// file : mod/page.cxx -*- C++ -*- // license : MIT; see accompanying LICENSE file #include #include #include #include #include // hex, uppercase, right #include #include // setw(), setfill() #include // min(), find() #include #include #include #include #include #include #include // build_log_url() #include using namespace std; using namespace xml; using namespace web; using namespace web::xhtml; // Note that in HTML5 the boolean attribute absence represents false value, // true otherwise. If it is present then the value must be empty or // case-insensitively match the attribute's name. // namespace brep { // CSS_LINKS // static const dir_path css_path ("@"); void CSS_LINKS:: operator() (serializer& s) const { s << *LINK(REL="stylesheet", TYPE="text/css", HREF=root_ / css_path / path_); } // DIV_HEADER // void DIV_HEADER:: operator() (serializer& s) const { if (!logo_.empty () || !menu_.empty ()) { s << DIV(ID="header-bar") << DIV(ID="header"); if (!logo_.empty ()) s << DIV(ID="header-logo") << logo_ << ~DIV; if (!menu_.empty ()) { s << DIV(ID="header-menu") << DIV(ID="header-menu-body"); dir_path root (tenant_dir (root_, tenant_)); for (const auto& m: menu_) { const string& l ( m.link[0] == '/' || m.link.find (':') != string::npos ? m.link : root.string () + m.link); s << A(HREF=l) << m.label << ~A; } s << ~DIV << ~DIV; } s << ~DIV << ~DIV; } } // FORM_SEARCH // void FORM_SEARCH:: operator() (serializer& s) const { // The 'action' attribute is optional in HTML5. While the standard doesn't // specify browser behavior explicitly for the case the attribute is // omitted, the only reasonable behavior is to default it to the current // document URL. // s << FORM(ID="search") << TABLE(CLASS="form-table") << TBODY << TR << TD(ID="search-txt") << INPUT(TYPE="search", NAME=name_, VALUE=query_); if (autofocus_) s << AUTOFOCUS(""); s << ~INPUT << ~TD << TD(ID="search-btn") << *INPUT(TYPE="submit", VALUE="Search") << ~TD << ~TR << ~TBODY << ~TABLE << ~FORM; } // DIV_COUNTER // void DIV_COUNTER:: operator() (serializer& s) const { s << DIV(ID="count") << count_ << " " << (count_ % 10 == 1 && count_ % 100 != 11 ? singular_ : plural_) << ~DIV; } // TR_VALUE // void TR_VALUE:: operator() (serializer& s) const { s << TR(CLASS=label_) << TH << label_ << ~TH << TD << SPAN(CLASS="value") << value_ << ~SPAN << ~TD << ~TR; } // TR_INPUT // void TR_INPUT:: operator() (serializer& s) const { s << TR(CLASS=label_) << TH << label_ << ~TH << TD << INPUT(TYPE="text", NAME=name_); if (!value_.empty ()) s << VALUE(value_); if (placeholder_ != nullptr) s << PLACEHOLDER(*placeholder_); if (autofocus_) s << AUTOFOCUS(""); s << ~INPUT << ~TD << ~TR; } // TR_SELECT // void TR_SELECT:: operator() (serializer& s) const { s << TR(CLASS=label_) << TH << label_ << ~TH << TD << SELECT(NAME=name_); for (const auto& o: options_) { s << OPTION(VALUE=o.first); if (o.first == value_) s << SELECTED("selected"); s << o.second << ~OPTION; } s << ~SELECT << ~TD << ~TR; } // TR_TENANT // void TR_TENANT:: operator() (serializer& s) const { s << TR(CLASS="tenant") << TH << name_ << ~TH << TD << SPAN(CLASS="value") << A << HREF << tenant_dir (root_, tenant_) << '?' << service_ << ~HREF << tenant_ << ~A << ~SPAN << ~TD << ~TR; } // TR_NAME // void TR_NAME:: operator() (serializer& s) const { s << TR(CLASS="name") << TH << "name" << ~TH << TD << SPAN(CLASS="value") << A << HREF << tenant_dir (root_, tenant_) / path (mime_url_encode (name_.string (), false)); // Propagate search criteria to the package details page. // if (!query_.empty ()) s << "?q=" << query_; s << ~HREF << name_ << ~A << ~SPAN << ~TD << ~TR; } // TR_VERSION // void TR_VERSION:: operator() (serializer& s) const { s << TR(CLASS="version") << TH << "version" << ~TH << TD << SPAN(CLASS="value"); if (package_ == nullptr) { s << version_; if (upstream_version_ != nullptr) s << " (" << *upstream_version_ << ')'; else if (stub_) s << " (stub)"; } else { assert (root_ != nullptr && tenant_ != nullptr); s << A(HREF=tenant_dir (*root_, *tenant_) / dir_path (mime_url_encode (package_->string (), false)) / path (version_)) << version_ << ~A; if (upstream_version_ != nullptr) s << " (" << *upstream_version_ << ')'; else if (stub_) s << " (stub)"; } s << ~SPAN << ~TD << ~TR; } // TR_PROJECT // void TR_PROJECT:: operator() (serializer& s) const { s << TR(CLASS="project") << TH << "project" << ~TH << TD << SPAN(CLASS="value") << A << HREF << tenant_dir (root_, tenant_) << "?packages=" << mime_url_encode (project_.string ()) << ~HREF << project_ << ~A << ~SPAN << ~TD << ~TR; } // TR_SUMMARY // void TR_SUMMARY:: operator() (serializer& s) const { s << TR(CLASS="summary") << TH << "summary" << ~TH << TD << SPAN(CLASS="value") << summary_ << ~SPAN << ~TD << ~TR; } // TR_LICENSE // void TR_LICENSE:: operator() (serializer& s) const { s << TR(CLASS="license") << TH << "license" << ~TH << TD << SPAN(CLASS="value"); for (const auto& la: licenses_) { if (&la != &licenses_[0]) s << " " << EM << "or" << ~EM << " "; bool m (la.size () > 1); if (m) s << "("; for (const auto& l: la) { if (&l != &la[0]) s << " " << EM << "and" << ~EM << " "; s << l; } if (m) s << ")"; } s << ~SPAN << ~TD << ~TR; } // TR_LICENSES // void TR_LICENSES:: operator() (serializer& s) const { for (const auto& la: licenses_) { s << TR(CLASS="license") << TH << "license" << ~TH << TD << SPAN(CLASS="value"); for (const auto& l: la) { if (&l != &la[0]) s << " " << EM << "and" << ~EM << " "; s << l; } s << ~SPAN << SPAN_COMMENT (la.comment) << ~TD << ~TR; } } // TR_TOPICS // void TR_TOPICS:: operator() (serializer& s) const { // Omit the element if there are no topics. // if (topics_.empty ()) return; s << TR(CLASS="topics") << TH << "topics" << ~TH << TD << SPAN(CLASS="value"); for (const string& t: topics_) { s << A << HREF << tenant_dir (root_, tenant_) << "?packages=" << mime_url_encode (t) << ~HREF << t << ~A; } s << ~SPAN << ~TD << ~TR; } // TR_DEPENDS // void TR_DEPENDS:: operator() (serializer& s) const { s << TR(CLASS="depends") << TH << "depends" << ~TH << TD << SPAN(CLASS="value") << dependencies_.size (); if (!dependencies_.empty ()) s << "; "; for (const dependency_alternatives& das: dependencies_) { if (&das != &dependencies_[0]) s << ", "; if (das.conditional) s << "?"; if (das.buildtime) s << "*"; // Suppress package name duplicates. // set names; for (const dependency_alternative& da: das) { assert (da.size () == 1); // @@ DEP names.emplace (da[0].name); } bool mult (names.size () > 1); if (mult) s << "("; bool first (true); for (const dependency_alternative& da: das) { assert (da.size () == 1); // @@ DEP const dependency& d (da[0]); const package_name& n (d.name); if (names.find (n) != names.end ()) { names.erase (n); if (first) first = false; else s << " | "; // Try to display the dependency as a link if it is resolved. // Otherwise display it as plain text. // if (d.package != nullptr) { shared_ptr p (d.package.load ()); assert (p->internal () || !p->other_repositories.empty ()); shared_ptr r ( p->internal () ? p->internal_repository.load () : p->other_repositories[0].load ()); auto en (mime_url_encode (n.string (), false)); if (r->interface_url) s << A(HREF=*r->interface_url + en) << n << ~A; else if (p->internal ()) s << A(HREF=tenant_dir (root_, tenant_) / path (en)) << n << ~A; else // Display the dependency as plain text if no repository URL // available. // s << n; } else s << n; } } if (mult) s << ")"; } s << ~SPAN << ~TD << ~TR; } // TR_REQUIRES // void TR_REQUIRES:: operator() (serializer& s) const { // If there are no requirements, then we omit it, unlike depends, where we // show 0 explicitly. // if (requirements_.empty ()) return; s << TR(CLASS="requires") << TH << "requires" << ~TH << TD << SPAN(CLASS="value") << requirements_.size () << "; "; for (const auto& ras: requirements_) { if (&ras != &requirements_[0]) s << ", "; if (ras.buildtime) s << '*'; // If this is a simple requirement without id, then print the comment // first word. // if (ras.simple () && ras[0][0].empty ()) { const auto& c (ras.comment); if (!c.empty ()) { if (ras[0].enable) s << "? "; auto n (c.find (' ')); s << string (c, 0, n); if (n != string::npos) s << "..."; } } else { bool mult (ras.size () > 1 || (ras.size () == 1 && ras[0].size () > 1)); if (mult) s << '('; for (const auto& ra: ras) { if (&ra != &ras[0]) s << " | "; for (const string& r: ra) { if (&r != &ra[0]) s << ' '; s << r; } if (ra.enable) s << " ?"; } if (mult) s << ')'; } } s << ~SPAN << ~TD << ~TR; } // TR_URL // void TR_URL:: operator() (serializer& s) const { s << TR(CLASS=label_) << TH << label_ << ~TH << TD << SPAN(CLASS="value"); // Display HTTP(S) URL as link, striping the scheme prefix for the link // text. Display URL with a different scheme as plain text. // if (icasecmp (url_.scheme, "https") == 0 || icasecmp (url_.scheme, "http") == 0) { url u (url_); u.scheme.clear (); s << A(HREF=url_) << u << ~A; } else s << url_; s << ~SPAN << SPAN_COMMENT (url_.comment) << ~TD << ~TR; } // TR_EMAIL // void TR_EMAIL:: operator() (serializer& s) const { s << TR(CLASS=label_) << TH << label_ << ~TH << TD << SPAN(CLASS="value") << A(HREF="mailto:" + email_) << email_ << ~A << ~SPAN << SPAN_COMMENT (email_.comment) << ~TD << ~TR; } // TR_PRIORITY // static const strings priority_names ({"medium", "high", "security"}); void TR_PRIORITY:: operator() (serializer& s) const { // Omit the element for low priority. // if (priority_ == priority::low) return; size_t p (priority_ - 1); assert (p < priority_names.size ()); const string& pn (priority_names[p]); s << TR(CLASS="priority") << TH << "priority" << ~TH << TD << SPAN(CLASS="value " + pn) << pn << ~SPAN << SPAN_COMMENT (priority_.comment) << ~TD << ~TR; } // TR_REPOSITORY // void TR_REPOSITORY:: operator() (serializer& s) const { s << TR(CLASS="repository") << TH << "repository" << ~TH << TD << SPAN(CLASS="value") << A << HREF << tenant_dir (root_, tenant_) << "?about#" << mime_url_encode (html_id (location_.canonical_name ()), false) << ~HREF << location_ << ~A << ~SPAN << ~TD << ~TR; } // TR_LINK // void TR_LINK:: operator() (serializer& s) const { s << TR(CLASS=label_) << TH << label_ << ~TH << TD << SPAN(CLASS="value") << A(HREF=url_) << text_ << ~A << ~SPAN << ~TD << ~TR; } // TR_SHA256SUM // void TR_SHA256SUM:: operator() (serializer& s) const { s << TR(CLASS="sha256") << TH << "sha256" << ~TH << TD << SPAN(CLASS="value") << sha256sum_ << ~SPAN << ~TD << ~TR; } // BUILD_RESULT // void TR_BUILD_RESULT:: operator() (serializer& s) const { s << TR(CLASS="result") << TH << "result" << ~TH << TD << SPAN(CLASS="value"); if (build_.state == build_state::building) s << SPAN(CLASS="building") << "building" << ~SPAN << " | "; else { // If no unsuccessful operation results available, then print the // overall build status. If there are any operation results available, // then also print unsuccessful operation statuses with the links to the // respective logs, followed with a link to the operation's combined // log. Print the forced package rebuild link afterwards, unless the // package build is already pending. // if (build_.results.empty () || *build_.status == result_status::success) { assert (build_.status); s << SPAN_BUILD_RESULT_STATUS (*build_.status) << " | "; } if (!build_.results.empty ()) { for (const auto& r: build_.results) { if (r.status != result_status::success) s << SPAN_BUILD_RESULT_STATUS (r.status) << " (" << A << HREF << build_log_url (host_, root_, build_, &r.operation) << ~HREF << r.operation << ~A << ") | "; } s << A << HREF << build_log_url (host_, root_, build_) << ~HREF << "log" << ~A << " | "; } } if (build_.force == (build_.state == build_state::building ? force_state::forcing : force_state::forced)) s << SPAN(CLASS="pending") << "pending" << ~SPAN; else s << A << HREF << build_force_url (host_, root_, build_) << ~HREF << "rebuild" << ~A; s << ~SPAN << ~TD << ~TR; } // SPAN_COMMENT // void SPAN_COMMENT:: operator() (serializer& s) const { if (size_t l = comment_.size ()) s << SPAN(CLASS="comment") << (comment_.back () == '.' ? string (comment_, 0, l - 1) : comment_) << ~SPAN; } // SPAN_BUILD_RESULT_STATUS // void SPAN_BUILD_RESULT_STATUS:: operator() (serializer& s) const { s << SPAN(CLASS=to_string (status_)) << status_ << ~SPAN; } // P_TEXT // void P_TEXT:: operator() (serializer& s) const { if (text_.empty ()) return; size_t n (text_.find_first_of (" \t\n", length_)); bool full (n == string::npos); // Text length is below the limit. // Truncate the text if length exceeds the limit. // const string& t (full ? text_ : string (text_, 0, n)); // Format the text into paragraphs, recognizing a blank line as paragraph // separator, and replacing single newlines with a space. // s << P; if (!id_.empty ()) s << ID(id_); bool nl (false); // The previous character is '\n'. for (const char& c: t) { if (c == '\n') { if (nl) { s << ~P << P; nl = false; } else nl = true; // Delay printing until the next character. } else { if (nl) { s << ' '; // Replace the previous newline with a space. nl = false; } s << c; } } if (!full) { assert (url_ != nullptr); s << "... " << A(HREF=*url_) << "More" << ~A; } s << ~P; } // PRE_TEXT // static void serialize_pre_text (serializer& s, const string& text, size_t length, const string* url, const string& id) { if (text.empty ()) return; size_t n (text.find_first_of (" \t\n", length)); bool full (n == string::npos); // Text length is below the limit. // Truncate the text if length exceeds the limit. // const string& t (full ? text : string (text, 0, n)); s << PRE; if (!id.empty ()) s << ID(id); s << t; if (!full) { assert (url != nullptr); s << "... " << A(HREF=*url) << "More" << ~A; } s << ~PRE; } void PRE_TEXT:: operator() (serializer& s) const { serialize_pre_text (s, text_, length_, url_, id_); } // DIV_TEXT // void DIV_TEXT:: operator() (serializer& s) const { switch (type_) { case text_type::plain: { // To keep things regular we wrap the preformatted text into
. // s << DIV(ID=id_, CLASS="plain"); serialize_pre_text (s, text_, length_, url_, "" /* id */); s << ~DIV; break; } case text_type::common_mark: case text_type::github_mark: { // Convert Markdown into XHTML wrapping it into the
element. // auto print_error = [&s, this] (const string& e) { s << DIV(ID=id_, CLASS="markdown") << SPAN(CLASS="error") << e << ~SPAN << ~DIV; }; // Note that the only possible reason for the following cmark API // calls to fail is the inability to allocate memory. Unfortunately, // instead of reporting the failure to the caller, the API issues // diagnostics to stderr and aborts the process. Let's decrease the // probability of such an event by limiting the text size to 64K. // if (text_.size () > 64 * 1024) { print_error (what_ + " is too long"); return; } string html; { char* r; { // Parse Markdown into the AST. // // Note that the footnotes extension needs to be enabled via the // CMARK_OPT_FOOTNOTES flag rather than the // cmark_parser_attach_syntax_extension() function call. // unique_ptr parser ( cmark_parser_new (CMARK_OPT_DEFAULT | CMARK_OPT_FOOTNOTES | CMARK_OPT_VALIDATE_UTF8), [] (cmark_parser* p) {cmark_parser_free (p);}); // Enable GitHub extensions in the parser, if requested. // if (type_ == text_type::github_mark) { auto add = [&parser] (const char* ext) { cmark_syntax_extension* e ( cmark_find_syntax_extension (ext)); // Built-in extension is only expected. // assert (e != nullptr); cmark_parser_attach_syntax_extension (parser.get (), e); }; add ("table"); add ("strikethrough"); add ("autolink"); } cmark_parser_feed (parser.get (), text_.c_str (), text_.size ()); unique_ptr doc ( cmark_parser_finish (parser.get ()), [] (cmark_node* n) {cmark_node_free (n);}); // Strip the document "title". // if (strip_title_) { cmark_node* child (cmark_node_first_child (doc.get ())); if (child != nullptr && cmark_node_get_type (child) == CMARK_NODE_HEADING && cmark_node_get_heading_level (child) == 1) { cmark_node_unlink (child); cmark_node_free (child); } } // Render the AST into an XHTML fragment. // // Note that unlike GitHub we follow the default API behavior and // don't allow the raw HTML in Markdown (omitting the // CMARK_OPT_UNSAFE flag). This way we can assume the rendered // HTML is a well-formed XHTML fragment, which we rely upon for // truncation (see below). Note that by default the renderer // suppresses any HTML-alike markup and unsafe URLs (javascript:, // etc). // r = cmark_render_html (doc.get (), CMARK_OPT_DEFAULT, nullptr /* extensions */); } unique_ptr deleter ( r, [] (char* s) {cmark_get_default_mem_allocator ()->free (s);}); html = r; } // From the CommonMark Spec it follows that the resulting HTML can be // assumed a well-formed XHTML fragment with all the elements having // closing tags. But let's not assume this being the case (due to some // library bug or similar) and handle the xml::parsing exception. // try { fragment f (html, "gfm-html", url_ == nullptr ? 0 : length_); s << DIV(ID=id_, CLASS="markdown"); // Disable indentation not to introduce unwanted spaces. // s.suspend_indentation (); s << f; s.resume_indentation (); if (f.truncated) s << DIV(CLASS="more") << "... " << A(HREF=*url_) << "More" << ~A << ~DIV; s << ~DIV; } catch (const xml::parsing& e) { string error ("unable to parse " + what_ + " XHTML fragment: " + e.what ()); diag_ << error; print_error (error); } break; } } } // DIV_PAGER // DIV_PAGER:: DIV_PAGER (size_t current_page, size_t item_count, size_t item_per_page, size_t page_number_count, const string& url) : current_page_ (current_page), item_count_ (item_count), item_per_page_ (item_per_page), page_number_count_ (page_number_count), url_ (url) { } void DIV_PAGER:: operator() (serializer& s) const { if (item_count_ == 0 || item_per_page_ == 0) return; size_t pcount (item_count_ / item_per_page_); // Page count. if (item_count_ % item_per_page_) ++pcount; if (pcount > 1) { auto url ( [this](size_t page) -> string { return page == 0 ? url_ : url_ + (url_.find ('?') == string::npos ? "?p=" : "&p=") + to_string (page); }); s << DIV(ID="pager"); if (current_page_ > 0) s << A(ID="prev", HREF=url (current_page_ - 1)) << "Prev" << ~A; if (page_number_count_) { size_t offset (page_number_count_ / 2); size_t from (current_page_ > offset ? current_page_ - offset : 0); size_t to (min (from + page_number_count_, pcount)); // Display as many pages as allowed. // if (to - from < page_number_count_ && from > 0) from -= min (from, page_number_count_ - (to - from)); for (size_t p (from); p < to; ++p) { s << A(HREF=url (p)); if (p == current_page_) s << ID("curr"); s << p + 1 << ~A; } } if (current_page_ < pcount - 1) s << A(ID="next", HREF=url (current_page_ + 1)) << "Next" << ~A; s << ~DIV; } } // Convert the argument to a string conformant to the section // "3.2.5.1 The id attribute" of the HTML 5 specification at // http://www.w3.org/TR/html5/dom.html#the-id-attribute. // string html_id (const string& v) { ostringstream o; o << hex << uppercase << right << setfill ('0'); // Replace space characters (as specified at // http://www.w3.org/TR/html5/infrastructure.html#space-character) with // the respective escape sequences. // for (auto c: v) { switch (c) { case ' ': case '\t': case '\n': case '\r': case '\f': case '~': { // We use '~' as an escape character because it doesn't require // escaping in URLs. // o << "~" << setw (2) << static_cast (c); break; } default: o << c; break; } } return o.str (); } }