Mercurial > hg > bitsyblog
annotate bitsyblog/blog.py @ 105:67e01fc5e360
STUB: bitsyblog/bitsyblog.py bitsyblog/factory.py bitsyblog/user.py
author | Jeff Hammel <k0scist@gmail.com> |
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date | Sun, 23 Feb 2014 17:45:22 -0800 |
parents | e5a23f5ea14e |
children | c7495fb71045 |
rev | line source |
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0
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1 """blog interfaces to data for bitsy""" |
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2 |
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3 import datetime |
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4 import os |
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5 import utils |
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6 |
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7 from cStringIO import StringIO |
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8 from glob import glob |
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1st steps to have blog post entry handler plugins
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9 from pkg_resources import iter_entry_points |
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10 |
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11 class BlogEntry(object): |
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12 """interface class for a blog entry""" |
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13 def __init__(self, date, body, privacy, user, modified=None): |
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14 self.date = date |
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15 self.body = body |
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16 self.privacy = privacy |
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17 self._modified = modified |
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18 if user is not None: |
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19 self.user = user |
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20 |
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21 def title(self, characters=80): |
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22 |
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23 if '\n' in self.body: |
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24 lines = [i.strip() for i in self.body[:characters].split('\n')] |
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25 if len(lines[0]) > characters: |
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26 retval = self.snippet(charachters) |
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27 elif len(lines) > 1 and not lines[1]: |
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28 retval = lines[0] |
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29 else: |
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30 retval = self.snippet(characters) |
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31 else: |
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32 retval = self.snippet(characters) |
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33 return retval.decode('utf-8') |
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34 |
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35 def snippet(self, characters=80): |
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36 if characters: |
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37 if len(self.body) > characters: |
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38 |
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39 text = ' '.join(self.body[:characters].split()[:-1]) |
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40 if '\n' in text: |
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41 lines = [ i.strip() for i in text.split('\n') ] |
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42 if '' in lines: |
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43 return '\n'.join(lines[:lines.index('')]) |
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44 |
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45 if text: |
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46 return '%s ...' % text |
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47 else: |
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48 return self.body |
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49 return '' |
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50 |
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51 def datestamp(self): |
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52 return utils.datestamp(self.date) |
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53 |
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54 def modified(self): |
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55 """returns the last modification date""" |
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56 return self._modified or self.datestamp() |
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57 |
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58 |
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59 class Blog(object): |
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60 """abstract class for a users' blog""" |
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61 |
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62 def __call__(self, user, permissions=('public',), number=None): |
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63 return self.blog(user, permissions, number=number) |
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64 |
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65 def latest(self, users, number): |
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66 """return the lastest entries""" |
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67 blog = [] |
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68 for user in users: |
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69 blog.extend(self.blog(user, ('public',), number)) |
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70 blog.sort(key=lambda entry: entry.date, reverse=True) |
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71 return blog[:number] |
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72 |
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73 # interfaces for subclasses |
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74 |
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75 def blog(self, user, permissions, number=None): |
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76 """ |
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77 return the user's blog sorted in reverse date order |
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78 if number is None, the entire blog is returned |
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79 """ |
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80 |
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81 def entry(self, user, datestamp, permissions): |
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82 """ |
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83 return a single blog entry with the given datestamp: |
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84 'YYYYMMDDHHMMSS' |
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85 """ |
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86 |
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87 def entries(self, user, permissions, year=None, month=None, day=None): |
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88 """return entries by date""" |
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89 |
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90 |
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91 def post(self, user, date, text, privacy): |
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92 """post a new blog entry""" |
71 | 93 return BlogEntry(date, text, privacy, user) |
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94 |
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95 def delete(self, user, datestamp): |
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96 """remove a blog entry""" |
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97 |
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98 class FileBlog(Blog): |
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99 """a blog that lives on the filesystem""" |
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100 |
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101 def __init__(self, directory): |
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102 self.directory = directory |
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103 |
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104 def location(self, user, permission, *path): |
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105 """returns which directory files are in based on permission""" |
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106 return os.path.join(self.directory, user, 'entries', permission, *path) |
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107 |
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108 def body(self, user, datestamp, permission): |
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109 return file(self.location(user, permission, datestamp)).read() |
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110 |
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111 def get_entry(self, user, datestamp, permission): |
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112 modified = datetime.datetime.fromtimestamp(os.path.getmtime(self.location(user, permission, datestamp))) |
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113 return BlogEntry(utils.date(datestamp), |
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114 self.body(user, datestamp, permission), |
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115 permission, user, modified=modified) |
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116 |
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117 ### interfaces from Blog |
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118 |
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119 def blog(self, user, permissions, number=None): |
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120 entries = [] |
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121 for permission in permissions: |
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122 entries.extend([(entry, permission) |
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123 for entry in os.listdir(self.location(user, permission)) ]) |
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124 entries.sort(key=lambda x: x[0], reverse=True) |
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125 |
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126 if number is not None: |
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127 entries = entries[:number] |
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128 |
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129 return [ self.get_entry(user, x[0], x[1]) for x in entries ] |
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130 |
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131 def entry(self, user, datestamp, permissions): |
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132 for permission in permissions: |
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133 filename = self.location(user, permission, datestamp) |
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134 if os.path.exists(filename): |
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135 return self.get_entry(user, datestamp, permission) |
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136 |
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137 def entries(self, user, permissions, year=None, month=None, day=None): |
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138 |
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139 # build a file glob expression |
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140 dateargs = [ year, month, day, None ] |
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141 glob_expr = '' |
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142 for index in range(len(dateargs)): |
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143 value = dateargs[index] |
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144 if value is None: |
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145 break |
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146 length = len(utils.timeformat[index]) |
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147 glob_expr += '%0*d' % (length, int(value)) |
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148 while index < len(utils.timeformat): |
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149 glob_expr += '[0-9]' * len(utils.timeformat[index]) |
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150 index += 1 |
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151 |
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152 # get the blog entries |
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153 entries = [] |
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154 for permission in permissions: |
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155 entries.extend([(os.path.split(entry)[-1], permission) |
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156 for entry in glob(os.path.join(self.location(user, permission), glob_expr))]) |
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157 entries.sort(key=lambda x: x[0], reverse=True) |
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158 return [ self.get_entry(user, x[0], x[1]) for x in entries ] |
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159 |
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160 def post(self, user, datestamp, body, privacy): |
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161 blog = file(self.location(user, privacy, datestamp), 'w') |
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162 print >> blog, body |
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163 return Blog.post(self, user, datestamp, body, privacy) |
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164 |
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165 def delete(self, user, datestamp): |
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166 for permission in 'public', 'secret', 'private': |
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167 path = self.location(user, permission, datestamp) |
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168 if os.path.exists(path): |
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169 os.remove(path) |