

      Implements ticket 24679.

# This avoids delisting a relay due to transient network conditions

CONSENSUS_DOWNLOAD_RETRY = True

## Fallback Weights for Client Selection

# All fallback weights are equal, and set to the value below

# Authorities are weighted 1.0 by default

# Clients use these weights to select fallbacks and authorities at random

# If there are 100 fallbacks and 9 authorities:

#  - each fallback is chosen with probability 10.0/(10.0*100 + 1.0*9) ~= 0.99%

#  - each authority is chosen with probability 1.0/(10.0*100 + 1.0*9) ~= 0.09%

# A client choosing a bootstrap directory server will choose a fallback for

# 10.0/(10.0*100 + 1.0*9) * 100 = 99.1% of attempts, and an authority for

# 1.0/(10.0*100 + 1.0*9) * 9 = 0.9% of attempts.

# (This disregards the bootstrap schedules, where clients start by choosing

# from fallbacks & authoritites, then later choose from only authorities.)

FALLBACK_OUTPUT_WEIGHT = 10.0

## Parsing Functions

def parse_ts(t):

  def fallbackdir_info(self, dl_speed_ok):

    # "address:dirport orport=port id=fingerprint"

    # "[ipv6=addr:orport]"

    # "weight=FALLBACK_OUTPUT_WEIGHT",

    # ,

    #

    # Do we want a C string, or a commented-out string?

    c_string = dl_speed_ok

    if self.has_ipv6():

      s += '" ipv6=%s:%d"'%(cleanse_c_string(self.ipv6addr), self.ipv6orport)

      s += '\n'

    s += '" weight=%d",'%(FALLBACK_OUTPUT_WEIGHT)

    s += ','

    if comment_string:

      s += '\n'

      s += '*/'