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1 ;;; gnus-picon.el --- displaying pretty icons in Gnus
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2 ;; Copyright (C) 1996,97 Free Software Foundation, Inc.
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3
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4 ;; Author: Wes Hardaker <hardaker@ece.ucdavis.edu>
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5 ;; Keywords: news xpm annotation glyph faces
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6
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7 ;; This file is part of GNU Emacs.
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8
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9 ;; GNU Emacs is free software; you can redistribute it and/or modify
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10 ;; it under the terms of the GNU General Public License as published by
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11 ;; the Free Software Foundation; either version 2, or (at your option)
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12 ;; any later version.
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13
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14 ;; GNU Emacs is distributed in the hope that it will be useful,
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15 ;; but WITHOUT ANY WARRANTY; without even the implied warranty of
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16 ;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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17 ;; GNU General Public License for more details.
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18
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19 ;; You should have received a copy of the GNU General Public License
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20 ;; along with GNU Emacs; see the file COPYING. If not, write to the
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21 ;; Free Software Foundation, Inc., 59 Temple Place - Suite 330,
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22 ;; Boston, MA 02111-1307, USA.
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23
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24 ;;; Commentary:
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25
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142
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26 ;;; TODO:
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27 ;; See the comment in gnus-picons-remove
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28
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29 ;;; Code:
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30
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31 (require 'gnus)
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32 (require 'xpm)
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33 (require 'annotations)
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34 (require 'custom)
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35 (require 'gnus-art)
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36 (require 'gnus-win)
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37
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142
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38 ;;; User variables:
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39
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98
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40 (defgroup picons nil
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41 "Show pictures of people, domains, and newsgroups (XEmacs).
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42 For this to work, you must add gnus-group-display-picons to the
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43 gnus-summary-display-hook or to the gnus-article-display-hook
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44 depending on what gnus-picons-display-where is set to. You must
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45 also add gnus-article-display-picons to gnus-article-display-hook."
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46 :group 'gnus-visual)
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47
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48 (defcustom gnus-picons-buffer "*Icon Buffer*"
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49 "Buffer name to display the icons in if gnus-picons-display-where is 'picons."
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50 :type 'string
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51 :group 'picons)
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52
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53 (defcustom gnus-picons-display-where 'picons
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54 "Where to display the group and article icons.
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55 Legal values are `article' and `picons'."
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56 :type '(choice symbol string)
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57 :group 'picons)
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58
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59 (defcustom gnus-picons-database "/usr/local/faces"
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60 "Defines the location of the faces database.
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61 For information on obtaining this database of pretty pictures, please
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62 see http://www.cs.indiana.edu/picons/ftp/index.html"
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63 :type 'directory
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64 :group 'picons)
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65
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66 (defcustom gnus-picons-news-directory "news"
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67 "Sub-directory of the faces database containing the icons for newsgroups."
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68 :type 'string
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69 :group 'picons)
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70
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140
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71 (defcustom gnus-picons-user-directories '("local" "users" "usenix" "misc")
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72 "List of directories to search for user faces."
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73 :type '(repeat string)
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74 :group 'picons)
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75
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76 (defcustom gnus-picons-domain-directories '("domains")
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77 "List of directories to search for domain faces.
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78 Some people may want to add \"unknown\" to this list."
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79 :type '(repeat string)
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80 :group 'picons)
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81
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82 (defcustom gnus-picons-refresh-before-display nil
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83 "If non-nil, display the article buffer before computing the picons."
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84 :type 'boolean
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85 :group 'picons)
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86
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108
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87 (defcustom gnus-picons-x-face-file-name
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88 (format "/tmp/picon-xface.%s.xbm" (user-login-name))
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89 "The name of the file in which to store the converted X-face header."
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90 :type 'string
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91 :group 'picons)
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92
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93 (defcustom gnus-picons-convert-x-face (format "{ echo '/* Width=48, Height=48 */'; uncompface; } | icontopbm | pbmtoxbm > %s" gnus-picons-x-face-file-name)
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94 "Command to convert the x-face header into a xbm file."
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95 :type 'string
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96 :group 'picons)
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97
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98
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98 (defcustom gnus-picons-display-as-address t
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99 "*If t display textual email addresses along with pictures."
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100 :type 'boolean
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101 :group 'picons)
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102
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103 (defcustom gnus-picons-file-suffixes
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104 (when (featurep 'x)
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105 (let ((types (list "xbm")))
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106 (when (featurep 'gif)
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107 (push "gif" types))
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108 (when (featurep 'xpm)
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109 (push "xpm" types))
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110 types))
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111 "List of suffixes on picon file names to try."
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112 :type '(repeat string)
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113 :group 'picons)
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114
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115 (defcustom gnus-picons-display-article-move-p t
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116 "*Whether to move point to first empty line when displaying picons.
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117 This has only an effect if `gnus-picons-display-where' has value `article'."
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118 :type 'boolean
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119 :group 'picons)
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120
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142
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121 (defcustom gnus-picons-clear-cache-on-shutdown t
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122 "*Whether to clear the picons cache when exiting gnus.
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123 Gnus caches every picons it finds while it is running. This saves
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124 some time in the search process but eats some memory. If this
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125 variable is set to nil, Gnus will never clear the cache itself; you
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126 will have to manually call `gnus-picons-clear-cache' to clear it.
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127 Otherwise the cache will be cleared every time you exit Gnus."
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128 :type 'boolean
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129 :group 'picons)
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130
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142
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131 (defcustom gnus-picons-piconsearch-url nil
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132 "*The url to query for picons. Setting this to nil will disable it.
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133 The only plublicly available address currently known is
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134 http://www.cs.indiana.edu:800/piconsearch. If you know of any other,
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135 please tell me so that we can list it."
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136 :type '(choice (const :tag "Disable" :value nil)
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137 (const :tag "www.cs.indiana.edu"
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138 :value "http://www.cs.indiana.edu:800/piconsearch")
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139 (string))
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140 :group 'picons)
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141
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142
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142 ;;; Internal variables:
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143
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144 (defvar gnus-picons-processes-alist nil
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145 "Picons processes currently running and their environment.")
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146 (defvar gnus-picons-glyph-alist nil
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147 "Picons glyphs cache.
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148 List of pairs (KEY . GLYPH) where KEY is either a filename or an URL.")
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149 (defvar gnus-picons-url-alist nil
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150 "Picons file names cache.
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151 List of pairs (KEY . NAME) where KEY is (USER HOST DBS) and NAME is an URL.")
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152
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153 (defvar gnus-group-annotations nil
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154 "List of annotations added/removed when selecting/exiting a group")
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142
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155 (defvar gnus-group-annotations-lock nil)
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140
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156 (defvar gnus-article-annotations nil
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157 "List of annotations added/removed when selecting an article")
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142
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158 (defvar gnus-article-annotations-lock nil)
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140
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159 (defvar gnus-x-face-annotations nil
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142
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160 "List of annotations added/removed when selecting an article with an
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161 X-Face.")
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162 (defvar gnus-x-face-annotations-lock nil)
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163
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164 (defvar gnus-picons-jobs-alist nil
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165 "List of jobs that still need be done.
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166 This is a list of (SYM-ANN TAG ARGS...) where SYM-ANN three annotations list,
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167 TAG is one of `picon' or `search' indicating that the job should query a
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168 picon or do a search for picons file names, and ARGS is some additionnal
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169 arguments necessary for the job.")
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170
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171 (defvar gnus-picons-job-already-running nil
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172 "Lock to ensure only one stream of http requests is running.")
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173
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174 ;;; Functions:
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175
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176 (defsubst gnus-picons-lock (symbol)
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177 (intern (concat (symbol-name symbol) "-lock")))
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178
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179 (defun gnus-picons-remove (symbol)
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142
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180 "Remove all annotations in variable named SYMBOL.
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181 This function is careful to set it to nil before removing anything so that
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182 asynchronous process don't get crazy."
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142
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183 ;; clear the lock
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184 (set (gnus-picons-lock symbol) nil)
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185 ;; clear all annotations
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186 (mapc (function (lambda (item)
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187 (if (annotationp item)
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188 (delete-annotation item))))
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189 (prog1 (symbol-value symbol)
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190 (set symbol nil)))
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191 ;; FIXME: there's a race condition here. If a job is already
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192 ;; running, it has already removed itself from this queue... But
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193 ;; will still display its picon.
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194 ;; TODO: push a request to clear an annotation. Then
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195 ;; gnus-picons-next-job will be able to clean up when it gets the
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196 ;; hand
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197 (setq gnus-picons-jobs-alist (remassq symbol gnus-picons-jobs-alist)))
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198
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199 (defun gnus-picons-remove-all ()
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200 "Removes all picons from the Gnus display(s)."
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201 (interactive)
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140
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202 (gnus-picons-remove 'gnus-article-annotations)
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203 (gnus-picons-remove 'gnus-group-annotations)
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204 (gnus-picons-remove 'gnus-x-face-annotations)
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205 (when (bufferp gnus-picons-buffer)
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206 (kill-buffer gnus-picons-buffer)))
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207
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208 (defun gnus-get-buffer-name (variable)
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209 "Returns the buffer name associated with the contents of a variable."
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210 (cond ((symbolp variable) (let ((newvar (cdr (assq variable
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211 gnus-window-to-buffer))))
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212 (cond ((symbolp newvar)
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213 (symbol-value newvar))
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214 ((stringp newvar) newvar))))
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215 ((stringp variable) variable)))
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216
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217 (defun gnus-picons-prepare-for-annotations (annotations)
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218 "Prepare picons buffer for puting annotations memorized in ANNOTATIONS.
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219 ANNOTATIONS should be a symbol naming a variable wich contains a list of
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220 annotations. Sets buffer to `gnus-picons-display-where'."
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221 ;; let drawing catch up
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222 (when gnus-picons-refresh-before-display
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223 (sit-for 0))
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224 (set-buffer (get-buffer-create
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225 (gnus-get-buffer-name gnus-picons-display-where)))
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226 (gnus-add-current-to-buffer-list)
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227 (goto-char (point-min))
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228 (if (and (eq gnus-picons-display-where 'article)
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229 gnus-picons-display-article-move-p)
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230 (when (search-forward "\n\n" nil t)
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142
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231 (forward-line -1))
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232 (make-local-variable 'inhibit-read-only)
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233 (setq buffer-read-only t
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234 inhibit-read-only nil))
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235 (gnus-picons-remove annotations))
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236
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237 (defun gnus-picons-article-display-x-face ()
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238 "Display the x-face header bitmap in the 'gnus-picons-display-where buffer."
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239 ;; delete any old ones.
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140
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240 ;; This is needed here because gnus-picons-display-x-face will not
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241 ;; be called if there is no X-Face header
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242 (gnus-picons-remove 'gnus-x-face-annotations)
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243 ;; display the new one.
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244 (let ((gnus-article-x-face-command 'gnus-picons-display-x-face))
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245 (gnus-article-display-x-face)))
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246
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140
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247 (defun gnus-picons-x-face-sentinel (process event)
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142
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248 (let* ((env (assq process gnus-picons-processes-alist))
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249 (annot (cdr env)))
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250 (setq gnus-picons-processes-alist (remassq process
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251 gnus-picons-processes-alist))
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252 (when annot
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253 (set-annotation-glyph annot
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254 (make-glyph gnus-picons-x-face-file-name))
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255 (if (memq annot gnus-x-face-annotations)
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256 (delete-file gnus-picons-x-face-file-name)))))
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140
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257
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258 (defun gnus-picons-display-x-face (beg end)
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259 "Function to display the x-face header in the picons window.
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260 To use: (setq gnus-article-x-face-command 'gnus-picons-display-x-face)"
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261 (interactive)
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140
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262 (if (featurep 'xface)
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263 ;; Use builtin support
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264 (let ((buf (current-buffer)))
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265 (save-excursion
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266 (gnus-picons-prepare-for-annotations 'gnus-x-face-annotations)
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267 (setq gnus-x-face-annotations
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142
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268 (cons (make-annotation
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269 (vector 'xface
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270 :data (concat "X-Face: "
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271 (buffer-substring beg end buf)))
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140
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272 nil 'text)
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273 gnus-x-face-annotations))))
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274 ;; convert the x-face header to a .xbm file
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275 (let* ((process-connection-type nil)
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142
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276 (annot (save-excursion
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277 (gnus-picons-prepare-for-annotations
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278 'gnus-x-face-annotations)
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279 (make-annotation nil nil 'text)))
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280 (process (start-process-shell-command "gnus-x-face" nil
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281 gnus-picons-convert-x-face)))
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282 (push annot gnus-x-face-annotations)
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283 (push (cons process annot) gnus-picons-processes-alist)
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140
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284 (process-kill-without-query process)
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285 (set-process-sentinel process 'gnus-picons-x-face-sentinel)
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286 (process-send-region process beg end)
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287 (process-send-eof process))))
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288
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289 (defun gnus-article-display-picons ()
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290 "Display faces for an author and his/her domain in gnus-picons-display-where."
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291 (interactive)
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140
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292 (let (from at-idx)
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293 (when (and (featurep 'xpm)
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294 (or (not (fboundp 'device-type)) (equal (device-type) 'x))
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295 (setq from (mail-fetch-field "from"))
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142
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296 (setq from (downcase (or (cadr (mail-extract-address-components
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297 from))
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298 "")))
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299 (or (setq at-idx (string-match "@" from))
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300 (setq at-idx (length from))))
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301 (save-excursion
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302 (let ((username (downcase (substring from 0 at-idx)))
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303 (addrs (if (eq at-idx (length from))
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304 (if gnus-local-domain
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142
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305 (message-tokenize-header gnus-local-domain "."))
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140
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306 (message-tokenize-header (substring from (1+ at-idx))
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307 "."))))
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308 (gnus-picons-prepare-for-annotations 'gnus-article-annotations)
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142
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309 (if (null gnus-picons-piconsearch-url)
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310 (setq gnus-article-annotations
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311 (nconc gnus-article-annotations
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312 (gnus-picons-display-pairs
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313 (gnus-picons-lookup-pairs
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314 addrs gnus-picons-domain-directories)
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315 (not (or gnus-picons-display-as-address
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316 gnus-article-annotations))
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317 "." t)
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318 (if (and gnus-picons-display-as-address addrs)
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319 (list (make-annotation [string :data "@"] nil
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320 'text nil nil nil t)))
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321 (gnus-picons-display-picon-or-name
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322 (gnus-picons-lookup-user username addrs)
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323 username t)))
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324 (push (list 'gnus-article-annotations 'search username addrs
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325 gnus-picons-domain-directories t)
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326 gnus-picons-jobs-alist)
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327 (gnus-picons-next-job))
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328
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329 (add-hook 'gnus-summary-exit-hook 'gnus-picons-remove-all))))))
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330
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331 (defun gnus-group-display-picons ()
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108
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332 "Display icons for the group in the gnus-picons-display-where buffer."
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333 (interactive)
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334 (when (and (featurep 'xpm)
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335 (or (not (fboundp 'device-type)) (equal (device-type) 'x)))
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336 (save-excursion
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140
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337 (gnus-picons-prepare-for-annotations 'gnus-group-annotations)
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142
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338 (if (null gnus-picons-piconsearch-url)
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339 (setq gnus-group-annotations
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340 (gnus-picons-display-pairs
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341 (gnus-picons-lookup-pairs (reverse (message-tokenize-header
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342 gnus-newsgroup-name "."))
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343 gnus-picons-news-directory)
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344 t "."))
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345 (push (list 'gnus-group-annotations 'search nil
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346 (message-tokenize-header gnus-newsgroup-name ".")
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347 (if (listp gnus-picons-news-directory)
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348 gnus-picons-news-directory
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349 (list gnus-picons-news-directory))
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|
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350 nil)
|
|
|
351 gnus-picons-jobs-alist)
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|
|
352 (gnus-picons-next-job))
|
|
|
353
|
|
0
|
354 (add-hook 'gnus-summary-exit-hook 'gnus-picons-remove-all))))
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|
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355
|
|
142
|
356 (defsubst gnus-picons-lookup-internal (addrs dir)
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|
357 (setq dir (expand-file-name dir gnus-picons-database))
|
|
|
358 (gnus-picons-try-face (dolist (part (reverse addrs) dir)
|
|
|
359 (setq dir (expand-file-name part dir)))))
|
|
0
|
360
|
|
140
|
361 (defun gnus-picons-lookup (addrs dirs)
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|
|
362 "Lookup the picon for ADDRS in databases DIRS.
|
|
|
363 Returns the picon filename or NIL if none found."
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|
364 (let (result)
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|
365 (while (and dirs (null result))
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142
|
366 (setq result (gnus-picons-lookup-internal addrs (pop dirs))))
|
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140
|
367 result))
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368
|
|
|
369 (defun gnus-picons-lookup-user-internal (user domains)
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|
370 (let ((dirs gnus-picons-user-directories)
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|
142
|
371 domains-tmp dir picon)
|
|
140
|
372 (while (and dirs (null picon))
|
|
142
|
373 (setq domains-tmp domains
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|
374 dir (pop dirs))
|
|
|
375 (while (and domains-tmp
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|
|
376 (null (setq picon (gnus-picons-lookup-internal
|
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|
377 (cons user domains-tmp) dir))))
|
|
|
378 (pop domains-tmp))
|
|
|
379 ;; Also make a try in MISC subdir
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|
|
380 (unless picon
|
|
|
381 (setq picon (gnus-picons-lookup-internal (list user "MISC") dir))))
|
|
140
|
382 picon))
|
|
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383
|
|
|
384 (defun gnus-picons-lookup-user (user domains)
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|
385 "Lookup the picon for USER at DOMAINS.
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|
|
386 USER is a string containing a name.
|
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|
387 DOMAINS is a list of strings from the fully qualified domain name."
|
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|
388 (or (gnus-picons-lookup-user-internal user domains)
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|
|
389 (gnus-picons-lookup-user-internal "unknown" domains)))
|
|
|
390
|
|
|
391 (defun gnus-picons-lookup-pairs (domains directories)
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|
392 "Lookup picons for DOMAINS and all its parents in DIRECTORIES.
|
|
|
393 Returns a list of PAIRS whose CAR is the picon filename or NIL if
|
|
|
394 none, and whose CDR is the corresponding element of DOMAINS."
|
|
|
395 (let (picons)
|
|
142
|
396 (setq directories (if (listp directories)
|
|
|
397 directories
|
|
|
398 (list directories)))
|
|
140
|
399 (while domains
|
|
142
|
400 (push (list (gnus-picons-lookup (cons "unknown" domains) directories)
|
|
140
|
401 (pop domains))
|
|
|
402 picons))
|
|
|
403 picons))
|
|
|
404
|
|
142
|
405 (defun gnus-picons-display-picon-or-name (picon name &optional right-p)
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|
|
406 (cond (picon (gnus-picons-display-glyph picon name right-p))
|
|
|
407 (gnus-picons-display-as-address (list (make-annotation
|
|
|
408 (vector 'string :data name)
|
|
|
409 nil 'text
|
|
|
410 nil nil nil right-p)))))
|
|
140
|
411
|
|
142
|
412 (defun gnus-picons-display-pairs (pairs &optional bar-p dot-p right-p)
|
|
140
|
413 "Display picons in list PAIRS."
|
|
|
414 (let ((bar (and bar-p (or gnus-picons-display-as-address
|
|
142
|
415 (annotations-in-region (point)
|
|
|
416 (min (point-max)
|
|
|
417 (1+ (point)))
|
|
|
418 (current-buffer)))))
|
|
140
|
419 (domain-p (and gnus-picons-display-as-address dot-p))
|
|
142
|
420 pair picons)
|
|
140
|
421 (while pairs
|
|
142
|
422 (setq pair (pop pairs)
|
|
|
423 picons (nconc (if (and domain-p picons (not right-p))
|
|
|
424 (list (make-annotation
|
|
|
425 (vector 'string :data dot-p)
|
|
|
426 nil 'text nil nil nil right-p)))
|
|
|
427 (gnus-picons-display-picon-or-name (car pair)
|
|
|
428 (cadr pair)
|
|
|
429 right-p)
|
|
|
430 (if (and domain-p pairs right-p)
|
|
|
431 (list (make-annotation
|
|
|
432 (vector 'string :data dot-p)
|
|
|
433 nil 'text nil nil nil right-p)))
|
|
|
434 (when (and bar domain-p)
|
|
|
435 (setq bar nil)
|
|
|
436 (gnus-picons-display-glyph
|
|
|
437 (gnus-picons-try-face gnus-xmas-glyph-directory
|
|
|
438 "bar.")
|
|
|
439 nil t))
|
|
|
440 picons)))
|
|
98
|
441 picons))
|
|
0
|
442
|
|
142
|
443 (defun gnus-picons-try-face (dir &optional filebase)
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|
|
444 (let* ((dir (file-name-as-directory dir))
|
|
|
445 (filebase (or filebase "face."))
|
|
|
446 (key (concat dir filebase))
|
|
|
447 (glyph (cdr (assoc key gnus-picons-glyph-alist)))
|
|
|
448 (suffixes gnus-picons-file-suffixes)
|
|
|
449 f)
|
|
|
450 (while (and suffixes (null glyph))
|
|
|
451 (when (file-exists-p (setq f (expand-file-name (concat filebase
|
|
|
452 (pop suffixes))
|
|
|
453 dir)))
|
|
|
454 (setq glyph (make-glyph f))
|
|
|
455 (push (cons key glyph) gnus-picons-glyph-alist)))
|
|
|
456 glyph))
|
|
108
|
457
|
|
142
|
458 (defun gnus-picons-display-glyph (glyph &optional part rightp)
|
|
|
459 (let ((new (make-annotation glyph (point) 'text nil nil nil rightp)))
|
|
|
460 (when (and part gnus-picons-display-as-address)
|
|
|
461 (set-annotation-data new (cons new
|
|
|
462 (make-glyph (vector 'string :data part))))
|
|
|
463 (set-annotation-action new 'gnus-picons-action-toggle))
|
|
|
464 (nconc
|
|
|
465 (list new)
|
|
|
466 (if (and (eq major-mode 'gnus-article-mode)
|
|
|
467 (not gnus-picons-display-as-address)
|
|
|
468 (not part))
|
|
|
469 (list (make-annotation [string :data " "]
|
|
|
470 (point) 'text nil nil nil rightp))))))
|
|
0
|
471
|
|
142
|
472 (defun gnus-picons-action-toggle (data)
|
|
|
473 "Toggle annotation"
|
|
98
|
474 (interactive "e")
|
|
142
|
475 (let* ((annot (car data))
|
|
|
476 (glyph (annotation-glyph annot)))
|
|
|
477 (set-annotation-glyph annot (cdr data))
|
|
|
478 (set-annotation-data annot (cons annot glyph))))
|
|
|
479
|
|
|
480 (defun gnus-picons-clear-cache ()
|
|
|
481 "Clear the picons cache"
|
|
|
482 (interactive)
|
|
|
483 (setq gnus-picons-glyph-alist nil))
|
|
98
|
484
|
|
0
|
485 (gnus-add-shutdown 'gnus-picons-close 'gnus)
|
|
|
486
|
|
|
487 (defun gnus-picons-close ()
|
|
|
488 "Shut down the picons."
|
|
142
|
489 (if gnus-picons-clear-cache-on-shutdown
|
|
|
490 (gnus-picons-clear-cache)))
|
|
|
491
|
|
|
492 ;;; Query a remote DB. This requires some stuff from w3 !
|
|
|
493
|
|
|
494 (require 'url)
|
|
|
495 (require 'w3-forms)
|
|
|
496
|
|
|
497 (defun gnus-picons-url-retrieve (url fn arg)
|
|
|
498 (let ((old-asynch (default-value 'url-be-asynchronous))
|
|
|
499 (url-working-buffer (generate-new-buffer " *picons*"))
|
|
|
500 (url-request-method nil)
|
|
|
501 (url-package-name "Gnus")
|
|
|
502 (url-package-version gnus-version-number))
|
|
|
503 (setq-default url-be-asynchronous t)
|
|
|
504 (save-excursion
|
|
|
505 (set-buffer url-working-buffer)
|
|
|
506 (setq url-be-asynchronous t
|
|
|
507 url-show-status nil
|
|
|
508 url-current-callback-data arg
|
|
|
509 url-current-callback-func fn)
|
|
|
510 (url-retrieve url t))
|
|
|
511 (setq-default url-be-asynchronous old-asynch)))
|
|
|
512
|
|
|
513 (defun gnus-picons-make-glyph (type)
|
|
|
514 "Make a TYPE glyph using current buffer as data. Handles xbm nicely."
|
|
|
515 (cond ((null type) nil)
|
|
|
516 ((eq type 'xbm) (let ((fname (make-temp-name "/tmp/picon")))
|
|
|
517 (write-region (point-min) (point-max) fname
|
|
|
518 nil 'quiet)
|
|
|
519 (prog1 (make-glyph (vector 'xbm :file fname))
|
|
|
520 (delete-file fname))))
|
|
|
521 (t (make-glyph (vector type :data (buffer-string))))))
|
|
|
522
|
|
|
523 ;;; Parsing of piconsearch result page.
|
|
|
524
|
|
|
525 ;; Assumes:
|
|
|
526 ;; 1 - each value field has the form: "<strong>key</strong> = <kbd>value</kbd>"
|
|
|
527 ;; 2 - a "<p>" separates the keywords from the results
|
|
|
528 ;; 3 - every results begins by the path within the database at the beginning
|
|
|
529 ;; of the line in raw text.
|
|
|
530 ;; 3b - and the href following it is the preferred image type.
|
|
|
531
|
|
|
532 ;; if 1 or 2 is not met, it will probably cause an error. The other
|
|
|
533 ;; will go undetected
|
|
|
534
|
|
|
535 (defun gnus-picons-parse-value (name)
|
|
|
536 (goto-char (point-min))
|
|
|
537 (re-search-forward (concat "<strong>"
|
|
|
538 (regexp-quote name)
|
|
|
539 "</strong> *= *<kbd> *\\([^ <][^<]*\\) *</kbd>"))
|
|
|
540 (buffer-substring (match-beginning 1) (match-end 1)))
|
|
|
541
|
|
|
542 (defun gnus-picons-parse-filenames ()
|
|
|
543 ;; returns an alist of ((USER ADDRS DB) . URL)
|
|
|
544 (let* ((case-fold-search t)
|
|
|
545 (user (gnus-picons-parse-value "user"))
|
|
|
546 (host (gnus-picons-parse-value "host"))
|
|
|
547 (dbs (message-tokenize-header (gnus-picons-parse-value "db") " "))
|
|
|
548 (start-re
|
|
|
549 (concat
|
|
|
550 ;; dbs
|
|
|
551 "^\\(" (mapconcat 'identity dbs "\\|") "\\)/"
|
|
|
552 ;; host
|
|
|
553 "\\(\\(" (replace-in-string host "\\." "/\\|" t) "/\\|MISC/\\)*\\)"
|
|
|
554 ;; user
|
|
|
555 "\\(" (regexp-quote user) "\\|unknown\\)/"
|
|
|
556 "face\\."))
|
|
|
557 cur-db cur-host cur-user types res)
|
|
|
558 ;; now point will be somewhere in the header. Find beginning of
|
|
|
559 ;; entries
|
|
|
560 (re-search-forward "<p>[ \t\n]*")
|
|
|
561 (while (re-search-forward start-re nil t)
|
|
|
562 (setq cur-db (buffer-substring (match-beginning 1) (match-end 1))
|
|
|
563 cur-host (buffer-substring (match-beginning 2) (match-end 2))
|
|
|
564 cur-user (buffer-substring (match-beginning 4) (match-end 4))
|
|
|
565 cur-host (nreverse (message-tokenize-header cur-host "/")))
|
|
|
566 ;; XXX - KLUDGE: there is a blank picon in news/MISC/unknown
|
|
|
567 (unless (and (string-equal cur-db "news")
|
|
|
568 (string-equal cur-user "unknown")
|
|
|
569 (equal cur-host '("MISC")))
|
|
|
570 ;; ok now we have found an entry (USER HOST DB), find the
|
|
|
571 ;; corresponding picon URL
|
|
|
572 (save-restriction
|
|
|
573 ;; restrict region to this entry
|
|
|
574 (narrow-to-region (point) (search-forward "<br>"))
|
|
|
575 (goto-char (point-min))
|
|
|
576 (setq types gnus-picons-file-suffixes)
|
|
|
577 (while (and types
|
|
|
578 (not (re-search-forward
|
|
|
579 (concat "<a[ \t\n]+href=\"\\([^\"]*\\."
|
|
|
580 (regexp-quote (car types)) "\\)\"")
|
|
|
581 nil t)))
|
|
|
582 (pop types))
|
|
|
583 (push (cons (list cur-user cur-host cur-db)
|
|
|
584 (buffer-substring (match-beginning 1) (match-end 1)))
|
|
|
585 res))))
|
|
|
586 (nreverse res)))
|
|
|
587
|
|
|
588 ;;; picon network display functions :
|
|
|
589
|
|
|
590 (defun gnus-picons-network-display-internal (sym-ann glyph part right-p)
|
|
|
591 (set-buffer
|
|
|
592 (get-buffer-create (gnus-get-buffer-name gnus-picons-display-where)))
|
|
|
593 (set sym-ann (nconc (symbol-value sym-ann)
|
|
|
594 (gnus-picons-display-picon-or-name glyph part right-p)))
|
|
|
595 (gnus-picons-next-job-internal))
|
|
|
596
|
|
|
597 (defun gnus-picons-network-display-callback (url part sym-ann right-p)
|
|
|
598 (let ((glyph (gnus-picons-make-glyph (cdr (assoc url-current-mime-type
|
|
|
599 w3-image-mappings)))))
|
|
|
600 (kill-buffer (current-buffer))
|
|
|
601 (push (cons url glyph) gnus-picons-glyph-alist)
|
|
|
602 (gnus-picons-network-display-internal sym-ann glyph part right-p)))
|
|
|
603
|
|
|
604 (defun gnus-picons-network-display (url part sym-ann right-p)
|
|
|
605 (let ((cache (assoc url gnus-picons-glyph-alist)))
|
|
|
606 (if (or cache (null url))
|
|
|
607 (gnus-picons-network-display-internal sym-ann (cdr cache) part right-p)
|
|
|
608 (gnus-picons-url-retrieve url 'gnus-picons-network-display-callback
|
|
|
609 (list url part sym-ann right-p)))))
|
|
|
610
|
|
|
611 ;;; search job functions
|
|
|
612
|
|
|
613 (defun gnus-picons-network-search-internal (user addrs dbs sym-ann right-p
|
|
|
614 &optional fnames)
|
|
|
615 (let (curkey dom pfx url dbs-tmp cache new-jobs)
|
|
|
616 ;; First do the domain search
|
|
|
617 (dolist (part (if right-p
|
|
|
618 (reverse addrs)
|
|
|
619 addrs))
|
|
|
620 (setq pfx (nconc (list part) pfx)
|
|
|
621 dom (cond ((and dom right-p) (concat part "." dom))
|
|
|
622 (dom (concat dom "." part))
|
|
|
623 (t part))
|
|
|
624 curkey (list "unknown" dom dbs))
|
|
|
625 (when (null (setq cache (assoc curkey gnus-picons-url-alist)))
|
|
|
626 ;; This one is not yet in the cache, create a new entry
|
|
|
627 ;; Search for an entry
|
|
|
628 (setq dbs-tmp dbs
|
|
|
629 url nil)
|
|
|
630 (while (and dbs-tmp (null url))
|
|
|
631 (setq url (or (cdr (assoc (list "unknown" pfx (car dbs-tmp)) fnames))
|
|
|
632 (and (eq dom part)
|
|
|
633 ;; This is the first component. Try the
|
|
|
634 ;; catch-all MISC component
|
|
|
635 (cdr (assoc (list "unknown"
|
|
|
636 '("MISC")
|
|
|
637 (car dbs-tmp))
|
|
|
638 fnames)))))
|
|
|
639 (pop dbs-tmp))
|
|
|
640 (push (setq cache (cons curkey url)) gnus-picons-url-alist))
|
|
|
641 ;; Put this glyph in the job list
|
|
|
642 (if (and (not (eq dom part)) gnus-picons-display-as-address)
|
|
|
643 (push (list sym-ann "." right-p) new-jobs))
|
|
|
644 (push (list sym-ann 'picon (cdr cache) part right-p) new-jobs))
|
|
|
645 ;; next, the user search
|
|
|
646 (when user
|
|
|
647 (setq curkey (list user dom gnus-picons-user-directories))
|
|
|
648 (if (null (setq cache (assoc curkey gnus-picons-url-alist)))
|
|
|
649 (let ((users (list user "unknown"))
|
|
|
650 dirs usr domains-tmp dir picon)
|
|
|
651 (while (and users (null picon))
|
|
|
652 (setq dirs gnus-picons-user-directories
|
|
|
653 usr (pop users))
|
|
|
654 (while (and dirs (null picon))
|
|
|
655 (setq domains-tmp addrs
|
|
|
656 dir (pop dirs))
|
|
|
657 (while (and domains-tmp
|
|
|
658 (null (setq picon (assoc (list usr domains-tmp dir)
|
|
|
659 fnames))))
|
|
|
660 (pop domains-tmp))
|
|
|
661 (unless picon
|
|
|
662 (setq picon (assoc (list usr '("MISC") dir) fnames)))))
|
|
|
663 (push (setq cache (cons curkey (cdr picon)))
|
|
|
664 gnus-picons-url-alist)))
|
|
|
665 (if (and gnus-picons-display-as-address new-jobs)
|
|
|
666 (push (list sym-ann "@" right-p) new-jobs))
|
|
|
667 (push (list sym-ann 'picon (cdr cache) user right-p) new-jobs))
|
|
|
668 (setq gnus-picons-jobs-alist (nconc (nreverse new-jobs)
|
|
|
669 gnus-picons-jobs-alist))
|
|
|
670 (gnus-picons-next-job-internal)))
|
|
|
671
|
|
|
672 (defun gnus-picons-network-search-callback (user addrs dbs sym-ann right-p)
|
|
|
673 (gnus-picons-network-search-internal user addrs dbs sym-ann right-p
|
|
|
674 (prog1 (gnus-picons-parse-filenames)
|
|
|
675 (kill-buffer (current-buffer)))))
|
|
|
676
|
|
|
677 (defun gnus-picons-network-search (user addrs dbs sym-ann right-p)
|
|
|
678 (let* ((host (mapconcat 'identity addrs "."))
|
|
|
679 (key (list (or user "unknown") host (if user
|
|
|
680 gnus-picons-user-directories
|
|
|
681 dbs)))
|
|
|
682 (cache (assoc key gnus-picons-url-alist)))
|
|
|
683 (if (null cache)
|
|
|
684 (gnus-picons-url-retrieve
|
|
|
685 (concat gnus-picons-piconsearch-url
|
|
|
686 "?user=" (w3-form-encode-xwfu (or user "unknown"))
|
|
|
687 "&host=" (w3-form-encode-xwfu host)
|
|
|
688 "&db=" (mapconcat 'w3-form-encode-xwfu
|
|
|
689 (if user
|
|
|
690 (append dbs
|
|
|
691 gnus-picons-user-directories)
|
|
|
692 dbs)
|
|
|
693 "+"))
|
|
|
694 'gnus-picons-network-search-callback
|
|
|
695 (list user addrs dbs sym-ann right-p))
|
|
|
696 (gnus-picons-network-search-internal user addrs dbs sym-ann right-p))))
|
|
|
697
|
|
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698 ;;; Main jobs dispatcher function
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699 ;; Given that XEmacs is not really multi threaded, this locking should
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700 ;; be sufficient
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701
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702 (defun gnus-picons-next-job-internal ()
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703 (if gnus-picons-jobs-alist
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704 (let* ((job (pop gnus-picons-jobs-alist))
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705 (sym-ann (pop job))
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706 (tag (pop job)))
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707 (if tag
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708 (cond ((stringp tag);; (SYM-ANN "..." RIGHT-P)
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709 (gnus-picons-network-display-internal sym-ann nil tag
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710 (pop job)))
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711 ((eq 'search tag);; (SYM-ANN 'search USER ADDRS DBS RIGHT-P)
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712 (gnus-picons-network-search
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713 (pop job) (pop job) (pop job) sym-ann (pop job)))
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714 ((eq 'picon tag);; (SYM-ANN 'picon URL PART RIGHT-P)
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715 (gnus-picons-network-display
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716 (pop job) (pop job) sym-ann (pop job)))
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717 (t (error "Unknown picon job tag %s" tag)))))
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718 (setq gnus-picons-job-already-running nil)))
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719
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720 (defun gnus-picons-next-job ()
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721 "Start processing the job queue."
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722 (unless gnus-picons-job-already-running
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723 (setq gnus-picons-job-already-running t)
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724 (gnus-picons-next-job-internal)))
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0
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725
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726 (provide 'gnus-picon)
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727
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728 ;;; gnus-picon.el ends here
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