1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
|
// file : mod/mod-packages.cxx -*- C++ -*-
// copyright : Copyright (c) 2014-2018 Code Synthesis Ltd
// license : MIT; see accompanying LICENSE file
#include <mod/mod-packages.hxx>
#include <libstudxml/serializer.hxx>
#include <odb/session.hxx>
#include <odb/database.hxx>
#include <odb/transaction.hxx>
#include <odb/schema-catalog.hxx>
#include <web/xhtml.hxx>
#include <web/module.hxx>
#include <web/mime-url-encoding.hxx>
#include <libbrep/package.hxx>
#include <libbrep/package-odb.hxx>
#include <mod/page.hxx>
#include <mod/options.hxx>
using namespace odb::core;
using namespace brep::cli;
// While currently the user-defined copy constructor is not required (we don't
// need to deep copy nullptr's), it is a good idea to keep the placeholder
// ready for less trivial cases.
//
brep::packages::
packages (const packages& r)
: database_module (r),
options_ (r.initialized_ ? r.options_ : nullptr)
{
}
void brep::packages::
init (scanner& s)
{
HANDLER_DIAG;
options_ = make_shared<options::packages> (
s, unknown_mode::fail, unknown_mode::fail);
database_module::init (*options_, options_->package_db_retry ());
if (options_->root ().empty ())
options_->root (dir_path ("/"));
// Check that the database 'package' schema matches the current one. It's
// enough to perform the check in just a single module implementation (and we
// don't do in the dispatcher because it doesn't use the database).
//
// Note that the failure can be reported by each web server worker process.
// While it could be tempting to move the check to the
// repository_root::version() function, it would be wrong. The function can
// be called by a different process (usually the web server root one) not
// having the proper permissions to access the database.
//
const string ds ("package");
if (schema_catalog::current_version (*package_db_, ds) !=
package_db_->schema_version (ds))
fail << "database 'package' schema differs from the current one (module "
<< BREP_VERSION_ID << ")";
}
template <typename T>
static inline query<T>
search_param (const brep::string& q, const brep::string& t)
{
using query = query<T>;
return "(" +
(q.empty ()
? query ("NULL")
: "plainto_tsquery (" + query::_val (q) + ")") +
"," +
query::_val (t) +
")";
}
bool brep::packages::
handle (request& rq, response& rs)
{
using namespace web::xhtml;
HANDLER_DIAG;
const size_t res_page (options_->search_results ());
const dir_path& root (options_->root ());
const string& title (options_->search_title ());
params::packages params;
try
{
name_value_scanner s (rq.parameters (8 * 1024));
params = params::packages (s, unknown_mode::fail, unknown_mode::fail);
}
catch (const cli::exception& e)
{
throw invalid_request (400, e.what ());
}
size_t page (params.page ());
const string& squery (params.q ());
string equery (web::mime_url_encode (squery));
xml::serializer s (rs.content (), title);
s << HTML
<< HEAD
<< TITLE
<< title;
if (!squery.empty ())
s << " " << squery;
s << ~TITLE
<< CSS_LINKS (path ("packages.css"), root)
//
// This hack is required to avoid the "flash of unstyled content", which
// happens due to the presence of the autofocus attribute in the input
// element of the search form. The problem appears in Firefox and has a
// (4-year old, at the time of this writing) bug report:
//
// https://bugzilla.mozilla.org/show_bug.cgi?id=712130
//
// @@ An update: claimed to be fixed in Firefox 60 that is released in
// May 2018. Is it time to cleanup? Remember to cleanup in all places.
//
<< SCRIPT << " " << ~SCRIPT
<< ~HEAD
<< BODY
<< DIV_HEADER (options_->logo (), options_->menu (), root, tenant)
<< DIV(ID="content");
session sn;
transaction t (package_db_->begin ());
auto pkg_count (
package_db_->query_value<latest_package_count> (
search_param<latest_package_count> (squery, tenant)));
s << FORM_SEARCH (squery, "packages")
<< DIV_COUNTER (pkg_count, "Package", "Packages");
// Enclose the subsequent tables to be able to use nth-child CSS selector.
//
// @@ TENANT: use tenant for sorting when add support for global view.
//
s << DIV;
for (const auto& pr:
package_db_->query<latest_package_search_rank> (
search_param<latest_package_search_rank> (squery, tenant) +
"ORDER BY rank DESC, name" +
"OFFSET" + to_string (page * res_page) +
"LIMIT" + to_string (res_page)))
{
shared_ptr<package> p (package_db_->load<package> (pr.id));
s << TABLE(CLASS="proplist package")
<< TBODY
<< TR_NAME (p->name, equery, root, tenant)
<< TR_SUMMARY (p->summary)
<< TR_LICENSE (p->license_alternatives)
<< TR_TAGS (p->project, p->tags, root, tenant)
<< TR_DEPENDS (p->dependencies, root, tenant)
<< TR_REQUIRES (p->requirements)
<< ~TBODY
<< ~TABLE;
}
s << ~DIV;
t.commit ();
string url (tenant_dir (root, tenant).string () + "?packages");
if (!equery.empty ())
{
url += '=';
url += equery;
}
s << DIV_PAGER (page,
pkg_count,
res_page,
options_->search_pages (),
url)
<< ~DIV
<< ~BODY
<< ~HTML;
return true;
}
|
