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-rw-r--r--blog/sbs_2/cgi-src/cgiutils.hpp245
-rwxr-xr-xblog/sbs_2/cgi-src/get-archive-listbin0 -> 515680 bytes
-rw-r--r--blog/sbs_2/cgi-src/get-archive-list.cpp200
-rwxr-xr-xblog/sbs_2/cgi-src/get-post-contentbin0 -> 39024 bytes
-rw-r--r--blog/sbs_2/cgi-src/get-post-content.cpp83
5 files changed, 528 insertions, 0 deletions
diff --git a/blog/sbs_2/cgi-src/cgiutils.hpp b/blog/sbs_2/cgi-src/cgiutils.hpp
new file mode 100644
index 0000000..3eca4dc
--- /dev/null
+++ b/blog/sbs_2/cgi-src/cgiutils.hpp
@@ -0,0 +1,245 @@
+/*
+ * Copyright 2017 Chris Xiong
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining
+ * a copy of this software and associated documentation files (the
+ * "Software"), to deal in the Software without restriction, including
+ * without limitation the rights to use, copy, modify, merge, publish,
+ * distribute, sublicense, and/or sell copies of the Software, and to
+ * permit persons to whom the Software is furnished to do so, subject to
+ * the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be
+ * included in all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
+ * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
+ * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
+ * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS
+ * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
+ * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
+ * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+ * SOFTWARE.
+ */
+#ifndef CGILIB_HPP
+#define CGILIB_HPP
+#include <cstdlib>
+#include <map>
+#include <string>
+#include <vector>
+const char* base64_table="ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789+/=";
+std::string base64_encode(std::string s)
+{
+ std::string r="";
+ for(unsigned i=0;i<s.length();i+=3)
+ {
+ int b=(s[i]&0xFC)>>2;
+ r+=base64_table[b];
+ b=(s[i]&0x03)<<4;
+ if(i+1<s.length())
+ {
+ b|=(s[i+1]&0xF0)>>4;
+ r+=base64_table[b];
+ b=(s[i+1]&0x0F)<<2;
+ if(i+2<s.length())
+ {
+ b|=(s[i+2]&0xC0)>>6;
+ r+=base64_table[b];
+ b=s[i+2]&0x3F;
+ r+=base64_table[b];
+ }else r+=base64_table[b],r+='=';
+ }else r+=base64_table[b],r+="==";
+ }
+ return r;
+}
+void split(std::string s,char c,std::vector<std::string>& v)
+{
+ v.clear();
+ for(size_t anch=0;;)
+ {
+ std::string sec;
+ if(s.find(c,anch)==std::string::npos)
+ sec=s.substr(anch);
+ else sec=s.substr(anch,s.find(c,anch)-anch);
+ v.push_back(sec);
+ if(s.find(c,anch)==std::string::npos)break;
+ anch=s.find(c,anch)+1;
+ }
+}
+std::string trim(std::string s)
+{
+ int l=0;for(;isblank(s[l]);++l)
+ s=s.substr(l);
+ while(isblank(s.back()))s.pop_back();
+ return s;
+}
+class QueryStrParser
+{
+ private:
+ std::map<std::string,std::string> q;
+ void parse(std::string es)
+ {
+ for(size_t anch=0;;)
+ {
+ std::string sec;
+ if(es.find('&',anch)==std::string::npos)
+ sec=es.substr(anch);
+ else sec=es.substr(anch,es.find('&',anch)-anch);
+ if(sec.find('=')==std::string::npos)
+ q[sec.substr(0)]="";
+ else
+ q[sec.substr(0,sec.find('='))]=sec.substr(sec.find('=')+1);
+ if(es.find('&',anch)==std::string::npos)break;
+ anch=es.find('&',anch)+1;
+ }
+ }
+ public:
+ QueryStrParser()
+ {
+ char* e=getenv("QUERY_STRING");
+ if(!e)return;
+ parse(std::string(e));
+ }
+ QueryStrParser(std::string s)
+ {
+ parse(s);
+ }
+ bool exist(std::string s)
+ {
+ return q.find(s)!=q.end();
+ }
+ std::string value(std::string s)
+ {
+ if(!exist(s))return "";
+ return q.find(s)->second;
+ }
+};
+class RequestCookies
+{
+ private:
+ std::map<std::string,std::string> m;
+ void parse(std::string cookie)
+ {
+ std::vector<std::string> v;
+ split(cookie,';',v);
+ }
+ public:
+ RequestCookies()
+ {
+ char* e=getenv("HTTP_COOKIE");
+ if(!e)return;
+ parse(std::string(e));
+ }
+};
+class DOMAttrib
+{
+ private:
+ std::map<std::string,std::string> m;
+ public:
+ DOMAttrib(std::string s="")
+ {
+ for(size_t anch=0;;)
+ {
+ std::string sec;
+ if(s.find('"',anch)==std::string::npos)
+ sec=s.substr(anch);
+ else sec=s.substr(anch,s.find('"',s.find('"',anch)+1)-anch+1);
+ if(sec.find('=')==std::string::npos)
+ m[sec.substr(0)]="";
+ else
+ m[sec.substr(0,sec.find('='))]=sec.substr(sec.find('=')+2),
+ m[sec.substr(0,sec.find('='))].pop_back();
+ if(s.find(' ',anch+sec.length())==std::string::npos)break;
+ anch=s.find(' ',anch+sec.length())+1;
+ }
+ }
+ void setAttrib(std::string a,std::string v){m[a]=v;}
+ void eraseAttrib(std::string a){if(existAttrib(a))m.erase(m.find(a));}
+ bool existAttrib(std::string a){return m.find(a)!=m.end();}
+ std::string getAttrib(std::string a){if(!existAttrib(a))return "";return m[a];}
+ std::string to_string()
+ {
+ std::string r;bool cf=false;
+ for(auto i=m.begin();i!=m.end();++i)
+ {
+ if(cf)r+=' ';else cf=true;
+ r+=i->first+"=\""+i->second+"\"";
+ }
+ return r;
+ }
+};
+static const char* twoxx[]={
+ "OK",
+ "Created",
+ "Accepted",
+ "Non-Authoritative Information",
+ "No Content",
+ "Reset Content",
+ "Partial Content",
+ "Multi-Status",
+ "Already Reported"
+};
+static const char* threexx[]={
+ "Multiple Choices",
+ "Moved Permanently",
+ "Found",
+ "See Other",
+ "Not Modified",
+ "Use Proxy",
+ "???",
+ "Temporary Redirect"
+};
+static const char* fourxx[]={
+ "Bad Request",
+ "Unauthorized",
+ "Payment Required",
+ "Forbidden",
+ "Not Found",
+ "Method Not Allowed",
+ "Not Acceptable",
+ "Proxy Authentication Required",
+ "Request Timeout",
+ "Conflict",
+ "Gone",
+ "Length Required",
+ "Precondition Failed",
+ "Request Entity Too Large",
+ "Request-URI Too Long",
+ "Unsupported Media Type",
+ "Requested Range Not Satisfiable",
+ "Expectation Failed"
+};
+static const char* fivexx[]={
+ "Internal Server Error",
+ "Not Implemented",
+ "Bad Gateway",
+ "Service Unavailable",
+ "Gateway Timeout",
+ "HTTP Version Not Supported"
+};
+class HTTPHeader
+{
+private:
+ int status;
+ std::vector<std::string> hdr;
+public:
+ HTTPHeader(){status=200;}
+ void setStatusCode(int c){status=c;}
+ int statusCode(){return status;}
+ void appendHeader(std::string s){hdr.push_back(s);}
+ void print()
+ {
+ if(status>=200&&status<=208)
+ printf("Status: %d %s\r\n",status,twoxx[status-200]);
+ if(status>=300&&status<=307)
+ printf("Status: %d %s\r\n",status,threexx[status-300]);
+ if(status>=400&&status<=417)
+ printf("Status: %d %s\r\n",status,fourxx[status-400]);
+ if(status>=500&&status<=505)
+ printf("Status: %d %s\r\n",status,fivexx[status-500]);
+ for(unsigned i=0;i<hdr.size();++i)
+ printf("%s\r\n",hdr[i].c_str());
+ printf("\r\n");
+ }
+};
+#endif
diff --git a/blog/sbs_2/cgi-src/get-archive-list b/blog/sbs_2/cgi-src/get-archive-list
new file mode 100755
index 0000000..4285a4d
--- /dev/null
+++ b/blog/sbs_2/cgi-src/get-archive-list
Binary files differ
diff --git a/blog/sbs_2/cgi-src/get-archive-list.cpp b/blog/sbs_2/cgi-src/get-archive-list.cpp
new file mode 100644
index 0000000..28f316d
--- /dev/null
+++ b/blog/sbs_2/cgi-src/get-archive-list.cpp
@@ -0,0 +1,200 @@
+/*
+ * Copyright 2017 Chris Xiong
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining
+ * a copy of this software and associated documentation files (the
+ * "Software"), to deal in the Software without restriction, including
+ * without limitation the rights to use, copy, modify, merge, publish,
+ * distribute, sublicense, and/or sell copies of the Software, and to
+ * permit persons to whom the Software is furnished to do so, subject to
+ * the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be
+ * included in all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
+ * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
+ * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
+ * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS
+ * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
+ * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
+ * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+ * SOFTWARE.
+ */
+/*
+ * Get list of archives
+ * query parameters:
+ * pn=<int>: page number, defaults to 0
+ * pp=<int>: number of posts per page, defaults to 20
+ * pc: if exists, gets how many pages are there from the current pp value
+ * f: tag filter.
+ * gt: get a list of tags used by posts instead.
+ * qn=<filename>: query the neibouring posts of the given post.
+ * returned object:
+ * A number if pc exists denoting number of pages.
+ * Or the following JSON object if gf exists.
+ * ["tag1","tag2",...]
+ * Or the following JSON object if qn exists.
+ * {
+ * "prev": <last post>
+ * "succ": <next post>
+ * }
+ * Otherwise returns archive list in JSON:
+ * {
+ * "postsPerPage": <requested pp>
+ * "postsOnPage": <number of posts on this page>
+ * "page": <requested pn>
+ * "posts": [
+ * {
+ * "filename": ...
+ * "title": ...
+ * "date": ...
+ * "tags": ...
+ * },
+ * ...
+ * ]
+ * }
+ */
+#include <dirent.h>
+#include <sys/types.h>
+#include <sys/stat.h>
+#include <unistd.h>
+#include <cstdio>
+#include <cstring>
+#include <algorithm>
+#include <functional>
+#include <vector>
+#include <map>
+#include <set>
+#include <string>
+#include "cgiutils.hpp"
+#define stripr(s) s[strlen(s)-1]=='\n'?s[strlen(s)-1]=0:0
+struct post
+{
+ std::string t,d,tg;
+};
+std::map<std::string,post,std::greater<std::string>> f;
+char buf[65536];
+int main(int argc,char** argv,char** envp)
+{
+ struct stat idxs,cdirs;
+ stat("/var/www/html/blog/content/pindex",&idxs);
+ stat("/var/www/html/blog/content",&cdirs);
+ if(cdirs.st_mtim.tv_sec>idxs.st_mtim.tv_sec)
+ system("/var/www/html/blog/content/util/indexer > /dev/null 2> /dev/null");
+ QueryStrParser a;
+ FILE *fidx=fopen("/var/www/html/blog/content/pindex","r");
+ while(fgets(buf,65536,fidx))
+ {
+ stripr(buf);std::vector<std::string> v;
+ split(std::string(buf),'\t',v);
+ if(v.size()==4)
+ f[v[0]]=post{v[1],v[2],v[3]};
+ }
+ fclose(fidx);
+ HTTPHeader h;
+ if(a.exist("gt"))
+ {
+ std::set<std::string> s;
+ std::vector<std::string> v;
+ for(auto i=f.begin();i!=f.end();++i)
+ {
+ split(i->second.tg,',',v);
+ for(size_t j=0;j<v.size();++j)
+ s.insert("\"#"+v[j]+"\"");
+ }
+ h.appendHeader("Content-type: text/plain; charset=utf-8");
+ h.print();
+ printf("[");
+ auto it=s.begin();
+ printf("%s",it->c_str());
+ while(++it!=s.end())printf(",%s",it->c_str());
+ printf("]");
+ }
+ else
+ {
+ if(a.exist("f"))
+ for(auto i=f.begin();i!=f.end();)
+ {
+ std::vector<std::string> v;
+ split(i->second.tg,',',v);
+ std::set<std::string> sv=std::set<std::string>(v.begin(),v.end());
+ if(sv.find(a.value("f"))==sv.end()){auto t=i++;f.erase(t);}
+ else i++;
+ }
+ if(a.exist("pc"))
+ {
+ int pp=0;
+ if(!a.exist("pp"))pp=20;
+ else{
+ try{
+ pp=std::stoi(a.value("pp"));
+ }catch(std::exception e){h.setStatusCode(400);}
+ }
+ if(!pp)h.setStatusCode(400);
+ h.appendHeader("Content-type: text/plain; charset=utf-8");
+ h.print();
+ printf("%lu\n",f.size()/pp+((f.size()%pp)?1:0));
+ return 0;
+ }
+ else if(a.exist("qn"))
+ {
+ if(f.find(a.value("qn"))==f.end())
+ h.setStatusCode(400);
+ h.print();if(h.statusCode()>=400)return 0;
+ auto i=f.find(a.value("qn"));
+ std::string pr="",sc="";
+ auto t=i;if(t!=f.begin())pr=(--t)->first;
+ t=i;if(!(++t==f.end()))sc=t->first;
+ printf("{\"prev\":\"%s\",\"succ\":\"%s\"}",sc.c_str(),pr.c_str());
+ return 0;
+ }
+ else
+ {
+ unsigned pp=20,pn=0;
+ if(!a.exist("pp"))pp=20;
+ else{
+ try{
+ pp=std::stoi(a.value("pp"));
+ }catch(std::exception e){h.setStatusCode(400);}
+ }
+ if(!a.exist("pn"))pn=0;
+ else{
+ try{
+ pn=std::stoi(a.value("pn"));
+ }catch(std::exception e){h.setStatusCode(400);}
+ }
+ if(!pp)h.setStatusCode(400);
+ if(pn>=f.size()/pp+((f.size()%pp)?1:0))h.setStatusCode(400);
+ int rpp=(pn!=f.size()/pp+((f.size()%pp)?1:0)-1)?pp:
+ f.size()-pp*(f.size()/pp+((f.size()%pp)?1:0)-1);
+ h.appendHeader("Content-type: text/plain; charset=utf-8");
+ h.print();
+ if(h.statusCode()>=400)return 0;
+ puts("{");
+ printf("\t\"postsPerPage\":%d,\n",pp);
+ printf("\t\"postsOnPage\":%d,\n",rpp);
+ printf("\t\"page\":%d,\n",pn);
+ puts("\t\"posts\": [");
+ auto it=f.begin();std::advance(it,pn*pp);
+ for(int i=0;i<rpp-1;++i)
+ {
+ puts("\t\t{");
+ printf("\t\t\t\"filename\":\"%s\",\n",it->first.c_str());
+ printf("\t\t\t\"title\":\"%s\",\n",it->second.t.c_str());
+ printf("\t\t\t\"date\":\"%s\",\n",it->second.d.c_str());
+ printf("\t\t\t\"tags\":\"%s\"\n",it->second.tg.c_str());
+ puts("\t\t},");++it;
+ }
+ puts("\t\t{");
+ printf("\t\t\t\"filename\":\"%s\",\n",it->first.c_str());
+ printf("\t\t\t\"title\":\"%s\",\n",it->second.t.c_str());
+ printf("\t\t\t\"date\":\"%s\",\n",it->second.d.c_str());
+ printf("\t\t\t\"tags\":\"%s\"\n",it->second.tg.c_str());
+ puts("\t\t}");
+ puts("\t]");
+ puts("}");
+ }
+ }
+ return 0;
+}
diff --git a/blog/sbs_2/cgi-src/get-post-content b/blog/sbs_2/cgi-src/get-post-content
new file mode 100755
index 0000000..e6701c8
--- /dev/null
+++ b/blog/sbs_2/cgi-src/get-post-content
Binary files differ
diff --git a/blog/sbs_2/cgi-src/get-post-content.cpp b/blog/sbs_2/cgi-src/get-post-content.cpp
new file mode 100644
index 0000000..62cd5d8
--- /dev/null
+++ b/blog/sbs_2/cgi-src/get-post-content.cpp
@@ -0,0 +1,83 @@
+/*
+ * Copyright 2017 Chris Xiong
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining
+ * a copy of this software and associated documentation files (the
+ * "Software"), to deal in the Software without restriction, including
+ * without limitation the rights to use, copy, modify, merge, publish,
+ * distribute, sublicense, and/or sell copies of the Software, and to
+ * permit persons to whom the Software is furnished to do so, subject to
+ * the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be
+ * included in all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
+ * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
+ * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
+ * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS
+ * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
+ * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
+ * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+ * SOFTWARE.
+ */
+/*
+ * Get content of a post
+ * query parameters:
+ * p=<string>: post file name
+ * returned object:
+ * HTML fragment of the post
+ */
+#include <dirent.h>
+#include <cstdio>
+#include <cstring>
+#include <algorithm>
+#include <functional>
+#include <vector>
+#include <string>
+#include "cgiutils.hpp"
+#define stripr(s) s[strlen(s)-1]=='\n'?s[strlen(s)-1]=0:0
+std::vector<std::string> fn;
+char buf[262144];
+size_t sz;
+void encrypt()
+{
+ std::string b(buf,sz);
+ for(size_t p=b.find("<encrypted"),i=0;p!=std::string::npos;p=b.find("<encrypted",p),++i)
+ {
+ size_t tag_end=b.find(">",p);
+ std::string attrib=b.substr(p+11,tag_end-p-11);
+ DOMAttrib a(attrib);
+ std::string cont=b.substr(tag_end+1,b.find("</encrypted>",p)-tag_end-1);
+ unsigned hash=5381;
+ std::string key=a.getAttrib("key");
+ a.eraseAttrib("key");
+ for(size_t j=0;j<cont.length();++j)
+ {
+ hash=((hash<<5)+hash)+*reinterpret_cast<unsigned char*>(&cont[j]);
+ cont[j]^=key[j%key.length()];
+ }
+ a.setAttrib("encont",base64_encode(cont));
+ a.setAttrib("hash",std::to_string(hash));
+ a.setAttrib("id","encrypted"+std::to_string(i));
+ cont="Encrypted content here. Click <a href=\"javascript:void(0)\" onclick=\"decryptui("+std::to_string(i)+")\">here</a> to decrypt.";
+ b.replace(p,b.find("</encrypted>",p)-p,"<encrypted "+a.to_string()+">"+cont);
+ p=b.find("</encrypted>",p);
+ }
+ memcpy(buf,b.c_str(),b.length());sz=b.length();
+}
+int main(int argc,char** argv,char** envp)
+{
+ QueryStrParser a;
+ HTTPHeader h;
+ if(!a.exist("p")){h.setStatusCode(400);h.print();return 0;}
+ FILE* f=fopen(("/var/www/html/blog/content/"+a.value("p")+".txt").c_str(),"r");
+ if(!f){h.setStatusCode(400);h.print();return 0;}
+ h.appendHeader("Content-type: text/plain; charset=utf-8");
+ h.print();
+ sz=fread(buf,sizeof(char),262144,f);
+ encrypt();
+ fwrite(buf,sizeof(char),sz,stdout);
+ fclose(f);
+ return 0;
+}
generated by cgit v1.2.3 (git 2.39.1) at 2024-11-22 11:28:20 +0000