1

     2

"""

     3

    HTML output

     4

"""

     5

     6

import os.path

     7

     8

def urljoin (*parts) :

     9

    url = ""

    10

    11

    for part in parts :

    12

        if part :

    13

            if url :

    14

                url += "/" + part

    15

            else :

    16

                url += part

    17

    18

    return url

    19

    20

class BaseFormatter (object) :

    21

    """

    22

        Trivial HTML template formatter.

    23

    """

    24

    25

    def __init__ (self, basedir, encoding = 'utf-8') :

    26

        """

    27

                basedir     - directory containing the required .html files

    28

                encoding    - unicode encoding of file content (default: utf-8)

    29

        """

    30

    31

        self.basedir = os.path.abspath(basedir)

    32

        self.encoding = encoding

    33

    34

    def render (self, name, **vars) :

    35

        """

    36

            Format and return given template.

    37

    38

                name        - basename of template without .html

    39

                **vars      - template context

    40

    41

            The template is rendered and returned as unicode.

    42

        """

    43

    44

        path = os.path.join(self.basedir, name) + '.html'

    45

    46

        # read contents

    47

        data = open(path).read().decode(self.encoding)

    48

    49

        # format

    50

        return data % vars

    51

    52

    53

# XXX: legacy

    54

class Formatter (BaseFormatter) :

    55

    56

    TEMPLATE_DIR = 'etc/templates'

    57

    58

    IMG_URL = '%(prefix)s?t=%(target)s&s=%(style)&i=%(interval)s'

    59

    TARGET_URL = '%(prefix)s?t=%(target)s'

    60

    61

    def __init__ (self, template_dir=TEMPLATE_DIR, url_prefix='', img_url=IMG_URL, target_url=TARGET_URL) :

    62

        BaseFormatter.__init__(self, template_dir, 'utf-8')

    63

    64

        self.url_prefix = url_prefix

    65

        self.img_url = img_url

    66

        self.target_url = target_url

    67

    68

    def page (self, content) :

    69

        """

    70

            Format page contents

    71

        """

    72

    73

        return self.render('layout', 

    74

                title       = 'MRTG',

    75

                breadcrumb  = '',   # XXX: not supported

    76

                content     = content

    77

        )

    78

    79

    def fmt_img_url (self, style, interval, target) :

    80

        return self.img_url % dict(

    81

            prefix      = self.url_prefix,

    82

            target      = target,

    83

            style       = style,

    84

            interval    = interval,

    85

        )

    86

    87

    def fmt_target_url (self, target) :

    88

        return self.target_url % dict(

    89

            prefix      = self.url_prefix,

    90

            target      = target,

    91

        )

    92

    93

    def overview (self, dirname, targets) :

    94

        """

    95

            Format target listing for given list of (target, title) pairs

    96

        """

    97

    98

        return self.page(self.render('overview', 

    99

            dir                 = dirname,

   100

            overview_subdirs    = '',   # XXX: not supported

   101

            overview_graphs     = '\n'.join(

   102

                self.render('overview-target',

   103

                    title               = title,

   104

                    daily_overview_img  = self.fmt_img_url('overview', 'daily', target),

   105

                    target_url          = self.fmt_target_url(target),

   106

   107

                ) for target, title in targets

   108

            ),

   109

        ))

   110

   111

    def target (self, target, title) :

   112

        """

   113

            Format a specific target

   114

        """

   115

   116

        return self.page(self.render('target',

   117

            title               = title,

   118

            daily_img           = self.fmt_img_url('detail', 'daily', target),

   119

            weekly_img          = self.fmt_img_url('detail', 'weekly', target),

   120

            yearly_img          = self.fmt_img_url('detail', 'yearly', target),

   121

        ))

   122