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blog.go
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blog.go
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package main
import (
"database/sql"
"fmt"
"log"
"net/http"
"os"
ini "github.com/Unknwon/goconfig"
"github.com/gorilla/mux"
"github.com/gorilla/sessions"
)
type blog struct {
DB *sql.DB
cfg *ini.ConfigFile
blogTitle string
blogDescription string
authorName string
authorEmail string
authorUsername string
secret string
sessionName string
theme string
port string
databaseFilename string
store *sessions.CookieStore
router *mux.Router
}
func (b *blog) loadConfig(configFile string) {
cfg, err := ini.LoadConfigFile(configFile)
if err != nil {
log.Fatal(err)
}
b.authorName, err = cfg.GetValue("author", "name")
if err != nil {
log.Fatal(err)
}
b.authorEmail, err = cfg.GetValue("author", "email")
if err != nil {
log.Fatal(err)
}
b.authorUsername, err = cfg.GetValue("author", "username")
if err != nil {
log.Fatal(err)
}
b.blogTitle, err = cfg.GetValue("blog", "title")
if err != nil {
log.Fatal(err)
}
b.blogDescription, err = cfg.GetValue("blog", "description")
if err != nil {
log.Fatal(err)
}
b.secret, err = cfg.GetValue("blog", "secret")
if err != nil {
log.Fatal(err)
}
if b.secret == "something-very-secret" {
err := fmt.Errorf("Please, change the parameter 'secret' value to something different than it's default value (something-very-secret)")
log.Fatal(err)
}
b.sessionName, err = cfg.GetValue("blog", "session-name")
if err != nil {
log.Fatal(err)
}
if b.sessionName == "blog-session" {
err := fmt.Errorf("Please, change the parameter 'session-name' value to something different than it's default value (blog-session)")
log.Fatal(err)
}
b.theme, err = cfg.GetValue("blog", "theme")
if err != nil {
log.Fatal(err)
}
b.port, err = cfg.GetValue("blog", "port")
if err != nil {
log.Fatal(err)
}
b.databaseFilename, err = cfg.GetValue("blog", "database-filename")
if err != nil {
log.Fatal(err)
}
_, errCheckExists := os.Stat("./" + b.databaseFilename)
db, err := sql.Open("sqlite3", "./"+b.databaseFilename)
if err != nil {
log.Fatal(err)
}
b.DB = db
if os.IsNotExist(errCheckExists) {
log.Printf("File blog.db not exists. \nCreating initial database.\n")
sqlCreateDB := `
create table posts (id integer not null primary key, title text, src_content text, html_content text, short_description text, date datetime);
`
_, err = db.Exec(sqlCreateDB)
if err != nil {
log.Printf("%q: %s\n", err, sqlCreateDB)
return
}
log.Printf("Initial database created.\n")
}
}
func (b *blog) start() {
b.router = mux.NewRouter()
b.store = sessions.NewCookieStore([]byte(b.secret))
b.router.HandleFunc("/", b.indexPageHandler).Methods("GET")
b.router.HandleFunc("/admin", b.loginPageHandler).Methods("GET")
b.router.HandleFunc("/login", b.loginHandler).Methods("POST")
b.router.HandleFunc("/logout", b.logoutHandler).Methods("POST", "GET")
b.router.HandleFunc("/post.html", b.viewPostHandler).Methods("GET")
b.router.HandleFunc("/edit.html", b.editPostHandler).Methods("GET")
b.router.HandleFunc("/save", b.savePostHandler).Methods("POST")
b.router.HandleFunc("/delete", b.deletePostHandler).Methods("GET")
b.router.HandleFunc("/{custom}", b.customHandler).Methods("GET")
b.router.PathPrefix("/assets/").Handler(http.StripPrefix("/assets/", http.FileServer(http.Dir(wd+"/skins/"+b.theme+"/assets"))))
b.router.PathPrefix("/common_assets/").Handler(http.StripPrefix("/common_assets/", http.FileServer(http.Dir(wd+"/common_assets"))))
http.ListenAndServe(":"+b.port, b.router)
}
var editor = `
<div id="anchor">
</div>
<div id="post-editor" title="Post editor" >
<div style="height:100%">
<form id="form" method="POST" action="save" style="height:100%">
<input type="text" name="title" id="input_title" value="{{.Title}}" placeholder="Title" style="width:100%; margin:5px 0px"/>
<input type="text" name="short_description" id="input_short_description" value="{{.ShortDescription}}" placeholder="Short Decription" style="width:100%; margin-bottom:5px"/>
<div style="margin-bottom:5px">
<button style="padding-bottom: 6px;padding-left: 12px;padding-right: 12px;padding-top: 6px;" id="btnMD_bold" type="button" class="btn btn-default" aria-label="Bold" title="Bold">
<span class="fa fa-bold fa-fw" aria-hidden="true"/>
</button>
<button style="padding-bottom: 6px;padding-left: 12px;padding-right: 12px;padding-top: 6px;" id="btnMD_italic" type="button" class="btn btn-default" aria-label="Italic" title="Italic">
<span class="fa fa-italic fa-fw" aria-hidden="true"/>
</button>
<button style="padding-bottom: 6px;padding-left: 12px;padding-right: 12px;padding-top: 6px;" id="btnMD_H1" type="button" class="btn btn-default" aria-label="Header 1" title="Header 1">
<span class="fa fa-header fa-fw" aria-hidden="true"/>1
</button>
<button style="padding-bottom: 6px;padding-left: 12px;padding-right: 12px;padding-top: 6px;" id="btnMD_H2" type="button" class="btn btn-default" aria-label="Header 2" title="Header 2">
<span class="fa fa-header fa-fw" aria-hidden="true"/>2
</button>
<button style="padding-bottom: 6px;padding-left: 12px;padding-right: 12px;padding-top: 6px;" id="btnMD_H3" type="button" class="btn btn-default" aria-label="Header 3" title="Header 3">
<span class="fa fa-header fa-fw" aria-hidden="true"/>3
</button>
<button style="padding-bottom: 6px;padding-left: 12px;padding-right: 12px;padding-top: 6px;" id="btnMD_image" type="button" class="btn btn-default" aria-label="Image" title="Image">
<span class="fa fa-photo fa-fw" aria-hidden="true"/>
</button>
<button style="padding-bottom: 6px;padding-left: 12px;padding-right: 12px;padding-top: 6px;" id="btnMD_hyperlink" type="button" class="btn btn-default" aria-label="Hyperlink" title="Hyperlink">
<span class="fa fa-link fa-fw" aria-hidden="true"/>
</button>
<button style="padding-bottom: 6px;padding-left: 12px;padding-right: 12px;padding-top: 6px;" id="btnMD_quote" type="button" class="btn btn-default" aria-label="Quote" title="Quote">
<span class="fa fa-quote-left fa-fw" aria-hidden="true"/>
</button>
<button style="padding-bottom: 6px;padding-left: 12px;padding-right: 12px;padding-top: 6px;" id="btnMD_list" type="button" class="btn btn-default" aria-label="List" title="List">
<span class="fa fa-list-ul fa-fw" aria-hidden="true"/>
</button>
<button style="padding-bottom: 6px;padding-left: 12px;padding-right: 12px;padding-top: 6px;" id="btnMD_orderedlist" type="button" class="btn btn-default" aria-label="Ordered List" title="Ordered List">
<span class="fa fa-list-ol fa-fw" aria-hidden="true"/>
</button>
<button style="padding-bottom: 6px;padding-left: 12px;padding-right: 12px;padding-top: 6px;" id="btnMD_code" type="button" class="btn btn-default" aria-label="Code" title="Code">
<span class="fa fa-code fa-fw" aria-hidden="true"/>
</button>
<button style="padding-bottom: 6px;padding-left: 12px;padding-right: 12px;padding-top: 6px;" id="btnMD_linebreak" type="button" class="btn btn-default" aria-label="Horizontal Line" title="Horizontal Line">
<span class="fa fa-ellipsis-h fa-fw" aria-hidden="true"/>
</button>
</div>
<textarea name="src_content" id="src" style="width:100%; height:90%; font-family:Consolas,Monaco,Lucida Console,Liberation Mono,DejaVu Sans Mono,Bitstream Vera Sans Mono,Courier New, monospace;">{{.Content}}</textarea>
<input type="hidden" name="id" value="{{.ID}}"/>
<input type="hidden" id="html_content" name="html_content" value=""/>
</form>
</div>
</div>`