Add [cmd:permissions]

handlers/handler.cpp

@@ -98,7 +98,10 @@ Response Handler::handle(const Request &r)
 
 Permissions Handler::effectivePermissions(std::string page)
 {
-	return this->database->createPermissionsDao()
-		->find(page, this->userSession->user.login)
-		.value_or(this->userSession->user.permissions);
+	Permissions &userPerms = this->userSession->user.permissions;
+	if(userPerms.isAdmin())
+	{
+		return userPerms;
+	}
+	return this->database->createPermissionsDao()->find(page, this->userSession->user.login).value_or(userPerms);
 }

handlers/handlerpageedit.cpp

@@ -24,6 +24,7 @@ SOFTWARE.
 
 #include "../parser.h"
 #include "../revisionrenderer.h"
+
 bool HandlerPageEdit::canAccess([[maybe_unused]] std::string page)
 {
 	return effectivePermissions(page).canEdit();
@@ -56,7 +57,8 @@ Response HandlerPageEdit::handleRequest(PageDao &pageDao, std::string pagename,
 	{
 		if(!effectivePermissions(from).canRead())
 		{
-			return this->errorResponse("Permission denied", "No access permissions, so you can't use this page as a template");
+			return this->errorResponse("Permission denied",
+									   "No access permissions, so you can't use this page as a template");
 		}
 		body = revisiondao->getCurrentForPage(from)->content;
 	}
@@ -77,6 +79,7 @@ Response HandlerPageEdit::handleRequest(PageDao &pageDao, std::string pagename,
 				std::string visiblecmd = parser.extractCommand("visible", newContent);
 				std::string rename = parser.extractCommand("rename", newContent);
 				std::string customtitle = parser.extractCommand("pagetitle", newContent);
+				std::vector<std::string> perms = parser.extractCommands("permissions", newContent);
 				Page page;
 				std::optional<Page> currentPage = pageDao.find(pagename);
 				if(currentPage)
@@ -91,6 +94,33 @@ Response HandlerPageEdit::handleRequest(PageDao &pageDao, std::string pagename,
 					}
 					pagename = rename;
 				}
+
+				for(const std::string &perm : perms)
+				{
+					auto splitted = utils::split(perm, '|');
+					if(splitted.size() != 2)
+					{
+						return this->errorResponse("Invalid command", "permissions command is misformated");
+					}
+					auto permissionDao = this->database->createPermissionsDao();
+					auto currentPermission = permissionDao->find(pagename, splitted[0]);
+
+					Permissions newPermissions = Permissions{splitted[1]};
+					if(!currentPermission || newPermissions != currentPermission.value())
+					{
+						if(this->userSession->user.permissions.canSetPagePerms())
+						{
+							permissionDao->save(pagename, splitted[0], newPermissions);
+						}
+						else
+						{
+							this->database->rollbackTransaction();
+							return errorResponse("Invalid permissions",
+												 "You don't have permission to change page permissions");
+						}
+					}
+				}
+
 				page.current_revision = current_revision;
 				page.listed = !(visiblecmd == "0");
 				page.name = pagename;
@@ -130,7 +160,7 @@ Response HandlerPageEdit::handleRequest(PageDao &pageDao, std::string pagename,
 			TemplatePage templatePage = this->templ->getPage("page_creation_preview");
 			templatePage.setVar("actionurl", urlProvider->editPage(pagename));
 
-			RevisionRenderer revisionRenderer { *this->templ, *this->database, *this->urlProvider };
+			RevisionRenderer revisionRenderer{*this->templ, *this->database, *this->urlProvider, *this->userSession};
 
 			templatePage.setVar("preview_content", revisionRenderer.renderContent(newContent));
 			templatePage.setVar("content", newContent);

iparser.h

@@ -16,6 +16,8 @@ class IParser
 
   public:
 	virtual std::string extractCommand(std::string cmdname, const std::string &content) const = 0;
+	virtual std::vector<std::string> extractCommands(std::string cmdname, const std::string &content) const = 0;
+
 	virtual std::vector<Headline> extractHeadlines(const std::string &content) const = 0;
 	virtual inline std::string parse(const PageDao &pagedao, UrlProvider &provider, const std::string &content) const
 	{

parser.cpp

@@ -82,6 +82,28 @@ std::string Parser::extractCommand(std::string cmdname, const std::string &conte
 	}
 	return "";
 }
+
+std::vector<std::string> Parser::extractCommands(std::string cmdname, const std::string &content) const
+{
+	std::vector<std::string> result;
+
+	std::string cmd = "[cmd:" + cmdname + "]";
+	std::string cmdend = "[/cmd:" + cmdname + "]";
+
+	std::string_view view = content;
+	size_t pos = 0;
+	while((pos = view.find(cmd)) != std::string::npos)
+	{
+		view.remove_prefix(pos);
+		view.remove_prefix(cmd.size());
+		if((pos = view.find(cmdend)) != std::string::npos)
+		{
+			result.emplace_back(view.substr(0, pos));
+		}
+	}
+	return result;
+}
+
 std::string Parser::processLink(const PageDao &pageDao, UrlProvider &urlProvider, std::smatch &match) const
 {
 	std::string linktag = match.str(1);
@@ -148,7 +170,7 @@ std::string Parser::parse(const PageDao &pagedao, UrlProvider &provider, const s
 	std::string result;
 	// we don't care about commands, but we nevertheless replace them with empty strings
 	std::regex tagfinder(
-		R"(\[(b|i|u|s|li||ul|ol|code|blockquote|img|link|wikilink|h\d|cmd:visible|cmd:rename|cmd:redirect|cmd:pagetitle|cmd:allowinclude|category|dynamic:postlist|dynamic:includepage|dynamic:getvar|dynamic:setvar)*?\]((\s|\S)*?)\[/\1])");
+		R"(\[(b|i|u|s|li||ul|ol|code|blockquote|img|link|wikilink|h\d|cmd:visible|cmd:rename|cmd:redirect|cmd:pagetitle|cmd:allowinclude|cmd:permissions|category|dynamic:postlist|dynamic:includepage|dynamic:getvar|dynamic:setvar)*?\]((\s|\S)*?)\[/\1])");
 	result = utils::regex_callback_replacer(
 		tagfinder, content,
 		[&](std::smatch &match)
@@ -180,7 +202,7 @@ std::string Parser::parse(const PageDao &pagedao, UrlProvider &provider, const s
 			}
 			if(tag == "code" || tag == "blockquote")
 			{
-				return "<pre><" + tag + ">"+ utils::strreplace(content, "\r\n", "\n") + "</"+tag+"></pre>";
+				return "<pre><" + tag + ">" + utils::strreplace(content, "\r\n", "\n") + "</" + tag + "></pre>";
 			}
 			return callback(tag, content);
 		});

parser.h

@@ -9,7 +9,8 @@ class Parser : public IParser
 	std::string processImage(std::smatch &match) const;
 
   public:
-	std::string extractCommand(std::string cmdname, const std::string &content) const;
+	std::string extractCommand(std::string cmdname, const std::string &content) const override;
+	std::vector<std::string> extractCommands(std::string cmdname, const std::string &content) const override;
 	std::vector<Headline> extractHeadlines(const std::string &content) const override;
 	std::vector<std::string> extractCategories(const std::string &content) const override;
 	using IParser::parse;

permissions.cpp

@@ -20,7 +20,8 @@ SOFTWARE.
 */
 #include "permissions.h"
 
-static const std::map<std::string, int> permmap = {{"can_read", PERM_CAN_READ},
+static const std::map<std::string, int> permmap = {{"can_nothing", PERM_CAN_NOTHING},
+												   {"can_read", PERM_CAN_READ},
 												   {"can_edit", PERM_CAN_EDIT},
 												   {"can_page_history", PERM_CAN_PAGE_HISTORY},
 												   {"can_global_history", PERM_CAN_GLOBAL_HISTORY},
@@ -29,7 +30,8 @@ static const std::map<std::string, int> permmap = {{"can_read", PERM_CAN_READ},
 												   {"can_create", PERM_CAN_CREATE},
 												   {"can_see_category_list", PERM_CAN_SEE_CATEGORY_LIST},
 												   {"can_see_links_here", PERM_CAN_SEE_LINKS_HERE},
-												   {"can_search", PERM_CAN_SEARCH}};
+												   {"can_search", PERM_CAN_SEARCH},
+												   {"can_set_page_perms", PERM_CAN_SET_PAGE_PERMS}};
 
 Permissions::Permissions(int permissions)
 {

permissions.h

@@ -1,6 +1,7 @@
 #ifndef PERMISSIONS_H
 #define PERMISSIONS_H
 
+#define PERM_CAN_NOTHING 0
 #define PERM_CAN_READ 1 << 0
 #define PERM_CAN_EDIT 1 << 1
 #define PERM_CAN_PAGE_HISTORY 1 << 2
@@ -11,6 +12,8 @@
 #define PERM_CAN_SEE_CATEGORY_LIST 1 << 7
 #define PERM_CAN_SEE_LINKS_HERE 1 << 8
 #define PERM_CAN_SEARCH 1 << 9
+#define PERM_CAN_SET_PAGE_PERMS 1 << 10
+#define PERM_IS_ADMIN (1L<<31)-1
 
 #include <string>
 #include <map>
@@ -54,10 +57,16 @@ class Permissions
 		return this->permissions;
 	}
 
+	bool canNothing() const
+	{
+		return this->permissions == PERM_CAN_NOTHING;
+	}
+
 	bool canRead() const
 	{
 		return this->permissions & PERM_CAN_READ;
 	}
+
 	bool canEdit() const
 	{
 		return this->permissions & PERM_CAN_EDIT;
@@ -95,12 +104,27 @@ class Permissions
 		return this->permissions & PERM_CAN_SEE_PAGE_LIST;
 	}
 
+	bool canSetPagePerms() const
+	{
+		return this->permissions & PERM_CAN_SET_PAGE_PERMS;
+	}
+
+	bool isAdmin() const
+	{
+		return this->permissions == PERM_IS_ADMIN;
+	}
+
 	std::string toString() const
 	{
 		return Permissions::toString(this->permissions);
 	}
 
 	static std::string toString(int perms);
+
+	bool operator==(const Permissions &o) const
+	{
+		return this->permissions == o.permissions;
+	}
 };
 
 #endif // PERMISSIONS_H